# Bryan Schumaker (11/13/2010)

import socket
import libsaria
from libsaria import threads

server = None

def play_id(arg):
	id = int(arg[0])
	print "Trying to play id: %s" % id
	libsaria.sources.library.play_id(id)

def play(*args):
	libsaria.audio.play()

def pause(*args):
	libsaria.audio.pause()

def stop(*args):
	libsaria.audio.stop()

def next(*args):
	print libsaria.sources
	libsaria.sources.plist_next()

procs = {"play_id":play_id, "play":play, "pause":pause, "stop":stop, "next":next}

def decode_len(msg):
	size, msg = msg.split(' ', 1)
	return int(size), msg

def decode_op(msg):
	op_len, msg = msg.split(' ', 1)
	op = msg[:int(op_len)]
	return op, msg[int(op_len) + 1:]

def decode_args(msg):
	if msg == "0":
		return []
	n_args, msg = msg.split(' ', 1)
	n_args = n_args
	args = []
	for i in xrange(int(n_args)):
		arg_len, msg = msg.split(' ', 1)
		args.append(msg[:int(arg_len)])
		msg = msg[int(arg_len) + 1:]
	return args


def decode(text):
	try:
		print "Decoding: %s" % text
		size, msg = decode_len(text)
		if size != len(msg):
			print "Message is wrong length!"
			return
	except:
		print "There was a problem receiving the message"
		return
	try:
		op, msg = decode_op(msg)
	except:
		print "There was a problem decoding the operation"
		return
	try:
		args    = decode_args(msg)
	except:
		print "There was a problem decoding the argumets"
		return
	try:
		procs[op](args)
	except:
		print "There was a problem running the operation"
		return

def serve():
	while 1:
		try:
			(client, address) = server.accept()
			message = client.recv(4096)
			decode(message)
		except:
			break

def start_server():
	global server
	# Set up a socket
	server = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
	try:
		ip = socket.gethostbyname(socket.gethostname())
		print "Remote server binding to: %s" % ip
		server.bind((ip, 4242))
	except:
		print "Could not open port 4242"
	server.listen(5)
	serve()

def start():
	threads.background(start_server)

def stop():
	server.shutdown(socket.SHUT_RDWR)

def check_version():
	if libsaria.__major__ != 1:
		return False
	if libsaria.__minor__ >= 2:
		return True
	return False