import urllib
import json



class bbc:
  def __init__(self):
    self.index=0

  def newline(self,id,title,channel,episode='',seriesnum='',episodenum=''):
    self.index=self.index+1
    try:
      srs=str(int(seriesnum.split()[-1]))
    except:
      srs=''  
    #index|type|name|pid|available|episode|seriesnum|episodenum|versions|duration|desc|channel|categories|thumbnail|timeadded|guidance|web
    line = '%d|%s|%s|%s|available|%s|%s|%s|versions|duration|desc|%s|categories|thumbnail|timeadded|guidance|web' % (self.index,self.service,title,id,episode,srs,episodenum,channel)
    print line.encode('utf-8')
    
  def child_episodes(self,master,child):
    #print "================== master ==============="
    #for kk in master.keys():
    #  try:
    #    print kk,'->',master[kk]
    #  except:
    #    print kk, '(???)'  
    #print "------------ child ----------"  
    channel=''
    if master.has_key('masterbrand_title'):
      channel=master['masterbrand_title']
    for episode in child:
      #for kk in episode.keys():
      #  try:
      #    print kk,'->',episode[kk].encode('utf-8')
      #  except:
      #    print kk, '(???)'  
      if channel=='' and episode.has_key('masterbrand_title'):
        channel=episode['masterbrand_title']
      self.newline(episode['id'],master['title'],channel,episode['title'],episode['series_title'],episode['position'])
  
  def scan_service(self,service,brand,letter):
     self.service=service
     url='http://www.bbc.co.uk/iplayer/ion/atoz/format/json/service_type/%s/masterbrand/%s/letter/%s/' % (service,brand,letter)
     r=json.load(urllib.urlopen(url))
     for programme in r['blocklist']:
        oldindex=self.index
        if programme.has_key('child_episodes'):
          self.child_episodes(programme,programme['child_episodes'])
        if programme.has_key('series'):
          for series in programme['series']:
            if series.has_key('child_episodes'):
              self.child_episodes(programme,series['child_episodes'])
        if oldindex==self.index:   
          self.newline(programme['id'],programme['title'],programme['masterbrand_title'])

    
  def scan(self):
    for brand in ('bbc_one','bbc_two','bbc_three','bbc_four'):
      for letter in 'abcdefghijklmnopqrstuvwxyz':
        self.scan_service('tv',brand,letter)
      

b=bbc()
b.scan()