Первый прототип с основными возможностями

.air.toml

@@ -0,0 +1,18 @@
+root = "."
+tmp_dir = ".air"
+
+[build]
+pre_cmd = ["killall -9 muninn 2>/dev/null || true"] # kill off potential zombie processes from previous runs
+cmd = "make --no-print-directory build"
+bin = "muninn"
+delay = 2000
+include_ext = ["go"]
+include_file = ["main.go"]
+include_dir = []
+exclude_dir = [
+]
+exclude_regex = ["_test.go$", "_gen.go$"]
+stop_on_error = true
+
+[log]
+main_only = true

.gitignore

@@ -21,3 +21,6 @@
 # Go workspace file
 go.work
 
+.air/
+/muninn
+

Makefile

@@ -0,0 +1,22 @@
+AIR_PACKAGE ?= github.com/air-verse/air@v1
+
+GO ?= go
+HAS_GO := $(shell hash $(GO) > /dev/null 2>&1 && echo yes)
+
+GOFLAGS := -v
+EXECUTABLE ?= muninn
+
+.PHONY: $(EXECUTABLE)
+$(EXECUTABLE):
+	$(GO) build $(GOFLAGS) $(EXTRA_GOFLAGS) -tags '$(TAGS)' -ldflags '-s -w $(LDFLAGS)' -o $@
+
+.PHONY: build
+build: $(EXECUTABLE)
+
+.PHONY: deps-tools
+deps-tools:
+	$(GO) install $(AIR_PACKAGE)
+
+.PHONY: watch
+watch:
+	$(GO) run $(AIR_PACKAGE) -c .air.toml

README.md

@@ -1,2 +1 @@
-# muninn-simple
-
+# Muninn All-In-One

config/env.go

@@ -0,0 +1,24 @@
+package config
+
+import (
+	"github.com/kelseyhightower/envconfig"
+)
+
+type Specification struct {
+	AppPort       string `envconfig:"APP_PORT" default:":3000"`
+	AppUrl        string `envconfig:"APP_URL" required:"true"`
+	DBType        string `envconfig:"DATABASE_TYPE" default:"sqlite3"`
+	DBDSN         string `envconfig:"DATABASE_DSN" default:"file:muninn.db?&cache=shared&_fk=1"`
+	TelegramToken string `envconfig:"TELEGRAM_TOKEN" required:"true"`
+	// DBSSLMode
+}
+
+var Env Specification
+
+func Load() {
+	err := envconfig.Process("muninn", &Env)
+
+	if err != nil {
+		panic(err)
+	}
+}

db/ent.go

@@ -0,0 +1,41 @@
+package db
+
+import (
+	"context"
+	"log"
+
+	"code.gurenya.net/carlsmei/muninn-aio/config"
+	"code.gurenya.net/carlsmei/muninn-aio/ent"
+)
+
+var (
+	entClient *ent.Client
+)
+
+func GetEntClient() *ent.Client {
+	return entClient
+}
+
+func SetEntClient(new *ent.Client) {
+	entClient = new
+}
+
+func EntInit() {
+	driver := config.Env.DBType
+	dsn := config.Env.DBDSN
+
+	if driver != "sqlite3" && driver != "pq" && driver != "mysql" {
+		panic("unsupported driver")
+	}
+
+	client, err := ent.Open(driver, dsn)
+	if err != nil {
+		log.Fatalf("failed opening connection to sqlite: %v", err)
+	}
+
+	if err := client.Schema.Create(context.Background()); err != nil {
+		log.Fatalf("failed creating schema resources: %v", err)
+	}
+
+	entClient = client
+}

ent/client.go

@@ -0,0 +1,517 @@
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"log"
+	"reflect"
+
+	"code.gurenya.net/carlsmei/muninn-aio/ent/migrate"
+	"github.com/google/uuid"
+
+	"code.gurenya.net/carlsmei/muninn-aio/ent/link"
+	"code.gurenya.net/carlsmei/muninn-aio/ent/user"
+	"entgo.io/ent"
+	"entgo.io/ent/dialect"
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+)
+
+// Client is the client that holds all ent builders.
+type Client struct {
+	config
+	// Schema is the client for creating, migrating and dropping schema.
+	Schema *migrate.Schema
+	// Link is the client for interacting with the Link builders.
+	Link *LinkClient
+	// User is the client for interacting with the User builders.
+	User *UserClient
+}
+
+// NewClient creates a new client configured with the given options.
+func NewClient(opts ...Option) *Client {
+	client := &Client{config: newConfig(opts...)}
+	client.init()
+	return client
+}
+
+func (c *Client) init() {
+	c.Schema = migrate.NewSchema(c.driver)
+	c.Link = NewLinkClient(c.config)
+	c.User = NewUserClient(c.config)
+}
+
+type (
+	// config is the configuration for the client and its builder.
+	config struct {
+		// driver used for executing database requests.
+		driver dialect.Driver
+		// debug enable a debug logging.
+		debug bool
+		// log used for logging on debug mode.
+		log func(...any)
+		// hooks to execute on mutations.
+		hooks *hooks
+		// interceptors to execute on queries.
+		inters *inters
+	}
+	// Option function to configure the client.
+	Option func(*config)
+)
+
+// newConfig creates a new config for the client.
+func newConfig(opts ...Option) config {
+	cfg := config{log: log.Println, hooks: &hooks{}, inters: &inters{}}
+	cfg.options(opts...)
+	return cfg
+}
+
+// options applies the options on the config object.
+func (c *config) options(opts ...Option) {
+	for _, opt := range opts {
+		opt(c)
+	}
+	if c.debug {
+		c.driver = dialect.Debug(c.driver, c.log)
+	}
+}
+
+// Debug enables debug logging on the ent.Driver.
+func Debug() Option {
+	return func(c *config) {
+		c.debug = true
+	}
+}
+
+// Log sets the logging function for debug mode.
+func Log(fn func(...any)) Option {
+	return func(c *config) {
+		c.log = fn
+	}
+}
+
+// Driver configures the client driver.
+func Driver(driver dialect.Driver) Option {
+	return func(c *config) {
+		c.driver = driver
+	}
+}
+
+// Open opens a database/sql.DB specified by the driver name and
+// the data source name, and returns a new client attached to it.
+// Optional parameters can be added for configuring the client.
+func Open(driverName, dataSourceName string, options ...Option) (*Client, error) {
+	switch driverName {
+	case dialect.MySQL, dialect.Postgres, dialect.SQLite:
+		drv, err := sql.Open(driverName, dataSourceName)
+		if err != nil {
+			return nil, err
+		}
+		return NewClient(append(options, Driver(drv))...), nil
+	default:
+		return nil, fmt.Errorf("unsupported driver: %q", driverName)
+	}
+}
+
+// ErrTxStarted is returned when trying to start a new transaction from a transactional client.
+var ErrTxStarted = errors.New("ent: cannot start a transaction within a transaction")
+
+// Tx returns a new transactional client. The provided context
+// is used until the transaction is committed or rolled back.
+func (c *Client) Tx(ctx context.Context) (*Tx, error) {
+	if _, ok := c.driver.(*txDriver); ok {
+		return nil, ErrTxStarted
+	}
+	tx, err := newTx(ctx, c.driver)
+	if err != nil {
+		return nil, fmt.Errorf("ent: starting a transaction: %w", err)
+	}
+	cfg := c.config
+	cfg.driver = tx
+	return &Tx{
+		ctx:    ctx,
+		config: cfg,
+		Link:   NewLinkClient(cfg),
+		User:   NewUserClient(cfg),
+	}, nil
+}
+
+// BeginTx returns a transactional client with specified options.
+func (c *Client) BeginTx(ctx context.Context, opts *sql.TxOptions) (*Tx, error) {
+	if _, ok := c.driver.(*txDriver); ok {
+		return nil, errors.New("ent: cannot start a transaction within a transaction")
+	}
+	tx, err := c.driver.(interface {
+		BeginTx(context.Context, *sql.TxOptions) (dialect.Tx, error)
+	}).BeginTx(ctx, opts)
+	if err != nil {
+		return nil, fmt.Errorf("ent: starting a transaction: %w", err)
+	}
+	cfg := c.config
+	cfg.driver = &txDriver{tx: tx, drv: c.driver}
+	return &Tx{
+		ctx:    ctx,
+		config: cfg,
+		Link:   NewLinkClient(cfg),
+		User:   NewUserClient(cfg),
+	}, nil
+}
+
+// Debug returns a new debug-client. It's used to get verbose logging on specific operations.
+//
+//	client.Debug().
+//		Link.
+//		Query().
+//		Count(ctx)
+func (c *Client) Debug() *Client {
+	if c.debug {
+		return c
+	}
+	cfg := c.config
+	cfg.driver = dialect.Debug(c.driver, c.log)
+	client := &Client{config: cfg}
+	client.init()
+	return client
+}
+
+// Close closes the database connection and prevents new queries from starting.
+func (c *Client) Close() error {
+	return c.driver.Close()
+}
+
+// Use adds the mutation hooks to all the entity clients.
+// In order to add hooks to a specific client, call: `client.Node.Use(...)`.
+func (c *Client) Use(hooks ...Hook) {
+	c.Link.Use(hooks...)
+	c.User.Use(hooks...)
+}
+
+// Intercept adds the query interceptors to all the entity clients.
+// In order to add interceptors to a specific client, call: `client.Node.Intercept(...)`.
+func (c *Client) Intercept(interceptors ...Interceptor) {
+	c.Link.Intercept(interceptors...)
+	c.User.Intercept(interceptors...)
+}
+
+// Mutate implements the ent.Mutator interface.
+func (c *Client) Mutate(ctx context.Context, m Mutation) (Value, error) {
+	switch m := m.(type) {
+	case *LinkMutation:
+		return c.Link.mutate(ctx, m)
+	case *UserMutation:
+		return c.User.mutate(ctx, m)
+	default:
+		return nil, fmt.Errorf("ent: unknown mutation type %T", m)
+	}
+}
+
+// LinkClient is a client for the Link schema.
+type LinkClient struct {
+	config
+}
+
+// NewLinkClient returns a client for the Link from the given config.
+func NewLinkClient(c config) *LinkClient {
+	return &LinkClient{config: c}
+}
+
+// Use adds a list of mutation hooks to the hooks stack.
+// A call to `Use(f, g, h)` equals to `link.Hooks(f(g(h())))`.
+func (c *LinkClient) Use(hooks ...Hook) {
+	c.hooks.Link = append(c.hooks.Link, hooks...)
+}
+
+// Intercept adds a list of query interceptors to the interceptors stack.
+// A call to `Intercept(f, g, h)` equals to `link.Intercept(f(g(h())))`.
+func (c *LinkClient) Intercept(interceptors ...Interceptor) {
+	c.inters.Link = append(c.inters.Link, interceptors...)
+}
+
+// Create returns a builder for creating a Link entity.
+func (c *LinkClient) Create() *LinkCreate {
+	mutation := newLinkMutation(c.config, OpCreate)
+	return &LinkCreate{config: c.config, hooks: c.Hooks(), mutation: mutation}
+}
+
+// CreateBulk returns a builder for creating a bulk of Link entities.
+func (c *LinkClient) CreateBulk(builders ...*LinkCreate) *LinkCreateBulk {
+	return &LinkCreateBulk{config: c.config, builders: builders}
+}
+
+// MapCreateBulk creates a bulk creation builder from the given slice. For each item in the slice, the function creates
+// a builder and applies setFunc on it.
+func (c *LinkClient) MapCreateBulk(slice any, setFunc func(*LinkCreate, int)) *LinkCreateBulk {
+	rv := reflect.ValueOf(slice)
+	if rv.Kind() != reflect.Slice {
+		return &LinkCreateBulk{err: fmt.Errorf("calling to LinkClient.MapCreateBulk with wrong type %T, need slice", slice)}
+	}
+	builders := make([]*LinkCreate, rv.Len())
+	for i := 0; i < rv.Len(); i++ {
+		builders[i] = c.Create()
+		setFunc(builders[i], i)
+	}
+	return &LinkCreateBulk{config: c.config, builders: builders}
+}
+
+// Update returns an update builder for Link.
+func (c *LinkClient) Update() *LinkUpdate {
+	mutation := newLinkMutation(c.config, OpUpdate)
+	return &LinkUpdate{config: c.config, hooks: c.Hooks(), mutation: mutation}
+}
+
+// UpdateOne returns an update builder for the given entity.
+func (c *LinkClient) UpdateOne(l *Link) *LinkUpdateOne {
+	mutation := newLinkMutation(c.config, OpUpdateOne, withLink(l))
+	return &LinkUpdateOne{config: c.config, hooks: c.Hooks(), mutation: mutation}
+}
+
+// UpdateOneID returns an update builder for the given id.
+func (c *LinkClient) UpdateOneID(id uuid.UUID) *LinkUpdateOne {
+	mutation := newLinkMutation(c.config, OpUpdateOne, withLinkID(id))
+	return &LinkUpdateOne{config: c.config, hooks: c.Hooks(), mutation: mutation}
+}
+
+// Delete returns a delete builder for Link.
+func (c *LinkClient) Delete() *LinkDelete {
+	mutation := newLinkMutation(c.config, OpDelete)
+	return &LinkDelete{config: c.config, hooks: c.Hooks(), mutation: mutation}
+}
+
+// DeleteOne returns a builder for deleting the given entity.
+func (c *LinkClient) DeleteOne(l *Link) *LinkDeleteOne {
+	return c.DeleteOneID(l.ID)
+}
+
+// DeleteOneID returns a builder for deleting the given entity by its id.
+func (c *LinkClient) DeleteOneID(id uuid.UUID) *LinkDeleteOne {
+	builder := c.Delete().Where(link.ID(id))
+	builder.mutation.id = &id
+	builder.mutation.op = OpDeleteOne
+	return &LinkDeleteOne{builder}
+}
+
+// Query returns a query builder for Link.
+func (c *LinkClient) Query() *LinkQuery {
+	return &LinkQuery{
+		config: c.config,
+		ctx:    &QueryContext{Type: TypeLink},
+		inters: c.Interceptors(),
+	}
+}
+
+// Get returns a Link entity by its id.
+func (c *LinkClient) Get(ctx context.Context, id uuid.UUID) (*Link, error) {
+	return c.Query().Where(link.ID(id)).Only(ctx)
+}
+
+// GetX is like Get, but panics if an error occurs.
+func (c *LinkClient) GetX(ctx context.Context, id uuid.UUID) *Link {
+	obj, err := c.Get(ctx, id)
+	if err != nil {
+		panic(err)
+	}
+	return obj
+}
+
+// QueryOwner queries the owner edge of a Link.
+func (c *LinkClient) QueryOwner(l *Link) *UserQuery {
+	query := (&UserClient{config: c.config}).Query()
+	query.path = func(context.Context) (fromV *sql.Selector, _ error) {
+		id := l.ID
+		step := sqlgraph.NewStep(
+			sqlgraph.From(link.Table, link.FieldID, id),
+			sqlgraph.To(user.Table, user.FieldID),
+			sqlgraph.Edge(sqlgraph.M2M, true, link.OwnerTable, link.OwnerPrimaryKey...),
+		)
+		fromV = sqlgraph.Neighbors(l.driver.Dialect(), step)
+		return fromV, nil
+	}
+	return query
+}
+
+// Hooks returns the client hooks.
+func (c *LinkClient) Hooks() []Hook {
+	return c.hooks.Link
+}
+
+// Interceptors returns the client interceptors.
+func (c *LinkClient) Interceptors() []Interceptor {
+	return c.inters.Link
+}
+
+func (c *LinkClient) mutate(ctx context.Context, m *LinkMutation) (Value, error) {
+	switch m.Op() {
+	case OpCreate:
+		return (&LinkCreate{config: c.config, hooks: c.Hooks(), mutation: m}).Save(ctx)
+	case OpUpdate:
+		return (&LinkUpdate{config: c.config, hooks: c.Hooks(), mutation: m}).Save(ctx)
+	case OpUpdateOne:
+		return (&LinkUpdateOne{config: c.config, hooks: c.Hooks(), mutation: m}).Save(ctx)
+	case OpDelete, OpDeleteOne:
+		return (&LinkDelete{config: c.config, hooks: c.Hooks(), mutation: m}).Exec(ctx)
+	default:
+		return nil, fmt.Errorf("ent: unknown Link mutation op: %q", m.Op())
+	}
+}
+
+// UserClient is a client for the User schema.
+type UserClient struct {
+	config
+}
+
+// NewUserClient returns a client for the User from the given config.
+func NewUserClient(c config) *UserClient {
+	return &UserClient{config: c}
+}
+
+// Use adds a list of mutation hooks to the hooks stack.
+// A call to `Use(f, g, h)` equals to `user.Hooks(f(g(h())))`.
+func (c *UserClient) Use(hooks ...Hook) {
+	c.hooks.User = append(c.hooks.User, hooks...)
+}
+
+// Intercept adds a list of query interceptors to the interceptors stack.
+// A call to `Intercept(f, g, h)` equals to `user.Intercept(f(g(h())))`.
+func (c *UserClient) Intercept(interceptors ...Interceptor) {
+	c.inters.User = append(c.inters.User, interceptors...)
+}
+
+// Create returns a builder for creating a User entity.
+func (c *UserClient) Create() *UserCreate {
+	mutation := newUserMutation(c.config, OpCreate)
+	return &UserCreate{config: c.config, hooks: c.Hooks(), mutation: mutation}
+}
+
+// CreateBulk returns a builder for creating a bulk of User entities.
+func (c *UserClient) CreateBulk(builders ...*UserCreate) *UserCreateBulk {
+	return &UserCreateBulk{config: c.config, builders: builders}
+}
+
+// MapCreateBulk creates a bulk creation builder from the given slice. For each item in the slice, the function creates
+// a builder and applies setFunc on it.
+func (c *UserClient) MapCreateBulk(slice any, setFunc func(*UserCreate, int)) *UserCreateBulk {
+	rv := reflect.ValueOf(slice)
+	if rv.Kind() != reflect.Slice {
+		return &UserCreateBulk{err: fmt.Errorf("calling to UserClient.MapCreateBulk with wrong type %T, need slice", slice)}
+	}
+	builders := make([]*UserCreate, rv.Len())
+	for i := 0; i < rv.Len(); i++ {
+		builders[i] = c.Create()
+		setFunc(builders[i], i)
+	}
+	return &UserCreateBulk{config: c.config, builders: builders}
+}
+
+// Update returns an update builder for User.
+func (c *UserClient) Update() *UserUpdate {
+	mutation := newUserMutation(c.config, OpUpdate)
+	return &UserUpdate{config: c.config, hooks: c.Hooks(), mutation: mutation}
+}
+
+// UpdateOne returns an update builder for the given entity.
+func (c *UserClient) UpdateOne(u *User) *UserUpdateOne {
+	mutation := newUserMutation(c.config, OpUpdateOne, withUser(u))
+	return &UserUpdateOne{config: c.config, hooks: c.Hooks(), mutation: mutation}
+}
+
+// UpdateOneID returns an update builder for the given id.
+func (c *UserClient) UpdateOneID(id uuid.UUID) *UserUpdateOne {
+	mutation := newUserMutation(c.config, OpUpdateOne, withUserID(id))
+	return &UserUpdateOne{config: c.config, hooks: c.Hooks(), mutation: mutation}
+}
+
+// Delete returns a delete builder for User.
+func (c *UserClient) Delete() *UserDelete {
+	mutation := newUserMutation(c.config, OpDelete)
+	return &UserDelete{config: c.config, hooks: c.Hooks(), mutation: mutation}
+}
+
+// DeleteOne returns a builder for deleting the given entity.
+func (c *UserClient) DeleteOne(u *User) *UserDeleteOne {
+	return c.DeleteOneID(u.ID)
+}
+
+// DeleteOneID returns a builder for deleting the given entity by its id.
+func (c *UserClient) DeleteOneID(id uuid.UUID) *UserDeleteOne {
+	builder := c.Delete().Where(user.ID(id))
+	builder.mutation.id = &id
+	builder.mutation.op = OpDeleteOne
+	return &UserDeleteOne{builder}
+}
+
+// Query returns a query builder for User.
+func (c *UserClient) Query() *UserQuery {
+	return &UserQuery{
+		config: c.config,
+		ctx:    &QueryContext{Type: TypeUser},
+		inters: c.Interceptors(),
+	}
+}
+
+// Get returns a User entity by its id.
+func (c *UserClient) Get(ctx context.Context, id uuid.UUID) (*User, error) {
+	return c.Query().Where(user.ID(id)).Only(ctx)
+}
+
+// GetX is like Get, but panics if an error occurs.
+func (c *UserClient) GetX(ctx context.Context, id uuid.UUID) *User {
+	obj, err := c.Get(ctx, id)
+	if err != nil {
+		panic(err)
+	}
+	return obj
+}
+
+// QueryLinks queries the links edge of a User.
+func (c *UserClient) QueryLinks(u *User) *LinkQuery {
+	query := (&LinkClient{config: c.config}).Query()
+	query.path = func(context.Context) (fromV *sql.Selector, _ error) {
+		id := u.ID
+		step := sqlgraph.NewStep(
+			sqlgraph.From(user.Table, user.FieldID, id),
+			sqlgraph.To(link.Table, link.FieldID),
+			sqlgraph.Edge(sqlgraph.M2M, false, user.LinksTable, user.LinksPrimaryKey...),
+		)
+		fromV = sqlgraph.Neighbors(u.driver.Dialect(), step)
+		return fromV, nil
+	}
+	return query
+}
+
+// Hooks returns the client hooks.
+func (c *UserClient) Hooks() []Hook {
+	return c.hooks.User
+}
+
+// Interceptors returns the client interceptors.
+func (c *UserClient) Interceptors() []Interceptor {
+	return c.inters.User
+}
+
+func (c *UserClient) mutate(ctx context.Context, m *UserMutation) (Value, error) {
+	switch m.Op() {
+	case OpCreate:
+		return (&UserCreate{config: c.config, hooks: c.Hooks(), mutation: m}).Save(ctx)
+	case OpUpdate:
+		return (&UserUpdate{config: c.config, hooks: c.Hooks(), mutation: m}).Save(ctx)
+	case OpUpdateOne:
+		return (&UserUpdateOne{config: c.config, hooks: c.Hooks(), mutation: m}).Save(ctx)
+	case OpDelete, OpDeleteOne:
+		return (&UserDelete{config: c.config, hooks: c.Hooks(), mutation: m}).Exec(ctx)
+	default:
+		return nil, fmt.Errorf("ent: unknown User mutation op: %q", m.Op())
+	}
+}
+
+// hooks and interceptors per client, for fast access.
+type (
+	hooks struct {
+		Link, User []ent.Hook
+	}
+	inters struct {
+		Link, User []ent.Interceptor
+	}
+)

ent/ent.go

@@ -0,0 +1,610 @@
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"reflect"
+	"sync"
+
+	"code.gurenya.net/carlsmei/muninn-aio/ent/link"
+	"code.gurenya.net/carlsmei/muninn-aio/ent/user"
+	"entgo.io/ent"
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+)
+
+// ent aliases to avoid import conflicts in user's code.
+type (
+	Op            = ent.Op
+	Hook          = ent.Hook
+	Value         = ent.Value
+	Query         = ent.Query
+	QueryContext  = ent.QueryContext
+	Querier       = ent.Querier
+	QuerierFunc   = ent.QuerierFunc
+	Interceptor   = ent.Interceptor
+	InterceptFunc = ent.InterceptFunc
+	Traverser     = ent.Traverser
+	TraverseFunc  = ent.TraverseFunc
+	Policy        = ent.Policy
+	Mutator       = ent.Mutator
+	Mutation      = ent.Mutation
+	MutateFunc    = ent.MutateFunc
+)
+
+type clientCtxKey struct{}
+
+// FromContext returns a Client stored inside a context, or nil if there isn't one.
+func FromContext(ctx context.Context) *Client {
+	c, _ := ctx.Value(clientCtxKey{}).(*Client)
+	return c
+}
+
+// NewContext returns a new context with the given Client attached.
+func NewContext(parent context.Context, c *Client) context.Context {
+	return context.WithValue(parent, clientCtxKey{}, c)
+}
+
+type txCtxKey struct{}
+
+// TxFromContext returns a Tx stored inside a context, or nil if there isn't one.
+func TxFromContext(ctx context.Context) *Tx {
+	tx, _ := ctx.Value(txCtxKey{}).(*Tx)
+	return tx
+}
+
+// NewTxContext returns a new context with the given Tx attached.
+func NewTxContext(parent context.Context, tx *Tx) context.Context {
+	return context.WithValue(parent, txCtxKey{}, tx)
+}
+
+// OrderFunc applies an ordering on the sql selector.
+// Deprecated: Use Asc/Desc functions or the package builders instead.
+type OrderFunc func(*sql.Selector)
+
+var (
+	initCheck   sync.Once
+	columnCheck sql.ColumnCheck
+)
+
+// checkColumn checks if the column exists in the given table.
+func checkColumn(table, column string) error {
+	initCheck.Do(func() {
+		columnCheck = sql.NewColumnCheck(map[string]func(string) bool{
+			link.Table: link.ValidColumn,
+			user.Table: user.ValidColumn,
+		})
+	})
+	return columnCheck(table, column)
+}
+
+// Asc applies the given fields in ASC order.
+func Asc(fields ...string) func(*sql.Selector) {
+	return func(s *sql.Selector) {
+		for _, f := range fields {
+			if err := checkColumn(s.TableName(), f); err != nil {
+				s.AddError(&ValidationError{Name: f, err: fmt.Errorf("ent: %w", err)})
+			}
+			s.OrderBy(sql.Asc(s.C(f)))
+		}
+	}
+}
+
+// Desc applies the given fields in DESC order.
+func Desc(fields ...string) func(*sql.Selector) {
+	return func(s *sql.Selector) {
+		for _, f := range fields {
+			if err := checkColumn(s.TableName(), f); err != nil {
+				s.AddError(&ValidationError{Name: f, err: fmt.Errorf("ent: %w", err)})
+			}
+			s.OrderBy(sql.Desc(s.C(f)))
+		}
+	}
+}
+
+// AggregateFunc applies an aggregation step on the group-by traversal/selector.
+type AggregateFunc func(*sql.Selector) string
+
+// As is a pseudo aggregation function for renaming another other functions with custom names. For example:
+//
+//	GroupBy(field1, field2).
+//	Aggregate(ent.As(ent.Sum(field1), "sum_field1"), (ent.As(ent.Sum(field2), "sum_field2")).
+//	Scan(ctx, &v)
+func As(fn AggregateFunc, end string) AggregateFunc {
+	return func(s *sql.Selector) string {
+		return sql.As(fn(s), end)
+	}
+}
+
+// Count applies the "count" aggregation function on each group.
+func Count() AggregateFunc {
+	return func(s *sql.Selector) string {
+		return sql.Count("*")
+	}
+}
+
+// Max applies the "max" aggregation function on the given field of each group.
+func Max(field string) AggregateFunc {
+	return func(s *sql.Selector) string {
+		if err := checkColumn(s.TableName(), field); err != nil {
+			s.AddError(&ValidationError{Name: field, err: fmt.Errorf("ent: %w", err)})
+			return ""
+		}
+		return sql.Max(s.C(field))
+	}
+}
+
+// Mean applies the "mean" aggregation function on the given field of each group.
+func Mean(field string) AggregateFunc {
+	return func(s *sql.Selector) string {
+		if err := checkColumn(s.TableName(), field); err != nil {
+			s.AddError(&ValidationError{Name: field, err: fmt.Errorf("ent: %w", err)})
+			return ""
+		}
+		return sql.Avg(s.C(field))
+	}
+}
+
+// Min applies the "min" aggregation function on the given field of each group.
+func Min(field string) AggregateFunc {
+	return func(s *sql.Selector) string {
+		if err := checkColumn(s.TableName(), field); err != nil {
+			s.AddError(&ValidationError{Name: field, err: fmt.Errorf("ent: %w", err)})
+			return ""
+		}
+		return sql.Min(s.C(field))
+	}
+}
+
+// Sum applies the "sum" aggregation function on the given field of each group.
+func Sum(field string) AggregateFunc {
+	return func(s *sql.Selector) string {
+		if err := checkColumn(s.TableName(), field); err != nil {
+			s.AddError(&ValidationError{Name: field, err: fmt.Errorf("ent: %w", err)})
+			return ""
+		}
+		return sql.Sum(s.C(field))
+	}
+}
+
+// ValidationError returns when validating a field or edge fails.
+type ValidationError struct {
+	Name string // Field or edge name.
+	err  error
+}
+
+// Error implements the error interface.
+func (e *ValidationError) Error() string {
+	return e.err.Error()
+}
+
+// Unwrap implements the errors.Wrapper interface.
+func (e *ValidationError) Unwrap() error {
+	return e.err
+}
+
+// IsValidationError returns a boolean indicating whether the error is a validation error.
+func IsValidationError(err error) bool {
+	if err == nil {
+		return false
+	}
+	var e *ValidationError
+	return errors.As(err, &e)
+}
+
+// NotFoundError returns when trying to fetch a specific entity and it was not found in the database.
+type NotFoundError struct {
+	label string
+}
+
+// Error implements the error interface.
+func (e *NotFoundError) Error() string {
+	return "ent: " + e.label + " not found"
+}
+
+// IsNotFound returns a boolean indicating whether the error is a not found error.
+func IsNotFound(err error) bool {
+	if err == nil {
+		return false
+	}
+	var e *NotFoundError
+	return errors.As(err, &e)
+}
+
+// MaskNotFound masks not found error.
+func MaskNotFound(err error) error {
+	if IsNotFound(err) {
+		return nil
+	}
+	return err
+}
+
+// NotSingularError returns when trying to fetch a singular entity and more then one was found in the database.
+type NotSingularError struct {
+	label string
+}
+
+// Error implements the error interface.
+func (e *NotSingularError) Error() string {
+	return "ent: " + e.label + " not singular"
+}
+
+// IsNotSingular returns a boolean indicating whether the error is a not singular error.
+func IsNotSingular(err error) bool {
+	if err == nil {
+		return false
+	}
+	var e *NotSingularError
+	return errors.As(err, &e)
+}
+
+// NotLoadedError returns when trying to get a node that was not loaded by the query.
+type NotLoadedError struct {
+	edge string
+}
+
+// Error implements the error interface.
+func (e *NotLoadedError) Error() string {
+	return "ent: " + e.edge + " edge was not loaded"
+}
+
+// IsNotLoaded returns a boolean indicating whether the error is a not loaded error.
+func IsNotLoaded(err error) bool {
+	if err == nil {
+		return false
+	}
+	var e *NotLoadedError
+	return errors.As(err, &e)
+}
+
+// ConstraintError returns when trying to create/update one or more entities and
+// one or more of their constraints failed. For example, violation of edge or
+// field uniqueness.
+type ConstraintError struct {
+	msg  string
+	wrap error
+}
+
+// Error implements the error interface.
+func (e ConstraintError) Error() string {
+	return "ent: constraint failed: " + e.msg
+}
+
+// Unwrap implements the errors.Wrapper interface.
+func (e *ConstraintError) Unwrap() error {
+	return e.wrap
+}
+
+// IsConstraintError returns a boolean indicating whether the error is a constraint failure.
+func IsConstraintError(err error) bool {
+	if err == nil {
+		return false
+	}
+	var e *ConstraintError
+	return errors.As(err, &e)
+}
+
+// selector embedded by the different Select/GroupBy builders.
+type selector struct {
+	label string
+	flds  *[]string
+	fns   []AggregateFunc
+	scan  func(context.Context, any) error
+}
+
+// ScanX is like Scan, but panics if an error occurs.
+func (s *selector) ScanX(ctx context.Context, v any) {
+	if err := s.scan(ctx, v); err != nil {
+		panic(err)
+	}
+}
+
+// Strings returns list of strings from a selector. It is only allowed when selecting one field.
+func (s *selector) Strings(ctx context.Context) ([]string, error) {
+	if len(*s.flds) > 1 {
+		return nil, errors.New("ent: Strings is not achievable when selecting more than 1 field")
+	}
+	var v []string
+	if err := s.scan(ctx, &v); err != nil {
+		return nil, err
+	}
+	return v, nil
+}
+
+// StringsX is like Strings, but panics if an error occurs.
+func (s *selector) StringsX(ctx context.Context) []string {
+	v, err := s.Strings(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+// String returns a single string from a selector. It is only allowed when selecting one field.
+func (s *selector) String(ctx context.Context) (_ string, err error) {
+	var v []string
+	if v, err = s.Strings(ctx); err != nil {
+		return
+	}
+	switch len(v) {
+	case 1:
+		return v[0], nil
+	case 0:
+		err = &NotFoundError{s.label}
+	default:
+		err = fmt.Errorf("ent: Strings returned %d results when one was expected", len(v))
+	}
+	return
+}
+
+// StringX is like String, but panics if an error occurs.
+func (s *selector) StringX(ctx context.Context) string {
+	v, err := s.String(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+// Ints returns list of ints from a selector. It is only allowed when selecting one field.
+func (s *selector) Ints(ctx context.Context) ([]int, error) {
+	if len(*s.flds) > 1 {
+		return nil, errors.New("ent: Ints is not achievable when selecting more than 1 field")
+	}
+	var v []int
+	if err := s.scan(ctx, &v); err != nil {
+		return nil, err
+	}
+	return v, nil
+}
+
+// IntsX is like Ints, but panics if an error occurs.
+func (s *selector) IntsX(ctx context.Context) []int {
+	v, err := s.Ints(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+// Int returns a single int from a selector. It is only allowed when selecting one field.
+func (s *selector) Int(ctx context.Context) (_ int, err error) {
+	var v []int
+	if v, err = s.Ints(ctx); err != nil {
+		return
+	}
+	switch len(v) {
+	case 1:
+		return v[0], nil
+	case 0:
+		err = &NotFoundError{s.label}
+	default:
+		err = fmt.Errorf("ent: Ints returned %d results when one was expected", len(v))
+	}
+	return
+}
+
+// IntX is like Int, but panics if an error occurs.
+func (s *selector) IntX(ctx context.Context) int {
+	v, err := s.Int(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+// Float64s returns list of float64s from a selector. It is only allowed when selecting one field.
+func (s *selector) Float64s(ctx context.Context) ([]float64, error) {
+	if len(*s.flds) > 1 {
+		return nil, errors.New("ent: Float64s is not achievable when selecting more than 1 field")
+	}
+	var v []float64
+	if err := s.scan(ctx, &v); err != nil {
+		return nil, err
+	}
+	return v, nil
+}
+
+// Float64sX is like Float64s, but panics if an error occurs.
+func (s *selector) Float64sX(ctx context.Context) []float64 {
+	v, err := s.Float64s(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+// Float64 returns a single float64 from a selector. It is only allowed when selecting one field.
+func (s *selector) Float64(ctx context.Context) (_ float64, err error) {
+	var v []float64
+	if v, err = s.Float64s(ctx); err != nil {
+		return
+	}
+	switch len(v) {
+	case 1:
+		return v[0], nil
+	case 0:
+		err = &NotFoundError{s.label}
+	default:
+		err = fmt.Errorf("ent: Float64s returned %d results when one was expected", len(v))
+	}
+	return
+}
+
+// Float64X is like Float64, but panics if an error occurs.
+func (s *selector) Float64X(ctx context.Context) float64 {
+	v, err := s.Float64(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+// Bools returns list of bools from a selector. It is only allowed when selecting one field.
+func (s *selector) Bools(ctx context.Context) ([]bool, error) {
+	if len(*s.flds) > 1 {
+		return nil, errors.New("ent: Bools is not achievable when selecting more than 1 field")
+	}
+	var v []bool
+	if err := s.scan(ctx, &v); err != nil {
+		return nil, err
+	}
+	return v, nil
+}
+
+// BoolsX is like Bools, but panics if an error occurs.
+func (s *selector) BoolsX(ctx context.Context) []bool {
+	v, err := s.Bools(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+// Bool returns a single bool from a selector. It is only allowed when selecting one field.
+func (s *selector) Bool(ctx context.Context) (_ bool, err error) {
+	var v []bool
+	if v, err = s.Bools(ctx); err != nil {
+		return
+	}
+	switch len(v) {
+	case 1:
+		return v[0], nil
+	case 0:
+		err = &NotFoundError{s.label}
+	default:
+		err = fmt.Errorf("ent: Bools returned %d results when one was expected", len(v))
+	}
+	return
+}
+
+// BoolX is like Bool, but panics if an error occurs.
+func (s *selector) BoolX(ctx context.Context) bool {
+	v, err := s.Bool(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+// withHooks invokes the builder operation with the given hooks, if any.
+func withHooks[V Value, M any, PM interface {
+	*M
+	Mutation
+}](ctx context.Context, exec func(context.Context) (V, error), mutation PM, hooks []Hook) (value V, err error) {
+	if len(hooks) == 0 {
+		return exec(ctx)
+	}
+	var mut Mutator = MutateFunc(func(ctx context.Context, m Mutation) (Value, error) {
+		mutationT, ok := any(m).(PM)
+		if !ok {
+			return nil, fmt.Errorf("unexpected mutation type %T", m)
+		}
+		// Set the mutation to the builder.
+		*mutation = *mutationT
+		return exec(ctx)
+	})
+	for i := len(hooks) - 1; i >= 0; i-- {
+		if hooks[i] == nil {
+			return value, fmt.Errorf("ent: uninitialized hook (forgotten import ent/runtime?)")
+		}
+		mut = hooks[i](mut)
+	}
+	v, err := mut.Mutate(ctx, mutation)
+	if err != nil {
+		return value, err
+	}
+	nv, ok := v.(V)
+	if !ok {
+		return value, fmt.Errorf("unexpected node type %T returned from %T", v, mutation)
+	}
+	return nv, nil
+}
+
+// setContextOp returns a new context with the given QueryContext attached (including its op) in case it does not exist.
+func setContextOp(ctx context.Context, qc *QueryContext, op string) context.Context {
+	if ent.QueryFromContext(ctx) == nil {
+		qc.Op = op
+		ctx = ent.NewQueryContext(ctx, qc)
+	}
+	return ctx
+}
+
+func querierAll[V Value, Q interface {
+	sqlAll(context.Context, ...queryHook) (V, error)
+}]() Querier {
+	return QuerierFunc(func(ctx context.Context, q Query) (Value, error) {
+		query, ok := q.(Q)
+		if !ok {
+			return nil, fmt.Errorf("unexpected query type %T", q)
+		}
+		return query.sqlAll(ctx)
+	})
+}
+
+func querierCount[Q interface {
+	sqlCount(context.Context) (int, error)
+}]() Querier {
+	return QuerierFunc(func(ctx context.Context, q Query) (Value, error) {
+		query, ok := q.(Q)
+		if !ok {
+			return nil, fmt.Errorf("unexpected query type %T", q)
+		}
+		return query.sqlCount(ctx)
+	})
+}
+
+func withInterceptors[V Value](ctx context.Context, q Query, qr Querier, inters []Interceptor) (v V, err error) {
+	for i := len(inters) - 1; i >= 0; i-- {
+		qr = inters[i].Intercept(qr)
+	}
+	rv, err := qr.Query(ctx, q)
+	if err != nil {
+		return v, err
+	}
+	vt, ok := rv.(V)
+	if !ok {
+		return v, fmt.Errorf("unexpected type %T returned from %T. expected type: %T", vt, q, v)
+	}
+	return vt, nil
+}
+
+func scanWithInterceptors[Q1 ent.Query, Q2 interface {
+	sqlScan(context.Context, Q1, any) error
+}](ctx context.Context, rootQuery Q1, selectOrGroup Q2, inters []Interceptor, v any) error {
+	rv := reflect.ValueOf(v)
+	var qr Querier = QuerierFunc(func(ctx context.Context, q Query) (Value, error) {
+		query, ok := q.(Q1)
+		if !ok {
+			return nil, fmt.Errorf("unexpected query type %T", q)
+		}
+		if err := selectOrGroup.sqlScan(ctx, query, v); err != nil {
+			return nil, err
+		}
+		if k := rv.Kind(); k == reflect.Pointer && rv.Elem().CanInterface() {
+			return rv.Elem().Interface(), nil
+		}
+		return v, nil
+	})
+	for i := len(inters) - 1; i >= 0; i-- {
+		qr = inters[i].Intercept(qr)
+	}
+	vv, err := qr.Query(ctx, rootQuery)
+	if err != nil {
+		return err
+	}
+	switch rv2 := reflect.ValueOf(vv); {
+	case rv.IsNil(), rv2.IsNil(), rv.Kind() != reflect.Pointer:
+	case rv.Type() == rv2.Type():
+		rv.Elem().Set(rv2.Elem())
+	case rv.Elem().Type() == rv2.Type():
+		rv.Elem().Set(rv2)
+	}
+	return nil
+}
+
+// queryHook describes an internal hook for the different sqlAll methods.
+type queryHook func(context.Context, *sqlgraph.QuerySpec)

ent/enttest/enttest.go

@@ -0,0 +1,84 @@
+// Code generated by ent, DO NOT EDIT.
+
+package enttest
+
+import (
+	"context"
+
+	"code.gurenya.net/carlsmei/muninn-aio/ent"
+	// required by schema hooks.
+	_ "code.gurenya.net/carlsmei/muninn-aio/ent/runtime"
+
+	"code.gurenya.net/carlsmei/muninn-aio/ent/migrate"
+	"entgo.io/ent/dialect/sql/schema"
+)
+
+type (
+	// TestingT is the interface that is shared between
+	// testing.T and testing.B and used by enttest.
+	TestingT interface {
+		FailNow()
+		Error(...any)
+	}
+
+	// Option configures client creation.
+	Option func(*options)
+
+	options struct {
+		opts        []ent.Option
+		migrateOpts []schema.MigrateOption
+	}
+)
+
+// WithOptions forwards options to client creation.
+func WithOptions(opts ...ent.Option) Option {
+	return func(o *options) {
+		o.opts = append(o.opts, opts...)
+	}
+}
+
+// WithMigrateOptions forwards options to auto migration.
+func WithMigrateOptions(opts ...schema.MigrateOption) Option {
+	return func(o *options) {
+		o.migrateOpts = append(o.migrateOpts, opts...)
+	}
+}
+
+func newOptions(opts []Option) *options {
+	o := &options{}
+	for _, opt := range opts {
+		opt(o)
+	}
+	return o
+}
+
+// Open calls ent.Open and auto-run migration.
+func Open(t TestingT, driverName, dataSourceName string, opts ...Option) *ent.Client {
+	o := newOptions(opts)
+	c, err := ent.Open(driverName, dataSourceName, o.opts...)
+	if err != nil {
+		t.Error(err)
+		t.FailNow()
+	}
+	migrateSchema(t, c, o)
+	return c
+}
+
+// NewClient calls ent.NewClient and auto-run migration.
+func NewClient(t TestingT, opts ...Option) *ent.Client {
+	o := newOptions(opts)
+	c := ent.NewClient(o.opts...)
+	migrateSchema(t, c, o)
+	return c
+}
+func migrateSchema(t TestingT, c *ent.Client, o *options) {
+	tables, err := schema.CopyTables(migrate.Tables)
+	if err != nil {
+		t.Error(err)
+		t.FailNow()
+	}
+	if err := migrate.Create(context.Background(), c.Schema, tables, o.migrateOpts...); err != nil {
+		t.Error(err)
+		t.FailNow()
+	}
+}

ent/generate.go

@@ -0,0 +1,3 @@
+package ent
+
+//go:generate go run -mod=mod entgo.io/ent/cmd/ent generate ./schema

ent/hook/hook.go

@@ -0,0 +1,211 @@
+// Code generated by ent, DO NOT EDIT.
+
+package hook
+
+import (
+	"context"
+	"fmt"
+
+	"code.gurenya.net/carlsmei/muninn-aio/ent"
+)
+
+// The LinkFunc type is an adapter to allow the use of ordinary
+// function as Link mutator.
+type LinkFunc func(context.Context, *ent.LinkMutation) (ent.Value, error)
+
+// Mutate calls f(ctx, m).
+func (f LinkFunc) Mutate(ctx context.Context, m ent.Mutation) (ent.Value, error) {
+	if mv, ok := m.(*ent.LinkMutation); ok {
+		return f(ctx, mv)
+	}
+	return nil, fmt.Errorf("unexpected mutation type %T. expect *ent.LinkMutation", m)
+}
+
+// The UserFunc type is an adapter to allow the use of ordinary
+// function as User mutator.
+type UserFunc func(context.Context, *ent.UserMutation) (ent.Value, error)
+
+// Mutate calls f(ctx, m).
+func (f UserFunc) Mutate(ctx context.Context, m ent.Mutation) (ent.Value, error) {
+	if mv, ok := m.(*ent.UserMutation); ok {
+		return f(ctx, mv)
+	}
+	return nil, fmt.Errorf("unexpected mutation type %T. expect *ent.UserMutation", m)
+}
+
+// Condition is a hook condition function.
+type Condition func(context.Context, ent.Mutation) bool
+
+// And groups conditions with the AND operator.
+func And(first, second Condition, rest ...Condition) Condition {
+	return func(ctx context.Context, m ent.Mutation) bool {
+		if !first(ctx, m) || !second(ctx, m) {
+			return false
+		}
+		for _, cond := range rest {
+			if !cond(ctx, m) {
+				return false
+			}
+		}
+		return true
+	}
+}
+
+// Or groups conditions with the OR operator.
+func Or(first, second Condition, rest ...Condition) Condition {
+	return func(ctx context.Context, m ent.Mutation) bool {
+		if first(ctx, m) || second(ctx, m) {
+			return true
+		}
+		for _, cond := range rest {
+			if cond(ctx, m) {
+				return true
+			}
+		}
+		return false
+	}
+}
+
+// Not negates a given condition.
+func Not(cond Condition) Condition {
+	return func(ctx context.Context, m ent.Mutation) bool {
+		return !cond(ctx, m)
+	}
+}
+
+// HasOp is a condition testing mutation operation.
+func HasOp(op ent.Op) Condition {
+	return func(_ context.Context, m ent.Mutation) bool {
+		return m.Op().Is(op)
+	}
+}
+
+// HasAddedFields is a condition validating `.AddedField` on fields.
+func HasAddedFields(field string, fields ...string) Condition {
+	return func(_ context.Context, m ent.Mutation) bool {
+		if _, exists := m.AddedField(field); !exists {
+			return false
+		}
+		for _, field := range fields {
+			if _, exists := m.AddedField(field); !exists {
+				return false
+			}
+		}
+		return true
+	}
+}
+
+// HasClearedFields is a condition validating `.FieldCleared` on fields.
+func HasClearedFields(field string, fields ...string) Condition {
+	return func(_ context.Context, m ent.Mutation) bool {
+		if exists := m.FieldCleared(field); !exists {
+			return false
+		}
+		for _, field := range fields {
+			if exists := m.FieldCleared(field); !exists {
+				return false
+			}
+		}
+		return true
+	}
+}
+
+// HasFields is a condition validating `.Field` on fields.
+func HasFields(field string, fields ...string) Condition {
+	return func(_ context.Context, m ent.Mutation) bool {
+		if _, exists := m.Field(field); !exists {
+			return false
+		}
+		for _, field := range fields {
+			if _, exists := m.Field(field); !exists {
+				return false
+			}
+		}
+		return true
+	}
+}
+
+// If executes the given hook under condition.
+//
+//	hook.If(ComputeAverage, And(HasFields(...), HasAddedFields(...)))
+func If(hk ent.Hook, cond Condition) ent.Hook {
+	return func(next ent.Mutator) ent.Mutator {
+		return ent.MutateFunc(func(ctx context.Context, m ent.Mutation) (ent.Value, error) {
+			if cond(ctx, m) {
+				return hk(next).Mutate(ctx, m)
+			}
+			return next.Mutate(ctx, m)
+		})
+	}
+}
+
+// On executes the given hook only for the given operation.
+//
+//	hook.On(Log, ent.Delete|ent.Create)
+func On(hk ent.Hook, op ent.Op) ent.Hook {
+	return If(hk, HasOp(op))
+}
+
+// Unless skips the given hook only for the given operation.
+//
+//	hook.Unless(Log, ent.Update|ent.UpdateOne)
+func Unless(hk ent.Hook, op ent.Op) ent.Hook {
+	return If(hk, Not(HasOp(op)))
+}
+
+// FixedError is a hook returning a fixed error.
+func FixedError(err error) ent.Hook {
+	return func(ent.Mutator) ent.Mutator {
+		return ent.MutateFunc(func(context.Context, ent.Mutation) (ent.Value, error) {
+			return nil, err
+		})
+	}
+}
+
+// Reject returns a hook that rejects all operations that match op.
+//
+//	func (T) Hooks() []ent.Hook {
+//		return []ent.Hook{
+//			Reject(ent.Delete|ent.Update),
+//		}
+//	}
+func Reject(op ent.Op) ent.Hook {
+	hk := FixedError(fmt.Errorf("%s operation is not allowed", op))
+	return On(hk, op)
+}
+
+// Chain acts as a list of hooks and is effectively immutable.
+// Once created, it will always hold the same set of hooks in the same order.
+type Chain struct {
+	hooks []ent.Hook
+}
+
+// NewChain creates a new chain of hooks.
+func NewChain(hooks ...ent.Hook) Chain {
+	return Chain{append([]ent.Hook(nil), hooks...)}
+}
+
+// Hook chains the list of hooks and returns the final hook.
+func (c Chain) Hook() ent.Hook {
+	return func(mutator ent.Mutator) ent.Mutator {
+		for i := len(c.hooks) - 1; i >= 0; i-- {
+			mutator = c.hooks[i](mutator)
+		}
+		return mutator
+	}
+}
+
+// Append extends a chain, adding the specified hook
+// as the last ones in the mutation flow.
+func (c Chain) Append(hooks ...ent.Hook) Chain {
+	newHooks := make([]ent.Hook, 0, len(c.hooks)+len(hooks))
+	newHooks = append(newHooks, c.hooks...)
+	newHooks = append(newHooks, hooks...)
+	return Chain{newHooks}
+}
+
+// Extend extends a chain, adding the specified chain
+// as the last ones in the mutation flow.
+func (c Chain) Extend(chain Chain) Chain {
+	return c.Append(chain.hooks...)
+}

ent/link.go

@@ -0,0 +1,141 @@
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"fmt"
+	"strings"
+
+	"code.gurenya.net/carlsmei/muninn-aio/ent/link"
+	"entgo.io/ent"
+	"entgo.io/ent/dialect/sql"
+	"github.com/google/uuid"
+)
+
+// Link is the model entity for the Link schema.
+type Link struct {
+	config `json:"-"`
+	// ID of the ent.
+	ID uuid.UUID `json:"id,omitempty"`
+	// Key holds the value of the "key" field.
+	Key string `json:"key,omitempty"`
+	// OriginalURL holds the value of the "original_url" field.
+	OriginalURL string `json:"original_url,omitempty"`
+	// Edges holds the relations/edges for other nodes in the graph.
+	// The values are being populated by the LinkQuery when eager-loading is set.
+	Edges        LinkEdges `json:"edges"`
+	selectValues sql.SelectValues
+}
+
+// LinkEdges holds the relations/edges for other nodes in the graph.
+type LinkEdges struct {
+	// Owner holds the value of the owner edge.
+	Owner []*User `json:"owner,omitempty"`
+	// loadedTypes holds the information for reporting if a
+	// type was loaded (or requested) in eager-loading or not.
+	loadedTypes [1]bool
+}
+
+// OwnerOrErr returns the Owner value or an error if the edge
+// was not loaded in eager-loading.
+func (e LinkEdges) OwnerOrErr() ([]*User, error) {
+	if e.loadedTypes[0] {
+		return e.Owner, nil
+	}
+	return nil, &NotLoadedError{edge: "owner"}
+}
+
+// scanValues returns the types for scanning values from sql.Rows.
+func (*Link) scanValues(columns []string) ([]any, error) {
+	values := make([]any, len(columns))
+	for i := range columns {
+		switch columns[i] {
+		case link.FieldKey, link.FieldOriginalURL:
+			values[i] = new(sql.NullString)
+		case link.FieldID:
+			values[i] = new(uuid.UUID)
+		default:
+			values[i] = new(sql.UnknownType)
+		}
+	}
+	return values, nil
+}
+
+// assignValues assigns the values that were returned from sql.Rows (after scanning)
+// to the Link fields.
+func (l *Link) assignValues(columns []string, values []any) error {
+	if m, n := len(values), len(columns); m < n {
+		return fmt.Errorf("mismatch number of scan values: %d != %d", m, n)
+	}
+	for i := range columns {
+		switch columns[i] {
+		case link.FieldID:
+			if value, ok := values[i].(*uuid.UUID); !ok {
+				return fmt.Errorf("unexpected type %T for field id", values[i])
+			} else if value != nil {
+				l.ID = *value
+			}
+		case link.FieldKey:
+			if value, ok := values[i].(*sql.NullString); !ok {
+				return fmt.Errorf("unexpected type %T for field key", values[i])
+			} else if value.Valid {
+				l.Key = value.String
+			}
+		case link.FieldOriginalURL:
+			if value, ok := values[i].(*sql.NullString); !ok {
+				return fmt.Errorf("unexpected type %T for field original_url", values[i])
+			} else if value.Valid {
+				l.OriginalURL = value.String
+			}
+		default:
+			l.selectValues.Set(columns[i], values[i])
+		}
+	}
+	return nil
+}
+
+// Value returns the ent.Value that was dynamically selected and assigned to the Link.
+// This includes values selected through modifiers, order, etc.
+func (l *Link) Value(name string) (ent.Value, error) {
+	return l.selectValues.Get(name)
+}
+
+// QueryOwner queries the "owner" edge of the Link entity.
+func (l *Link) QueryOwner() *UserQuery {
+	return NewLinkClient(l.config).QueryOwner(l)
+}
+
+// Update returns a builder for updating this Link.
+// Note that you need to call Link.Unwrap() before calling this method if this Link
+// was returned from a transaction, and the transaction was committed or rolled back.
+func (l *Link) Update() *LinkUpdateOne {
+	return NewLinkClient(l.config).UpdateOne(l)
+}
+
+// Unwrap unwraps the Link entity that was returned from a transaction after it was closed,
+// so that all future queries will be executed through the driver which created the transaction.
+func (l *Link) Unwrap() *Link {
+	_tx, ok := l.config.driver.(*txDriver)
+	if !ok {
+		panic("ent: Link is not a transactional entity")
+	}
+	l.config.driver = _tx.drv
+	return l
+}
+
+// String implements the fmt.Stringer.
+func (l *Link) String() string {
+	var builder strings.Builder
+	builder.WriteString("Link(")
+	builder.WriteString(fmt.Sprintf("id=%v, ", l.ID))
+	builder.WriteString("key=")
+	builder.WriteString(l.Key)
+	builder.WriteString(", ")
+	builder.WriteString("original_url=")
+	builder.WriteString(l.OriginalURL)
+	builder.WriteByte(')')
+	return builder.String()
+}
+
+// Links is a parsable slice of Link.
+type Links []*Link

ent/link/link.go

@@ -0,0 +1,98 @@
+// Code generated by ent, DO NOT EDIT.
+
+package link
+
+import (
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"github.com/google/uuid"
+)
+
+const (
+	// Label holds the string label denoting the link type in the database.
+	Label = "link"
+	// FieldID holds the string denoting the id field in the database.
+	FieldID = "id"
+	// FieldKey holds the string denoting the key field in the database.
+	FieldKey = "key"
+	// FieldOriginalURL holds the string denoting the original_url field in the database.
+	FieldOriginalURL = "original_url"
+	// EdgeOwner holds the string denoting the owner edge name in mutations.
+	EdgeOwner = "owner"
+	// Table holds the table name of the link in the database.
+	Table = "links"
+	// OwnerTable is the table that holds the owner relation/edge. The primary key declared below.
+	OwnerTable = "user_links"
+	// OwnerInverseTable is the table name for the User entity.
+	// It exists in this package in order to avoid circular dependency with the "user" package.
+	OwnerInverseTable = "users"
+)
+
+// Columns holds all SQL columns for link fields.
+var Columns = []string{
+	FieldID,
+	FieldKey,
+	FieldOriginalURL,
+}
+
+var (
+	// OwnerPrimaryKey and OwnerColumn2 are the table columns denoting the
+	// primary key for the owner relation (M2M).
+	OwnerPrimaryKey = []string{"user_id", "link_id"}
+)
+
+// ValidColumn reports if the column name is valid (part of the table columns).
+func ValidColumn(column string) bool {
+	for i := range Columns {
+		if column == Columns[i] {
+			return true
+		}
+	}
+	return false
+}
+
+var (
+	// OriginalURLValidator is a validator for the "original_url" field. It is called by the builders before save.
+	OriginalURLValidator func(string) error
+	// DefaultID holds the default value on creation for the "id" field.
+	DefaultID func() uuid.UUID
+)
+
+// OrderOption defines the ordering options for the Link queries.
+type OrderOption func(*sql.Selector)
+
+// ByID orders the results by the id field.
+func ByID(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldID, opts...).ToFunc()
+}
+
+// ByKey orders the results by the key field.
+func ByKey(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldKey, opts...).ToFunc()
+}
+
+// ByOriginalURL orders the results by the original_url field.
+func ByOriginalURL(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldOriginalURL, opts...).ToFunc()
+}
+
+// ByOwnerCount orders the results by owner count.
+func ByOwnerCount(opts ...sql.OrderTermOption) OrderOption {
+	return func(s *sql.Selector) {
+		sqlgraph.OrderByNeighborsCount(s, newOwnerStep(), opts...)
+	}
+}
+
+// ByOwner orders the results by owner terms.
+func ByOwner(term sql.OrderTerm, terms ...sql.OrderTerm) OrderOption {
+	return func(s *sql.Selector) {
+		sqlgraph.OrderByNeighborTerms(s, newOwnerStep(), append([]sql.OrderTerm{term}, terms...)...)
+	}
+}
+func newOwnerStep() *sqlgraph.Step {
+	return sqlgraph.NewStep(
+		sqlgraph.From(Table, FieldID),
+		sqlgraph.To(OwnerInverseTable, FieldID),
+		sqlgraph.Edge(sqlgraph.M2M, true, OwnerTable, OwnerPrimaryKey...),
+	)
+}

ent/link/where.go

@@ -0,0 +1,233 @@
+// Code generated by ent, DO NOT EDIT.
+
+package link
+
+import (
+	"code.gurenya.net/carlsmei/muninn-aio/ent/predicate"
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"github.com/google/uuid"
+)
+
+// ID filters vertices based on their ID field.
+func ID(id uuid.UUID) predicate.Link {
+	return predicate.Link(sql.FieldEQ(FieldID, id))
+}
+
+// IDEQ applies the EQ predicate on the ID field.
+func IDEQ(id uuid.UUID) predicate.Link {
+	return predicate.Link(sql.FieldEQ(FieldID, id))
+}
+
+// IDNEQ applies the NEQ predicate on the ID field.
+func IDNEQ(id uuid.UUID) predicate.Link {
+	return predicate.Link(sql.FieldNEQ(FieldID, id))
+}
+
+// IDIn applies the In predicate on the ID field.
+func IDIn(ids ...uuid.UUID) predicate.Link {
+	return predicate.Link(sql.FieldIn(FieldID, ids...))
+}
+
+// IDNotIn applies the NotIn predicate on the ID field.
+func IDNotIn(ids ...uuid.UUID) predicate.Link {
+	return predicate.Link(sql.FieldNotIn(FieldID, ids...))
+}
+
+// IDGT applies the GT predicate on the ID field.
+func IDGT(id uuid.UUID) predicate.Link {
+	return predicate.Link(sql.FieldGT(FieldID, id))
+}
+
+// IDGTE applies the GTE predicate on the ID field.
+func IDGTE(id uuid.UUID) predicate.Link {
+	return predicate.Link(sql.FieldGTE(FieldID, id))
+}
+
+// IDLT applies the LT predicate on the ID field.
+func IDLT(id uuid.UUID) predicate.Link {
+	return predicate.Link(sql.FieldLT(FieldID, id))
+}
+
+// IDLTE applies the LTE predicate on the ID field.
+func IDLTE(id uuid.UUID) predicate.Link {
+	return predicate.Link(sql.FieldLTE(FieldID, id))
+}
+
+// Key applies equality check predicate on the "key" field. It's identical to KeyEQ.
+func Key(v string) predicate.Link {
+	return predicate.Link(sql.FieldEQ(FieldKey, v))
+}
+
+// OriginalURL applies equality check predicate on the "original_url" field. It's identical to OriginalURLEQ.
+func OriginalURL(v string) predicate.Link {
+	return predicate.Link(sql.FieldEQ(FieldOriginalURL, v))
+}
+
+// KeyEQ applies the EQ predicate on the "key" field.
+func KeyEQ(v string) predicate.Link {
+	return predicate.Link(sql.FieldEQ(FieldKey, v))
+}
+
+// KeyNEQ applies the NEQ predicate on the "key" field.
+func KeyNEQ(v string) predicate.Link {
+	return predicate.Link(sql.FieldNEQ(FieldKey, v))
+}
+
+// KeyIn applies the In predicate on the "key" field.
+func KeyIn(vs ...string) predicate.Link {
+	return predicate.Link(sql.FieldIn(FieldKey, vs...))
+}
+
+// KeyNotIn applies the NotIn predicate on the "key" field.
+func KeyNotIn(vs ...string) predicate.Link {
+	return predicate.Link(sql.FieldNotIn(FieldKey, vs...))
+}
+
+// KeyGT applies the GT predicate on the "key" field.
+func KeyGT(v string) predicate.Link {
+	return predicate.Link(sql.FieldGT(FieldKey, v))
+}
+
+// KeyGTE applies the GTE predicate on the "key" field.
+func KeyGTE(v string) predicate.Link {
+	return predicate.Link(sql.FieldGTE(FieldKey, v))
+}
+
+// KeyLT applies the LT predicate on the "key" field.
+func KeyLT(v string) predicate.Link {
+	return predicate.Link(sql.FieldLT(FieldKey, v))
+}
+
+// KeyLTE applies the LTE predicate on the "key" field.
+func KeyLTE(v string) predicate.Link {
+	return predicate.Link(sql.FieldLTE(FieldKey, v))
+}
+
+// KeyContains applies the Contains predicate on the "key" field.
+func KeyContains(v string) predicate.Link {
+	return predicate.Link(sql.FieldContains(FieldKey, v))
+}
+
+// KeyHasPrefix applies the HasPrefix predicate on the "key" field.
+func KeyHasPrefix(v string) predicate.Link {
+	return predicate.Link(sql.FieldHasPrefix(FieldKey, v))
+}
+
+// KeyHasSuffix applies the HasSuffix predicate on the "key" field.
+func KeyHasSuffix(v string) predicate.Link {
+	return predicate.Link(sql.FieldHasSuffix(FieldKey, v))
+}
+
+// KeyEqualFold applies the EqualFold predicate on the "key" field.
+func KeyEqualFold(v string) predicate.Link {
+	return predicate.Link(sql.FieldEqualFold(FieldKey, v))
+}
+
+// KeyContainsFold applies the ContainsFold predicate on the "key" field.
+func KeyContainsFold(v string) predicate.Link {
+	return predicate.Link(sql.FieldContainsFold(FieldKey, v))
+}
+
+// OriginalURLEQ applies the EQ predicate on the "original_url" field.
+func OriginalURLEQ(v string) predicate.Link {
+	return predicate.Link(sql.FieldEQ(FieldOriginalURL, v))
+}
+
+// OriginalURLNEQ applies the NEQ predicate on the "original_url" field.
+func OriginalURLNEQ(v string) predicate.Link {
+	return predicate.Link(sql.FieldNEQ(FieldOriginalURL, v))
+}
+
+// OriginalURLIn applies the In predicate on the "original_url" field.
+func OriginalURLIn(vs ...string) predicate.Link {
+	return predicate.Link(sql.FieldIn(FieldOriginalURL, vs...))
+}
+
+// OriginalURLNotIn applies the NotIn predicate on the "original_url" field.
+func OriginalURLNotIn(vs ...string) predicate.Link {
+	return predicate.Link(sql.FieldNotIn(FieldOriginalURL, vs...))
+}
+
+// OriginalURLGT applies the GT predicate on the "original_url" field.
+func OriginalURLGT(v string) predicate.Link {
+	return predicate.Link(sql.FieldGT(FieldOriginalURL, v))
+}
+
+// OriginalURLGTE applies the GTE predicate on the "original_url" field.
+func OriginalURLGTE(v string) predicate.Link {
+	return predicate.Link(sql.FieldGTE(FieldOriginalURL, v))
+}
+
+// OriginalURLLT applies the LT predicate on the "original_url" field.
+func OriginalURLLT(v string) predicate.Link {
+	return predicate.Link(sql.FieldLT(FieldOriginalURL, v))
+}
+
+// OriginalURLLTE applies the LTE predicate on the "original_url" field.
+func OriginalURLLTE(v string) predicate.Link {
+	return predicate.Link(sql.FieldLTE(FieldOriginalURL, v))
+}
+
+// OriginalURLContains applies the Contains predicate on the "original_url" field.
+func OriginalURLContains(v string) predicate.Link {
+	return predicate.Link(sql.FieldContains(FieldOriginalURL, v))
+}
+
+// OriginalURLHasPrefix applies the HasPrefix predicate on the "original_url" field.
+func OriginalURLHasPrefix(v string) predicate.Link {
+	return predicate.Link(sql.FieldHasPrefix(FieldOriginalURL, v))
+}
+
+// OriginalURLHasSuffix applies the HasSuffix predicate on the "original_url" field.
+func OriginalURLHasSuffix(v string) predicate.Link {
+	return predicate.Link(sql.FieldHasSuffix(FieldOriginalURL, v))
+}
+
+// OriginalURLEqualFold applies the EqualFold predicate on the "original_url" field.
+func OriginalURLEqualFold(v string) predicate.Link {
+	return predicate.Link(sql.FieldEqualFold(FieldOriginalURL, v))
+}
+
+// OriginalURLContainsFold applies the ContainsFold predicate on the "original_url" field.
+func OriginalURLContainsFold(v string) predicate.Link {
+	return predicate.Link(sql.FieldContainsFold(FieldOriginalURL, v))
+}
+
+// HasOwner applies the HasEdge predicate on the "owner" edge.
+func HasOwner() predicate.Link {
+	return predicate.Link(func(s *sql.Selector) {
+		step := sqlgraph.NewStep(
+			sqlgraph.From(Table, FieldID),
+			sqlgraph.Edge(sqlgraph.M2M, true, OwnerTable, OwnerPrimaryKey...),
+		)
+		sqlgraph.HasNeighbors(s, step)
+	})
+}
+
+// HasOwnerWith applies the HasEdge predicate on the "owner" edge with a given conditions (other predicates).
+func HasOwnerWith(preds ...predicate.User) predicate.Link {
+	return predicate.Link(func(s *sql.Selector) {
+		step := newOwnerStep()
+		sqlgraph.HasNeighborsWith(s, step, func(s *sql.Selector) {
+			for _, p := range preds {
+				p(s)
+			}
+		})
+	})
+}
+
+// And groups predicates with the AND operator between them.
+func And(predicates ...predicate.Link) predicate.Link {
+	return predicate.Link(sql.AndPredicates(predicates...))
+}
+
+// Or groups predicates with the OR operator between them.
+func Or(predicates ...predicate.Link) predicate.Link {
+	return predicate.Link(sql.OrPredicates(predicates...))
+}
+
+// Not applies the not operator on the given predicate.
+func Not(p predicate.Link) predicate.Link {
+	return predicate.Link(sql.NotPredicates(p))
+}

ent/link_create.go

@@ -0,0 +1,266 @@
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+	"errors"
+	"fmt"
+
+	"code.gurenya.net/carlsmei/muninn-aio/ent/link"
+	"code.gurenya.net/carlsmei/muninn-aio/ent/user"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"entgo.io/ent/schema/field"
+	"github.com/google/uuid"
+)
+
+// LinkCreate is the builder for creating a Link entity.
+type LinkCreate struct {
+	config
+	mutation *LinkMutation
+	hooks    []Hook
+}
+
+// SetKey sets the "key" field.
+func (lc *LinkCreate) SetKey(s string) *LinkCreate {
+	lc.mutation.SetKey(s)
+	return lc
+}
+
+// SetOriginalURL sets the "original_url" field.
+func (lc *LinkCreate) SetOriginalURL(s string) *LinkCreate {
+	lc.mutation.SetOriginalURL(s)
+	return lc
+}
+
+// SetID sets the "id" field.
+func (lc *LinkCreate) SetID(u uuid.UUID) *LinkCreate {
+	lc.mutation.SetID(u)
+	return lc
+}
+
+// SetNillableID sets the "id" field if the given value is not nil.
+func (lc *LinkCreate) SetNillableID(u *uuid.UUID) *LinkCreate {
+	if u != nil {
+		lc.SetID(*u)
+	}
+	return lc
+}
+
+// AddOwnerIDs adds the "owner" edge to the User entity by IDs.
+func (lc *LinkCreate) AddOwnerIDs(ids ...uuid.UUID) *LinkCreate {
+	lc.mutation.AddOwnerIDs(ids...)
+	return lc
+}
+
+// AddOwner adds the "owner" edges to the User entity.
+func (lc *LinkCreate) AddOwner(u ...*User) *LinkCreate {
+	ids := make([]uuid.UUID, len(u))
+	for i := range u {
+		ids[i] = u[i].ID
+	}
+	return lc.AddOwnerIDs(ids...)
+}
+
+// Mutation returns the LinkMutation object of the builder.
+func (lc *LinkCreate) Mutation() *LinkMutation {
+	return lc.mutation
+}
+
+// Save creates the Link in the database.
+func (lc *LinkCreate) Save(ctx context.Context) (*Link, error) {
+	lc.defaults()
+	return withHooks(ctx, lc.sqlSave, lc.mutation, lc.hooks)
+}
+
+// SaveX calls Save and panics if Save returns an error.
+func (lc *LinkCreate) SaveX(ctx context.Context) *Link {
+	v, err := lc.Save(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+// Exec executes the query.
+func (lc *LinkCreate) Exec(ctx context.Context) error {
+	_, err := lc.Save(ctx)
+	return err
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (lc *LinkCreate) ExecX(ctx context.Context) {
+	if err := lc.Exec(ctx); err != nil {
+		panic(err)
+	}
+}
+
+// defaults sets the default values of the builder before save.
+func (lc *LinkCreate) defaults() {
+	if _, ok := lc.mutation.ID(); !ok {
+		v := link.DefaultID()
+		lc.mutation.SetID(v)
+	}
+}
+
+// check runs all checks and user-defined validators on the builder.
+func (lc *LinkCreate) check() error {
+	if _, ok := lc.mutation.Key(); !ok {
+		return &ValidationError{Name: "key", err: errors.New(`ent: missing required field "Link.key"`)}
+	}
+	if _, ok := lc.mutation.OriginalURL(); !ok {
+		return &ValidationError{Name: "original_url", err: errors.New(`ent: missing required field "Link.original_url"`)}
+	}
+	if v, ok := lc.mutation.OriginalURL(); ok {
+		if err := link.OriginalURLValidator(v); err != nil {
+			return &ValidationError{Name: "original_url", err: fmt.Errorf(`ent: validator failed for field "Link.original_url": %w`, err)}
+		}
+	}
+	if len(lc.mutation.OwnerIDs()) == 0 {
+		return &ValidationError{Name: "owner", err: errors.New(`ent: missing required edge "Link.owner"`)}
+	}
+	return nil
+}
+
+func (lc *LinkCreate) sqlSave(ctx context.Context) (*Link, error) {
+	if err := lc.check(); err != nil {
+		return nil, err
+	}
+	_node, _spec := lc.createSpec()
+	if err := sqlgraph.CreateNode(ctx, lc.driver, _spec); err != nil {
+		if sqlgraph.IsConstraintError(err) {
+			err = &ConstraintError{msg: err.Error(), wrap: err}
+		}
+		return nil, err
+	}
+	if _spec.ID.Value != nil {
+		if id, ok := _spec.ID.Value.(*uuid.UUID); ok {
+			_node.ID = *id
+		} else if err := _node.ID.Scan(_spec.ID.Value); err != nil {
+			return nil, err
+		}
+	}
+	lc.mutation.id = &_node.ID
+	lc.mutation.done = true
+	return _node, nil
+}
+
+func (lc *LinkCreate) createSpec() (*Link, *sqlgraph.CreateSpec) {
+	var (
+		_node = &Link{config: lc.config}
+		_spec = sqlgraph.NewCreateSpec(link.Table, sqlgraph.NewFieldSpec(link.FieldID, field.TypeUUID))
+	)
+	if id, ok := lc.mutation.ID(); ok {
+		_node.ID = id
+		_spec.ID.Value = &id
+	}
+	if value, ok := lc.mutation.Key(); ok {
+		_spec.SetField(link.FieldKey, field.TypeString, value)
+		_node.Key = value
+	}
+	if value, ok := lc.mutation.OriginalURL(); ok {
+		_spec.SetField(link.FieldOriginalURL, field.TypeString, value)
+		_node.OriginalURL = value
+	}
+	if nodes := lc.mutation.OwnerIDs(); len(nodes) > 0 {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.M2M,
+			Inverse: true,
+			Table:   link.OwnerTable,
+			Columns: link.OwnerPrimaryKey,
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(user.FieldID, field.TypeUUID),
+			},
+		}
+		for _, k := range nodes {
+			edge.Target.Nodes = append(edge.Target.Nodes, k)
+		}
+		_spec.Edges = append(_spec.Edges, edge)
+	}
+	return _node, _spec
+}
+
+// LinkCreateBulk is the builder for creating many Link entities in bulk.
+type LinkCreateBulk struct {
+	config
+	err      error
+	builders []*LinkCreate
+}
+
+// Save creates the Link entities in the database.
+func (lcb *LinkCreateBulk) Save(ctx context.Context) ([]*Link, error) {
+	if lcb.err != nil {
+		return nil, lcb.err
+	}
+	specs := make([]*sqlgraph.CreateSpec, len(lcb.builders))
+	nodes := make([]*Link, len(lcb.builders))
+	mutators := make([]Mutator, len(lcb.builders))
+	for i := range lcb.builders {
+		func(i int, root context.Context) {
+			builder := lcb.builders[i]
+			builder.defaults()
+			var mut Mutator = MutateFunc(func(ctx context.Context, m Mutation) (Value, error) {
+				mutation, ok := m.(*LinkMutation)
+				if !ok {
+					return nil, fmt.Errorf("unexpected mutation type %T", m)
+				}
+				if err := builder.check(); err != nil {
+					return nil, err
+				}
+				builder.mutation = mutation
+				var err error
+				nodes[i], specs[i] = builder.createSpec()
+				if i < len(mutators)-1 {
+					_, err = mutators[i+1].Mutate(root, lcb.builders[i+1].mutation)
+				} else {
+					spec := &sqlgraph.BatchCreateSpec{Nodes: specs}
+					// Invoke the actual operation on the latest mutation in the chain.
+					if err = sqlgraph.BatchCreate(ctx, lcb.driver, spec); err != nil {
+						if sqlgraph.IsConstraintError(err) {
+							err = &ConstraintError{msg: err.Error(), wrap: err}
+						}
+					}
+				}
+				if err != nil {
+					return nil, err
+				}
+				mutation.id = &nodes[i].ID
+				mutation.done = true
+				return nodes[i], nil
+			})
+			for i := len(builder.hooks) - 1; i >= 0; i-- {
+				mut = builder.hooks[i](mut)
+			}
+			mutators[i] = mut
+		}(i, ctx)
+	}
+	if len(mutators) > 0 {
+		if _, err := mutators[0].Mutate(ctx, lcb.builders[0].mutation); err != nil {
+			return nil, err
+		}
+	}
+	return nodes, nil
+}
+
+// SaveX is like Save, but panics if an error occurs.
+func (lcb *LinkCreateBulk) SaveX(ctx context.Context) []*Link {
+	v, err := lcb.Save(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+// Exec executes the query.
+func (lcb *LinkCreateBulk) Exec(ctx context.Context) error {
+	_, err := lcb.Save(ctx)
+	return err
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (lcb *LinkCreateBulk) ExecX(ctx context.Context) {
+	if err := lcb.Exec(ctx); err != nil {
+		panic(err)
+	}
+}

ent/link_delete.go

@@ -0,0 +1,88 @@
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+
+	"code.gurenya.net/carlsmei/muninn-aio/ent/link"
+	"code.gurenya.net/carlsmei/muninn-aio/ent/predicate"
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"entgo.io/ent/schema/field"
+)
+
+// LinkDelete is the builder for deleting a Link entity.
+type LinkDelete struct {
+	config
+	hooks    []Hook
+	mutation *LinkMutation
+}
+
+// Where appends a list predicates to the LinkDelete builder.
+func (ld *LinkDelete) Where(ps ...predicate.Link) *LinkDelete {
+	ld.mutation.Where(ps...)
+	return ld
+}
+
+// Exec executes the deletion query and returns how many vertices were deleted.
+func (ld *LinkDelete) Exec(ctx context.Context) (int, error) {
+	return withHooks(ctx, ld.sqlExec, ld.mutation, ld.hooks)
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (ld *LinkDelete) ExecX(ctx context.Context) int {
+	n, err := ld.Exec(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return n
+}
+
+func (ld *LinkDelete) sqlExec(ctx context.Context) (int, error) {
+	_spec := sqlgraph.NewDeleteSpec(link.Table, sqlgraph.NewFieldSpec(link.FieldID, field.TypeUUID))
+	if ps := ld.mutation.predicates; len(ps) > 0 {
+		_spec.Predicate = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	affected, err := sqlgraph.DeleteNodes(ctx, ld.driver, _spec)
+	if err != nil && sqlgraph.IsConstraintError(err) {
+		err = &ConstraintError{msg: err.Error(), wrap: err}
+	}
+	ld.mutation.done = true
+	return affected, err
+}
+
+// LinkDeleteOne is the builder for deleting a single Link entity.
+type LinkDeleteOne struct {
+	ld *LinkDelete
+}
+
+// Where appends a list predicates to the LinkDelete builder.
+func (ldo *LinkDeleteOne) Where(ps ...predicate.Link) *LinkDeleteOne {
+	ldo.ld.mutation.Where(ps...)
+	return ldo
+}
+
+// Exec executes the deletion query.
+func (ldo *LinkDeleteOne) Exec(ctx context.Context) error {
+	n, err := ldo.ld.Exec(ctx)
+	switch {
+	case err != nil:
+		return err
+	case n == 0:
+		return &NotFoundError{link.Label}
+	default:
+		return nil
+	}
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (ldo *LinkDeleteOne) ExecX(ctx context.Context) {
+	if err := ldo.Exec(ctx); err != nil {
+		panic(err)
+	}
+}

ent/link_query.go

@@ -0,0 +1,638 @@
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+	"database/sql/driver"
+	"fmt"
+	"math"
+
+	"code.gurenya.net/carlsmei/muninn-aio/ent/link"
+	"code.gurenya.net/carlsmei/muninn-aio/ent/predicate"
+	"code.gurenya.net/carlsmei/muninn-aio/ent/user"
+	"entgo.io/ent"
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"entgo.io/ent/schema/field"
+	"github.com/google/uuid"
+)
+
+// LinkQuery is the builder for querying Link entities.
+type LinkQuery struct {
+	config
+	ctx        *QueryContext
+	order      []link.OrderOption
+	inters     []Interceptor
+	predicates []predicate.Link
+	withOwner  *UserQuery
+	// intermediate query (i.e. traversal path).
+	sql  *sql.Selector
+	path func(context.Context) (*sql.Selector, error)
+}
+
+// Where adds a new predicate for the LinkQuery builder.
+func (lq *LinkQuery) Where(ps ...predicate.Link) *LinkQuery {
+	lq.predicates = append(lq.predicates, ps...)
+	return lq
+}
+
+// Limit the number of records to be returned by this query.
+func (lq *LinkQuery) Limit(limit int) *LinkQuery {
+	lq.ctx.Limit = &limit
+	return lq
+}
+
+// Offset to start from.
+func (lq *LinkQuery) Offset(offset int) *LinkQuery {
+	lq.ctx.Offset = &offset
+	return lq
+}
+
+// Unique configures the query builder to filter duplicate records on query.
+// By default, unique is set to true, and can be disabled using this method.
+func (lq *LinkQuery) Unique(unique bool) *LinkQuery {
+	lq.ctx.Unique = &unique
+	return lq
+}
+
+// Order specifies how the records should be ordered.
+func (lq *LinkQuery) Order(o ...link.OrderOption) *LinkQuery {
+	lq.order = append(lq.order, o...)
+	return lq
+}
+
+// QueryOwner chains the current query on the "owner" edge.
+func (lq *LinkQuery) QueryOwner() *UserQuery {
+	query := (&UserClient{config: lq.config}).Query()
+	query.path = func(ctx context.Context) (fromU *sql.Selector, err error) {
+		if err := lq.prepareQuery(ctx); err != nil {
+			return nil, err
+		}
+		selector := lq.sqlQuery(ctx)
+		if err := selector.Err(); err != nil {
+			return nil, err
+		}
+		step := sqlgraph.NewStep(
+			sqlgraph.From(link.Table, link.FieldID, selector),
+			sqlgraph.To(user.Table, user.FieldID),
+			sqlgraph.Edge(sqlgraph.M2M, true, link.OwnerTable, link.OwnerPrimaryKey...),
+		)
+		fromU = sqlgraph.SetNeighbors(lq.driver.Dialect(), step)
+		return fromU, nil
+	}
+	return query
+}
+
+// First returns the first Link entity from the query.
+// Returns a *NotFoundError when no Link was found.
+func (lq *LinkQuery) First(ctx context.Context) (*Link, error) {
+	nodes, err := lq.Limit(1).All(setContextOp(ctx, lq.ctx, ent.OpQueryFirst))
+	if err != nil {
+		return nil, err
+	}
+	if len(nodes) == 0 {
+		return nil, &NotFoundError{link.Label}
+	}
+	return nodes[0], nil
+}
+
+// FirstX is like First, but panics if an error occurs.
+func (lq *LinkQuery) FirstX(ctx context.Context) *Link {
+	node, err := lq.First(ctx)
+	if err != nil && !IsNotFound(err) {
+		panic(err)
+	}
+	return node
+}
+
+// FirstID returns the first Link ID from the query.
+// Returns a *NotFoundError when no Link ID was found.
+func (lq *LinkQuery) FirstID(ctx context.Context) (id uuid.UUID, err error) {
+	var ids []uuid.UUID
+	if ids, err = lq.Limit(1).IDs(setContextOp(ctx, lq.ctx, ent.OpQueryFirstID)); err != nil {
+		return
+	}
+	if len(ids) == 0 {
+		err = &NotFoundError{link.Label}
+		return
+	}
+	return ids[0], nil
+}
+
+// FirstIDX is like FirstID, but panics if an error occurs.
+func (lq *LinkQuery) FirstIDX(ctx context.Context) uuid.UUID {
+	id, err := lq.FirstID(ctx)
+	if err != nil && !IsNotFound(err) {
+		panic(err)
+	}
+	return id
+}
+
+// Only returns a single Link entity found by the query, ensuring it only returns one.
+// Returns a *NotSingularError when more than one Link entity is found.
+// Returns a *NotFoundError when no Link entities are found.
+func (lq *LinkQuery) Only(ctx context.Context) (*Link, error) {
+	nodes, err := lq.Limit(2).All(setContextOp(ctx, lq.ctx, ent.OpQueryOnly))
+	if err != nil {
+		return nil, err
+	}
+	switch len(nodes) {
+	case 1:
+		return nodes[0], nil
+	case 0:
+		return nil, &NotFoundError{link.Label}
+	default:
+		return nil, &NotSingularError{link.Label}
+	}
+}
+
+// OnlyX is like Only, but panics if an error occurs.
+func (lq *LinkQuery) OnlyX(ctx context.Context) *Link {
+	node, err := lq.Only(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return node
+}
+
+// OnlyID is like Only, but returns the only Link ID in the query.
+// Returns a *NotSingularError when more than one Link ID is found.
+// Returns a *NotFoundError when no entities are found.
+func (lq *LinkQuery) OnlyID(ctx context.Context) (id uuid.UUID, err error) {
+	var ids []uuid.UUID
+	if ids, err = lq.Limit(2).IDs(setContextOp(ctx, lq.ctx, ent.OpQueryOnlyID)); err != nil {
+		return
+	}
+	switch len(ids) {
+	case 1:
+		id = ids[0]
+	case 0:
+		err = &NotFoundError{link.Label}
+	default:
+		err = &NotSingularError{link.Label}
+	}
+	return
+}
+
+// OnlyIDX is like OnlyID, but panics if an error occurs.
+func (lq *LinkQuery) OnlyIDX(ctx context.Context) uuid.UUID {
+	id, err := lq.OnlyID(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return id
+}
+
+// All executes the query and returns a list of Links.
+func (lq *LinkQuery) All(ctx context.Context) ([]*Link, error) {
+	ctx = setContextOp(ctx, lq.ctx, ent.OpQueryAll)
+	if err := lq.prepareQuery(ctx); err != nil {
+		return nil, err
+	}
+	qr := querierAll[[]*Link, *LinkQuery]()
+	return withInterceptors[[]*Link](ctx, lq, qr, lq.inters)
+}
+
+// AllX is like All, but panics if an error occurs.
+func (lq *LinkQuery) AllX(ctx context.Context) []*Link {
+	nodes, err := lq.All(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return nodes
+}
+
+// IDs executes the query and returns a list of Link IDs.
+func (lq *LinkQuery) IDs(ctx context.Context) (ids []uuid.UUID, err error) {
+	if lq.ctx.Unique == nil && lq.path != nil {
+		lq.Unique(true)
+	}
+	ctx = setContextOp(ctx, lq.ctx, ent.OpQueryIDs)
+	if err = lq.Select(link.FieldID).Scan(ctx, &ids); err != nil {
+		return nil, err
+	}
+	return ids, nil
+}
+
+// IDsX is like IDs, but panics if an error occurs.
+func (lq *LinkQuery) IDsX(ctx context.Context) []uuid.UUID {
+	ids, err := lq.IDs(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return ids
+}
+
+// Count returns the count of the given query.
+func (lq *LinkQuery) Count(ctx context.Context) (int, error) {
+	ctx = setContextOp(ctx, lq.ctx, ent.OpQueryCount)
+	if err := lq.prepareQuery(ctx); err != nil {
+		return 0, err
+	}
+	return withInterceptors[int](ctx, lq, querierCount[*LinkQuery](), lq.inters)
+}
+
+// CountX is like Count, but panics if an error occurs.
+func (lq *LinkQuery) CountX(ctx context.Context) int {
+	count, err := lq.Count(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return count
+}
+
+// Exist returns true if the query has elements in the graph.
+func (lq *LinkQuery) Exist(ctx context.Context) (bool, error) {
+	ctx = setContextOp(ctx, lq.ctx, ent.OpQueryExist)
+	switch _, err := lq.FirstID(ctx); {
+	case IsNotFound(err):
+		return false, nil
+	case err != nil:
+		return false, fmt.Errorf("ent: check existence: %w", err)
+	default:
+		return true, nil
+	}
+}
+
+// ExistX is like Exist, but panics if an error occurs.
+func (lq *LinkQuery) ExistX(ctx context.Context) bool {
+	exist, err := lq.Exist(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return exist
+}
+
+// Clone returns a duplicate of the LinkQuery builder, including all associated steps. It can be
+// used to prepare common query builders and use them differently after the clone is made.
+func (lq *LinkQuery) Clone() *LinkQuery {
+	if lq == nil {
+		return nil
+	}
+	return &LinkQuery{
+		config:     lq.config,
+		ctx:        lq.ctx.Clone(),
+		order:      append([]link.OrderOption{}, lq.order...),
+		inters:     append([]Interceptor{}, lq.inters...),
+		predicates: append([]predicate.Link{}, lq.predicates...),
+		withOwner:  lq.withOwner.Clone(),
+		// clone intermediate query.
+		sql:  lq.sql.Clone(),
+		path: lq.path,
+	}
+}
+
+// WithOwner tells the query-builder to eager-load the nodes that are connected to
+// the "owner" edge. The optional arguments are used to configure the query builder of the edge.
+func (lq *LinkQuery) WithOwner(opts ...func(*UserQuery)) *LinkQuery {
+	query := (&UserClient{config: lq.config}).Query()
+	for _, opt := range opts {
+		opt(query)
+	}
+	lq.withOwner = query
+	return lq
+}
+
+// GroupBy is used to group vertices by one or more fields/columns.
+// It is often used with aggregate functions, like: count, max, mean, min, sum.
+//
+// Example:
+//
+//	var v []struct {
+//		Key string `json:"key,omitempty"`
+//		Count int `json:"count,omitempty"`
+//	}
+//
+//	client.Link.Query().
+//		GroupBy(link.FieldKey).
+//		Aggregate(ent.Count()).
+//		Scan(ctx, &v)
+func (lq *LinkQuery) GroupBy(field string, fields ...string) *LinkGroupBy {
+	lq.ctx.Fields = append([]string{field}, fields...)
+	grbuild := &LinkGroupBy{build: lq}
+	grbuild.flds = &lq.ctx.Fields
+	grbuild.label = link.Label
+	grbuild.scan = grbuild.Scan
+	return grbuild
+}
+
+// Select allows the selection one or more fields/columns for the given query,
+// instead of selecting all fields in the entity.
+//
+// Example:
+//
+//	var v []struct {
+//		Key string `json:"key,omitempty"`
+//	}
+//
+//	client.Link.Query().
+//		Select(link.FieldKey).
+//		Scan(ctx, &v)
+func (lq *LinkQuery) Select(fields ...string) *LinkSelect {
+	lq.ctx.Fields = append(lq.ctx.Fields, fields...)
+	sbuild := &LinkSelect{LinkQuery: lq}
+	sbuild.label = link.Label
+	sbuild.flds, sbuild.scan = &lq.ctx.Fields, sbuild.Scan
+	return sbuild
+}
+
+// Aggregate returns a LinkSelect configured with the given aggregations.
+func (lq *LinkQuery) Aggregate(fns ...AggregateFunc) *LinkSelect {
+	return lq.Select().Aggregate(fns...)
+}
+
+func (lq *LinkQuery) prepareQuery(ctx context.Context) error {
+	for _, inter := range lq.inters {
+		if inter == nil {
+			return fmt.Errorf("ent: uninitialized interceptor (forgotten import ent/runtime?)")
+		}
+		if trv, ok := inter.(Traverser); ok {
+			if err := trv.Traverse(ctx, lq); err != nil {
+				return err
+			}
+		}
+	}
+	for _, f := range lq.ctx.Fields {
+		if !link.ValidColumn(f) {
+			return &ValidationError{Name: f, err: fmt.Errorf("ent: invalid field %q for query", f)}
+		}
+	}
+	if lq.path != nil {
+		prev, err := lq.path(ctx)
+		if err != nil {
+			return err
+		}
+		lq.sql = prev
+	}
+	return nil
+}
+
+func (lq *LinkQuery) sqlAll(ctx context.Context, hooks ...queryHook) ([]*Link, error) {
+	var (
+		nodes       = []*Link{}
+		_spec       = lq.querySpec()
+		loadedTypes = [1]bool{
+			lq.withOwner != nil,
+		}
+	)
+	_spec.ScanValues = func(columns []string) ([]any, error) {
+		return (*Link).scanValues(nil, columns)
+	}
+	_spec.Assign = func(columns []string, values []any) error {
+		node := &Link{config: lq.config}
+		nodes = append(nodes, node)
+		node.Edges.loadedTypes = loadedTypes
+		return node.assignValues(columns, values)
+	}
+	for i := range hooks {
+		hooks[i](ctx, _spec)
+	}
+	if err := sqlgraph.QueryNodes(ctx, lq.driver, _spec); err != nil {
+		return nil, err
+	}
+	if len(nodes) == 0 {
+		return nodes, nil
+	}
+	if query := lq.withOwner; query != nil {
+		if err := lq.loadOwner(ctx, query, nodes,
+			func(n *Link) { n.Edges.Owner = []*User{} },
+			func(n *Link, e *User) { n.Edges.Owner = append(n.Edges.Owner, e) }); err != nil {
+			return nil, err
+		}
+	}
+	return nodes, nil
+}
+
+func (lq *LinkQuery) loadOwner(ctx context.Context, query *UserQuery, nodes []*Link, init func(*Link), assign func(*Link, *User)) error {
+	edgeIDs := make([]driver.Value, len(nodes))
+	byID := make(map[uuid.UUID]*Link)
+	nids := make(map[uuid.UUID]map[*Link]struct{})
+	for i, node := range nodes {
+		edgeIDs[i] = node.ID
+		byID[node.ID] = node
+		if init != nil {
+			init(node)
+		}
+	}
+	query.Where(func(s *sql.Selector) {
+		joinT := sql.Table(link.OwnerTable)
+		s.Join(joinT).On(s.C(user.FieldID), joinT.C(link.OwnerPrimaryKey[0]))
+		s.Where(sql.InValues(joinT.C(link.OwnerPrimaryKey[1]), edgeIDs...))
+		columns := s.SelectedColumns()
+		s.Select(joinT.C(link.OwnerPrimaryKey[1]))
+		s.AppendSelect(columns...)
+		s.SetDistinct(false)
+	})
+	if err := query.prepareQuery(ctx); err != nil {
+		return err
+	}
+	qr := QuerierFunc(func(ctx context.Context, q Query) (Value, error) {
+		return query.sqlAll(ctx, func(_ context.Context, spec *sqlgraph.QuerySpec) {
+			assign := spec.Assign
+			values := spec.ScanValues
+			spec.ScanValues = func(columns []string) ([]any, error) {
+				values, err := values(columns[1:])
+				if err != nil {
+					return nil, err
+				}
+				return append([]any{new(uuid.UUID)}, values...), nil
+			}
+			spec.Assign = func(columns []string, values []any) error {
+				outValue := *values[0].(*uuid.UUID)
+				inValue := *values[1].(*uuid.UUID)
+				if nids[inValue] == nil {
+					nids[inValue] = map[*Link]struct{}{byID[outValue]: {}}
+					return assign(columns[1:], values[1:])
+				}
+				nids[inValue][byID[outValue]] = struct{}{}
+				return nil
+			}
+		})
+	})
+	neighbors, err := withInterceptors[[]*User](ctx, query, qr, query.inters)
+	if err != nil {
+		return err
+	}
+	for _, n := range neighbors {
+		nodes, ok := nids[n.ID]
+		if !ok {
+			return fmt.Errorf(`unexpected "owner" node returned %v`, n.ID)
+		}
+		for kn := range nodes {
+			assign(kn, n)
+		}
+	}
+	return nil
+}
+
+func (lq *LinkQuery) sqlCount(ctx context.Context) (int, error) {
+	_spec := lq.querySpec()
+	_spec.Node.Columns = lq.ctx.Fields
+	if len(lq.ctx.Fields) > 0 {
+		_spec.Unique = lq.ctx.Unique != nil && *lq.ctx.Unique
+	}
+	return sqlgraph.CountNodes(ctx, lq.driver, _spec)
+}
+
+func (lq *LinkQuery) querySpec() *sqlgraph.QuerySpec {
+	_spec := sqlgraph.NewQuerySpec(link.Table, link.Columns, sqlgraph.NewFieldSpec(link.FieldID, field.TypeUUID))
+	_spec.From = lq.sql
+	if unique := lq.ctx.Unique; unique != nil {
+		_spec.Unique = *unique
+	} else if lq.path != nil {
+		_spec.Unique = true
+	}
+	if fields := lq.ctx.Fields; len(fields) > 0 {
+		_spec.Node.Columns = make([]string, 0, len(fields))
+		_spec.Node.Columns = append(_spec.Node.Columns, link.FieldID)
+		for i := range fields {
+			if fields[i] != link.FieldID {
+				_spec.Node.Columns = append(_spec.Node.Columns, fields[i])
+			}
+		}
+	}
+	if ps := lq.predicates; len(ps) > 0 {
+		_spec.Predicate = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	if limit := lq.ctx.Limit; limit != nil {
+		_spec.Limit = *limit
+	}
+	if offset := lq.ctx.Offset; offset != nil {
+		_spec.Offset = *offset
+	}
+	if ps := lq.order; len(ps) > 0 {
+		_spec.Order = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	return _spec
+}
+
+func (lq *LinkQuery) sqlQuery(ctx context.Context) *sql.Selector {
+	builder := sql.Dialect(lq.driver.Dialect())
+	t1 := builder.Table(link.Table)
+	columns := lq.ctx.Fields
+	if len(columns) == 0 {
+		columns = link.Columns
+	}
+	selector := builder.Select(t1.Columns(columns...)...).From(t1)
+	if lq.sql != nil {
+		selector = lq.sql
+		selector.Select(selector.Columns(columns...)...)
+	}
+	if lq.ctx.Unique != nil && *lq.ctx.Unique {
+		selector.Distinct()
+	}
+	for _, p := range lq.predicates {
+		p(selector)
+	}
+	for _, p := range lq.order {
+		p(selector)
+	}
+	if offset := lq.ctx.Offset; offset != nil {
+		// limit is mandatory for offset clause. We start
+		// with default value, and override it below if needed.
+		selector.Offset(*offset).Limit(math.MaxInt32)
+	}
+	if limit := lq.ctx.Limit; limit != nil {
+		selector.Limit(*limit)
+	}
+	return selector
+}
+
+// LinkGroupBy is the group-by builder for Link entities.
+type LinkGroupBy struct {
+	selector
+	build *LinkQuery
+}
+
+// Aggregate adds the given aggregation functions to the group-by query.
+func (lgb *LinkGroupBy) Aggregate(fns ...AggregateFunc) *LinkGroupBy {
+	lgb.fns = append(lgb.fns, fns...)
+	return lgb
+}
+
+// Scan applies the selector query and scans the result into the given value.
+func (lgb *LinkGroupBy) Scan(ctx context.Context, v any) error {
+	ctx = setContextOp(ctx, lgb.build.ctx, ent.OpQueryGroupBy)
+	if err := lgb.build.prepareQuery(ctx); err != nil {
+		return err
+	}
+	return scanWithInterceptors[*LinkQuery, *LinkGroupBy](ctx, lgb.build, lgb, lgb.build.inters, v)
+}
+
+func (lgb *LinkGroupBy) sqlScan(ctx context.Context, root *LinkQuery, v any) error {
+	selector := root.sqlQuery(ctx).Select()
+	aggregation := make([]string, 0, len(lgb.fns))
+	for _, fn := range lgb.fns {
+		aggregation = append(aggregation, fn(selector))
+	}
+	if len(selector.SelectedColumns()) == 0 {
+		columns := make([]string, 0, len(*lgb.flds)+len(lgb.fns))
+		for _, f := range *lgb.flds {
+			columns = append(columns, selector.C(f))
+		}
+		columns = append(columns, aggregation...)
+		selector.Select(columns...)
+	}
+	selector.GroupBy(selector.Columns(*lgb.flds...)...)
+	if err := selector.Err(); err != nil {
+		return err
+	}
+	rows := &sql.Rows{}
+	query, args := selector.Query()
+	if err := lgb.build.driver.Query(ctx, query, args, rows); err != nil {
+		return err
+	}
+	defer rows.Close()
+	return sql.ScanSlice(rows, v)
+}
+
+// LinkSelect is the builder for selecting fields of Link entities.
+type LinkSelect struct {
+	*LinkQuery
+	selector
+}
+
+// Aggregate adds the given aggregation functions to the selector query.
+func (ls *LinkSelect) Aggregate(fns ...AggregateFunc) *LinkSelect {
+	ls.fns = append(ls.fns, fns...)
+	return ls
+}
+
+// Scan applies the selector query and scans the result into the given value.
+func (ls *LinkSelect) Scan(ctx context.Context, v any) error {
+	ctx = setContextOp(ctx, ls.ctx, ent.OpQuerySelect)
+	if err := ls.prepareQuery(ctx); err != nil {
+		return err
+	}
+	return scanWithInterceptors[*LinkQuery, *LinkSelect](ctx, ls.LinkQuery, ls, ls.inters, v)
+}
+
+func (ls *LinkSelect) sqlScan(ctx context.Context, root *LinkQuery, v any) error {
+	selector := root.sqlQuery(ctx)
+	aggregation := make([]string, 0, len(ls.fns))
+	for _, fn := range ls.fns {
+		aggregation = append(aggregation, fn(selector))
+	}
+	switch n := len(*ls.selector.flds); {
+	case n == 0 && len(aggregation) > 0:
+		selector.Select(aggregation...)
+	case n != 0 && len(aggregation) > 0:
+		selector.AppendSelect(aggregation...)
+	}
+	rows := &sql.Rows{}
+	query, args := selector.Query()
+	if err := ls.driver.Query(ctx, query, args, rows); err != nil {
+		return err
+	}
+	defer rows.Close()
+	return sql.ScanSlice(rows, v)
+}

ent/link_update.go

@@ -0,0 +1,433 @@
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+	"errors"
+	"fmt"
+
+	"code.gurenya.net/carlsmei/muninn-aio/ent/link"
+	"code.gurenya.net/carlsmei/muninn-aio/ent/predicate"
+	"code.gurenya.net/carlsmei/muninn-aio/ent/user"
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"entgo.io/ent/schema/field"
+	"github.com/google/uuid"
+)
+
+// LinkUpdate is the builder for updating Link entities.
+type LinkUpdate struct {
+	config
+	hooks    []Hook
+	mutation *LinkMutation
+}
+
+// Where appends a list predicates to the LinkUpdate builder.
+func (lu *LinkUpdate) Where(ps ...predicate.Link) *LinkUpdate {
+	lu.mutation.Where(ps...)
+	return lu
+}
+
+// SetKey sets the "key" field.
+func (lu *LinkUpdate) SetKey(s string) *LinkUpdate {
+	lu.mutation.SetKey(s)
+	return lu
+}
+
+// SetNillableKey sets the "key" field if the given value is not nil.
+func (lu *LinkUpdate) SetNillableKey(s *string) *LinkUpdate {
+	if s != nil {
+		lu.SetKey(*s)
+	}
+	return lu
+}
+
+// SetOriginalURL sets the "original_url" field.
+func (lu *LinkUpdate) SetOriginalURL(s string) *LinkUpdate {
+	lu.mutation.SetOriginalURL(s)
+	return lu
+}
+
+// SetNillableOriginalURL sets the "original_url" field if the given value is not nil.
+func (lu *LinkUpdate) SetNillableOriginalURL(s *string) *LinkUpdate {
+	if s != nil {
+		lu.SetOriginalURL(*s)
+	}
+	return lu
+}
+
+// AddOwnerIDs adds the "owner" edge to the User entity by IDs.
+func (lu *LinkUpdate) AddOwnerIDs(ids ...uuid.UUID) *LinkUpdate {
+	lu.mutation.AddOwnerIDs(ids...)
+	return lu
+}
+
+// AddOwner adds the "owner" edges to the User entity.
+func (lu *LinkUpdate) AddOwner(u ...*User) *LinkUpdate {
+	ids := make([]uuid.UUID, len(u))
+	for i := range u {
+		ids[i] = u[i].ID
+	}
+	return lu.AddOwnerIDs(ids...)
+}
+
+// Mutation returns the LinkMutation object of the builder.
+func (lu *LinkUpdate) Mutation() *LinkMutation {
+	return lu.mutation
+}
+
+// ClearOwner clears all "owner" edges to the User entity.
+func (lu *LinkUpdate) ClearOwner() *LinkUpdate {
+	lu.mutation.ClearOwner()
+	return lu
+}
+
+// RemoveOwnerIDs removes the "owner" edge to User entities by IDs.
+func (lu *LinkUpdate) RemoveOwnerIDs(ids ...uuid.UUID) *LinkUpdate {
+	lu.mutation.RemoveOwnerIDs(ids...)
+	return lu
+}
+
+// RemoveOwner removes "owner" edges to User entities.
+func (lu *LinkUpdate) RemoveOwner(u ...*User) *LinkUpdate {
+	ids := make([]uuid.UUID, len(u))
+	for i := range u {
+		ids[i] = u[i].ID
+	}
+	return lu.RemoveOwnerIDs(ids...)
+}
+
+// Save executes the query and returns the number of nodes affected by the update operation.
+func (lu *LinkUpdate) Save(ctx context.Context) (int, error) {
+	return withHooks(ctx, lu.sqlSave, lu.mutation, lu.hooks)
+}
+
+// SaveX is like Save, but panics if an error occurs.
+func (lu *LinkUpdate) SaveX(ctx context.Context) int {
+	affected, err := lu.Save(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return affected
+}
+
+// Exec executes the query.
+func (lu *LinkUpdate) Exec(ctx context.Context) error {
+	_, err := lu.Save(ctx)
+	return err
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (lu *LinkUpdate) ExecX(ctx context.Context) {
+	if err := lu.Exec(ctx); err != nil {
+		panic(err)
+	}
+}
+
+// check runs all checks and user-defined validators on the builder.
+func (lu *LinkUpdate) check() error {
+	if v, ok := lu.mutation.OriginalURL(); ok {
+		if err := link.OriginalURLValidator(v); err != nil {
+			return &ValidationError{Name: "original_url", err: fmt.Errorf(`ent: validator failed for field "Link.original_url": %w`, err)}
+		}
+	}
+	return nil
+}
+
+func (lu *LinkUpdate) sqlSave(ctx context.Context) (n int, err error) {
+	if err := lu.check(); err != nil {
+		return n, err
+	}
+	_spec := sqlgraph.NewUpdateSpec(link.Table, link.Columns, sqlgraph.NewFieldSpec(link.FieldID, field.TypeUUID))
+	if ps := lu.mutation.predicates; len(ps) > 0 {
+		_spec.Predicate = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	if value, ok := lu.mutation.Key(); ok {
+		_spec.SetField(link.FieldKey, field.TypeString, value)
+	}
+	if value, ok := lu.mutation.OriginalURL(); ok {
+		_spec.SetField(link.FieldOriginalURL, field.TypeString, value)
+	}
+	if lu.mutation.OwnerCleared() {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.M2M,
+			Inverse: true,
+			Table:   link.OwnerTable,
+			Columns: link.OwnerPrimaryKey,
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(user.FieldID, field.TypeUUID),
+			},
+		}
+		_spec.Edges.Clear = append(_spec.Edges.Clear, edge)
+	}
+	if nodes := lu.mutation.RemovedOwnerIDs(); len(nodes) > 0 && !lu.mutation.OwnerCleared() {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.M2M,
+			Inverse: true,
+			Table:   link.OwnerTable,
+			Columns: link.OwnerPrimaryKey,
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(user.FieldID, field.TypeUUID),
+			},
+		}
+		for _, k := range nodes {
+			edge.Target.Nodes = append(edge.Target.Nodes, k)
+		}
+		_spec.Edges.Clear = append(_spec.Edges.Clear, edge)
+	}
+	if nodes := lu.mutation.OwnerIDs(); len(nodes) > 0 {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.M2M,
+			Inverse: true,
+			Table:   link.OwnerTable,
+			Columns: link.OwnerPrimaryKey,
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(user.FieldID, field.TypeUUID),
+			},
+		}
+		for _, k := range nodes {
+			edge.Target.Nodes = append(edge.Target.Nodes, k)
+		}
+		_spec.Edges.Add = append(_spec.Edges.Add, edge)
+	}
+	if n, err = sqlgraph.UpdateNodes(ctx, lu.driver, _spec); err != nil {
+		if _, ok := err.(*sqlgraph.NotFoundError); ok {
+			err = &NotFoundError{link.Label}
+		} else if sqlgraph.IsConstraintError(err) {
+			err = &ConstraintError{msg: err.Error(), wrap: err}
+		}
+		return 0, err
+	}
+	lu.mutation.done = true
+	return n, nil
+}
+
+// LinkUpdateOne is the builder for updating a single Link entity.
+type LinkUpdateOne struct {
+	config
+	fields   []string
+	hooks    []Hook
+	mutation *LinkMutation
+}
+
+// SetKey sets the "key" field.
+func (luo *LinkUpdateOne) SetKey(s string) *LinkUpdateOne {
+	luo.mutation.SetKey(s)
+	return luo
+}
+
+// SetNillableKey sets the "key" field if the given value is not nil.
+func (luo *LinkUpdateOne) SetNillableKey(s *string) *LinkUpdateOne {
+	if s != nil {
+		luo.SetKey(*s)
+	}
+	return luo
+}
+
+// SetOriginalURL sets the "original_url" field.
+func (luo *LinkUpdateOne) SetOriginalURL(s string) *LinkUpdateOne {
+	luo.mutation.SetOriginalURL(s)
+	return luo
+}
+
+// SetNillableOriginalURL sets the "original_url" field if the given value is not nil.
+func (luo *LinkUpdateOne) SetNillableOriginalURL(s *string) *LinkUpdateOne {
+	if s != nil {
+		luo.SetOriginalURL(*s)
+	}
+	return luo
+}
+
+// AddOwnerIDs adds the "owner" edge to the User entity by IDs.
+func (luo *LinkUpdateOne) AddOwnerIDs(ids ...uuid.UUID) *LinkUpdateOne {
+	luo.mutation.AddOwnerIDs(ids...)
+	return luo
+}
+
+// AddOwner adds the "owner" edges to the User entity.
+func (luo *LinkUpdateOne) AddOwner(u ...*User) *LinkUpdateOne {
+	ids := make([]uuid.UUID, len(u))
+	for i := range u {
+		ids[i] = u[i].ID
+	}
+	return luo.AddOwnerIDs(ids...)
+}
+
+// Mutation returns the LinkMutation object of the builder.
+func (luo *LinkUpdateOne) Mutation() *LinkMutation {
+	return luo.mutation
+}
+
+// ClearOwner clears all "owner" edges to the User entity.
+func (luo *LinkUpdateOne) ClearOwner() *LinkUpdateOne {
+	luo.mutation.ClearOwner()
+	return luo
+}
+
+// RemoveOwnerIDs removes the "owner" edge to User entities by IDs.
+func (luo *LinkUpdateOne) RemoveOwnerIDs(ids ...uuid.UUID) *LinkUpdateOne {
+	luo.mutation.RemoveOwnerIDs(ids...)
+	return luo
+}
+
+// RemoveOwner removes "owner" edges to User entities.
+func (luo *LinkUpdateOne) RemoveOwner(u ...*User) *LinkUpdateOne {
+	ids := make([]uuid.UUID, len(u))
+	for i := range u {
+		ids[i] = u[i].ID
+	}
+	return luo.RemoveOwnerIDs(ids...)
+}
+
+// Where appends a list predicates to the LinkUpdate builder.
+func (luo *LinkUpdateOne) Where(ps ...predicate.Link) *LinkUpdateOne {
+	luo.mutation.Where(ps...)
+	return luo
+}
+
+// Select allows selecting one or more fields (columns) of the returned entity.
+// The default is selecting all fields defined in the entity schema.
+func (luo *LinkUpdateOne) Select(field string, fields ...string) *LinkUpdateOne {
+	luo.fields = append([]string{field}, fields...)
+	return luo
+}
+
+// Save executes the query and returns the updated Link entity.
+func (luo *LinkUpdateOne) Save(ctx context.Context) (*Link, error) {
+	return withHooks(ctx, luo.sqlSave, luo.mutation, luo.hooks)
+}
+
+// SaveX is like Save, but panics if an error occurs.
+func (luo *LinkUpdateOne) SaveX(ctx context.Context) *Link {
+	node, err := luo.Save(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return node
+}
+
+// Exec executes the query on the entity.
+func (luo *LinkUpdateOne) Exec(ctx context.Context) error {
+	_, err := luo.Save(ctx)
+	return err
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (luo *LinkUpdateOne) ExecX(ctx context.Context) {
+	if err := luo.Exec(ctx); err != nil {
+		panic(err)
+	}
+}
+
+// check runs all checks and user-defined validators on the builder.
+func (luo *LinkUpdateOne) check() error {
+	if v, ok := luo.mutation.OriginalURL(); ok {
+		if err := link.OriginalURLValidator(v); err != nil {
+			return &ValidationError{Name: "original_url", err: fmt.Errorf(`ent: validator failed for field "Link.original_url": %w`, err)}
+		}
+	}
+	return nil
+}
+
+func (luo *LinkUpdateOne) sqlSave(ctx context.Context) (_node *Link, err error) {
+	if err := luo.check(); err != nil {
+		return _node, err
+	}
+	_spec := sqlgraph.NewUpdateSpec(link.Table, link.Columns, sqlgraph.NewFieldSpec(link.FieldID, field.TypeUUID))
+	id, ok := luo.mutation.ID()
+	if !ok {
+		return nil, &ValidationError{Name: "id", err: errors.New(`ent: missing "Link.id" for update`)}
+	}
+	_spec.Node.ID.Value = id
+	if fields := luo.fields; len(fields) > 0 {
+		_spec.Node.Columns = make([]string, 0, len(fields))
+		_spec.Node.Columns = append(_spec.Node.Columns, link.FieldID)
+		for _, f := range fields {
+			if !link.ValidColumn(f) {
+				return nil, &ValidationError{Name: f, err: fmt.Errorf("ent: invalid field %q for query", f)}
+			}
+			if f != link.FieldID {
+				_spec.Node.Columns = append(_spec.Node.Columns, f)
+			}
+		}
+	}
+	if ps := luo.mutation.predicates; len(ps) > 0 {
+		_spec.Predicate = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	if value, ok := luo.mutation.Key(); ok {
+		_spec.SetField(link.FieldKey, field.TypeString, value)
+	}
+	if value, ok := luo.mutation.OriginalURL(); ok {
+		_spec.SetField(link.FieldOriginalURL, field.TypeString, value)
+	}
+	if luo.mutation.OwnerCleared() {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.M2M,
+			Inverse: true,
+			Table:   link.OwnerTable,
+			Columns: link.OwnerPrimaryKey,
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(user.FieldID, field.TypeUUID),
+			},
+		}
+		_spec.Edges.Clear = append(_spec.Edges.Clear, edge)
+	}
+	if nodes := luo.mutation.RemovedOwnerIDs(); len(nodes) > 0 && !luo.mutation.OwnerCleared() {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.M2M,
+			Inverse: true,
+			Table:   link.OwnerTable,
+			Columns: link.OwnerPrimaryKey,
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(user.FieldID, field.TypeUUID),
+			},
+		}
+		for _, k := range nodes {
+			edge.Target.Nodes = append(edge.Target.Nodes, k)
+		}
+		_spec.Edges.Clear = append(_spec.Edges.Clear, edge)
+	}
+	if nodes := luo.mutation.OwnerIDs(); len(nodes) > 0 {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.M2M,
+			Inverse: true,
+			Table:   link.OwnerTable,
+			Columns: link.OwnerPrimaryKey,
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(user.FieldID, field.TypeUUID),
+			},
+		}
+		for _, k := range nodes {
+			edge.Target.Nodes = append(edge.Target.Nodes, k)
+		}
+		_spec.Edges.Add = append(_spec.Edges.Add, edge)
+	}
+	_node = &Link{config: luo.config}
+	_spec.Assign = _node.assignValues
+	_spec.ScanValues = _node.scanValues
+	if err = sqlgraph.UpdateNode(ctx, luo.driver, _spec); err != nil {
+		if _, ok := err.(*sqlgraph.NotFoundError); ok {
+			err = &NotFoundError{link.Label}
+		} else if sqlgraph.IsConstraintError(err) {
+			err = &ConstraintError{msg: err.Error(), wrap: err}
+		}
+		return nil, err
+	}
+	luo.mutation.done = true
+	return _node, nil
+}

ent/migrate/migrate.go

@@ -0,0 +1,64 @@
+// Code generated by ent, DO NOT EDIT.
+
+package migrate
+
+import (
+	"context"
+	"fmt"
+	"io"
+
+	"entgo.io/ent/dialect"
+	"entgo.io/ent/dialect/sql/schema"
+)
+
+var (
+	// WithGlobalUniqueID sets the universal ids options to the migration.
+	// If this option is enabled, ent migration will allocate a 1<<32 range
+	// for the ids of each entity (table).
+	// Note that this option cannot be applied on tables that already exist.
+	WithGlobalUniqueID = schema.WithGlobalUniqueID
+	// WithDropColumn sets the drop column option to the migration.
+	// If this option is enabled, ent migration will drop old columns
+	// that were used for both fields and edges. This defaults to false.
+	WithDropColumn = schema.WithDropColumn
+	// WithDropIndex sets the drop index option to the migration.
+	// If this option is enabled, ent migration will drop old indexes
+	// that were defined in the schema. This defaults to false.
+	// Note that unique constraints are defined using `UNIQUE INDEX`,
+	// and therefore, it's recommended to enable this option to get more
+	// flexibility in the schema changes.
+	WithDropIndex = schema.WithDropIndex
+	// WithForeignKeys enables creating foreign-key in schema DDL. This defaults to true.
+	WithForeignKeys = schema.WithForeignKeys
+)
+
+// Schema is the API for creating, migrating and dropping a schema.
+type Schema struct {
+	drv dialect.Driver
+}
+
+// NewSchema creates a new schema client.
+func NewSchema(drv dialect.Driver) *Schema { return &Schema{drv: drv} }
+
+// Create creates all schema resources.
+func (s *Schema) Create(ctx context.Context, opts ...schema.MigrateOption) error {
+	return Create(ctx, s, Tables, opts...)
+}
+
+// Create creates all table resources using the given schema driver.
+func Create(ctx context.Context, s *Schema, tables []*schema.Table, opts ...schema.MigrateOption) error {
+	migrate, err := schema.NewMigrate(s.drv, opts...)
+	if err != nil {
+		return fmt.Errorf("ent/migrate: %w", err)
+	}
+	return migrate.Create(ctx, tables...)
+}
+
+// WriteTo writes the schema changes to w instead of running them against the database.
+//
+//	if err := client.Schema.WriteTo(context.Background(), os.Stdout); err != nil {
+//		log.Fatal(err)
+//	}
+func (s *Schema) WriteTo(ctx context.Context, w io.Writer, opts ...schema.MigrateOption) error {
+	return Create(ctx, &Schema{drv: &schema.WriteDriver{Writer: w, Driver: s.drv}}, Tables, opts...)
+}

ent/migrate/schema.go

@@ -0,0 +1,77 @@
+// Code generated by ent, DO NOT EDIT.
+
+package migrate
+
+import (
+	"entgo.io/ent/dialect/sql/schema"
+	"entgo.io/ent/schema/field"
+)
+
+var (
+	// LinksColumns holds the columns for the "links" table.
+	LinksColumns = []*schema.Column{
+		{Name: "id", Type: field.TypeUUID, Unique: true},
+		{Name: "key", Type: field.TypeString, Unique: true},
+		{Name: "original_url", Type: field.TypeString},
+	}
+	// LinksTable holds the schema information for the "links" table.
+	LinksTable = &schema.Table{
+		Name:       "links",
+		Columns:    LinksColumns,
+		PrimaryKey: []*schema.Column{LinksColumns[0]},
+		Indexes: []*schema.Index{
+			{
+				Name:    "link_key",
+				Unique:  true,
+				Columns: []*schema.Column{LinksColumns[1]},
+			},
+		},
+	}
+	// UsersColumns holds the columns for the "users" table.
+	UsersColumns = []*schema.Column{
+		{Name: "id", Type: field.TypeUUID, Unique: true},
+		{Name: "telegram_id", Type: field.TypeInt64, Unique: true},
+	}
+	// UsersTable holds the schema information for the "users" table.
+	UsersTable = &schema.Table{
+		Name:       "users",
+		Columns:    UsersColumns,
+		PrimaryKey: []*schema.Column{UsersColumns[0]},
+	}
+	// UserLinksColumns holds the columns for the "user_links" table.
+	UserLinksColumns = []*schema.Column{
+		{Name: "user_id", Type: field.TypeUUID},
+		{Name: "link_id", Type: field.TypeUUID},
+	}
+	// UserLinksTable holds the schema information for the "user_links" table.
+	UserLinksTable = &schema.Table{
+		Name:       "user_links",
+		Columns:    UserLinksColumns,
+		PrimaryKey: []*schema.Column{UserLinksColumns[0], UserLinksColumns[1]},
+		ForeignKeys: []*schema.ForeignKey{
+			{
+				Symbol:     "user_links_user_id",
+				Columns:    []*schema.Column{UserLinksColumns[0]},
+				RefColumns: []*schema.Column{UsersColumns[0]},
+				OnDelete:   schema.Cascade,
+			},
+			{
+				Symbol:     "user_links_link_id",
+				Columns:    []*schema.Column{UserLinksColumns[1]},
+				RefColumns: []*schema.Column{LinksColumns[0]},
+				OnDelete:   schema.Cascade,
+			},
+		},
+	}
+	// Tables holds all the tables in the schema.
+	Tables = []*schema.Table{
+		LinksTable,
+		UsersTable,
+		UserLinksTable,
+	}
+)
+
+func init() {
+	UserLinksTable.ForeignKeys[0].RefTable = UsersTable
+	UserLinksTable.ForeignKeys[1].RefTable = LinksTable
+}

ent/mutation.go

@@ -0,0 +1,970 @@
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"sync"
+
+	"code.gurenya.net/carlsmei/muninn-aio/ent/link"
+	"code.gurenya.net/carlsmei/muninn-aio/ent/predicate"
+	"code.gurenya.net/carlsmei/muninn-aio/ent/user"
+	"entgo.io/ent"
+	"entgo.io/ent/dialect/sql"
+	"github.com/google/uuid"
+)
+
+const (
+	// Operation types.
+	OpCreate    = ent.OpCreate
+	OpDelete    = ent.OpDelete
+	OpDeleteOne = ent.OpDeleteOne
+	OpUpdate    = ent.OpUpdate
+	OpUpdateOne = ent.OpUpdateOne
+
+	// Node types.
+	TypeLink = "Link"
+	TypeUser = "User"
+)
+
+// LinkMutation represents an operation that mutates the Link nodes in the graph.
+type LinkMutation struct {
+	config
+	op            Op
+	typ           string
+	id            *uuid.UUID
+	key           *string
+	original_url  *string
+	clearedFields map[string]struct{}
+	owner         map[uuid.UUID]struct{}
+	removedowner  map[uuid.UUID]struct{}
+	clearedowner  bool
+	done          bool
+	oldValue      func(context.Context) (*Link, error)
+	predicates    []predicate.Link
+}
+
+var _ ent.Mutation = (*LinkMutation)(nil)
+
+// linkOption allows management of the mutation configuration using functional options.
+type linkOption func(*LinkMutation)
+
+// newLinkMutation creates new mutation for the Link entity.
+func newLinkMutation(c config, op Op, opts ...linkOption) *LinkMutation {
+	m := &LinkMutation{
+		config:        c,
+		op:            op,
+		typ:           TypeLink,
+		clearedFields: make(map[string]struct{}),
+	}
+	for _, opt := range opts {
+		opt(m)
+	}
+	return m
+}
+
+// withLinkID sets the ID field of the mutation.
+func withLinkID(id uuid.UUID) linkOption {
+	return func(m *LinkMutation) {
+		var (
+			err   error
+			once  sync.Once
+			value *Link
+		)
+		m.oldValue = func(ctx context.Context) (*Link, error) {
+			once.Do(func() {
+				if m.done {
+					err = errors.New("querying old values post mutation is not allowed")
+				} else {
+					value, err = m.Client().Link.Get(ctx, id)
+				}
+			})
+			return value, err
+		}
+		m.id = &id
+	}
+}
+
+// withLink sets the old Link of the mutation.
+func withLink(node *Link) linkOption {
+	return func(m *LinkMutation) {
+		m.oldValue = func(context.Context) (*Link, error) {
+			return node, nil
+		}
+		m.id = &node.ID
+	}
+}
+
+// Client returns a new `ent.Client` from the mutation. If the mutation was
+// executed in a transaction (ent.Tx), a transactional client is returned.
+func (m LinkMutation) Client() *Client {
+	client := &Client{config: m.config}
+	client.init()
+	return client
+}
+
+// Tx returns an `ent.Tx` for mutations that were executed in transactions;
+// it returns an error otherwise.
+func (m LinkMutation) Tx() (*Tx, error) {
+	if _, ok := m.driver.(*txDriver); !ok {
+		return nil, errors.New("ent: mutation is not running in a transaction")
+	}
+	tx := &Tx{config: m.config}
+	tx.init()
+	return tx, nil
+}
+
+// SetID sets the value of the id field. Note that this
+// operation is only accepted on creation of Link entities.
+func (m *LinkMutation) SetID(id uuid.UUID) {
+	m.id = &id
+}
+
+// ID returns the ID value in the mutation. Note that the ID is only available
+// if it was provided to the builder or after it was returned from the database.
+func (m *LinkMutation) ID() (id uuid.UUID, exists bool) {
+	if m.id == nil {
+		return
+	}
+	return *m.id, true
+}
+
+// IDs queries the database and returns the entity ids that match the mutation's predicate.
+// That means, if the mutation is applied within a transaction with an isolation level such
+// as sql.LevelSerializable, the returned ids match the ids of the rows that will be updated
+// or updated by the mutation.
+func (m *LinkMutation) IDs(ctx context.Context) ([]uuid.UUID, error) {
+	switch {
+	case m.op.Is(OpUpdateOne | OpDeleteOne):
+		id, exists := m.ID()
+		if exists {
+			return []uuid.UUID{id}, nil
+		}
+		fallthrough
+	case m.op.Is(OpUpdate | OpDelete):
+		return m.Client().Link.Query().Where(m.predicates...).IDs(ctx)
+	default:
+		return nil, fmt.Errorf("IDs is not allowed on %s operations", m.op)
+	}
+}
+
+// SetKey sets the "key" field.
+func (m *LinkMutation) SetKey(s string) {
+	m.key = &s
+}
+
+// Key returns the value of the "key" field in the mutation.
+func (m *LinkMutation) Key() (r string, exists bool) {
+	v := m.key
+	if v == nil {
+		return
+	}
+	return *v, true
+}
+
+// OldKey returns the old "key" field's value of the Link entity.
+// If the Link object wasn't provided to the builder, the object is fetched from the database.
+// An error is returned if the mutation operation is not UpdateOne, or the database query fails.
+func (m *LinkMutation) OldKey(ctx context.Context) (v string, err error) {
+	if !m.op.Is(OpUpdateOne) {
+		return v, errors.New("OldKey is only allowed on UpdateOne operations")
+	}
+	if m.id == nil || m.oldValue == nil {
+		return v, errors.New("OldKey requires an ID field in the mutation")
+	}
+	oldValue, err := m.oldValue(ctx)
+	if err != nil {
+		return v, fmt.Errorf("querying old value for OldKey: %w", err)
+	}
+	return oldValue.Key, nil
+}
+
+// ResetKey resets all changes to the "key" field.
+func (m *LinkMutation) ResetKey() {
+	m.key = nil
+}
+
+// SetOriginalURL sets the "original_url" field.
+func (m *LinkMutation) SetOriginalURL(s string) {
+	m.original_url = &s
+}
+
+// OriginalURL returns the value of the "original_url" field in the mutation.
+func (m *LinkMutation) OriginalURL() (r string, exists bool) {
+	v := m.original_url
+	if v == nil {
+		return
+	}
+	return *v, true
+}
+
+// OldOriginalURL returns the old "original_url" field's value of the Link entity.
+// If the Link object wasn't provided to the builder, the object is fetched from the database.
+// An error is returned if the mutation operation is not UpdateOne, or the database query fails.
+func (m *LinkMutation) OldOriginalURL(ctx context.Context) (v string, err error) {
+	if !m.op.Is(OpUpdateOne) {
+		return v, errors.New("OldOriginalURL is only allowed on UpdateOne operations")
+	}
+	if m.id == nil || m.oldValue == nil {
+		return v, errors.New("OldOriginalURL requires an ID field in the mutation")
+	}
+	oldValue, err := m.oldValue(ctx)
+	if err != nil {
+		return v, fmt.Errorf("querying old value for OldOriginalURL: %w", err)
+	}
+	return oldValue.OriginalURL, nil
+}
+
+// ResetOriginalURL resets all changes to the "original_url" field.
+func (m *LinkMutation) ResetOriginalURL() {
+	m.original_url = nil
+}
+
+// AddOwnerIDs adds the "owner" edge to the User entity by ids.
+func (m *LinkMutation) AddOwnerIDs(ids ...uuid.UUID) {
+	if m.owner == nil {
+		m.owner = make(map[uuid.UUID]struct{})
+	}
+	for i := range ids {
+		m.owner[ids[i]] = struct{}{}
+	}
+}
+
+// ClearOwner clears the "owner" edge to the User entity.
+func (m *LinkMutation) ClearOwner() {
+	m.clearedowner = true
+}
+
+// OwnerCleared reports if the "owner" edge to the User entity was cleared.
+func (m *LinkMutation) OwnerCleared() bool {
+	return m.clearedowner
+}
+
+// RemoveOwnerIDs removes the "owner" edge to the User entity by IDs.
+func (m *LinkMutation) RemoveOwnerIDs(ids ...uuid.UUID) {
+	if m.removedowner == nil {
+		m.removedowner = make(map[uuid.UUID]struct{})
+	}
+	for i := range ids {
+		delete(m.owner, ids[i])
+		m.removedowner[ids[i]] = struct{}{}
+	}
+}
+
+// RemovedOwner returns the removed IDs of the "owner" edge to the User entity.
+func (m *LinkMutation) RemovedOwnerIDs() (ids []uuid.UUID) {
+	for id := range m.removedowner {
+		ids = append(ids, id)
+	}
+	return
+}
+
+// OwnerIDs returns the "owner" edge IDs in the mutation.
+func (m *LinkMutation) OwnerIDs() (ids []uuid.UUID) {
+	for id := range m.owner {
+		ids = append(ids, id)
+	}
+	return
+}
+
+// ResetOwner resets all changes to the "owner" edge.
+func (m *LinkMutation) ResetOwner() {
+	m.owner = nil
+	m.clearedowner = false
+	m.removedowner = nil
+}
+
+// Where appends a list predicates to the LinkMutation builder.
+func (m *LinkMutation) Where(ps ...predicate.Link) {
+	m.predicates = append(m.predicates, ps...)
+}
+
+// WhereP appends storage-level predicates to the LinkMutation builder. Using this method,
+// users can use type-assertion to append predicates that do not depend on any generated package.
+func (m *LinkMutation) WhereP(ps ...func(*sql.Selector)) {
+	p := make([]predicate.Link, len(ps))
+	for i := range ps {
+		p[i] = ps[i]
+	}
+	m.Where(p...)
+}
+
+// Op returns the operation name.
+func (m *LinkMutation) Op() Op {
+	return m.op
+}
+
+// SetOp allows setting the mutation operation.
+func (m *LinkMutation) SetOp(op Op) {
+	m.op = op
+}
+
+// Type returns the node type of this mutation (Link).
+func (m *LinkMutation) Type() string {
+	return m.typ
+}
+
+// Fields returns all fields that were changed during this mutation. Note that in
+// order to get all numeric fields that were incremented/decremented, call
+// AddedFields().
+func (m *LinkMutation) Fields() []string {
+	fields := make([]string, 0, 2)
+	if m.key != nil {
+		fields = append(fields, link.FieldKey)
+	}
+	if m.original_url != nil {
+		fields = append(fields, link.FieldOriginalURL)
+	}
+	return fields
+}
+
+// Field returns the value of a field with the given name. The second boolean
+// return value indicates that this field was not set, or was not defined in the
+// schema.
+func (m *LinkMutation) Field(name string) (ent.Value, bool) {
+	switch name {
+	case link.FieldKey:
+		return m.Key()
+	case link.FieldOriginalURL:
+		return m.OriginalURL()
+	}
+	return nil, false
+}
+
+// OldField returns the old value of the field from the database. An error is
+// returned if the mutation operation is not UpdateOne, or the query to the
+// database failed.
+func (m *LinkMutation) OldField(ctx context.Context, name string) (ent.Value, error) {
+	switch name {
+	case link.FieldKey:
+		return m.OldKey(ctx)
+	case link.FieldOriginalURL:
+		return m.OldOriginalURL(ctx)
+	}
+	return nil, fmt.Errorf("unknown Link field %s", name)
+}
+
+// SetField sets the value of a field with the given name. It returns an error if
+// the field is not defined in the schema, or if the type mismatched the field
+// type.
+func (m *LinkMutation) SetField(name string, value ent.Value) error {
+	switch name {
+	case link.FieldKey:
+		v, ok := value.(string)
+		if !ok {
+			return fmt.Errorf("unexpected type %T for field %s", value, name)
+		}
+		m.SetKey(v)
+		return nil
+	case link.FieldOriginalURL:
+		v, ok := value.(string)
+		if !ok {
+			return fmt.Errorf("unexpected type %T for field %s", value, name)
+		}
+		m.SetOriginalURL(v)
+		return nil
+	}
+	return fmt.Errorf("unknown Link field %s", name)
+}
+
+// AddedFields returns all numeric fields that were incremented/decremented during
+// this mutation.
+func (m *LinkMutation) AddedFields() []string {
+	return nil
+}
+
+// AddedField returns the numeric value that was incremented/decremented on a field
+// with the given name. The second boolean return value indicates that this field
+// was not set, or was not defined in the schema.
+func (m *LinkMutation) AddedField(name string) (ent.Value, bool) {
+	return nil, false
+}
+
+// AddField adds the value to the field with the given name. It returns an error if
+// the field is not defined in the schema, or if the type mismatched the field
+// type.
+func (m *LinkMutation) AddField(name string, value ent.Value) error {
+	switch name {
+	}
+	return fmt.Errorf("unknown Link numeric field %s", name)
+}
+
+// ClearedFields returns all nullable fields that were cleared during this
+// mutation.
+func (m *LinkMutation) ClearedFields() []string {
+	return nil
+}
+
+// FieldCleared returns a boolean indicating if a field with the given name was
+// cleared in this mutation.
+func (m *LinkMutation) FieldCleared(name string) bool {
+	_, ok := m.clearedFields[name]
+	return ok
+}
+
+// ClearField clears the value of the field with the given name. It returns an
+// error if the field is not defined in the schema.
+func (m *LinkMutation) ClearField(name string) error {
+	return fmt.Errorf("unknown Link nullable field %s", name)
+}
+
+// ResetField resets all changes in the mutation for the field with the given name.
+// It returns an error if the field is not defined in the schema.
+func (m *LinkMutation) ResetField(name string) error {
+	switch name {
+	case link.FieldKey:
+		m.ResetKey()
+		return nil
+	case link.FieldOriginalURL:
+		m.ResetOriginalURL()
+		return nil
+	}
+	return fmt.Errorf("unknown Link field %s", name)
+}
+
+// AddedEdges returns all edge names that were set/added in this mutation.
+func (m *LinkMutation) AddedEdges() []string {
+	edges := make([]string, 0, 1)
+	if m.owner != nil {
+		edges = append(edges, link.EdgeOwner)
+	}
+	return edges
+}
+
+// AddedIDs returns all IDs (to other nodes) that were added for the given edge
+// name in this mutation.
+func (m *LinkMutation) AddedIDs(name string) []ent.Value {
+	switch name {
+	case link.EdgeOwner:
+		ids := make([]ent.Value, 0, len(m.owner))
+		for id := range m.owner {
+			ids = append(ids, id)
+		}
+		return ids
+	}
+	return nil
+}
+
+// RemovedEdges returns all edge names that were removed in this mutation.
+func (m *LinkMutation) RemovedEdges() []string {
+	edges := make([]string, 0, 1)
+	if m.removedowner != nil {
+		edges = append(edges, link.EdgeOwner)
+	}
+	return edges
+}
+
+// RemovedIDs returns all IDs (to other nodes) that were removed for the edge with
+// the given name in this mutation.
+func (m *LinkMutation) RemovedIDs(name string) []ent.Value {
+	switch name {
+	case link.EdgeOwner:
+		ids := make([]ent.Value, 0, len(m.removedowner))
+		for id := range m.removedowner {
+			ids = append(ids, id)
+		}
+		return ids
+	}
+	return nil
+}
+
+// ClearedEdges returns all edge names that were cleared in this mutation.
+func (m *LinkMutation) ClearedEdges() []string {
+	edges := make([]string, 0, 1)
+	if m.clearedowner {
+		edges = append(edges, link.EdgeOwner)
+	}
+	return edges
+}
+
+// EdgeCleared returns a boolean which indicates if the edge with the given name
+// was cleared in this mutation.
+func (m *LinkMutation) EdgeCleared(name string) bool {
+	switch name {
+	case link.EdgeOwner:
+		return m.clearedowner
+	}
+	return false
+}
+
+// ClearEdge clears the value of the edge with the given name. It returns an error
+// if that edge is not defined in the schema.
+func (m *LinkMutation) ClearEdge(name string) error {
+	switch name {
+	}
+	return fmt.Errorf("unknown Link unique edge %s", name)
+}
+
+// ResetEdge resets all changes to the edge with the given name in this mutation.
+// It returns an error if the edge is not defined in the schema.
+func (m *LinkMutation) ResetEdge(name string) error {
+	switch name {
+	case link.EdgeOwner:
+		m.ResetOwner()
+		return nil
+	}
+	return fmt.Errorf("unknown Link edge %s", name)
+}
+
+// UserMutation represents an operation that mutates the User nodes in the graph.
+type UserMutation struct {
+	config
+	op             Op
+	typ            string
+	id             *uuid.UUID
+	telegram_id    *int64
+	addtelegram_id *int64
+	clearedFields  map[string]struct{}
+	links          map[uuid.UUID]struct{}
+	removedlinks   map[uuid.UUID]struct{}
+	clearedlinks   bool
+	done           bool
+	oldValue       func(context.Context) (*User, error)
+	predicates     []predicate.User
+}
+
+var _ ent.Mutation = (*UserMutation)(nil)
+
+// userOption allows management of the mutation configuration using functional options.
+type userOption func(*UserMutation)
+
+// newUserMutation creates new mutation for the User entity.
+func newUserMutation(c config, op Op, opts ...userOption) *UserMutation {
+	m := &UserMutation{
+		config:        c,
+		op:            op,
+		typ:           TypeUser,
+		clearedFields: make(map[string]struct{}),
+	}
+	for _, opt := range opts {
+		opt(m)
+	}
+	return m
+}
+
+// withUserID sets the ID field of the mutation.
+func withUserID(id uuid.UUID) userOption {
+	return func(m *UserMutation) {
+		var (
+			err   error
+			once  sync.Once
+			value *User
+		)
+		m.oldValue = func(ctx context.Context) (*User, error) {
+			once.Do(func() {
+				if m.done {
+					err = errors.New("querying old values post mutation is not allowed")
+				} else {
+					value, err = m.Client().User.Get(ctx, id)
+				}
+			})
+			return value, err
+		}
+		m.id = &id
+	}
+}
+
+// withUser sets the old User of the mutation.
+func withUser(node *User) userOption {
+	return func(m *UserMutation) {
+		m.oldValue = func(context.Context) (*User, error) {
+			return node, nil
+		}
+		m.id = &node.ID
+	}
+}
+
+// Client returns a new `ent.Client` from the mutation. If the mutation was
+// executed in a transaction (ent.Tx), a transactional client is returned.
+func (m UserMutation) Client() *Client {
+	client := &Client{config: m.config}
+	client.init()
+	return client
+}
+
+// Tx returns an `ent.Tx` for mutations that were executed in transactions;
+// it returns an error otherwise.
+func (m UserMutation) Tx() (*Tx, error) {
+	if _, ok := m.driver.(*txDriver); !ok {
+		return nil, errors.New("ent: mutation is not running in a transaction")
+	}
+	tx := &Tx{config: m.config}
+	tx.init()
+	return tx, nil
+}
+
+// SetID sets the value of the id field. Note that this
+// operation is only accepted on creation of User entities.
+func (m *UserMutation) SetID(id uuid.UUID) {
+	m.id = &id
+}
+
+// ID returns the ID value in the mutation. Note that the ID is only available
+// if it was provided to the builder or after it was returned from the database.
+func (m *UserMutation) ID() (id uuid.UUID, exists bool) {
+	if m.id == nil {
+		return
+	}
+	return *m.id, true
+}
+
+// IDs queries the database and returns the entity ids that match the mutation's predicate.
+// That means, if the mutation is applied within a transaction with an isolation level such
+// as sql.LevelSerializable, the returned ids match the ids of the rows that will be updated
+// or updated by the mutation.
+func (m *UserMutation) IDs(ctx context.Context) ([]uuid.UUID, error) {
+	switch {
+	case m.op.Is(OpUpdateOne | OpDeleteOne):
+		id, exists := m.ID()
+		if exists {
+			return []uuid.UUID{id}, nil
+		}
+		fallthrough
+	case m.op.Is(OpUpdate | OpDelete):
+		return m.Client().User.Query().Where(m.predicates...).IDs(ctx)
+	default:
+		return nil, fmt.Errorf("IDs is not allowed on %s operations", m.op)
+	}
+}
+
+// SetTelegramID sets the "telegram_id" field.
+func (m *UserMutation) SetTelegramID(i int64) {
+	m.telegram_id = &i
+	m.addtelegram_id = nil
+}
+
+// TelegramID returns the value of the "telegram_id" field in the mutation.
+func (m *UserMutation) TelegramID() (r int64, exists bool) {
+	v := m.telegram_id
+	if v == nil {
+		return
+	}
+	return *v, true
+}
+
+// OldTelegramID returns the old "telegram_id" field's value of the User entity.
+// If the User object wasn't provided to the builder, the object is fetched from the database.
+// An error is returned if the mutation operation is not UpdateOne, or the database query fails.
+func (m *UserMutation) OldTelegramID(ctx context.Context) (v int64, err error) {
+	if !m.op.Is(OpUpdateOne) {
+		return v, errors.New("OldTelegramID is only allowed on UpdateOne operations")
+	}
+	if m.id == nil || m.oldValue == nil {
+		return v, errors.New("OldTelegramID requires an ID field in the mutation")
+	}
+	oldValue, err := m.oldValue(ctx)
+	if err != nil {
+		return v, fmt.Errorf("querying old value for OldTelegramID: %w", err)
+	}
+	return oldValue.TelegramID, nil
+}
+
+// AddTelegramID adds i to the "telegram_id" field.
+func (m *UserMutation) AddTelegramID(i int64) {
+	if m.addtelegram_id != nil {
+		*m.addtelegram_id += i
+	} else {
+		m.addtelegram_id = &i
+	}
+}
+
+// AddedTelegramID returns the value that was added to the "telegram_id" field in this mutation.
+func (m *UserMutation) AddedTelegramID() (r int64, exists bool) {
+	v := m.addtelegram_id
+	if v == nil {
+		return
+	}
+	return *v, true
+}
+
+// ResetTelegramID resets all changes to the "telegram_id" field.
+func (m *UserMutation) ResetTelegramID() {
+	m.telegram_id = nil
+	m.addtelegram_id = nil
+}
+
+// AddLinkIDs adds the "links" edge to the Link entity by ids.
+func (m *UserMutation) AddLinkIDs(ids ...uuid.UUID) {
+	if m.links == nil {
+		m.links = make(map[uuid.UUID]struct{})
+	}
+	for i := range ids {
+		m.links[ids[i]] = struct{}{}
+	}
+}
+
+// ClearLinks clears the "links" edge to the Link entity.
+func (m *UserMutation) ClearLinks() {
+	m.clearedlinks = true
+}
+
+// LinksCleared reports if the "links" edge to the Link entity was cleared.
+func (m *UserMutation) LinksCleared() bool {
+	return m.clearedlinks
+}
+
+// RemoveLinkIDs removes the "links" edge to the Link entity by IDs.
+func (m *UserMutation) RemoveLinkIDs(ids ...uuid.UUID) {
+	if m.removedlinks == nil {
+		m.removedlinks = make(map[uuid.UUID]struct{})
+	}
+	for i := range ids {
+		delete(m.links, ids[i])
+		m.removedlinks[ids[i]] = struct{}{}
+	}
+}
+
+// RemovedLinks returns the removed IDs of the "links" edge to the Link entity.
+func (m *UserMutation) RemovedLinksIDs() (ids []uuid.UUID) {
+	for id := range m.removedlinks {
+		ids = append(ids, id)
+	}
+	return
+}
+
+// LinksIDs returns the "links" edge IDs in the mutation.
+func (m *UserMutation) LinksIDs() (ids []uuid.UUID) {
+	for id := range m.links {
+		ids = append(ids, id)
+	}
+	return
+}
+
+// ResetLinks resets all changes to the "links" edge.
+func (m *UserMutation) ResetLinks() {
+	m.links = nil
+	m.clearedlinks = false
+	m.removedlinks = nil
+}
+
+// Where appends a list predicates to the UserMutation builder.
+func (m *UserMutation) Where(ps ...predicate.User) {
+	m.predicates = append(m.predicates, ps...)
+}
+
+// WhereP appends storage-level predicates to the UserMutation builder. Using this method,
+// users can use type-assertion to append predicates that do not depend on any generated package.
+func (m *UserMutation) WhereP(ps ...func(*sql.Selector)) {
+	p := make([]predicate.User, len(ps))
+	for i := range ps {
+		p[i] = ps[i]
+	}
+	m.Where(p...)
+}
+
+// Op returns the operation name.
+func (m *UserMutation) Op() Op {
+	return m.op
+}
+
+// SetOp allows setting the mutation operation.
+func (m *UserMutation) SetOp(op Op) {
+	m.op = op
+}
+
+// Type returns the node type of this mutation (User).
+func (m *UserMutation) Type() string {
+	return m.typ
+}
+
+// Fields returns all fields that were changed during this mutation. Note that in
+// order to get all numeric fields that were incremented/decremented, call
+// AddedFields().
+func (m *UserMutation) Fields() []string {
+	fields := make([]string, 0, 1)
+	if m.telegram_id != nil {
+		fields = append(fields, user.FieldTelegramID)
+	}
+	return fields
+}
+
+// Field returns the value of a field with the given name. The second boolean
+// return value indicates that this field was not set, or was not defined in the
+// schema.
+func (m *UserMutation) Field(name string) (ent.Value, bool) {
+	switch name {
+	case user.FieldTelegramID:
+		return m.TelegramID()
+	}
+	return nil, false
+}
+
+// OldField returns the old value of the field from the database. An error is
+// returned if the mutation operation is not UpdateOne, or the query to the
+// database failed.
+func (m *UserMutation) OldField(ctx context.Context, name string) (ent.Value, error) {
+	switch name {
+	case user.FieldTelegramID:
+		return m.OldTelegramID(ctx)
+	}
+	return nil, fmt.Errorf("unknown User field %s", name)
+}
+
+// SetField sets the value of a field with the given name. It returns an error if
+// the field is not defined in the schema, or if the type mismatched the field
+// type.
+func (m *UserMutation) SetField(name string, value ent.Value) error {
+	switch name {
+	case user.FieldTelegramID:
+		v, ok := value.(int64)
+		if !ok {
+			return fmt.Errorf("unexpected type %T for field %s", value, name)
+		}
+		m.SetTelegramID(v)
+		return nil
+	}
+	return fmt.Errorf("unknown User field %s", name)
+}
+
+// AddedFields returns all numeric fields that were incremented/decremented during
+// this mutation.
+func (m *UserMutation) AddedFields() []string {
+	var fields []string
+	if m.addtelegram_id != nil {
+		fields = append(fields, user.FieldTelegramID)
+	}
+	return fields
+}
+
+// AddedField returns the numeric value that was incremented/decremented on a field
+// with the given name. The second boolean return value indicates that this field
+// was not set, or was not defined in the schema.
+func (m *UserMutation) AddedField(name string) (ent.Value, bool) {
+	switch name {
+	case user.FieldTelegramID:
+		return m.AddedTelegramID()
+	}
+	return nil, false
+}
+
+// AddField adds the value to the field with the given name. It returns an error if
+// the field is not defined in the schema, or if the type mismatched the field
+// type.
+func (m *UserMutation) AddField(name string, value ent.Value) error {
+	switch name {
+	case user.FieldTelegramID:
+		v, ok := value.(int64)
+		if !ok {
+			return fmt.Errorf("unexpected type %T for field %s", value, name)
+		}
+		m.AddTelegramID(v)
+		return nil
+	}
+	return fmt.Errorf("unknown User numeric field %s", name)
+}
+
+// ClearedFields returns all nullable fields that were cleared during this
+// mutation.
+func (m *UserMutation) ClearedFields() []string {
+	return nil
+}
+
+// FieldCleared returns a boolean indicating if a field with the given name was
+// cleared in this mutation.
+func (m *UserMutation) FieldCleared(name string) bool {
+	_, ok := m.clearedFields[name]
+	return ok
+}
+
+// ClearField clears the value of the field with the given name. It returns an
+// error if the field is not defined in the schema.
+func (m *UserMutation) ClearField(name string) error {
+	return fmt.Errorf("unknown User nullable field %s", name)
+}
+
+// ResetField resets all changes in the mutation for the field with the given name.
+// It returns an error if the field is not defined in the schema.
+func (m *UserMutation) ResetField(name string) error {
+	switch name {
+	case user.FieldTelegramID:
+		m.ResetTelegramID()
+		return nil
+	}
+	return fmt.Errorf("unknown User field %s", name)
+}
+
+// AddedEdges returns all edge names that were set/added in this mutation.
+func (m *UserMutation) AddedEdges() []string {
+	edges := make([]string, 0, 1)
+	if m.links != nil {
+		edges = append(edges, user.EdgeLinks)
+	}
+	return edges
+}
+
+// AddedIDs returns all IDs (to other nodes) that were added for the given edge
+// name in this mutation.
+func (m *UserMutation) AddedIDs(name string) []ent.Value {
+	switch name {
+	case user.EdgeLinks:
+		ids := make([]ent.Value, 0, len(m.links))
+		for id := range m.links {
+			ids = append(ids, id)
+		}
+		return ids
+	}
+	return nil
+}
+
+// RemovedEdges returns all edge names that were removed in this mutation.
+func (m *UserMutation) RemovedEdges() []string {
+	edges := make([]string, 0, 1)
+	if m.removedlinks != nil {
+		edges = append(edges, user.EdgeLinks)
+	}
+	return edges
+}
+
+// RemovedIDs returns all IDs (to other nodes) that were removed for the edge with
+// the given name in this mutation.
+func (m *UserMutation) RemovedIDs(name string) []ent.Value {
+	switch name {
+	case user.EdgeLinks:
+		ids := make([]ent.Value, 0, len(m.removedlinks))
+		for id := range m.removedlinks {
+			ids = append(ids, id)
+		}
+		return ids
+	}
+	return nil
+}
+
+// ClearedEdges returns all edge names that were cleared in this mutation.
+func (m *UserMutation) ClearedEdges() []string {
+	edges := make([]string, 0, 1)
+	if m.clearedlinks {
+		edges = append(edges, user.EdgeLinks)
+	}
+	return edges
+}
+
+// EdgeCleared returns a boolean which indicates if the edge with the given name
+// was cleared in this mutation.
+func (m *UserMutation) EdgeCleared(name string) bool {
+	switch name {
+	case user.EdgeLinks:
+		return m.clearedlinks
+	}
+	return false
+}
+
+// ClearEdge clears the value of the edge with the given name. It returns an error
+// if that edge is not defined in the schema.
+func (m *UserMutation) ClearEdge(name string) error {
+	switch name {
+	}
+	return fmt.Errorf("unknown User unique edge %s", name)
+}
+
+// ResetEdge resets all changes to the edge with the given name in this mutation.
+// It returns an error if the edge is not defined in the schema.
+func (m *UserMutation) ResetEdge(name string) error {
+	switch name {
+	case user.EdgeLinks:
+		m.ResetLinks()
+		return nil
+	}
+	return fmt.Errorf("unknown User edge %s", name)
+}

ent/predicate/predicate.go

@@ -0,0 +1,13 @@
+// Code generated by ent, DO NOT EDIT.
+
+package predicate
+
+import (
+	"entgo.io/ent/dialect/sql"
+)
+
+// Link is the predicate function for link builders.
+type Link func(*sql.Selector)
+
+// User is the predicate function for user builders.
+type User func(*sql.Selector)

ent/runtime.go

@@ -0,0 +1,32 @@
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"code.gurenya.net/carlsmei/muninn-aio/ent/link"
+	"code.gurenya.net/carlsmei/muninn-aio/ent/schema"
+	"code.gurenya.net/carlsmei/muninn-aio/ent/user"
+	"github.com/google/uuid"
+)
+
+// The init function reads all schema descriptors with runtime code
+// (default values, validators, hooks and policies) and stitches it
+// to their package variables.
+func init() {
+	linkFields := schema.Link{}.Fields()
+	_ = linkFields
+	// linkDescOriginalURL is the schema descriptor for original_url field.
+	linkDescOriginalURL := linkFields[2].Descriptor()
+	// link.OriginalURLValidator is a validator for the "original_url" field. It is called by the builders before save.
+	link.OriginalURLValidator = linkDescOriginalURL.Validators[0].(func(string) error)
+	// linkDescID is the schema descriptor for id field.
+	linkDescID := linkFields[0].Descriptor()
+	// link.DefaultID holds the default value on creation for the id field.
+	link.DefaultID = linkDescID.Default.(func() uuid.UUID)
+	userFields := schema.User{}.Fields()
+	_ = userFields
+	// userDescID is the schema descriptor for id field.
+	userDescID := userFields[0].Descriptor()
+	// user.DefaultID holds the default value on creation for the id field.
+	user.DefaultID = userDescID.Default.(func() uuid.UUID)
+}

ent/runtime/runtime.go

@@ -0,0 +1,10 @@
+// Code generated by ent, DO NOT EDIT.
+
+package runtime
+
+// The schema-stitching logic is generated in code.gurenya.net/carlsmei/muninn-aio/ent/runtime.go
+
+const (
+	Version = "v0.14.0"                                         // Version of ent codegen.
+	Sum     = "h1:EO3Z9aZ5bXJatJeGqu/EVdnNr6K4mRq3rWe5owt0MC4=" // Sum of ent codegen.
+)

ent/schema/link.go

@@ -0,0 +1,44 @@
+package schema
+
+import (
+	"entgo.io/ent"
+	"entgo.io/ent/schema/edge"
+	"entgo.io/ent/schema/field"
+	"entgo.io/ent/schema/index"
+	"github.com/google/uuid"
+)
+
+// URL holds the schema definition for the URL entity.
+type Link struct {
+	ent.Schema
+}
+
+// Fields of the URL.
+func (Link) Fields() []ent.Field {
+	return []ent.Field{
+		field.UUID("id", uuid.UUID{}).
+			Default(uuid.New).
+			Unique().
+			Immutable(),
+		field.String("key").
+			Unique(),
+		field.String("original_url").
+			NotEmpty(),
+	}
+}
+
+func (Link) Indexes() []ent.Index {
+	return []ent.Index{
+		index.Fields("key").
+			Unique(),
+	}
+}
+
+// Edges of the URL.
+func (Link) Edges() []ent.Edge {
+	return []ent.Edge{
+		edge.From("owner", User.Type).
+			Required().
+			Ref("links"),
+	}
+}

ent/schema/user.go

@@ -0,0 +1,33 @@
+package schema
+
+import (
+	"entgo.io/ent"
+	"entgo.io/ent/schema/edge"
+	"entgo.io/ent/schema/field"
+	"github.com/google/uuid"
+)
+
+// User holds the schema definition for the User entity.
+type User struct {
+	ent.Schema
+}
+
+// Fields of the User.
+func (User) Fields() []ent.Field {
+	return []ent.Field{
+		field.UUID("id", uuid.UUID{}).
+			Default(uuid.New).
+			Unique().
+			Immutable(),
+		field.Int64("telegram_id").
+			Immutable().
+			Unique(),
+	}
+}
+
+// Edges of the User.
+func (User) Edges() []ent.Edge {
+	return []ent.Edge{
+		edge.To("links", Link.Type),
+	}
+}

ent/tx.go

@@ -0,0 +1,213 @@
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+	"sync"
+
+	"entgo.io/ent/dialect"
+)
+
+// Tx is a transactional client that is created by calling Client.Tx().
+type Tx struct {
+	config
+	// Link is the client for interacting with the Link builders.
+	Link *LinkClient
+	// User is the client for interacting with the User builders.
+	User *UserClient
+
+	// lazily loaded.
+	client     *Client
+	clientOnce sync.Once
+	// ctx lives for the life of the transaction. It is
+	// the same context used by the underlying connection.
+	ctx context.Context
+}
+
+type (
+	// Committer is the interface that wraps the Commit method.
+	Committer interface {
+		Commit(context.Context, *Tx) error
+	}
+
+	// The CommitFunc type is an adapter to allow the use of ordinary
+	// function as a Committer. If f is a function with the appropriate
+	// signature, CommitFunc(f) is a Committer that calls f.
+	CommitFunc func(context.Context, *Tx) error
+
+	// CommitHook defines the "commit middleware". A function that gets a Committer
+	// and returns a Committer. For example:
+	//
+	//	hook := func(next ent.Committer) ent.Committer {
+	//		return ent.CommitFunc(func(ctx context.Context, tx *ent.Tx) error {
+	//			// Do some stuff before.
+	//			if err := next.Commit(ctx, tx); err != nil {
+	//				return err
+	//			}
+	//			// Do some stuff after.
+	//			return nil
+	//		})
+	//	}
+	//
+	CommitHook func(Committer) Committer
+)
+
+// Commit calls f(ctx, m).
+func (f CommitFunc) Commit(ctx context.Context, tx *Tx) error {
+	return f(ctx, tx)
+}
+
+// Commit commits the transaction.
+func (tx *Tx) Commit() error {
+	txDriver := tx.config.driver.(*txDriver)
+	var fn Committer = CommitFunc(func(context.Context, *Tx) error {
+		return txDriver.tx.Commit()
+	})
+	txDriver.mu.Lock()
+	hooks := append([]CommitHook(nil), txDriver.onCommit...)
+	txDriver.mu.Unlock()
+	for i := len(hooks) - 1; i >= 0; i-- {
+		fn = hooks[i](fn)
+	}
+	return fn.Commit(tx.ctx, tx)
+}
+
+// OnCommit adds a hook to call on commit.
+func (tx *Tx) OnCommit(f CommitHook) {
+	txDriver := tx.config.driver.(*txDriver)
+	txDriver.mu.Lock()
+	txDriver.onCommit = append(txDriver.onCommit, f)
+	txDriver.mu.Unlock()
+}
+
+type (
+	// Rollbacker is the interface that wraps the Rollback method.
+	Rollbacker interface {
+		Rollback(context.Context, *Tx) error
+	}
+
+	// The RollbackFunc type is an adapter to allow the use of ordinary
+	// function as a Rollbacker. If f is a function with the appropriate
+	// signature, RollbackFunc(f) is a Rollbacker that calls f.
+	RollbackFunc func(context.Context, *Tx) error
+
+	// RollbackHook defines the "rollback middleware". A function that gets a Rollbacker
+	// and returns a Rollbacker. For example:
+	//
+	//	hook := func(next ent.Rollbacker) ent.Rollbacker {
+	//		return ent.RollbackFunc(func(ctx context.Context, tx *ent.Tx) error {
+	//			// Do some stuff before.
+	//			if err := next.Rollback(ctx, tx); err != nil {
+	//				return err
+	//			}
+	//			// Do some stuff after.
+	//			return nil
+	//		})
+	//	}
+	//
+	RollbackHook func(Rollbacker) Rollbacker
+)
+
+// Rollback calls f(ctx, m).
+func (f RollbackFunc) Rollback(ctx context.Context, tx *Tx) error {
+	return f(ctx, tx)
+}
+
+// Rollback rollbacks the transaction.
+func (tx *Tx) Rollback() error {
+	txDriver := tx.config.driver.(*txDriver)
+	var fn Rollbacker = RollbackFunc(func(context.Context, *Tx) error {
+		return txDriver.tx.Rollback()
+	})
+	txDriver.mu.Lock()
+	hooks := append([]RollbackHook(nil), txDriver.onRollback...)
+	txDriver.mu.Unlock()
+	for i := len(hooks) - 1; i >= 0; i-- {
+		fn = hooks[i](fn)
+	}
+	return fn.Rollback(tx.ctx, tx)
+}
+
+// OnRollback adds a hook to call on rollback.
+func (tx *Tx) OnRollback(f RollbackHook) {
+	txDriver := tx.config.driver.(*txDriver)
+	txDriver.mu.Lock()
+	txDriver.onRollback = append(txDriver.onRollback, f)
+	txDriver.mu.Unlock()
+}
+
+// Client returns a Client that binds to current transaction.
+func (tx *Tx) Client() *Client {
+	tx.clientOnce.Do(func() {
+		tx.client = &Client{config: tx.config}
+		tx.client.init()
+	})
+	return tx.client
+}
+
+func (tx *Tx) init() {
+	tx.Link = NewLinkClient(tx.config)
+	tx.User = NewUserClient(tx.config)
+}
+
+// txDriver wraps the given dialect.Tx with a nop dialect.Driver implementation.
+// The idea is to support transactions without adding any extra code to the builders.
+// When a builder calls to driver.Tx(), it gets the same dialect.Tx instance.
+// Commit and Rollback are nop for the internal builders and the user must call one
+// of them in order to commit or rollback the transaction.
+//
+// If a closed transaction is embedded in one of the generated entities, and the entity
+// applies a query, for example: Link.QueryXXX(), the query will be executed
+// through the driver which created this transaction.
+//
+// Note that txDriver is not goroutine safe.
+type txDriver struct {
+	// the driver we started the transaction from.
+	drv dialect.Driver
+	// tx is the underlying transaction.
+	tx dialect.Tx
+	// completion hooks.
+	mu         sync.Mutex
+	onCommit   []CommitHook
+	onRollback []RollbackHook
+}
+
+// newTx creates a new transactional driver.
+func newTx(ctx context.Context, drv dialect.Driver) (*txDriver, error) {
+	tx, err := drv.Tx(ctx)
+	if err != nil {
+		return nil, err
+	}
+	return &txDriver{tx: tx, drv: drv}, nil
+}
+
+// Tx returns the transaction wrapper (txDriver) to avoid Commit or Rollback calls
+// from the internal builders. Should be called only by the internal builders.
+func (tx *txDriver) Tx(context.Context) (dialect.Tx, error) { return tx, nil }
+
+// Dialect returns the dialect of the driver we started the transaction from.
+func (tx *txDriver) Dialect() string { return tx.drv.Dialect() }
+
+// Close is a nop close.
+func (*txDriver) Close() error { return nil }
+
+// Commit is a nop commit for the internal builders.
+// User must call `Tx.Commit` in order to commit the transaction.
+func (*txDriver) Commit() error { return nil }
+
+// Rollback is a nop rollback for the internal builders.
+// User must call `Tx.Rollback` in order to rollback the transaction.
+func (*txDriver) Rollback() error { return nil }
+
+// Exec calls tx.Exec.
+func (tx *txDriver) Exec(ctx context.Context, query string, args, v any) error {
+	return tx.tx.Exec(ctx, query, args, v)
+}
+
+// Query calls tx.Query.
+func (tx *txDriver) Query(ctx context.Context, query string, args, v any) error {
+	return tx.tx.Query(ctx, query, args, v)
+}
+
+var _ dialect.Driver = (*txDriver)(nil)

ent/user.go

@@ -0,0 +1,130 @@
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"fmt"
+	"strings"
+
+	"code.gurenya.net/carlsmei/muninn-aio/ent/user"
+	"entgo.io/ent"
+	"entgo.io/ent/dialect/sql"
+	"github.com/google/uuid"
+)
+
+// User is the model entity for the User schema.
+type User struct {
+	config `json:"-"`
+	// ID of the ent.
+	ID uuid.UUID `json:"id,omitempty"`
+	// TelegramID holds the value of the "telegram_id" field.
+	TelegramID int64 `json:"telegram_id,omitempty"`
+	// Edges holds the relations/edges for other nodes in the graph.
+	// The values are being populated by the UserQuery when eager-loading is set.
+	Edges        UserEdges `json:"edges"`
+	selectValues sql.SelectValues
+}
+
+// UserEdges holds the relations/edges for other nodes in the graph.
+type UserEdges struct {
+	// Links holds the value of the links edge.
+	Links []*Link `json:"links,omitempty"`
+	// loadedTypes holds the information for reporting if a
+	// type was loaded (or requested) in eager-loading or not.
+	loadedTypes [1]bool
+}
+
+// LinksOrErr returns the Links value or an error if the edge
+// was not loaded in eager-loading.
+func (e UserEdges) LinksOrErr() ([]*Link, error) {
+	if e.loadedTypes[0] {
+		return e.Links, nil
+	}
+	return nil, &NotLoadedError{edge: "links"}
+}
+
+// scanValues returns the types for scanning values from sql.Rows.
+func (*User) scanValues(columns []string) ([]any, error) {
+	values := make([]any, len(columns))
+	for i := range columns {
+		switch columns[i] {
+		case user.FieldTelegramID:
+			values[i] = new(sql.NullInt64)
+		case user.FieldID:
+			values[i] = new(uuid.UUID)
+		default:
+			values[i] = new(sql.UnknownType)
+		}
+	}
+	return values, nil
+}
+
+// assignValues assigns the values that were returned from sql.Rows (after scanning)
+// to the User fields.
+func (u *User) assignValues(columns []string, values []any) error {
+	if m, n := len(values), len(columns); m < n {
+		return fmt.Errorf("mismatch number of scan values: %d != %d", m, n)
+	}
+	for i := range columns {
+		switch columns[i] {
+		case user.FieldID:
+			if value, ok := values[i].(*uuid.UUID); !ok {
+				return fmt.Errorf("unexpected type %T for field id", values[i])
+			} else if value != nil {
+				u.ID = *value
+			}
+		case user.FieldTelegramID:
+			if value, ok := values[i].(*sql.NullInt64); !ok {
+				return fmt.Errorf("unexpected type %T for field telegram_id", values[i])
+			} else if value.Valid {
+				u.TelegramID = value.Int64
+			}
+		default:
+			u.selectValues.Set(columns[i], values[i])
+		}
+	}
+	return nil
+}
+
+// Value returns the ent.Value that was dynamically selected and assigned to the User.
+// This includes values selected through modifiers, order, etc.
+func (u *User) Value(name string) (ent.Value, error) {
+	return u.selectValues.Get(name)
+}
+
+// QueryLinks queries the "links" edge of the User entity.
+func (u *User) QueryLinks() *LinkQuery {
+	return NewUserClient(u.config).QueryLinks(u)
+}
+
+// Update returns a builder for updating this User.
+// Note that you need to call User.Unwrap() before calling this method if this User
+// was returned from a transaction, and the transaction was committed or rolled back.
+func (u *User) Update() *UserUpdateOne {
+	return NewUserClient(u.config).UpdateOne(u)
+}
+
+// Unwrap unwraps the User entity that was returned from a transaction after it was closed,
+// so that all future queries will be executed through the driver which created the transaction.
+func (u *User) Unwrap() *User {
+	_tx, ok := u.config.driver.(*txDriver)
+	if !ok {
+		panic("ent: User is not a transactional entity")
+	}
+	u.config.driver = _tx.drv
+	return u
+}
+
+// String implements the fmt.Stringer.
+func (u *User) String() string {
+	var builder strings.Builder
+	builder.WriteString("User(")
+	builder.WriteString(fmt.Sprintf("id=%v, ", u.ID))
+	builder.WriteString("telegram_id=")
+	builder.WriteString(fmt.Sprintf("%v", u.TelegramID))
+	builder.WriteByte(')')
+	return builder.String()
+}
+
+// Users is a parsable slice of User.
+type Users []*User

ent/user/user.go

@@ -0,0 +1,88 @@
+// Code generated by ent, DO NOT EDIT.
+
+package user
+
+import (
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"github.com/google/uuid"
+)
+
+const (
+	// Label holds the string label denoting the user type in the database.
+	Label = "user"
+	// FieldID holds the string denoting the id field in the database.
+	FieldID = "id"
+	// FieldTelegramID holds the string denoting the telegram_id field in the database.
+	FieldTelegramID = "telegram_id"
+	// EdgeLinks holds the string denoting the links edge name in mutations.
+	EdgeLinks = "links"
+	// Table holds the table name of the user in the database.
+	Table = "users"
+	// LinksTable is the table that holds the links relation/edge. The primary key declared below.
+	LinksTable = "user_links"
+	// LinksInverseTable is the table name for the Link entity.
+	// It exists in this package in order to avoid circular dependency with the "link" package.
+	LinksInverseTable = "links"
+)
+
+// Columns holds all SQL columns for user fields.
+var Columns = []string{
+	FieldID,
+	FieldTelegramID,
+}
+
+var (
+	// LinksPrimaryKey and LinksColumn2 are the table columns denoting the
+	// primary key for the links relation (M2M).
+	LinksPrimaryKey = []string{"user_id", "link_id"}
+)
+
+// ValidColumn reports if the column name is valid (part of the table columns).
+func ValidColumn(column string) bool {
+	for i := range Columns {
+		if column == Columns[i] {
+			return true
+		}
+	}
+	return false
+}
+
+var (
+	// DefaultID holds the default value on creation for the "id" field.
+	DefaultID func() uuid.UUID
+)
+
+// OrderOption defines the ordering options for the User queries.
+type OrderOption func(*sql.Selector)
+
+// ByID orders the results by the id field.
+func ByID(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldID, opts...).ToFunc()
+}
+
+// ByTelegramID orders the results by the telegram_id field.
+func ByTelegramID(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldTelegramID, opts...).ToFunc()
+}
+
+// ByLinksCount orders the results by links count.
+func ByLinksCount(opts ...sql.OrderTermOption) OrderOption {
+	return func(s *sql.Selector) {
+		sqlgraph.OrderByNeighborsCount(s, newLinksStep(), opts...)
+	}
+}
+
+// ByLinks orders the results by links terms.
+func ByLinks(term sql.OrderTerm, terms ...sql.OrderTerm) OrderOption {
+	return func(s *sql.Selector) {
+		sqlgraph.OrderByNeighborTerms(s, newLinksStep(), append([]sql.OrderTerm{term}, terms...)...)
+	}
+}
+func newLinksStep() *sqlgraph.Step {
+	return sqlgraph.NewStep(
+		sqlgraph.From(Table, FieldID),
+		sqlgraph.To(LinksInverseTable, FieldID),
+		sqlgraph.Edge(sqlgraph.M2M, false, LinksTable, LinksPrimaryKey...),
+	)
+}

ent/user/where.go

@@ -0,0 +1,138 @@
+// Code generated by ent, DO NOT EDIT.
+
+package user
+
+import (
+	"code.gurenya.net/carlsmei/muninn-aio/ent/predicate"
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"github.com/google/uuid"
+)
+
+// ID filters vertices based on their ID field.
+func ID(id uuid.UUID) predicate.User {
+	return predicate.User(sql.FieldEQ(FieldID, id))
+}
+
+// IDEQ applies the EQ predicate on the ID field.
+func IDEQ(id uuid.UUID) predicate.User {
+	return predicate.User(sql.FieldEQ(FieldID, id))
+}
+
+// IDNEQ applies the NEQ predicate on the ID field.
+func IDNEQ(id uuid.UUID) predicate.User {
+	return predicate.User(sql.FieldNEQ(FieldID, id))
+}
+
+// IDIn applies the In predicate on the ID field.
+func IDIn(ids ...uuid.UUID) predicate.User {
+	return predicate.User(sql.FieldIn(FieldID, ids...))
+}
+
+// IDNotIn applies the NotIn predicate on the ID field.
+func IDNotIn(ids ...uuid.UUID) predicate.User {
+	return predicate.User(sql.FieldNotIn(FieldID, ids...))
+}
+
+// IDGT applies the GT predicate on the ID field.
+func IDGT(id uuid.UUID) predicate.User {
+	return predicate.User(sql.FieldGT(FieldID, id))
+}
+
+// IDGTE applies the GTE predicate on the ID field.
+func IDGTE(id uuid.UUID) predicate.User {
+	return predicate.User(sql.FieldGTE(FieldID, id))
+}
+
+// IDLT applies the LT predicate on the ID field.
+func IDLT(id uuid.UUID) predicate.User {
+	return predicate.User(sql.FieldLT(FieldID, id))
+}
+
+// IDLTE applies the LTE predicate on the ID field.
+func IDLTE(id uuid.UUID) predicate.User {
+	return predicate.User(sql.FieldLTE(FieldID, id))
+}
+
+// TelegramID applies equality check predicate on the "telegram_id" field. It's identical to TelegramIDEQ.
+func TelegramID(v int64) predicate.User {
+	return predicate.User(sql.FieldEQ(FieldTelegramID, v))
+}
+
+// TelegramIDEQ applies the EQ predicate on the "telegram_id" field.
+func TelegramIDEQ(v int64) predicate.User {
+	return predicate.User(sql.FieldEQ(FieldTelegramID, v))
+}
+
+// TelegramIDNEQ applies the NEQ predicate on the "telegram_id" field.
+func TelegramIDNEQ(v int64) predicate.User {
+	return predicate.User(sql.FieldNEQ(FieldTelegramID, v))
+}
+
+// TelegramIDIn applies the In predicate on the "telegram_id" field.
+func TelegramIDIn(vs ...int64) predicate.User {
+	return predicate.User(sql.FieldIn(FieldTelegramID, vs...))
+}
+
+// TelegramIDNotIn applies the NotIn predicate on the "telegram_id" field.
+func TelegramIDNotIn(vs ...int64) predicate.User {
+	return predicate.User(sql.FieldNotIn(FieldTelegramID, vs...))
+}
+
+// TelegramIDGT applies the GT predicate on the "telegram_id" field.
+func TelegramIDGT(v int64) predicate.User {
+	return predicate.User(sql.FieldGT(FieldTelegramID, v))
+}
+
+// TelegramIDGTE applies the GTE predicate on the "telegram_id" field.
+func TelegramIDGTE(v int64) predicate.User {
+	return predicate.User(sql.FieldGTE(FieldTelegramID, v))
+}
+
+// TelegramIDLT applies the LT predicate on the "telegram_id" field.
+func TelegramIDLT(v int64) predicate.User {
+	return predicate.User(sql.FieldLT(FieldTelegramID, v))
+}
+
+// TelegramIDLTE applies the LTE predicate on the "telegram_id" field.
+func TelegramIDLTE(v int64) predicate.User {
+	return predicate.User(sql.FieldLTE(FieldTelegramID, v))
+}
+
+// HasLinks applies the HasEdge predicate on the "links" edge.
+func HasLinks() predicate.User {
+	return predicate.User(func(s *sql.Selector) {
+		step := sqlgraph.NewStep(
+			sqlgraph.From(Table, FieldID),
+			sqlgraph.Edge(sqlgraph.M2M, false, LinksTable, LinksPrimaryKey...),
+		)
+		sqlgraph.HasNeighbors(s, step)
+	})
+}
+
+// HasLinksWith applies the HasEdge predicate on the "links" edge with a given conditions (other predicates).
+func HasLinksWith(preds ...predicate.Link) predicate.User {
+	return predicate.User(func(s *sql.Selector) {
+		step := newLinksStep()
+		sqlgraph.HasNeighborsWith(s, step, func(s *sql.Selector) {
+			for _, p := range preds {
+				p(s)
+			}
+		})
+	})
+}
+
+// And groups predicates with the AND operator between them.
+func And(predicates ...predicate.User) predicate.User {
+	return predicate.User(sql.AndPredicates(predicates...))
+}
+
+// Or groups predicates with the OR operator between them.
+func Or(predicates ...predicate.User) predicate.User {
+	return predicate.User(sql.OrPredicates(predicates...))
+}
+
+// Not applies the not operator on the given predicate.
+func Not(p predicate.User) predicate.User {
+	return predicate.User(sql.NotPredicates(p))
+}

ent/user_create.go

@@ -0,0 +1,245 @@
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+	"errors"
+	"fmt"
+
+	"code.gurenya.net/carlsmei/muninn-aio/ent/link"
+	"code.gurenya.net/carlsmei/muninn-aio/ent/user"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"entgo.io/ent/schema/field"
+	"github.com/google/uuid"
+)
+
+// UserCreate is the builder for creating a User entity.
+type UserCreate struct {
+	config
+	mutation *UserMutation
+	hooks    []Hook
+}
+
+// SetTelegramID sets the "telegram_id" field.
+func (uc *UserCreate) SetTelegramID(i int64) *UserCreate {
+	uc.mutation.SetTelegramID(i)
+	return uc
+}
+
+// SetID sets the "id" field.
+func (uc *UserCreate) SetID(u uuid.UUID) *UserCreate {
+	uc.mutation.SetID(u)
+	return uc
+}
+
+// SetNillableID sets the "id" field if the given value is not nil.
+func (uc *UserCreate) SetNillableID(u *uuid.UUID) *UserCreate {
+	if u != nil {
+		uc.SetID(*u)
+	}
+	return uc
+}
+
+// AddLinkIDs adds the "links" edge to the Link entity by IDs.
+func (uc *UserCreate) AddLinkIDs(ids ...uuid.UUID) *UserCreate {
+	uc.mutation.AddLinkIDs(ids...)
+	return uc
+}
+
+// AddLinks adds the "links" edges to the Link entity.
+func (uc *UserCreate) AddLinks(l ...*Link) *UserCreate {
+	ids := make([]uuid.UUID, len(l))
+	for i := range l {
+		ids[i] = l[i].ID
+	}
+	return uc.AddLinkIDs(ids...)
+}
+
+// Mutation returns the UserMutation object of the builder.
+func (uc *UserCreate) Mutation() *UserMutation {
+	return uc.mutation
+}
+
+// Save creates the User in the database.
+func (uc *UserCreate) Save(ctx context.Context) (*User, error) {
+	uc.defaults()
+	return withHooks(ctx, uc.sqlSave, uc.mutation, uc.hooks)
+}
+
+// SaveX calls Save and panics if Save returns an error.
+func (uc *UserCreate) SaveX(ctx context.Context) *User {
+	v, err := uc.Save(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+// Exec executes the query.
+func (uc *UserCreate) Exec(ctx context.Context) error {
+	_, err := uc.Save(ctx)
+	return err
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (uc *UserCreate) ExecX(ctx context.Context) {
+	if err := uc.Exec(ctx); err != nil {
+		panic(err)
+	}
+}
+
+// defaults sets the default values of the builder before save.
+func (uc *UserCreate) defaults() {
+	if _, ok := uc.mutation.ID(); !ok {
+		v := user.DefaultID()
+		uc.mutation.SetID(v)
+	}
+}
+
+// check runs all checks and user-defined validators on the builder.
+func (uc *UserCreate) check() error {
+	if _, ok := uc.mutation.TelegramID(); !ok {
+		return &ValidationError{Name: "telegram_id", err: errors.New(`ent: missing required field "User.telegram_id"`)}
+	}
+	return nil
+}
+
+func (uc *UserCreate) sqlSave(ctx context.Context) (*User, error) {
+	if err := uc.check(); err != nil {
+		return nil, err
+	}
+	_node, _spec := uc.createSpec()
+	if err := sqlgraph.CreateNode(ctx, uc.driver, _spec); err != nil {
+		if sqlgraph.IsConstraintError(err) {
+			err = &ConstraintError{msg: err.Error(), wrap: err}
+		}
+		return nil, err
+	}
+	if _spec.ID.Value != nil {
+		if id, ok := _spec.ID.Value.(*uuid.UUID); ok {
+			_node.ID = *id
+		} else if err := _node.ID.Scan(_spec.ID.Value); err != nil {
+			return nil, err
+		}
+	}
+	uc.mutation.id = &_node.ID
+	uc.mutation.done = true
+	return _node, nil
+}
+
+func (uc *UserCreate) createSpec() (*User, *sqlgraph.CreateSpec) {
+	var (
+		_node = &User{config: uc.config}
+		_spec = sqlgraph.NewCreateSpec(user.Table, sqlgraph.NewFieldSpec(user.FieldID, field.TypeUUID))
+	)
+	if id, ok := uc.mutation.ID(); ok {
+		_node.ID = id
+		_spec.ID.Value = &id
+	}
+	if value, ok := uc.mutation.TelegramID(); ok {
+		_spec.SetField(user.FieldTelegramID, field.TypeInt64, value)
+		_node.TelegramID = value
+	}
+	if nodes := uc.mutation.LinksIDs(); len(nodes) > 0 {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.M2M,
+			Inverse: false,
+			Table:   user.LinksTable,
+			Columns: user.LinksPrimaryKey,
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(link.FieldID, field.TypeUUID),
+			},
+		}
+		for _, k := range nodes {
+			edge.Target.Nodes = append(edge.Target.Nodes, k)
+		}
+		_spec.Edges = append(_spec.Edges, edge)
+	}
+	return _node, _spec
+}
+
+// UserCreateBulk is the builder for creating many User entities in bulk.
+type UserCreateBulk struct {
+	config
+	err      error
+	builders []*UserCreate
+}
+
+// Save creates the User entities in the database.
+func (ucb *UserCreateBulk) Save(ctx context.Context) ([]*User, error) {
+	if ucb.err != nil {
+		return nil, ucb.err
+	}
+	specs := make([]*sqlgraph.CreateSpec, len(ucb.builders))
+	nodes := make([]*User, len(ucb.builders))
+	mutators := make([]Mutator, len(ucb.builders))
+	for i := range ucb.builders {
+		func(i int, root context.Context) {
+			builder := ucb.builders[i]
+			builder.defaults()
+			var mut Mutator = MutateFunc(func(ctx context.Context, m Mutation) (Value, error) {
+				mutation, ok := m.(*UserMutation)
+				if !ok {
+					return nil, fmt.Errorf("unexpected mutation type %T", m)
+				}
+				if err := builder.check(); err != nil {
+					return nil, err
+				}
+				builder.mutation = mutation
+				var err error
+				nodes[i], specs[i] = builder.createSpec()
+				if i < len(mutators)-1 {
+					_, err = mutators[i+1].Mutate(root, ucb.builders[i+1].mutation)
+				} else {
+					spec := &sqlgraph.BatchCreateSpec{Nodes: specs}
+					// Invoke the actual operation on the latest mutation in the chain.
+					if err = sqlgraph.BatchCreate(ctx, ucb.driver, spec); err != nil {
+						if sqlgraph.IsConstraintError(err) {
+							err = &ConstraintError{msg: err.Error(), wrap: err}
+						}
+					}
+				}
+				if err != nil {
+					return nil, err
+				}
+				mutation.id = &nodes[i].ID
+				mutation.done = true
+				return nodes[i], nil
+			})
+			for i := len(builder.hooks) - 1; i >= 0; i-- {
+				mut = builder.hooks[i](mut)
+			}
+			mutators[i] = mut
+		}(i, ctx)
+	}
+	if len(mutators) > 0 {
+		if _, err := mutators[0].Mutate(ctx, ucb.builders[0].mutation); err != nil {
+			return nil, err
+		}
+	}
+	return nodes, nil
+}
+
+// SaveX is like Save, but panics if an error occurs.
+func (ucb *UserCreateBulk) SaveX(ctx context.Context) []*User {
+	v, err := ucb.Save(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+// Exec executes the query.
+func (ucb *UserCreateBulk) Exec(ctx context.Context) error {
+	_, err := ucb.Save(ctx)
+	return err
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (ucb *UserCreateBulk) ExecX(ctx context.Context) {
+	if err := ucb.Exec(ctx); err != nil {
+		panic(err)
+	}
+}

ent/user_delete.go

@@ -0,0 +1,88 @@
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+
+	"code.gurenya.net/carlsmei/muninn-aio/ent/predicate"
+	"code.gurenya.net/carlsmei/muninn-aio/ent/user"
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"entgo.io/ent/schema/field"
+)
+
+// UserDelete is the builder for deleting a User entity.
+type UserDelete struct {
+	config
+	hooks    []Hook
+	mutation *UserMutation
+}
+
+// Where appends a list predicates to the UserDelete builder.
+func (ud *UserDelete) Where(ps ...predicate.User) *UserDelete {
+	ud.mutation.Where(ps...)
+	return ud
+}
+
+// Exec executes the deletion query and returns how many vertices were deleted.
+func (ud *UserDelete) Exec(ctx context.Context) (int, error) {
+	return withHooks(ctx, ud.sqlExec, ud.mutation, ud.hooks)
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (ud *UserDelete) ExecX(ctx context.Context) int {
+	n, err := ud.Exec(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return n
+}
+
+func (ud *UserDelete) sqlExec(ctx context.Context) (int, error) {
+	_spec := sqlgraph.NewDeleteSpec(user.Table, sqlgraph.NewFieldSpec(user.FieldID, field.TypeUUID))
+	if ps := ud.mutation.predicates; len(ps) > 0 {
+		_spec.Predicate = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	affected, err := sqlgraph.DeleteNodes(ctx, ud.driver, _spec)
+	if err != nil && sqlgraph.IsConstraintError(err) {
+		err = &ConstraintError{msg: err.Error(), wrap: err}
+	}
+	ud.mutation.done = true
+	return affected, err
+}
+
+// UserDeleteOne is the builder for deleting a single User entity.
+type UserDeleteOne struct {
+	ud *UserDelete
+}
+
+// Where appends a list predicates to the UserDelete builder.
+func (udo *UserDeleteOne) Where(ps ...predicate.User) *UserDeleteOne {
+	udo.ud.mutation.Where(ps...)
+	return udo
+}
+
+// Exec executes the deletion query.
+func (udo *UserDeleteOne) Exec(ctx context.Context) error {
+	n, err := udo.ud.Exec(ctx)
+	switch {
+	case err != nil:
+		return err
+	case n == 0:
+		return &NotFoundError{user.Label}
+	default:
+		return nil
+	}
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (udo *UserDeleteOne) ExecX(ctx context.Context) {
+	if err := udo.Exec(ctx); err != nil {
+		panic(err)
+	}
+}

ent/user_query.go

@@ -0,0 +1,638 @@
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+	"database/sql/driver"
+	"fmt"
+	"math"
+
+	"code.gurenya.net/carlsmei/muninn-aio/ent/link"
+	"code.gurenya.net/carlsmei/muninn-aio/ent/predicate"
+	"code.gurenya.net/carlsmei/muninn-aio/ent/user"
+	"entgo.io/ent"
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"entgo.io/ent/schema/field"
+	"github.com/google/uuid"
+)
+
+// UserQuery is the builder for querying User entities.
+type UserQuery struct {
+	config
+	ctx        *QueryContext
+	order      []user.OrderOption
+	inters     []Interceptor
+	predicates []predicate.User
+	withLinks  *LinkQuery
+	// intermediate query (i.e. traversal path).
+	sql  *sql.Selector
+	path func(context.Context) (*sql.Selector, error)
+}
+
+// Where adds a new predicate for the UserQuery builder.
+func (uq *UserQuery) Where(ps ...predicate.User) *UserQuery {
+	uq.predicates = append(uq.predicates, ps...)
+	return uq
+}
+
+// Limit the number of records to be returned by this query.
+func (uq *UserQuery) Limit(limit int) *UserQuery {
+	uq.ctx.Limit = &limit
+	return uq
+}
+
+// Offset to start from.
+func (uq *UserQuery) Offset(offset int) *UserQuery {
+	uq.ctx.Offset = &offset
+	return uq
+}
+
+// Unique configures the query builder to filter duplicate records on query.
+// By default, unique is set to true, and can be disabled using this method.
+func (uq *UserQuery) Unique(unique bool) *UserQuery {
+	uq.ctx.Unique = &unique
+	return uq
+}
+
+// Order specifies how the records should be ordered.
+func (uq *UserQuery) Order(o ...user.OrderOption) *UserQuery {
+	uq.order = append(uq.order, o...)
+	return uq
+}
+
+// QueryLinks chains the current query on the "links" edge.
+func (uq *UserQuery) QueryLinks() *LinkQuery {
+	query := (&LinkClient{config: uq.config}).Query()
+	query.path = func(ctx context.Context) (fromU *sql.Selector, err error) {
+		if err := uq.prepareQuery(ctx); err != nil {
+			return nil, err
+		}
+		selector := uq.sqlQuery(ctx)
+		if err := selector.Err(); err != nil {
+			return nil, err
+		}
+		step := sqlgraph.NewStep(
+			sqlgraph.From(user.Table, user.FieldID, selector),
+			sqlgraph.To(link.Table, link.FieldID),
+			sqlgraph.Edge(sqlgraph.M2M, false, user.LinksTable, user.LinksPrimaryKey...),
+		)
+		fromU = sqlgraph.SetNeighbors(uq.driver.Dialect(), step)
+		return fromU, nil
+	}
+	return query
+}
+
+// First returns the first User entity from the query.
+// Returns a *NotFoundError when no User was found.
+func (uq *UserQuery) First(ctx context.Context) (*User, error) {
+	nodes, err := uq.Limit(1).All(setContextOp(ctx, uq.ctx, ent.OpQueryFirst))
+	if err != nil {
+		return nil, err
+	}
+	if len(nodes) == 0 {
+		return nil, &NotFoundError{user.Label}
+	}
+	return nodes[0], nil
+}
+
+// FirstX is like First, but panics if an error occurs.
+func (uq *UserQuery) FirstX(ctx context.Context) *User {
+	node, err := uq.First(ctx)
+	if err != nil && !IsNotFound(err) {
+		panic(err)
+	}
+	return node
+}
+
+// FirstID returns the first User ID from the query.
+// Returns a *NotFoundError when no User ID was found.
+func (uq *UserQuery) FirstID(ctx context.Context) (id uuid.UUID, err error) {
+	var ids []uuid.UUID
+	if ids, err = uq.Limit(1).IDs(setContextOp(ctx, uq.ctx, ent.OpQueryFirstID)); err != nil {
+		return
+	}
+	if len(ids) == 0 {
+		err = &NotFoundError{user.Label}
+		return
+	}
+	return ids[0], nil
+}
+
+// FirstIDX is like FirstID, but panics if an error occurs.
+func (uq *UserQuery) FirstIDX(ctx context.Context) uuid.UUID {
+	id, err := uq.FirstID(ctx)
+	if err != nil && !IsNotFound(err) {
+		panic(err)
+	}
+	return id
+}
+
+// Only returns a single User entity found by the query, ensuring it only returns one.
+// Returns a *NotSingularError when more than one User entity is found.
+// Returns a *NotFoundError when no User entities are found.
+func (uq *UserQuery) Only(ctx context.Context) (*User, error) {
+	nodes, err := uq.Limit(2).All(setContextOp(ctx, uq.ctx, ent.OpQueryOnly))
+	if err != nil {
+		return nil, err
+	}
+	switch len(nodes) {
+	case 1:
+		return nodes[0], nil
+	case 0:
+		return nil, &NotFoundError{user.Label}
+	default:
+		return nil, &NotSingularError{user.Label}
+	}
+}
+
+// OnlyX is like Only, but panics if an error occurs.
+func (uq *UserQuery) OnlyX(ctx context.Context) *User {
+	node, err := uq.Only(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return node
+}
+
+// OnlyID is like Only, but returns the only User ID in the query.
+// Returns a *NotSingularError when more than one User ID is found.
+// Returns a *NotFoundError when no entities are found.
+func (uq *UserQuery) OnlyID(ctx context.Context) (id uuid.UUID, err error) {
+	var ids []uuid.UUID
+	if ids, err = uq.Limit(2).IDs(setContextOp(ctx, uq.ctx, ent.OpQueryOnlyID)); err != nil {
+		return
+	}
+	switch len(ids) {
+	case 1:
+		id = ids[0]
+	case 0:
+		err = &NotFoundError{user.Label}
+	default:
+		err = &NotSingularError{user.Label}
+	}
+	return
+}
+
+// OnlyIDX is like OnlyID, but panics if an error occurs.
+func (uq *UserQuery) OnlyIDX(ctx context.Context) uuid.UUID {
+	id, err := uq.OnlyID(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return id
+}
+
+// All executes the query and returns a list of Users.
+func (uq *UserQuery) All(ctx context.Context) ([]*User, error) {
+	ctx = setContextOp(ctx, uq.ctx, ent.OpQueryAll)
+	if err := uq.prepareQuery(ctx); err != nil {
+		return nil, err
+	}
+	qr := querierAll[[]*User, *UserQuery]()
+	return withInterceptors[[]*User](ctx, uq, qr, uq.inters)
+}
+
+// AllX is like All, but panics if an error occurs.
+func (uq *UserQuery) AllX(ctx context.Context) []*User {
+	nodes, err := uq.All(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return nodes
+}
+
+// IDs executes the query and returns a list of User IDs.
+func (uq *UserQuery) IDs(ctx context.Context) (ids []uuid.UUID, err error) {
+	if uq.ctx.Unique == nil && uq.path != nil {
+		uq.Unique(true)
+	}
+	ctx = setContextOp(ctx, uq.ctx, ent.OpQueryIDs)
+	if err = uq.Select(user.FieldID).Scan(ctx, &ids); err != nil {
+		return nil, err
+	}
+	return ids, nil
+}
+
+// IDsX is like IDs, but panics if an error occurs.
+func (uq *UserQuery) IDsX(ctx context.Context) []uuid.UUID {
+	ids, err := uq.IDs(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return ids
+}
+
+// Count returns the count of the given query.
+func (uq *UserQuery) Count(ctx context.Context) (int, error) {
+	ctx = setContextOp(ctx, uq.ctx, ent.OpQueryCount)
+	if err := uq.prepareQuery(ctx); err != nil {
+		return 0, err
+	}
+	return withInterceptors[int](ctx, uq, querierCount[*UserQuery](), uq.inters)
+}
+
+// CountX is like Count, but panics if an error occurs.
+func (uq *UserQuery) CountX(ctx context.Context) int {
+	count, err := uq.Count(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return count
+}
+
+// Exist returns true if the query has elements in the graph.
+func (uq *UserQuery) Exist(ctx context.Context) (bool, error) {
+	ctx = setContextOp(ctx, uq.ctx, ent.OpQueryExist)
+	switch _, err := uq.FirstID(ctx); {
+	case IsNotFound(err):
+		return false, nil
+	case err != nil:
+		return false, fmt.Errorf("ent: check existence: %w", err)
+	default:
+		return true, nil
+	}
+}
+
+// ExistX is like Exist, but panics if an error occurs.
+func (uq *UserQuery) ExistX(ctx context.Context) bool {
+	exist, err := uq.Exist(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return exist
+}
+
+// Clone returns a duplicate of the UserQuery builder, including all associated steps. It can be
+// used to prepare common query builders and use them differently after the clone is made.
+func (uq *UserQuery) Clone() *UserQuery {
+	if uq == nil {
+		return nil
+	}
+	return &UserQuery{
+		config:     uq.config,
+		ctx:        uq.ctx.Clone(),
+		order:      append([]user.OrderOption{}, uq.order...),
+		inters:     append([]Interceptor{}, uq.inters...),
+		predicates: append([]predicate.User{}, uq.predicates...),
+		withLinks:  uq.withLinks.Clone(),
+		// clone intermediate query.
+		sql:  uq.sql.Clone(),
+		path: uq.path,
+	}
+}
+
+// WithLinks tells the query-builder to eager-load the nodes that are connected to
+// the "links" edge. The optional arguments are used to configure the query builder of the edge.
+func (uq *UserQuery) WithLinks(opts ...func(*LinkQuery)) *UserQuery {
+	query := (&LinkClient{config: uq.config}).Query()
+	for _, opt := range opts {
+		opt(query)
+	}
+	uq.withLinks = query
+	return uq
+}
+
+// GroupBy is used to group vertices by one or more fields/columns.
+// It is often used with aggregate functions, like: count, max, mean, min, sum.
+//
+// Example:
+//
+//	var v []struct {
+//		TelegramID int64 `json:"telegram_id,omitempty"`
+//		Count int `json:"count,omitempty"`
+//	}
+//
+//	client.User.Query().
+//		GroupBy(user.FieldTelegramID).
+//		Aggregate(ent.Count()).
+//		Scan(ctx, &v)
+func (uq *UserQuery) GroupBy(field string, fields ...string) *UserGroupBy {
+	uq.ctx.Fields = append([]string{field}, fields...)
+	grbuild := &UserGroupBy{build: uq}
+	grbuild.flds = &uq.ctx.Fields
+	grbuild.label = user.Label
+	grbuild.scan = grbuild.Scan
+	return grbuild
+}
+
+// Select allows the selection one or more fields/columns for the given query,
+// instead of selecting all fields in the entity.
+//
+// Example:
+//
+//	var v []struct {
+//		TelegramID int64 `json:"telegram_id,omitempty"`
+//	}
+//
+//	client.User.Query().
+//		Select(user.FieldTelegramID).
+//		Scan(ctx, &v)
+func (uq *UserQuery) Select(fields ...string) *UserSelect {
+	uq.ctx.Fields = append(uq.ctx.Fields, fields...)
+	sbuild := &UserSelect{UserQuery: uq}
+	sbuild.label = user.Label
+	sbuild.flds, sbuild.scan = &uq.ctx.Fields, sbuild.Scan
+	return sbuild
+}
+
+// Aggregate returns a UserSelect configured with the given aggregations.
+func (uq *UserQuery) Aggregate(fns ...AggregateFunc) *UserSelect {
+	return uq.Select().Aggregate(fns...)
+}
+
+func (uq *UserQuery) prepareQuery(ctx context.Context) error {
+	for _, inter := range uq.inters {
+		if inter == nil {
+			return fmt.Errorf("ent: uninitialized interceptor (forgotten import ent/runtime?)")
+		}
+		if trv, ok := inter.(Traverser); ok {
+			if err := trv.Traverse(ctx, uq); err != nil {
+				return err
+			}
+		}
+	}
+	for _, f := range uq.ctx.Fields {
+		if !user.ValidColumn(f) {
+			return &ValidationError{Name: f, err: fmt.Errorf("ent: invalid field %q for query", f)}
+		}
+	}
+	if uq.path != nil {
+		prev, err := uq.path(ctx)
+		if err != nil {
+			return err
+		}
+		uq.sql = prev
+	}
+	return nil
+}
+
+func (uq *UserQuery) sqlAll(ctx context.Context, hooks ...queryHook) ([]*User, error) {
+	var (
+		nodes       = []*User{}
+		_spec       = uq.querySpec()
+		loadedTypes = [1]bool{
+			uq.withLinks != nil,
+		}
+	)
+	_spec.ScanValues = func(columns []string) ([]any, error) {
+		return (*User).scanValues(nil, columns)
+	}
+	_spec.Assign = func(columns []string, values []any) error {
+		node := &User{config: uq.config}
+		nodes = append(nodes, node)
+		node.Edges.loadedTypes = loadedTypes
+		return node.assignValues(columns, values)
+	}
+	for i := range hooks {
+		hooks[i](ctx, _spec)
+	}
+	if err := sqlgraph.QueryNodes(ctx, uq.driver, _spec); err != nil {
+		return nil, err
+	}
+	if len(nodes) == 0 {
+		return nodes, nil
+	}
+	if query := uq.withLinks; query != nil {
+		if err := uq.loadLinks(ctx, query, nodes,
+			func(n *User) { n.Edges.Links = []*Link{} },
+			func(n *User, e *Link) { n.Edges.Links = append(n.Edges.Links, e) }); err != nil {
+			return nil, err
+		}
+	}
+	return nodes, nil
+}
+
+func (uq *UserQuery) loadLinks(ctx context.Context, query *LinkQuery, nodes []*User, init func(*User), assign func(*User, *Link)) error {
+	edgeIDs := make([]driver.Value, len(nodes))
+	byID := make(map[uuid.UUID]*User)
+	nids := make(map[uuid.UUID]map[*User]struct{})
+	for i, node := range nodes {
+		edgeIDs[i] = node.ID
+		byID[node.ID] = node
+		if init != nil {
+			init(node)
+		}
+	}
+	query.Where(func(s *sql.Selector) {
+		joinT := sql.Table(user.LinksTable)
+		s.Join(joinT).On(s.C(link.FieldID), joinT.C(user.LinksPrimaryKey[1]))
+		s.Where(sql.InValues(joinT.C(user.LinksPrimaryKey[0]), edgeIDs...))
+		columns := s.SelectedColumns()
+		s.Select(joinT.C(user.LinksPrimaryKey[0]))
+		s.AppendSelect(columns...)
+		s.SetDistinct(false)
+	})
+	if err := query.prepareQuery(ctx); err != nil {
+		return err
+	}
+	qr := QuerierFunc(func(ctx context.Context, q Query) (Value, error) {
+		return query.sqlAll(ctx, func(_ context.Context, spec *sqlgraph.QuerySpec) {
+			assign := spec.Assign
+			values := spec.ScanValues
+			spec.ScanValues = func(columns []string) ([]any, error) {
+				values, err := values(columns[1:])
+				if err != nil {
+					return nil, err
+				}
+				return append([]any{new(uuid.UUID)}, values...), nil
+			}
+			spec.Assign = func(columns []string, values []any) error {
+				outValue := *values[0].(*uuid.UUID)
+				inValue := *values[1].(*uuid.UUID)
+				if nids[inValue] == nil {
+					nids[inValue] = map[*User]struct{}{byID[outValue]: {}}
+					return assign(columns[1:], values[1:])
+				}
+				nids[inValue][byID[outValue]] = struct{}{}
+				return nil
+			}
+		})
+	})
+	neighbors, err := withInterceptors[[]*Link](ctx, query, qr, query.inters)
+	if err != nil {
+		return err
+	}
+	for _, n := range neighbors {
+		nodes, ok := nids[n.ID]
+		if !ok {
+			return fmt.Errorf(`unexpected "links" node returned %v`, n.ID)
+		}
+		for kn := range nodes {
+			assign(kn, n)
+		}
+	}
+	return nil
+}
+
+func (uq *UserQuery) sqlCount(ctx context.Context) (int, error) {
+	_spec := uq.querySpec()
+	_spec.Node.Columns = uq.ctx.Fields
+	if len(uq.ctx.Fields) > 0 {
+		_spec.Unique = uq.ctx.Unique != nil && *uq.ctx.Unique
+	}
+	return sqlgraph.CountNodes(ctx, uq.driver, _spec)
+}
+
+func (uq *UserQuery) querySpec() *sqlgraph.QuerySpec {
+	_spec := sqlgraph.NewQuerySpec(user.Table, user.Columns, sqlgraph.NewFieldSpec(user.FieldID, field.TypeUUID))
+	_spec.From = uq.sql
+	if unique := uq.ctx.Unique; unique != nil {
+		_spec.Unique = *unique
+	} else if uq.path != nil {
+		_spec.Unique = true
+	}
+	if fields := uq.ctx.Fields; len(fields) > 0 {
+		_spec.Node.Columns = make([]string, 0, len(fields))
+		_spec.Node.Columns = append(_spec.Node.Columns, user.FieldID)
+		for i := range fields {
+			if fields[i] != user.FieldID {
+				_spec.Node.Columns = append(_spec.Node.Columns, fields[i])
+			}
+		}
+	}
+	if ps := uq.predicates; len(ps) > 0 {
+		_spec.Predicate = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	if limit := uq.ctx.Limit; limit != nil {
+		_spec.Limit = *limit
+	}
+	if offset := uq.ctx.Offset; offset != nil {
+		_spec.Offset = *offset
+	}
+	if ps := uq.order; len(ps) > 0 {
+		_spec.Order = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	return _spec
+}
+
+func (uq *UserQuery) sqlQuery(ctx context.Context) *sql.Selector {
+	builder := sql.Dialect(uq.driver.Dialect())
+	t1 := builder.Table(user.Table)
+	columns := uq.ctx.Fields
+	if len(columns) == 0 {
+		columns = user.Columns
+	}
+	selector := builder.Select(t1.Columns(columns...)...).From(t1)
+	if uq.sql != nil {
+		selector = uq.sql
+		selector.Select(selector.Columns(columns...)...)
+	}
+	if uq.ctx.Unique != nil && *uq.ctx.Unique {
+		selector.Distinct()
+	}
+	for _, p := range uq.predicates {
+		p(selector)
+	}
+	for _, p := range uq.order {
+		p(selector)
+	}
+	if offset := uq.ctx.Offset; offset != nil {
+		// limit is mandatory for offset clause. We start
+		// with default value, and override it below if needed.
+		selector.Offset(*offset).Limit(math.MaxInt32)
+	}
+	if limit := uq.ctx.Limit; limit != nil {
+		selector.Limit(*limit)
+	}
+	return selector
+}
+
+// UserGroupBy is the group-by builder for User entities.
+type UserGroupBy struct {
+	selector
+	build *UserQuery
+}
+
+// Aggregate adds the given aggregation functions to the group-by query.
+func (ugb *UserGroupBy) Aggregate(fns ...AggregateFunc) *UserGroupBy {
+	ugb.fns = append(ugb.fns, fns...)
+	return ugb
+}
+
+// Scan applies the selector query and scans the result into the given value.
+func (ugb *UserGroupBy) Scan(ctx context.Context, v any) error {
+	ctx = setContextOp(ctx, ugb.build.ctx, ent.OpQueryGroupBy)
+	if err := ugb.build.prepareQuery(ctx); err != nil {
+		return err
+	}
+	return scanWithInterceptors[*UserQuery, *UserGroupBy](ctx, ugb.build, ugb, ugb.build.inters, v)
+}
+
+func (ugb *UserGroupBy) sqlScan(ctx context.Context, root *UserQuery, v any) error {
+	selector := root.sqlQuery(ctx).Select()
+	aggregation := make([]string, 0, len(ugb.fns))
+	for _, fn := range ugb.fns {
+		aggregation = append(aggregation, fn(selector))
+	}
+	if len(selector.SelectedColumns()) == 0 {
+		columns := make([]string, 0, len(*ugb.flds)+len(ugb.fns))
+		for _, f := range *ugb.flds {
+			columns = append(columns, selector.C(f))
+		}
+		columns = append(columns, aggregation...)
+		selector.Select(columns...)
+	}
+	selector.GroupBy(selector.Columns(*ugb.flds...)...)
+	if err := selector.Err(); err != nil {
+		return err
+	}
+	rows := &sql.Rows{}
+	query, args := selector.Query()
+	if err := ugb.build.driver.Query(ctx, query, args, rows); err != nil {
+		return err
+	}
+	defer rows.Close()
+	return sql.ScanSlice(rows, v)
+}
+
+// UserSelect is the builder for selecting fields of User entities.
+type UserSelect struct {
+	*UserQuery
+	selector
+}
+
+// Aggregate adds the given aggregation functions to the selector query.
+func (us *UserSelect) Aggregate(fns ...AggregateFunc) *UserSelect {
+	us.fns = append(us.fns, fns...)
+	return us
+}
+
+// Scan applies the selector query and scans the result into the given value.
+func (us *UserSelect) Scan(ctx context.Context, v any) error {
+	ctx = setContextOp(ctx, us.ctx, ent.OpQuerySelect)
+	if err := us.prepareQuery(ctx); err != nil {
+		return err
+	}
+	return scanWithInterceptors[*UserQuery, *UserSelect](ctx, us.UserQuery, us, us.inters, v)
+}
+
+func (us *UserSelect) sqlScan(ctx context.Context, root *UserQuery, v any) error {
+	selector := root.sqlQuery(ctx)
+	aggregation := make([]string, 0, len(us.fns))
+	for _, fn := range us.fns {
+		aggregation = append(aggregation, fn(selector))
+	}
+	switch n := len(*us.selector.flds); {
+	case n == 0 && len(aggregation) > 0:
+		selector.Select(aggregation...)
+	case n != 0 && len(aggregation) > 0:
+		selector.AppendSelect(aggregation...)
+	}
+	rows := &sql.Rows{}
+	query, args := selector.Query()
+	if err := us.driver.Query(ctx, query, args, rows); err != nil {
+		return err
+	}
+	defer rows.Close()
+	return sql.ScanSlice(rows, v)
+}

ent/user_update.go

@@ -0,0 +1,339 @@
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+	"errors"
+	"fmt"
+
+	"code.gurenya.net/carlsmei/muninn-aio/ent/link"
+	"code.gurenya.net/carlsmei/muninn-aio/ent/predicate"
+	"code.gurenya.net/carlsmei/muninn-aio/ent/user"
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"entgo.io/ent/schema/field"
+	"github.com/google/uuid"
+)
+
+// UserUpdate is the builder for updating User entities.
+type UserUpdate struct {
+	config
+	hooks    []Hook
+	mutation *UserMutation
+}
+
+// Where appends a list predicates to the UserUpdate builder.
+func (uu *UserUpdate) Where(ps ...predicate.User) *UserUpdate {
+	uu.mutation.Where(ps...)
+	return uu
+}
+
+// AddLinkIDs adds the "links" edge to the Link entity by IDs.
+func (uu *UserUpdate) AddLinkIDs(ids ...uuid.UUID) *UserUpdate {
+	uu.mutation.AddLinkIDs(ids...)
+	return uu
+}
+
+// AddLinks adds the "links" edges to the Link entity.
+func (uu *UserUpdate) AddLinks(l ...*Link) *UserUpdate {
+	ids := make([]uuid.UUID, len(l))
+	for i := range l {
+		ids[i] = l[i].ID
+	}
+	return uu.AddLinkIDs(ids...)
+}
+
+// Mutation returns the UserMutation object of the builder.
+func (uu *UserUpdate) Mutation() *UserMutation {
+	return uu.mutation
+}
+
+// ClearLinks clears all "links" edges to the Link entity.
+func (uu *UserUpdate) ClearLinks() *UserUpdate {
+	uu.mutation.ClearLinks()
+	return uu
+}
+
+// RemoveLinkIDs removes the "links" edge to Link entities by IDs.
+func (uu *UserUpdate) RemoveLinkIDs(ids ...uuid.UUID) *UserUpdate {
+	uu.mutation.RemoveLinkIDs(ids...)
+	return uu
+}
+
+// RemoveLinks removes "links" edges to Link entities.
+func (uu *UserUpdate) RemoveLinks(l ...*Link) *UserUpdate {
+	ids := make([]uuid.UUID, len(l))
+	for i := range l {
+		ids[i] = l[i].ID
+	}
+	return uu.RemoveLinkIDs(ids...)
+}
+
+// Save executes the query and returns the number of nodes affected by the update operation.
+func (uu *UserUpdate) Save(ctx context.Context) (int, error) {
+	return withHooks(ctx, uu.sqlSave, uu.mutation, uu.hooks)
+}
+
+// SaveX is like Save, but panics if an error occurs.
+func (uu *UserUpdate) SaveX(ctx context.Context) int {
+	affected, err := uu.Save(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return affected
+}
+
+// Exec executes the query.
+func (uu *UserUpdate) Exec(ctx context.Context) error {
+	_, err := uu.Save(ctx)
+	return err
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (uu *UserUpdate) ExecX(ctx context.Context) {
+	if err := uu.Exec(ctx); err != nil {
+		panic(err)
+	}
+}
+
+func (uu *UserUpdate) sqlSave(ctx context.Context) (n int, err error) {
+	_spec := sqlgraph.NewUpdateSpec(user.Table, user.Columns, sqlgraph.NewFieldSpec(user.FieldID, field.TypeUUID))
+	if ps := uu.mutation.predicates; len(ps) > 0 {
+		_spec.Predicate = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	if uu.mutation.LinksCleared() {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.M2M,
+			Inverse: false,
+			Table:   user.LinksTable,
+			Columns: user.LinksPrimaryKey,
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(link.FieldID, field.TypeUUID),
+			},
+		}
+		_spec.Edges.Clear = append(_spec.Edges.Clear, edge)
+	}
+	if nodes := uu.mutation.RemovedLinksIDs(); len(nodes) > 0 && !uu.mutation.LinksCleared() {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.M2M,
+			Inverse: false,
+			Table:   user.LinksTable,
+			Columns: user.LinksPrimaryKey,
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(link.FieldID, field.TypeUUID),
+			},
+		}
+		for _, k := range nodes {
+			edge.Target.Nodes = append(edge.Target.Nodes, k)
+		}
+		_spec.Edges.Clear = append(_spec.Edges.Clear, edge)
+	}
+	if nodes := uu.mutation.LinksIDs(); len(nodes) > 0 {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.M2M,
+			Inverse: false,
+			Table:   user.LinksTable,
+			Columns: user.LinksPrimaryKey,
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(link.FieldID, field.TypeUUID),
+			},
+		}
+		for _, k := range nodes {
+			edge.Target.Nodes = append(edge.Target.Nodes, k)
+		}
+		_spec.Edges.Add = append(_spec.Edges.Add, edge)
+	}
+	if n, err = sqlgraph.UpdateNodes(ctx, uu.driver, _spec); err != nil {
+		if _, ok := err.(*sqlgraph.NotFoundError); ok {
+			err = &NotFoundError{user.Label}
+		} else if sqlgraph.IsConstraintError(err) {
+			err = &ConstraintError{msg: err.Error(), wrap: err}
+		}
+		return 0, err
+	}
+	uu.mutation.done = true
+	return n, nil
+}
+
+// UserUpdateOne is the builder for updating a single User entity.
+type UserUpdateOne struct {
+	config
+	fields   []string
+	hooks    []Hook
+	mutation *UserMutation
+}
+
+// AddLinkIDs adds the "links" edge to the Link entity by IDs.
+func (uuo *UserUpdateOne) AddLinkIDs(ids ...uuid.UUID) *UserUpdateOne {
+	uuo.mutation.AddLinkIDs(ids...)
+	return uuo
+}
+
+// AddLinks adds the "links" edges to the Link entity.
+func (uuo *UserUpdateOne) AddLinks(l ...*Link) *UserUpdateOne {
+	ids := make([]uuid.UUID, len(l))
+	for i := range l {
+		ids[i] = l[i].ID
+	}
+	return uuo.AddLinkIDs(ids...)
+}
+
+// Mutation returns the UserMutation object of the builder.
+func (uuo *UserUpdateOne) Mutation() *UserMutation {
+	return uuo.mutation
+}
+
+// ClearLinks clears all "links" edges to the Link entity.
+func (uuo *UserUpdateOne) ClearLinks() *UserUpdateOne {
+	uuo.mutation.ClearLinks()
+	return uuo
+}
+
+// RemoveLinkIDs removes the "links" edge to Link entities by IDs.
+func (uuo *UserUpdateOne) RemoveLinkIDs(ids ...uuid.UUID) *UserUpdateOne {
+	uuo.mutation.RemoveLinkIDs(ids...)
+	return uuo
+}
+
+// RemoveLinks removes "links" edges to Link entities.
+func (uuo *UserUpdateOne) RemoveLinks(l ...*Link) *UserUpdateOne {
+	ids := make([]uuid.UUID, len(l))
+	for i := range l {
+		ids[i] = l[i].ID
+	}
+	return uuo.RemoveLinkIDs(ids...)
+}
+
+// Where appends a list predicates to the UserUpdate builder.
+func (uuo *UserUpdateOne) Where(ps ...predicate.User) *UserUpdateOne {
+	uuo.mutation.Where(ps...)
+	return uuo
+}
+
+// Select allows selecting one or more fields (columns) of the returned entity.
+// The default is selecting all fields defined in the entity schema.
+func (uuo *UserUpdateOne) Select(field string, fields ...string) *UserUpdateOne {
+	uuo.fields = append([]string{field}, fields...)
+	return uuo
+}
+
+// Save executes the query and returns the updated User entity.
+func (uuo *UserUpdateOne) Save(ctx context.Context) (*User, error) {
+	return withHooks(ctx, uuo.sqlSave, uuo.mutation, uuo.hooks)
+}
+
+// SaveX is like Save, but panics if an error occurs.
+func (uuo *UserUpdateOne) SaveX(ctx context.Context) *User {
+	node, err := uuo.Save(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return node
+}
+
+// Exec executes the query on the entity.
+func (uuo *UserUpdateOne) Exec(ctx context.Context) error {
+	_, err := uuo.Save(ctx)
+	return err
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (uuo *UserUpdateOne) ExecX(ctx context.Context) {
+	if err := uuo.Exec(ctx); err != nil {
+		panic(err)
+	}
+}
+
+func (uuo *UserUpdateOne) sqlSave(ctx context.Context) (_node *User, err error) {
+	_spec := sqlgraph.NewUpdateSpec(user.Table, user.Columns, sqlgraph.NewFieldSpec(user.FieldID, field.TypeUUID))
+	id, ok := uuo.mutation.ID()
+	if !ok {
+		return nil, &ValidationError{Name: "id", err: errors.New(`ent: missing "User.id" for update`)}
+	}
+	_spec.Node.ID.Value = id
+	if fields := uuo.fields; len(fields) > 0 {
+		_spec.Node.Columns = make([]string, 0, len(fields))
+		_spec.Node.Columns = append(_spec.Node.Columns, user.FieldID)
+		for _, f := range fields {
+			if !user.ValidColumn(f) {
+				return nil, &ValidationError{Name: f, err: fmt.Errorf("ent: invalid field %q for query", f)}
+			}
+			if f != user.FieldID {
+				_spec.Node.Columns = append(_spec.Node.Columns, f)
+			}
+		}
+	}
+	if ps := uuo.mutation.predicates; len(ps) > 0 {
+		_spec.Predicate = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	if uuo.mutation.LinksCleared() {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.M2M,
+			Inverse: false,
+			Table:   user.LinksTable,
+			Columns: user.LinksPrimaryKey,
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(link.FieldID, field.TypeUUID),
+			},
+		}
+		_spec.Edges.Clear = append(_spec.Edges.Clear, edge)
+	}
+	if nodes := uuo.mutation.RemovedLinksIDs(); len(nodes) > 0 && !uuo.mutation.LinksCleared() {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.M2M,
+			Inverse: false,
+			Table:   user.LinksTable,
+			Columns: user.LinksPrimaryKey,
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(link.FieldID, field.TypeUUID),
+			},
+		}
+		for _, k := range nodes {
+			edge.Target.Nodes = append(edge.Target.Nodes, k)
+		}
+		_spec.Edges.Clear = append(_spec.Edges.Clear, edge)
+	}
+	if nodes := uuo.mutation.LinksIDs(); len(nodes) > 0 {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.M2M,
+			Inverse: false,
+			Table:   user.LinksTable,
+			Columns: user.LinksPrimaryKey,
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(link.FieldID, field.TypeUUID),
+			},
+		}
+		for _, k := range nodes {
+			edge.Target.Nodes = append(edge.Target.Nodes, k)
+		}
+		_spec.Edges.Add = append(_spec.Edges.Add, edge)
+	}
+	_node = &User{config: uuo.config}
+	_spec.Assign = _node.assignValues
+	_spec.ScanValues = _node.scanValues
+	if err = sqlgraph.UpdateNode(ctx, uuo.driver, _spec); err != nil {
+		if _, ok := err.(*sqlgraph.NotFoundError); ok {
+			err = &NotFoundError{user.Label}
+		} else if sqlgraph.IsConstraintError(err) {
+			err = &ConstraintError{msg: err.Error(), wrap: err}
+		}
+		return nil, err
+	}
+	uuo.mutation.done = true
+	return _node, nil
+}

go.mod

@@ -0,0 +1,43 @@
+module code.gurenya.net/carlsmei/muninn-aio
+
+go 1.22.2
+
+require (
+	entgo.io/ent v0.14.0
+	github.com/asaskevich/govalidator v0.0.0-20230301143203-a9d515a09cc2
+	github.com/go-sql-driver/mysql v1.8.1
+	github.com/go-telegram/bot v1.6.1
+	github.com/google/uuid v1.6.0
+	github.com/kelseyhightower/envconfig v1.4.0
+	github.com/lib/pq v1.10.9
+	github.com/mattn/go-sqlite3 v1.14.22
+)
+
+require (
+	ariga.io/atlas v0.19.1-0.20240203083654-5948b60a8e43 // indirect
+	filippo.io/edwards25519 v1.1.0 // indirect
+	github.com/agext/levenshtein v1.2.1 // indirect
+	github.com/andybalholm/brotli v1.1.0 // indirect
+	github.com/apparentlymart/go-textseg/v13 v13.0.0 // indirect
+	github.com/go-openapi/inflect v0.19.0 // indirect
+	github.com/gofiber/fiber/v2 v2.52.5 // indirect
+	github.com/gofiber/utils v0.0.10 // indirect
+	github.com/google/go-cmp v0.6.0 // indirect
+	github.com/gorilla/schema v1.1.0 // indirect
+	github.com/hashicorp/hcl/v2 v2.13.0 // indirect
+	github.com/klauspost/compress v1.17.9 // indirect
+	github.com/kr/pretty v0.3.1 // indirect
+	github.com/mattn/go-colorable v0.1.13 // indirect
+	github.com/mattn/go-isatty v0.0.20 // indirect
+	github.com/mattn/go-runewidth v0.0.15 // indirect
+	github.com/mitchellh/go-wordwrap v0.0.0-20150314170334-ad45545899c7 // indirect
+	github.com/rivo/uniseg v0.2.0 // indirect
+	github.com/stretchr/testify v1.9.0 // indirect
+	github.com/valyala/bytebufferpool v1.0.0 // indirect
+	github.com/valyala/fasthttp v1.55.0 // indirect
+	github.com/valyala/tcplisten v1.0.0 // indirect
+	github.com/zclconf/go-cty v1.8.0 // indirect
+	golang.org/x/mod v0.17.0 // indirect
+	golang.org/x/sys v0.22.0 // indirect
+	golang.org/x/text v0.16.0 // indirect
+)

go.sum

@@ -0,0 +1,122 @@
+ariga.io/atlas v0.19.1-0.20240203083654-5948b60a8e43 h1:GwdJbXydHCYPedeeLt4x/lrlIISQ4JTH1mRWuE5ZZ14=
+ariga.io/atlas v0.19.1-0.20240203083654-5948b60a8e43/go.mod h1:uj3pm+hUTVN/X5yfdBexHlZv+1Xu5u5ZbZx7+CDavNU=
+entgo.io/ent v0.14.0 h1:EO3Z9aZ5bXJatJeGqu/EVdnNr6K4mRq3rWe5owt0MC4=
+entgo.io/ent v0.14.0/go.mod h1:qCEmo+biw3ccBn9OyL4ZK5dfpwg++l1Gxwac5B1206A=
+filippo.io/edwards25519 v1.1.0 h1:FNf4tywRC1HmFuKW5xopWpigGjJKiJSV0Cqo0cJWDaA=
+filippo.io/edwards25519 v1.1.0/go.mod h1:BxyFTGdWcka3PhytdK4V28tE5sGfRvvvRV7EaN4VDT4=
+github.com/DATA-DOG/go-sqlmock v1.5.0 h1:Shsta01QNfFxHCfpW6YH2STWB0MudeXXEWMr20OEh60=
+github.com/DATA-DOG/go-sqlmock v1.5.0/go.mod h1:f/Ixk793poVmq4qj/V1dPUg2JEAKC73Q5eFN3EC/SaM=
+github.com/agext/levenshtein v1.2.1 h1:QmvMAjj2aEICytGiWzmxoE0x2KZvE0fvmqMOfy2tjT8=
+github.com/agext/levenshtein v1.2.1/go.mod h1:JEDfjyjHDjOF/1e4FlBE/PkbqA9OfWu2ki2W0IB5558=
+github.com/andybalholm/brotli v1.0.0/go.mod h1:loMXtMfwqflxFJPmdbJO0a3KNoPuLBgiu3qAvBg8x/Y=
+github.com/andybalholm/brotli v1.1.0 h1:eLKJA0d02Lf0mVpIDgYnqXcUn0GqVmEFny3VuID1U3M=
+github.com/andybalholm/brotli v1.1.0/go.mod h1:sms7XGricyQI9K10gOSf56VKKWS4oLer58Q+mhRPtnY=
+github.com/apparentlymart/go-textseg/v13 v13.0.0 h1:Y+KvPE1NYz0xl601PVImeQfFyEy6iT90AvPUL1NNfNw=
+github.com/apparentlymart/go-textseg/v13 v13.0.0/go.mod h1:ZK2fH7c4NqDTLtiYLvIkEghdlcqw7yxLeM89kiTRPUo=
+github.com/asaskevich/govalidator v0.0.0-20230301143203-a9d515a09cc2 h1:DklsrG3dyBCFEj5IhUbnKptjxatkF07cF2ak3yi77so=
+github.com/asaskevich/govalidator v0.0.0-20230301143203-a9d515a09cc2/go.mod h1:WaHUgvxTVq04UNunO+XhnAqY/wQc+bxr74GqbsZ/Jqw=
+github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/go-openapi/inflect v0.19.0 h1:9jCH9scKIbHeV9m12SmPilScz6krDxKRasNNSNPXu/4=
+github.com/go-openapi/inflect v0.19.0/go.mod h1:lHpZVlpIQqLyKwJ4N+YSc9hchQy/i12fJykb83CRBH4=
+github.com/go-sql-driver/mysql v1.8.1 h1:LedoTUt/eveggdHS9qUFC1EFSa8bU2+1pZjSRpvNJ1Y=
+github.com/go-sql-driver/mysql v1.8.1/go.mod h1:wEBSXgmK//2ZFJyE+qWnIsVGmvmEKlqwuVSjsCm7DZg=
+github.com/go-telegram/bot v1.6.1 h1:jiIYq8Z7HfL4nZ+rPpCBMPWLvll04LLxaGs/DleWnbU=
+github.com/go-telegram/bot v1.6.1/go.mod h1:i2TRs7fXWIeaceF3z7KzsMt/he0TwkVC680mvdTFYeM=
+github.com/go-test/deep v1.0.3 h1:ZrJSEWsXzPOxaZnFteGEfooLba+ju3FYIbOrS+rQd68=
+github.com/go-test/deep v1.0.3/go.mod h1:wGDj63lr65AM2AQyKZd/NYHGb0R+1RLqB8NKt3aSFNA=
+github.com/gofiber/fiber v1.14.6 h1:QRUPvPmr8ijQuGo1MgupHBn8E+wW0IKqiOvIZPtV70o=
+github.com/gofiber/fiber v1.14.6/go.mod h1:Yw2ekF1YDPreO9V6TMYjynu94xRxZBdaa8X5HhHsjCM=
+github.com/gofiber/fiber/v2 v2.52.5 h1:tWoP1MJQjGEe4GB5TUGOi7P2E0ZMMRx5ZTG4rT+yGMo=
+github.com/gofiber/fiber/v2 v2.52.5/go.mod h1:KEOE+cXMhXG0zHc9d8+E38hoX+ZN7bhOtgeF2oT6jrQ=
+github.com/gofiber/utils v0.0.10 h1:3Mr7X7JdCUo7CWf/i5sajSaDmArEDtti8bM1JUVso2U=
+github.com/gofiber/utils v0.0.10/go.mod h1:9J5aHFUIjq0XfknT4+hdSMG6/jzfaAgCu4HEbWDeBlo=
+github.com/golang/protobuf v1.3.1/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
+github.com/golang/protobuf v1.3.4/go.mod h1:vzj43D7+SQXF/4pzW/hwtAqwc6iTitCiVSaWz5lYuqw=
+github.com/google/go-cmp v0.3.1/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
+github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
+github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
+github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
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handlers.go

@@ -0,0 +1,45 @@
+package main
+
+import (
+	"context"
+	"fmt"
+	"net/url"
+
+	"code.gurenya.net/carlsmei/muninn-aio/services"
+	"github.com/go-telegram/bot"
+	"github.com/go-telegram/bot/models"
+)
+
+func generateLinkHandler(ctx context.Context, b *bot.Bot, update *models.Update) {
+	user, err := services.GetOrCreateUser(ctx, update.Message.From.ID)
+
+	if err != nil {
+		panic(err)
+	}
+
+	link, err := services.CreateLink(ctx, user, update.Message.Text, "")
+
+	if err != nil {
+		panic(err)
+	}
+
+	url, err := url.Parse("http://localhost:3000")
+	url.Path = link.Key
+
+	if err != nil {
+		panic(err)
+	}
+
+	b.SendMessage(ctx, &bot.SendMessageParams{
+		ChatID:    update.Message.Chat.ID,
+		Text:      fmt.Sprintf("Ваша короткая ссылка готова - %s", url.String()),
+		ParseMode: models.ParseModeHTML,
+	})
+}
+
+func startHandler(ctx context.Context, b *bot.Bot, update *models.Update) {
+	b.SendMessage(ctx, &bot.SendMessageParams{
+		ChatID: update.Message.Chat.ID,
+		Text:   fmt.Sprintf("Привет! Я Muninn, бот для укорачивания ссылок.\n\nВ данный момент у меня нет особых возможностей, но в скором времени что-нибудь да появится.\n\nЭто быстренький прототип написанный за ночь, в оригинальной версии сервис делится на части и состоит из разных приложений взаимодействующих между собой :/\n\nVersion: %s\nRepository: https://code.gurenya.net/carlsmei/muninn-aio", Version),
+	})
+}

main.go

@@ -0,0 +1,84 @@
+package main
+
+import (
+	"context"
+	"fmt"
+	"strings"
+
+	"code.gurenya.net/carlsmei/muninn-aio/config"
+	"code.gurenya.net/carlsmei/muninn-aio/db"
+	"code.gurenya.net/carlsmei/muninn-aio/ent"
+	"code.gurenya.net/carlsmei/muninn-aio/services"
+	"github.com/asaskevich/govalidator"
+	"github.com/go-telegram/bot"
+	"github.com/go-telegram/bot/models"
+	"github.com/gofiber/fiber/v2"
+
+	_ "github.com/go-sql-driver/mysql"
+	_ "github.com/lib/pq"
+	_ "github.com/mattn/go-sqlite3"
+)
+
+var (
+	Version = "dev"
+)
+
+func main() {
+	config.Load()
+	db.EntInit()
+
+	// TELEGRAM
+	opts := []bot.Option{
+		// bot.WithDefaultHandler(handler),
+	}
+
+	b, err := bot.New(config.Env.TelegramToken, opts...)
+	if err != nil {
+		panic(err)
+	}
+
+	b.RegisterHandler(bot.HandlerTypeMessageText, "/start", bot.MatchTypeExact, startHandler)
+	b.RegisterHandlerMatchFunc(func(update *models.Update) bool {
+		return update.Message != nil && govalidator.IsURL(update.Message.Text)
+	}, generateLinkHandler)
+
+	go b.Start(context.Background())
+
+	// FIBER
+	app := fiber.New()
+
+	app.Use(func(c *fiber.Ctx) error {
+		c.Set("Server", fmt.Sprintf("muninn-aio (%s)", Version))
+
+		return c.Next()
+	})
+
+	app.Get("/:key", func(c *fiber.Ctx) error {
+		key := c.Params("key")
+
+		link, err := services.GetLinkByKey(c.Context(), key)
+		if err != nil {
+			if ent.IsNotFound(err) {
+				return c.Status(404).SendString("not found")
+			}
+		}
+
+		c.SendString(fmt.Sprintf("Found. Redirecting to %s", link.OriginalURL))
+		return c.Redirect(link.OriginalURL, 302)
+	})
+
+	var addr string
+	if strings.Contains(config.Env.AppPort, ":") {
+		addr = config.Env.AppPort
+	} else {
+		addr = ":" + config.Env.AppPort
+	}
+
+	app.Listen(addr)
+
+	// quit := make(chan os.Signal, 1)
+	// signal.Notify(quit, os.Interrupt, syscall.SIGTERM)
+	// sig := <-quit
+
+	// fmt.Printf("Shutting down server... Reason: %s\n", sig)
+}

services/key.go

@@ -0,0 +1,38 @@
+package services
+
+import (
+	"context"
+	"math/rand"
+	"time"
+
+	"code.gurenya.net/carlsmei/muninn-aio/db"
+	"code.gurenya.net/carlsmei/muninn-aio/ent/link"
+)
+
+// Key Generation Algorithm 6:51 MSK 29.07.24
+
+var numChars = 8
+var keyAlphabet = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789"
+var seededRand *rand.Rand = rand.New(
+	rand.NewSource(time.Now().UnixNano()))
+
+func GenerateKey(ctx context.Context) string {
+	client := db.GetEntClient()
+	cond := false
+	key := make([]byte, numChars)
+
+	for !cond {
+		for i := range key {
+			key[i] = keyAlphabet[seededRand.Intn(len(keyAlphabet))]
+		}
+
+		exists, _ := client.Link.
+			Query().
+			Where(link.Key(string(key))).
+			Exist(ctx)
+
+		cond = !exists
+	}
+
+	return string(key)
+}

services/link.go

@@ -0,0 +1,44 @@
+package services
+
+import (
+	"context"
+
+	"code.gurenya.net/carlsmei/muninn-aio/db"
+	"code.gurenya.net/carlsmei/muninn-aio/ent"
+	"code.gurenya.net/carlsmei/muninn-aio/ent/link"
+)
+
+func CreateLink(ctx context.Context, user *ent.User, original_url string, key string) (*ent.Link, error) {
+	client := db.GetEntClient()
+
+	if key == "" {
+		key = GenerateKey(ctx)
+	}
+
+	link, err := client.Link.Create().
+		AddOwner(user).
+		SetKey(key).
+		SetOriginalURL(original_url).
+		Save(ctx)
+
+	if err != nil {
+		return nil, err
+	}
+
+	return link, nil
+}
+
+func GetLinkByKey(ctx context.Context, key string) (*ent.Link, error) {
+	client := db.GetEntClient()
+
+	link, err := client.Link.
+		Query().
+		Where(link.Key(key)).
+		Only(ctx)
+
+	if err != nil {
+		return nil, err
+	}
+
+	return link, nil
+}

services/user.go

@@ -0,0 +1,40 @@
+package services
+
+import (
+	"context"
+
+	"code.gurenya.net/carlsmei/muninn-aio/db"
+	"code.gurenya.net/carlsmei/muninn-aio/ent"
+	"code.gurenya.net/carlsmei/muninn-aio/ent/user"
+)
+
+func GetOrCreateUser(ctx context.Context, telegram_id int64) (*ent.User, error) {
+	client := db.GetEntClient()
+
+	// fmt.Printf("GetOrCreateUser(context, %d)\n", telegram_id)
+
+	user, err := client.User.Query().
+		Where(user.TelegramID(telegram_id)).
+		Only(ctx)
+	if err != nil {
+		if ent.IsNotFound(err) {
+			// fmt.Printf("user not found - creating user with telegram id %d\n", telegram_id)
+		} else {
+			return nil, err
+		}
+	} else {
+		return user, nil
+	}
+
+	user, err = client.User.Create().
+		SetTelegramID(telegram_id).
+		Save(ctx)
+
+	if err != nil {
+		return nil, err
+	}
+
+	// fmt.Printf("user created with telegram id %d\n", telegram_id)
+
+	return user, nil
+}