import os

import subprocess

import fcntl

import lib.utils as utils

import lib.server as server

from select import select

def _setup_mythfilename(self):

    # mythtv:mythtv@192.168.3.110:6543/1002_20070426230000.nuv

    try:

        _mysql = self.args["input"].split("@")[0].split(":")

    except IndexError, e:

        _mysql = ["mythtv", "mythtv"]

    try:

        _args = self.args["input"].split("@")[1].split(":")

    except IndexError, e:

        _args = self.args["input"].split(":")

    gmyth_dict = {}

    gmyth_dict["mysql"] = _mysql

    gmyth_dict["backend"] = _args[0]

    gmyth_dict["port"] = _args[1].split("/", 1)[0]

    _tmp_file = _args[1].split("/", 1)[1]

    if _tmp_file.find("channel") >= 0:

        gmyth_dict["kind"] = "c"

        gmyth_dict["cfile"] = _tmp_file.split("=")[1]

    else:

        gmyth_dict["kind"] = "f"

        gmyth_dict["cfile"] = _tmp_file

    self.args["input"] = "-"

    return gmyth_dict

# _setup_mythfilename

def _setup_mythfile(err):

    size = err.readline().split("Size:")[1]

    flags = fcntl.fcntl (err, fcntl.F_GETFL, 0) | os.O_NONBLOCK

    fcntl.fcntl(err, fcntl.F_SETFL, flags)

    return size

# _setup_mythfile

def _setup_gmythcat(self):

    gmyth_cat = utils.which("gmyth-cat")

    if self.args.has_key("gmyth-cat"):

        return [ utils.which("gmyth-cat"),

                 "-h", self.args["gmyth-cat"]["backend"],

                 "-p", self.args["gmyth-cat"]["port"],

                 "-" + self.args["gmyth-cat"]["kind"],

                 self.args["gmyth-cat"]["cfile"]

                 ]

    else:

        self.log.error(self.tid, "Error: URI error")

        return []

# _setup_gmythcat

def start_myth(self, outfd):

    opts = _setup_gmythcat(self)

    try:

        self.gmyth = subprocess.Popen(opts, stdout=subprocess.PIPE,

                                      stderr=subprocess.PIPE,

                                      close_fds=True)

    except Exception, e:

        self.log.error(self.tid, "Error: gmyth-cat: %s" % e)

        return False

    if not self._run_mencoder(input=self.gmyth.stdout,

                              output=subprocess.PIPE):

        return False

    if self.args["gmyth-cat"]["kind"] == "f":

        try:

            size = _setup_mythfile(self.gmyth.stderr)

            self.log.debug(self.tid, "Info: Size of file: %s" % size)

        except Exception, e:

            self.log.error(self.tid, "Error: Problems getting size of"\

                           " file: %s" % e)

            return False

    try:

        while self.proc and self.proc.poll() == None:

            r, w, x = select([self.gmyth.stderr, self.proc.stdout],

                             [], [], 0)

            if self.proc.stdout in r:

                d = self.proc.stdout.read(4096)

                outfd.write(d)

            if self.gmyth.stderr in r:

                partial = self.gmyth.stderr.read(50).split("\n")[-2]

                if partial != "":

                    self.status = utils.progress_bar(int(partial),

                                                     int(size), 50)

    except IndexError, e:

        pass

    except Exception, e:

        self.log.error(self.tid, "Error: %s" % e)

        return False

    self.log.info(self.tid, "OK: Done")

    return True

# _start_myth()