Chat Commands

_G.CCSession = (_G.CCSession or 0) + 1
returnList = {
    session = _G.CCSession,
    commandSymbol = ';',
    commandsList = {},
    started = false,
    enabled = true,
    deleteMessages = true
}

function returnList:setCommand(commandName, ...) --lowerString, helpText, Callback
    local settings;
    local Callback;
    local lowerString;
    local description;
    local helpText;
    if type(commandName) == 'table' then
        settings = commandName
        commandName = settings.Name
        Callback = settings.Callback
        lowerString = settings.lowerString
        description = settings.description or ''
        helpText = settings.helpText or description
    else
        settings = {...}
        Callback = settings[#settings]
        settings[#settings] = nil
        lowerString = settings[1]
        description = settings[2] or ''
        helpText = settings[3] or description
    end
    if type(commandName) == 'string' and type(Callback) == 'function' then
        if commandName ~= '' then
            returnList.commandsList[commandName] = {Callback = Callback, lowerString = lowerString, description = description, helpText = helpText}
            return returnList.commandsList[commandName]
        end
    end
    return 'error'
end
function returnList:getCommand(commandName)
    if commandName then
        if returnList.commandsList[commandName] then
            return returnList.commandsList[commandName]
        end
        for cmdName, settings in pairs(returnList.commandsList) do
            if string.lower(cmdName) == string.lower(commandName) and settings.lowerString then
                return returnList.commandsList[cmdName]
            end
        end
    end
    return nil
end

function returnList:systemMessage(msg)
    game.StarterGui:SetCore("ChatMakeSystemMessage", {
        Text = "[CC] "..tostring(msg),
        Color = Color3.fromRGB(255,255,255),
        Font = Enum.Font.Cartoon,
        FontSize = Enum.FontSize.Size24,
    })
end

function returnList:Start()
    returnList.started = true
    returnList.Start = function() returnList:systemMessage('Alredy started') end
    returnList.commandsList[''] = {Callback = function() returnList:systemMessage('Chat Commands by RomashkaHEHE') end}
    returnList:setCommand('list', true, 'print all commands', function()
        print()
        for cmdName, settings in pairs(returnList.commandsList) do
            if cmdName ~= '' then
                print(cmdName, settings.description ~= '' and '- '..settings.description or '')
            end
        end
        print()
    end)
    returnList:setCommand('help', true, 'saying helpText', function(command)
        local command = returnList:getCommand(command)
        if command then
            returnList:systemMessage(command.helpText ~= '' and command.helpText or "There's no helpText :(")
        else
            returnList:systemMessage('Wrong command name :( U can use list for more information')
        end
    end)

    returnList:systemMessage('Command symbole: '..returnList.commandSymbol)
    returnList:systemMessage('Use the "list" to print all commands in DEV console (F9)')
    returnList:systemMessage('Use the "help Command_Name" to get a description of the command')

    _G.chatHookFunc = function(self, ...)
        local arguments = {...}
        if returnList.enabled and self.Name == 'SayMessageRequest' and string.lower(getnamecallmethod()) == 'fireserver' and type(returnList.commandSymbol) == 'string' and arguments[1] then
            local message = arguments[1]
            if string.sub(message, 1, #returnList.commandSymbol) == returnList.commandSymbol then
                message = string.sub(message, #returnList.commandSymbol+1, #message)
                local gmatch = string.gmatch(message, '%S+')
                local command = gmatch() or ''
                local commandArguments = {}
                for word in gmatch do
                    table.insert(commandArguments, word)
                end
                local command = returnList:getCommand(command)
                if command then
                    command.Callback(unpack(commandArguments))
                end
                if returnList.deleteMessages then
                    return nil
                end
            end
        end
        return _G.chatHook(self, ...)
    end
    if not _G.chatHook then
        _G.chatHook = hookmetamethod(game, '__namecall', function(self, ...)
            if _G.chatHookFunc then
                return _G.chatHookFunc(self, ...)
            end
            return _G.chatHook(self, ...)
        end)
    end
end

return returnList