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

from __future__ import unicode_literals

import os
import time
import xbmc
import xbmcgui
from resources.lib.proxy import Proxy
from resources.lib.addon import *
from resources.lib.log import LOG
from resources.lib import kodimov

def file_age(filename):
  """Seconds since the file was last written (or found unchanged)."""
  try:
    return time.time() - os.path.getmtime(filename)
  except OSError:
    return float('inf')

if __name__ == '__main__':
  LOG('Service started')
  proxy = Proxy()
  proxy.start()
  LOG('proxy_address: {}'.format(proxy.proxy_address))

  # Refreshes the TV guide channel list (new channels, new numbers) and the
  # programme guide a minute after Kodi starts and then every 6 hours; a
  # refresh that failed is tried again half an hour later. Opening the add-on
  # also renews the 10-day Movistar login.
  next_check = time.time() + 60
  max_age = 0  # always refresh once after Kodi starts
  new_api_retries = 6
  try:
    pvr_dir = translatePath(xbmcaddon.Addon('pvr.iptvsimple').getAddonInfo('profile'))
    restart_iptv = kodimov.remove_duplicate_instances(pvr_dir, 'kodimovplus')
    restart_iptv = kodimov.set_iptv_refresh(pvr_dir, 'kodimovplus') or restart_iptv
  except RuntimeError:  # IPTV Simple not installed or disabled
    pvr_dir = None
    restart_iptv = False
  player = xbmc.Player()
  monitor = xbmc.Monitor()
  while not monitor.abortRequested():
    if monitor.waitForAbort(1):
      break
    if restart_iptv and not player.isPlaying():  # restarting stops live TV
      restart_iptv = False
      kodimov.restart_iptv_simple()
    if time.time() >= next_check:
      next_check = time.time() + 30 * 60
      exporting = False
      # Movistar's channel numbers in Kodi's TV section, also when another
      # add-on (Radios de Vigo) adds its own IPTV Simple instance
      if pvr_dir and kodimov.has_iptv_instance(pvr_dir, 'kodimovplus'):
        kodimov.ensure_channel_numbers(os.path.join(profile_dir, 'numbers-set'))
      age_limit, max_age = max_age, 6 * 3600 - 120
      # After Kodi starts (or this add-on updates) also get the new guide into Kodi now
      reload_guide = '&reload_guide=1' if age_limit == 0 else ''
      # The new servers failed (they at times refuse everything for minutes):
      # the list lacks LALIGA, DAZN LALIGA, Liga de Campeones. Try again in
      # half an hour, a few times, instead of in 6 hours.
      if new_api_retries and kodimov.new_api_failed(profile_dir):
        new_api_retries -= 1
        age_limit = 0
        reload_guide = '&reload_guide=1'
      if addon.getSettingBool('auto_export_epg'):  # channels + programme guide
        if file_age(os.path.join(profile_dir, 'epg.xml')) > age_limit:
          exporting = True
          xbmc.executebuiltin('RunPlugin(plugin://plugin.video.kodimovplus/?action=export_epg_now&quiet=1' + reload_guide + ')')
      elif addon.getSettingBool('export_channels'):
        if file_age(os.path.join(profile_dir, 'channels.m3u8')) > age_limit:
          exporting = True
          xbmc.executebuiltin('RunPlugin(plugin://plugin.video.kodimovplus/?action=export_channels_now)')
      if not exporting:
        # Keeps the pass for the LALIGA / Liga de Campeones streams fresh
        xbmc.executebuiltin('RunPlugin(plugin://plugin.video.kodimovplus/?action=new_api_keep_warm)')

  proxy.stop()