public static IChannel CreateChannel(ChannelPOCO poco, string dirPath = null)
{
SiteType site = poco.Site;
IChannel channel = null;
switch (site)
{
case SiteType.YouTube:
channel = new YouChannel
{
ID = poco.ID,
Title = poco.Title,
SubTitle = poco.SubTitle, // .WordWrap(80);
Thumbnail = poco.Thumbnail,
CountNew = poco.Countnew,
UseFast = poco.UseFast
};
if (poco.Items != null)
{
foreach (VideoItemPOCO item in poco.Items)
{
channel.AddNewItem(VideoItemFactory.CreateVideoItem(item, site));
}
}
if (poco.Playlists != null)
{
foreach (PlaylistPOCO playlist in poco.Playlists)
{
channel.ChannelPlaylists.Add(PlaylistFactory.CreatePlaylist(playlist, site));
}
}
break;
case SiteType.RuTracker:
channel = null;
break;
case SiteType.Tapochek:
channel = null;
break;
}
if (channel == null)
{
throw new Exception(poco.ID);
}
if (dirPath != null)
{
channel.DirPath = dirPath;
}
channel.ChannelItemsCollectionView = CollectionViewSource.GetDefaultView(channel.ChannelItems);
return(channel);
}
public static IPlaylist CreateUploadPlaylist(IChannel ch, List <string> channel, byte[] thumbnail)
{
var pl = new YouPlaylist
{
Title = "Uploads",
PlItems = channel,
Thumbnail = thumbnail,
ChannelId = ch.ID,
ID = YouChannel.MakePlaylistUploadId(ch.ID),
SubTitle = "All items",
IsDefault = true
};
return(pl);
}
public static IChannel CreateChannel(SiteType site)
{
IChannel channel = null;
switch (site)
{
case SiteType.YouTube:
channel = new YouChannel();
break;
}
if (channel == null)
{
throw new Exception();
}
channel.ChannelItemsCollectionView = CollectionViewSource.GetDefaultView(channel.ChannelItems);
return(channel);
}
public static async Task SyncChannelAsync(IChannel channel,
bool isFastSync,
bool isSyncPls = false,
Action <IVideoItem, object> stateAction = null)
{
channel.ChannelState = ChannelState.InWork;
if (channel is YouChannel)
{
string pluploadsid = YouChannel.MakePlaylistUploadId(channel.ID);
// убираем признак предыдущей синхронизации
List <IVideoItem> preds = channel.ChannelItems.Where(x => x.SyncState == SyncState.Added).ToList();
foreach (IVideoItem item in preds)
{
item.SyncState = SyncState.Notset;
stateAction?.Invoke(item, SyncState.Notset);
}
if (channel.CountNew > 0)
{
channel.CountNew = 0;
await db.UpdateItemSyncState(SyncState.Notset, SyncState.Added, channel.ID).ConfigureAwait(false);
await db.UpdateChannelNewCountAsync(channel.ID, 0).ConfigureAwait(false);
}
// получаем списки id в базе и в нете
List <string> netids;
List <string> dbids;
if (isFastSync)
{
// быстрая проверка
if (channel.UseFast)
{
dbids = await db.GetChannelItemsIdListDbAsync(channel.ID, 0, 0, SyncState.Deleted).ConfigureAwait(false);
int netcount = await YouTubeSite.GetChannelItemsCountNetAsync(channel.ID).ConfigureAwait(true);
int resint = Math.Abs(netcount - dbids.Count) + 3; // буфер, можно регулировать
netids = await YouTubeSite.GetPlaylistItemsIdsListNetAsync(pluploadsid, resint).ConfigureAwait(true);
}
else
{
// некоторые каналы хотим проверять жестко (добавляют, удаляют часто)
dbids = await db.GetChannelItemsIdListDbAsync(channel.ID, 0, 0).ConfigureAwait(false);
netids = await YouTubeSite.GetPlaylistItemsIdsListNetAsync(pluploadsid, 0).ConfigureAwait(true);
await SetDeletedInDb(channel, dbids, netids);
}
}
else
{
// полная проверка
dbids = await db.GetChannelItemsIdListDbAsync(channel.ID, 0, 0).ConfigureAwait(false);
netids = await YouTubeSite.GetPlaylistItemsIdsListNetAsync(pluploadsid, 0).ConfigureAwait(true);
// проставляем в базе признак того, что видео больше нет на канале, а так же если видео было удалено, а теперь вернулось
await SetDeletedInDb(channel, dbids, netids);
}
// cобираем новые
List <string> trueids = netids.Where(netid => !dbids.Contains(netid)).ToList();
IEnumerable <List <string> > tchanks = trueids.SplitList();
foreach (List <string> list in tchanks)
{
List <VideoItemPOCO> trlist = await YouTubeSite.GetVideosListByIdsLiteAsync(list).ConfigureAwait(true);
IEnumerable <string> trueIds = from poco in trlist where poco.ParentID == channel.ID select poco.ID;
await InsertNewItems(trueIds, channel, null, dbids, stateAction).ConfigureAwait(true);
}
// обновим инфу о количестве новых после синхронизации
if (channel.CountNew > 0)
{
await db.UpdateChannelNewCountAsync(channel.ID, channel.CountNew).ConfigureAwait(false);
}
// синхронизовать также плейлисты (двойной клик с UI по каналу)
if (isSyncPls)
{
await SyncPlaylists(channel, dbids).ConfigureAwait(true);
}
int wnot = channel.ChannelItems.Count(x => x.WatchState != WatchState.Notset);
int snot = channel.ChannelItems.Count(x => x.SyncState != SyncState.Notset);
channel.IsHasNewFromSync = channel.ChannelItems.Any() && channel.ChannelItems.Count == wnot + snot + preds.Count;
}
channel.ChannelState = ChannelState.Notset;
}
