#!/usr/bin/env python
# -*- coding: utf-8 -*-

###############################################################################
#   Copyright(c) 2008-2013 pyLoad Team
#   http://www.pyload.org
#
#   This program is free software: you can redistribute it and/or modify
#   it under the terms of the GNU Affero General Public License as
#   published by the Free Software Foundation, either version 3 of the
#   License, or (at your option) any later version.
#
#   Subjected to the terms and conditions in LICENSE
#
#   @author: spoob
#   @author: sebnapi
#   @author: RaNaN
#   @author: mkaay
#   @version: v0.5.0
###############################################################################

import os
import sys
from os import _exit

from pyload.Core import Core

def deamon():
    try:
        pid = os.fork()
        if pid > 0:
            sys.exit(0)
    except OSError, e:
        print >> sys.stderr, "fork #1 failed: %d (%s)" % (e.errno, e.strerror)
        sys.exit(1)

    # decouple from parent environment
    os.setsid()
    os.umask(0)

    # do second fork
    try:
        pid = os.fork()
        if pid > 0:
        # exit from second parent, print eventual PID before
            print "Daemon PID %d" % pid
            sys.exit(0)
    except OSError, e:
        print >> sys.stderr, "fork #2 failed: %d (%s)" % (e.errno, e.strerror)
        sys.exit(1)

    # Iterate through and close some file descriptors.
    for fd in range(0, 3):
        try:
            os.close(fd)
        except OSError:    # ERROR, fd wasn't open to begin with (ignored)
            pass

    os.open(os.devnull, os.O_RDWR)    # standard input (0)
    os.dup2(0, 1)            # standard output (1)
    os.dup2(0, 2)

    pyload_core = Core()
    pyload_core.start()


def main():
    #change name to 'pyLoadCore'
    #from module.lib.rename_process import renameProcess
    #renameProcess('pyLoadCore')
    if "--daemon" in sys.argv:
            deamon()
    else:
        pyload_core = Core()
        try:
            pyload_core.start()
        except KeyboardInterrupt:
            pyload_core.shutdown()
            pyload_core.log.info(_("killed pyLoad from terminal"))
            pyload_core.removeLogger()
            _exit(1)

# And so it begins...
if __name__ == "__main__":
    main()