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gamemodes/darkrp/plugins/phone/libs/sv_exchange.lua

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+--[[
+| This file was obtained through the combined efforts
+| of Madbluntz & Plymouth Antiquarian Society.
+|
+| Credits: lifestorm, Gregory Wayne Rossel JR.,
+| 	Maloy, DrPepper10 @ RIP, Atle!
+|
+| Visit for more: https://plymouth.thetwilightzone.ru/
+--]]
+
+ix.phone = ix.phone or {}
+ix.phone.switch = ix.phone.switch or {}
+ 
+-- a table used for managing pbxs and their members
+ix.phone.switch.exchanges = ix.phone.switch.exchanges or {}
+
+--[[ The following is some boiler plate code for creating and managing extensions and exchanges
+    In practice these things are just keys in a table and in the DB but it is probably best
+    if you use the functions here and not directly modify ix.phone.switch.exchanges directly!
+
+    This is necessary to keep the switching code readable 
+]]
+function ix.phone.switch:AddExchange(exID)
+    if (self:ExchangeExists(exID)) then
+        return false
+    end
+
+    self.exchanges[exID] = {}
+    return true
+end
+
+function ix.phone.switch:RmExchange(exID)
+    if (!self:ExchangeExists(exID)) then
+        return false
+    end
+
+    self.exchanges[exID] = nil
+    return true
+end
+
+function ix.phone.switch:ExchangeExists(exID)
+    return self.exchanges[exID] != nil
+end
+
+function ix.phone.switch:DestExists(exID, extNum)
+    if (self.exchanges[exID] != nil) then
+        return self.exchanges[exID][extNum] != nil
+    else
+        return false
+    end
+end
+
+function ix.phone.switch:AddDest(exID, extNum, extName, endID)
+    -- returns false if destination exists or exchange doesn't
+    -- set noDB if you do not wish to store this destination to the database
+    if (self:DestExists(exID, extNum)) then
+        return false
+    end
+
+    self.exchanges[exID][extNum] = {}
+    self.exchanges[exID][extNum]["name"] = extName or ""
+    self.exchanges[exID][extNum]["endID"] = endID
+    return true
+end
+
+function ix.phone.switch:GetDest(exID, extNum)
+    if (!self:DestExists(exID, extNum)) then
+        return false
+    end
+
+    return self.exchanges[exID][extNum]
+end
+
+function ix.phone.switch:RmDest(exID, extNum)
+    -- returns false if destination does not exist
+    if (!self:DestExists(exID, extNum)) then
+        return false
+    end
+
+    self.exchanges[exID][extNum] = nil
+
+    return true
+end
+
+function ix.phone.switch:MvDest(fromExID, fromExtNum, toExID, toExtNum)
+    if (!self:RmDest(fromExID, fromExtNum)) then
+        return false
+    end
+
+    return self:AddDest(toExID, toExtNum)
+end
+
+function ix.phone.switch:SetName(exID, extNum, name)
+    if (!self:DestExists(exID, extNum)) then
+        return false
+    end
+
+    self.endpoints[self.exchanges[exID][extNum]["endID"]].currentName = name
+    return true
+end