--Network Music Player Daemon alpha by Hexxeh

--What port do we listen for requests on? Default is fine, don't change unless you've got a good reason
PORT = 2222

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--DON'T EDIT BELOW HERE!
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require("socket")
print("-------------------------------------------")
print("----Network Music Player Daemon Started----")
print("-------------------------------------------")
print("-------------------------- Alpha Version --")
print("-------------------------------------------")
nmpd = socket.tcp()
nmpd:bind("*", PORT)
nmpd:listen()
recvt = {}
connections = 0;
table.insert(recvt,nmpd)

function printerror(text)
	print("NMPD: "..text)
end

function PlaySong()
	printerror("PlaySong not yet implemented")
end

function StopSong()
	printerror("StopSong not yet implemented")
end

function PauseSong()
	printerror("PauseSong not yet implemented")
end

while true do
	local reading,writing,err = socket.select(recvt,nil)
	if reading[nmpd] then
		local connected = nmpd:accept()
		table.insert(recvt,connected)
		connected:send("HELLO\n")
		connections = connections + 1
		printerror("New client connected. Total: ".. connections ..".")
	else
		for k,v in pairs(reading) do
			local message,err = v:receive("*l")
			if err == nil then
				if message == "BYE\n" then
					connections = connections - 1
					v:close()
				elseif string.sub(message,1,4) == "PLAY" then
					PlaySong()
					v:send("ACKPLAY\n")
				elseif string.sub(message,1,4) == "STOP" then
					StopSong()
					v:send("ACKSTOP\n")
				elseif string.sub(message,1,5) == "PAUSE" then
					PauseSong()
					v:send("ACKPAUSE\n")
				else
					printerror("Unrecognised command from client")
				end
			else
				printerror("Socket error! (".. err ..")")
			end
		end
	end
end