gmod = gmod or {}

gmod.Ip = "88.191.111.120"
gmod.ServerPort = 27005
gmod.ClientPort = 5556

gmod.Hooks = gmod.Hooks or {}

function gmod.Hook(tag, callback)
    gmod.Hooks[tag] = callback
end

local function decode(str)
    local args = sigh.Decode(str)

    local id = args[1]
    table.remove(args, 1)

    return id, args
end

local function encode(id, ...)
    return sigh.Encode(id, ...)
end

function gmod.Send(id, ...)
    local str = encode(id, ...)

    gmod.RawSend(str)
end

function gmod.ReceiveFromGmod(str)
    local id, args = decode(str)

    if gmod.Hooks[id] then
        gmod.Hooks[id](unpack(args))
    end
end
hook.Add("GmodMessage", "gmod", gmod.ReceiveFromGmod, print)

-- socket specific code

function gmod.RawSend(str)
    if gmod_client then
        gmod_client:close()
    end
    gmod_client = socket.connect(gmod.Ip, gmod.ClientPort)
    gmod_client:settimeout(0)

    gmod_client:send(str)
end

function gmod.StartServer()
    if gmod_server then
        gmod_server:close()
    end

    gmod_server = assert(luasocket.socket.bind("*", gmod.ServerPort))
    gmod_server:settimeout(0)

    timer.Create("gmod_server", 0, 0, function()
        local client = gmod_server:accept()

        if client then
            client:settimeout(0)
            local tries = 0

            timer.Create("gmod_server_send", 0, 0, function()
                local str, err = client:receive()

                if str then
                    hook.Call("GmodMessage", str)
                    tries = math.huge
                elseif err ~= "timeout" then
                    print(err)
                end

                if tries > 20 then
                    client:close()
                    timer.Remove("gmod_server_send")
                end

                tries = tries + 1
            end)
        end
    end)
end

gmod.StartServer()

gmod.Hook("hello", function(...)
    print(...)
end)

gmod.Send("hello", "hello from oohh!")

--

gmod.Hook("l", function(str)
    easylua.RunString(entities.GetLocalPlayer(), str)
end)

hook.Add("ConsolePrint",1,function(str)
    gmod.Send("console", str)
end)