#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
# Copyright 2010 Maurizio Porrato <maurizio.porrato@gmail.com>
# See LICENSE.txt for copyright info

import subprocess
from frn.protocol.client import FRNClient, FRNClientFactory
from frn.user import FRNUser
from twisted.internet import reactor, task
from twisted.internet.defer import DeferredList
from twisted.python import log
import os, string
from Queue import Queue
from twisted.internet.task import LoopingCall
import fcntl

STREAM_CMD="""tools/gsmdecode|ffmpeg -ar 8000 -ac 1 -f s16le -i /dev/stdin http://127.0.0.1:8090/feed.ffm"""

silence_frame = open("sounds/silence-gsm.gsm", "rb").read()

class FRNStream(FRNClient):

    def __init__(self):
        self._frames = Queue()
        self._stream = subprocess.Popen(STREAM_CMD, shell=True,
            stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
        self._streamtimer = LoopingCall.withCount(self.sendStreamFrame)
        self._streamtimer.start(0.20)

    def getClientName(self, client_id):
        if self.clientsById.has_key(client_id):
            return self.clientsById[client_id]['on']
        else:
            return client_id

    def audioFrameReceived(self, from_id, frames):
        self._frames.put_nowait(frames)
        self.pong()

    def sendStreamFrame(self, count):
        for i in range(count):
            if self._frames.empty():
                frames = silence_frame
            else:
                frames = self._frames.get_nowait()
            self._stream.stdin.write(frames)
            self._stream.stdin.flush()
            self._stream.stdout.flush()
            self._stream.stderr.flush()

    def loginResponse(self, info):
        log.msg("Login: %s" % info['al'])

    def clientsListUpdated(self, clients):
        self.clients = clients
        self.clientsById = dict([(i['id'], i) for i in clients])


class FRNStreamFactory(FRNClientFactory):
    protocol = FRNStream
    reactor = reactor


if __name__ == '__main__':
    import sys
    from os.path import dirname, join as pjoin
    from ConfigParser import ConfigParser

    log.startLogging(sys.stderr)

    basedir = dirname(__file__)

    acfg = ConfigParser()
    acfg.read(['/etc/grn/accounts.conf',
        pjoin(basedir,'accounts.conf'), 'accounts.conf'])

    scfg = ConfigParser()
    scfg.read(['/etc/grn/servers.conf',
        pjoin(basedir,'servers.conf'), 'servers.conf'])

    argc = len(sys.argv)
    if argc >= 3:
        server_name, network_name = sys.argv[2].split(':',1)
        account_cfg = acfg.items(sys.argv[1])+[('network', network_name)]
        server_cfg = scfg.items(server_name)
        server = scfg.get(server_name, 'server')
        port = scfg.getint(server_name, 'port')

        d = dict(account_cfg)
        user = FRNUser(
            EA=d['email'],
            PW=d['password'], ON=d['operator'],
            BC=d['transmission'], DS=d['description'],
            NN=d['country'], CT=d['city'], NT=d['network'])
        reactor.connectTCP(server, port, FRNStreamFactory(user))
        reactor.run()


# vim: set et ai sw=4 ts=4 sts=4: