Cooldown Handling Module

--//Hopefully you find this module in some way usefull
--//More info here https://devforum.roblox.com/t/1399553
--//Created by AllAllLol1\\

local Cooldown = {}
local CooldownList = {}

local function UpdateTime(startTime, tableName, valueName) --This function is completely additional and can be removed or edited if you know what your doing
    if CooldownList[tableName] then
        if CooldownList[tableName][valueName] then
            local OriginalTime = CooldownList[tableName][valueName] --Original cooldown duration

            while wait() do
                local currentTime = os.time()
                local timePassed = currentTime - startTime

                local timeLeft = OriginalTime - timePassed
                if OriginalTime >= timePassed then --I dont want the local [timeLeft] variable to change the actual variable inside the table to a negative integer
                    CooldownList[tableName][valueName] = timeLeft
                else
                    CooldownList[tableName][valueName] = 0 --Else it will just be 0
                    break --Break the while loop
                end
            end
        end
    end
end

local function WaitCooldown(tableName, valueName, Time) --This function will wait for the cooldown to finish and then delete the value from the player table or the player table itself if its empty
    local startTime = os.time()
    local newThread = coroutine.create(UpdateTime)
    coroutine.resume(newThread, startTime, tableName, valueName)

    wait(Time) --This line waits in seconds (local [UpdateTime] function does not change local [Time] variable)

    for i, ii in next, CooldownList[tableName] do
        if i == valueName then
            CooldownList[tableName][ii] = nil
            table.remove(CooldownList[tableName],i)
        end
    end

    if #CooldownList[tableName] == 0 then
        CooldownList[tableName] = nil
    end
end

function Cooldown.Add(tableName, valueName, cooldown) -- This function will insert a table for each diffirent player with diffirent cooldown values for diffirent valueName
    if tonumber(cooldown) ~= nil then --This line is to make sure that passed variable [cooldown] isn't nil and has interger(s)
        if CooldownList[tableName] then
            table.insert(CooldownList[tableName], valueName)
            CooldownList[tableName][valueName] = cooldown
            local newThread = coroutine.create(WaitCooldown)
            coroutine.resume(newThread, tableName, valueName, cooldown)
            return true
        else
            CooldownList[tableName] = {[valueName] = cooldown}
            local newThread = coroutine.create(WaitCooldown)
            coroutine.resume(newThread, tableName, valueName, cooldown)
            return true
        end
    end
    return false
end

function Cooldown.Check(tableName, valueName) --This function will check [CooldownList] table in order to know if the value already exists
    if CooldownList[tableName] then
        if CooldownList[tableName][valueName] then
            local timeLeft = CooldownList[tableName][valueName] --If the local [UpdateTime] function is used it will return the time that is left else it will return the starting local [cooldown] variable in Module [Add] function
            return false, timeLeft
        else
            return true
        end
    else
        return true
    end
end

return Cooldown