160 lines
5.8 KiB
Python
160 lines
5.8 KiB
Python
import errno
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import mimetypes
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from threading import Lock
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from apscheduler.triggers.cron import CronTrigger
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from YtManagerApp import scheduler
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from YtManagerApp.appconfig import settings
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from YtManagerApp.management.downloader import fetch_thumbnail, downloader_process_all, downloader_process_subscription
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from YtManagerApp.management.videos import create_video
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from YtManagerApp.models import *
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from YtManagerApp.utils.youtube import YoutubeAPI
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log = logging.getLogger('sync')
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__lock = Lock()
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_ENABLE_UPDATE_STATS = False
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def __check_new_videos_sub(subscription: Subscription, yt_api: YoutubeAPI):
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# Get list of videos
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for video in yt_api.list_playlist_videos(subscription.playlist_id):
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results = Video.objects.filter(video_id=video.getVideoId(), subscription=subscription)
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if len(results) == 0:
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log.info('New video for subscription %s: %s %s"', subscription, video.getVideoId(), video.getTitle())
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db_video = create_video(video, subscription)
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else:
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if not _ENABLE_UPDATE_STATS:
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continue
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db_video = results.first()
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# Update video stats - rating and view count
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stats = yt_api.get_single_video_stats(db_video.video_id)
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db_video.rating = stats.get_like_count() / (stats.get_like_count() + stats.get_dislike_count())
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db_video.views = stats.get_view_count()
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db_video.save()
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def __detect_deleted(subscription: Subscription):
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for video in Video.objects.filter(subscription=subscription, downloaded_path__isnull=False):
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found_video = False
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files = []
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try:
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files = list(video.get_files())
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except OSError as e:
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if e.errno != errno.ENOENT:
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log.error("Could not access path %s. Error: %s", video.downloaded_path, e)
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return
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# Try to find a valid video file
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for file in files:
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mime, _ = mimetypes.guess_type(file)
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if mime is not None and mime.startswith("video"):
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found_video = True
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# Video not found, we can safely assume that the video was deleted.
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if not found_video:
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log.info("Video %d was deleted! [%s %s]", video.id, video.video_id, video.name)
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# Clean up
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for file in files:
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try:
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os.unlink(file)
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except OSError as e:
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log.error("Could not delete redundant file %s. Error: %s", file, e)
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video.downloaded_path = None
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# Mark watched?
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if settings.getboolean_sub(subscription, 'user', 'MarkDeletedAsWatched'):
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video.watched = True
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video.save()
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def __fetch_thumbnails_obj(iterable, obj_type, id_attr):
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for obj in iterable:
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if obj.icon_default.startswith("http"):
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obj.icon_default = fetch_thumbnail(obj.icon_default, obj_type, getattr(obj, id_attr), 'default')
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if obj.icon_best.startswith("http"):
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obj.icon_best = fetch_thumbnail(obj.icon_best, obj_type, getattr(obj, id_attr), 'best')
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obj.save()
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def __fetch_thumbnails():
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# Fetch thumbnails
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log.info("Fetching channel thumbnails... ")
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__fetch_thumbnails_obj(Channel.objects.filter(icon_default__istartswith='http'), 'channel', 'channel_id')
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__fetch_thumbnails_obj(Channel.objects.filter(icon_best__istartswith='http'), 'channel', 'channel_id')
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log.info("Fetching subscription thumbnails... ")
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__fetch_thumbnails_obj(Subscription.objects.filter(icon_default__istartswith='http'), 'sub', 'playlist_id')
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__fetch_thumbnails_obj(Subscription.objects.filter(icon_best__istartswith='http'), 'sub', 'playlist_id')
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log.info("Fetching video thumbnails... ")
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__fetch_thumbnails_obj(Video.objects.filter(icon_default__istartswith='http'), 'video', 'video_id')
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__fetch_thumbnails_obj(Video.objects.filter(icon_best__istartswith='http'), 'video', 'video_id')
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def synchronize():
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if not __lock.acquire(blocking=False):
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# Synchronize already running in another thread
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log.info("Synchronize already running in another thread")
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return
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try:
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log.info("Running scheduled synchronization... ")
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# Sync subscribed playlists/channels
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log.info("Sync - checking videos")
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yt_api = YoutubeAPI.build_public()
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for subscription in Subscription.objects.all():
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__check_new_videos_sub(subscription, yt_api)
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__detect_deleted(subscription)
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log.info("Sync - checking for videos to download")
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downloader_process_all()
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log.info("Sync - fetching missing thumbnails")
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__fetch_thumbnails()
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log.info("Synchronization finished.")
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finally:
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__lock.release()
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def synchronize_subscription(subscription: Subscription):
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__lock.acquire()
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try:
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log.info("Running synchronization for single subscription %d [%s]", subscription.id, subscription.name)
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yt_api = YoutubeAPI.build_public()
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log.info("Sync - checking videos")
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__check_new_videos_sub(subscription, yt_api)
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__detect_deleted(subscription)
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log.info("Sync - checking for videos to download")
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downloader_process_subscription(subscription)
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log.info("Sync - fetching missing thumbnails")
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__fetch_thumbnails()
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log.info("Synchronization finished for subscription %d [%s].", subscription.id, subscription.name)
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finally:
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__lock.release()
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def schedule_synchronize_global():
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trigger = CronTrigger.from_crontab(settings.get('global', 'SynchronizationSchedule'))
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scheduler.instance.add_job(synchronize, trigger, max_instances=1, coalesce=True)
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def schedule_synchronize_now():
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scheduler.instance.add_job(synchronize, max_instances=1, coalesce=True)
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def schedule_synchronize_now_subscription(subscription: Subscription):
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scheduler.instance.add_job(synchronize_subscription, args=[subscription])
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