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#!/usr/bin/env python
# This Python file uses the following encoding: utf-8
# GPL. (C) 2007-2009 Paolo Patruno.
from __future__ import print_function
from __future__ import absolute_import
from builtins import object
import os, sys
os.environ['DJANGO_SETTINGS_MODULE'] = 'autoradio.settings'
from django.conf import settings
import logging
import datetime
from .autoradio_config import *
from django.db.models import Q
from .spots.models import Configure
from .spots.models import Spot
from .spots.models import Fascia
from .spots.models import Giorno
import time
#used to get metadata from audio files
import mutagen
import tempfile,shutil
class gest_spot(object):
def __init__ (self,now,minelab,playlistdir):
"""init of spot application:
now : currenti datetime
minelab: minutes to elaborate
execute the right data retrival to get the schedued spots"""
import calendar
playlistpath=os.path.join(settings.MEDIA_ROOT, playlistdir)
try: # Create the date-based directory if it doesn't exist.
os.makedirs(playlistpath)
except OSError: # Directory probably already exists.
pass
self.now=now
self.minelab=minelab
self.playlistpath=playlistpath
ora=self.now.time()
self.oggi=self.now.date()
self.giorno=calendar.day_name[self.now.weekday()]
datesched_min=self.now - datetime.timedelta( seconds=60*self.minelab)
datesched_max=self.now + datetime.timedelta( milliseconds=60000*self.minelab-1) # 1 millisec tollerance
logging.debug( "SPOT: elaborate from %s to %s",datesched_min, datesched_max)
timesched_min=datesched_min.time()
timesched_max=datesched_max.time()
logging.debug( "SPOT: elaborate from %s to %s",timesched_min, timesched_max)
if (Configure.objects.filter(active__exact=False).count() == 1):
self.fasce=()
return
#todo: the use of ora here is not exact
if (Configure.objects.filter(emission_starttime__gt=ora).count() == 1) :
self.fasce=()
return
if (Configure.objects.filter(emission_endtime__lt=ora).count() == 1):
self.fasce=()
return
if (timesched_min < timesched_max):
self.fasce=Fascia.objects.filter(\
Q(emission_time__gte=timesched_min),Q( emission_time__lte=timesched_max),\
Q(active__exact = True)).order_by('emission_time')
else:
# here we are around midnight
self.fasce=Fascia.objects.filter(\
Q(emission_time__gte=timesched_min)|Q( emission_time__lte=timesched_max),\
Q(active__exact = True)).order_by('emission_time')
def get_fasce(self,genfile=True):
for fascia in self.fasce:
self.fascia=fascia
# count the spots
self.ar_spots_in_fascia=self.count_spots()
self.ar_filename,self.ar_url=self.get_fascia_playlist_media(genfile)
self.ar_scheduledatetime=datetime.datetime.combine(self.oggi, fascia.emission_time)
# if we are around midnight we have to check the correct date (today, iesterday, tomorrow)
datesched_min=self.now - datetime.timedelta( seconds=60*self.minelab)
datesched_max=self.now + datetime.timedelta( seconds=60*self.minelab)
if not (datesched_min <= self.ar_scheduledatetime and self.ar_scheduledatetime <= datesched_max ):
if self.now.time() < datetime.time(12):
self.ar_scheduledatetime=datetime.datetime.combine(datesched_min.date(), fascia.emission_time)
else:
self.ar_scheduledatetime=datetime.datetime.combine(datesched_max.date(), fascia.emission_time)
self.ar_emission_done=fascia.emission_done
yield fascia
def get_prologhi(self):
prologhi= self.fascia.spot_set.filter(Q(start_date__lte=self.now) | Q(start_date__isnull=True),\
Q(end_date__gte=self.now) | Q(end_date__isnull=True),\
Q(giorni__name__exact=self.giorno) , Q(prologo__exact=True)).order_by('priorita')
for prologo in prologhi:
logging.debug( 'SPOT: prologo: %s',prologo)
yield prologo
def count_spots(self):
return self.fascia.spot_set.filter(Q(start_date__lte=self.now) | Q(start_date__isnull=True),\
Q(end_date__gte=self.now) | Q(end_date__isnull=True),\
Q(giorni__name__exact=self.giorno)).exclude(prologo__exact=True)\
.exclude(epilogo__exact=True).count()
def get_spots(self):
spots=self.fascia.spot_set.filter(Q(start_date__lte=self.now) | Q(start_date__isnull=True),\
Q(end_date__gte=self.now) | Q(end_date__isnull=True),\
Q(giorni__name__exact=self.giorno)).exclude(prologo__exact=True)\
.exclude(epilogo__exact=True).order_by('priorita')
for spot in spots:
logging.debug('SPOT: spot: %s',spot)
yield spot
def get_epiloghi(self):
epiloghi=self.fascia.spot_set.filter(Q(start_date__lte=self.now) | Q(start_date__isnull=True),\
Q(end_date__gte=self.now) | Q(end_date__isnull=True),\
Q(giorni__name__exact=self.giorno) , Q(epilogo__exact=True)).order_by('priorita')
for epilogo in epiloghi:
logging.debug ('SPOT: epilogo: %s',epilogo)
yield epilogo
def get_fascia_spots(self):
if (self.ar_spots_in_fascia == 0):
# I have found an empty fascia
return
for prologo in self.get_prologhi():
yield prologo
for spot in self.get_spots():
yield spot
for epilogo in self.get_epiloghi():
yield epilogo
def get_fascia_playlist_media(self,genfile=True):
name=self.fascia.name+".m3u"
url=os.path.join(os.path.join(settings.MEDIA_URL, playlistdir),name)
playlistname =os.path.join(self.playlistpath,name)
if genfile :
# os.umask(002)
# f = open(playlistname, "w")
fd,tmpfile=tempfile.mkstemp()
f=os.fdopen(fd,"w")
# f = open(tmpfile, "w")
# f=tempfile.TemporaryFile()
length=0
for spot in self.get_fascia_spots():
filename=spot.file.path
# filename=spot.get_file_filename()
#print >>f, os.path.basename(filename)
logging.debug( "SPOT: include %s", filename)
if genfile :
# this work if LANG is set
#f.write(os.path.basename(filename.encode(sys.getfilesystemencoding())))
#f.write(os.path.basename(filename.encode("UTF-8")))
f.write(filename.encode("UTF-8"))
f.write("\n")
# calcolo la lunghezza della fascia
try:
filename=filename.encode("utf8")
onelength=mutagen.File(filename).info.length
logging.debug("SPOT: computed the partial time length: %d",onelength)
length=length+onelength
except:
logging.error( "SPOT: error establish time length; use an estimation %s", filename)
length=length+30
self.ar_length=length
logging.debug("SPOT: computed total time length: %d",self.ar_length)
if genfile :
f.close()
os.chmod(tmpfile,0o644)
#sometime I get:
#shutil.move(tmpfile,playlistname)
#File "/usr/lib64/python2.7/shutil.py", line 301, in move
#copy2(src, real_dst)
#File "/usr/lib64/python2.7/shutil.py", line 130, in copy2
#copyfile(src, dst)
#File "/usr/lib64/python2.7/shutil.py", line 83, in copyfile
#with open(dst, 'wb') as fdst:
# IOError: [Errno 11] Risorsa temporaneamente non disponibile: u'/home/autoradio/media/pubblicita/ore 13.30.m3u'
# so I try to do it in a delayed loop
ntry=0
while True:
try:
shutil.move(tmpfile,playlistname)
logging.debug("SPOT: moved the playlist %s in %s",tmpfile,playlistname)
break
except:
logging.warning("SPOT: error moving the playlist %s in %s",tmpfile,playlistname)
ntry +=1
if ntry > 5:
logging.error("SPOT: cannot move the playlist %s in %s",tmpfile,playlistname)
break
time.sleep(1)
return playlistname,url
def main():
logging.basicConfig(level=logging.DEBUG,)
now=datetime.datetime.now()
spots=gest_spot(now,minelab,"/tmp/")
for fascia in spots.get_fasce(genfile=True):
#print "elaborate fascia >>",fascia
for spot in spots.get_fascia_spots():
pass
#print "fascia and spot ->",spots.fascia,spot
print(spots.ar_filename)
print(spots.ar_scheduledatetime)
print(spots.ar_length)
print(spots.ar_spots_in_fascia)
if __name__ == '__main__':
main() # (this code was run as script)
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