89 lines
3.2 KiB
Python
89 lines
3.2 KiB
Python
# -*- coding: utf-8 -*-
|
|
# vi:si:et:sw=4:sts=4:ts=4
|
|
from __future__ import division, with_statement
|
|
from datetime import datetime, timedelta
|
|
from random import randint
|
|
|
|
from django.db import models
|
|
from django.db.models import Max
|
|
from django.conf import settings
|
|
|
|
from item.models import Item
|
|
|
|
|
|
class Channel(models.Model):
|
|
created = models.DateTimeField(auto_now_add=True)
|
|
modified = models.DateTimeField(auto_now=True)
|
|
|
|
run = models.IntegerField(default=0)
|
|
list = models.ForeignKey('itemlist.List', related_name='channel', null=True, unique=True, blank=True)
|
|
|
|
def __unicode__(self):
|
|
return u"%s %s" % (self.list or 'All', self.run)
|
|
|
|
def json(self, user):
|
|
now = datetime.now()
|
|
cansee = settings.CONFIG['capabilities']['canSeeItem']['guest']
|
|
if self.list:
|
|
items = self.list.get_items(self.list.user).filter(rendered=True, level__lte=cansee)
|
|
else:
|
|
items = Item.objects.filter(rendered=True, level__lte=cansee)
|
|
if items.count() == 0:
|
|
return {}
|
|
|
|
program = self.program.order_by('-start')
|
|
changed = False
|
|
while program.count() < 1 or program[0].end < now:
|
|
not_played = items.exclude(program__in=self.program.filter(run=self.run))
|
|
not_played_count = not_played.count()
|
|
if not_played_count == 0:
|
|
self.run += 1
|
|
changed = True
|
|
not_played = items
|
|
not_played_count = not_played.count()
|
|
if not_played_count > 1:
|
|
not_played = not_played.exclude(id=program[0].id)
|
|
not_played_count = not_played.count()
|
|
item = not_played[randint(0, not_played_count-1)]
|
|
if program.count() > 0:
|
|
start = program.aggregate(Max('end'))['end__max']
|
|
else:
|
|
start = now
|
|
p = Program()
|
|
p.item = item
|
|
p.run = self.run
|
|
p.start = start
|
|
p.end = start + timedelta(seconds=item.get_json()['duration'])
|
|
p.channel = self
|
|
p.save()
|
|
program = self.program.order_by('-start')
|
|
if changed:
|
|
self.save()
|
|
return program[0].json(user, now)
|
|
|
|
class Program(models.Model):
|
|
created = models.DateTimeField(auto_now_add=True)
|
|
modified = models.DateTimeField(auto_now=True)
|
|
run = models.IntegerField(default=0)
|
|
start = models.DateTimeField()
|
|
end = models.DateTimeField()
|
|
item = models.ForeignKey('item.Item', related_name='program')
|
|
channel = models.ForeignKey(Channel, related_name='program')
|
|
|
|
def __unicode__(self):
|
|
return u"%s %s" % (self.item, self.start)
|
|
|
|
def json(self, user, current=False):
|
|
item_json = self.item.get_json()
|
|
r = {
|
|
'item': self.item.itemId,
|
|
}
|
|
for key in ('title', 'director', 'year', 'durations', 'parts', 'rightslevel'):
|
|
r[key] = item_json.get(key, '')
|
|
r['layers'] = self.item.get_layers(user)
|
|
if current:
|
|
#requires python2.7
|
|
#r['position'] = (current - self.start).total_seconds()
|
|
td = current - self.start
|
|
r['position'] = td.seconds + td.days * 24 * 3600 + float(td.microseconds)/10**6
|
|
return r
|