private async Task <Tuple <string, string> > ResolveSubscriptionSourceLabel(SubscriptionSource source)
{
switch (source.SourceType)
{
case SubscriptionSourceType.User:
var info = await UserProvider.GetUser(source.Parameter);
return(new Tuple <string, string>(info.ScreenName, null));
case SubscriptionSourceType.Channel:
var channelInfo = await ChannelProvider.GetChannelInfo(source.Parameter);
return(new Tuple <string, string>(channelInfo.Name, null));
case SubscriptionSourceType.Mylist:
var mylistInfo = await MylistProvider.GetMylistGroupDetail(source.Parameter);
var mylistOwner = await UserProvider.GetUser(mylistInfo.MylistGroup.UserId);
return(new Tuple <string, string>(mylistInfo.MylistGroup.Name, mylistOwner.ScreenName));
case SubscriptionSourceType.TagSearch:
return(new Tuple <string, string>(source.Parameter, null));
case SubscriptionSourceType.KeywordSearch:
return(new Tuple <string, string>(source.Parameter, null));
default:
break;
}
return(null);
}
private async Task <SubscriptionUpdateInfo> GetFeedResult(Subscription subscription, SubscriptionSource source)
{
if (subscription.IsDeleted)
{
return(new SubscriptionUpdateInfo()
{
Subscription = subscription, Source = source
});
}
TimeSpan timeDiffarenceFromJapan = +TimeSpan.FromHours(9) - DateTimeOffset.Now.Offset;
var feedResult = Database.Local.Subscription.SubscriptionFeedResultDb.GetEnsureFeedResult(subscription);
var feedResultSet = feedResult.GetFeedResultSet(source);
var lastUpdated = feedResultSet != null ? feedResultSet.LastUpdated + timeDiffarenceFromJapan : DateTime.MinValue;
var isFirstUpdate = feedResultSet == null;
List <Database.NicoVideo> items = null;
switch (source.SourceType)
{
case SubscriptionSourceType.User:
items = await GetUserVideosFeedResult(source.Parameter, UserProvider);
break;
case SubscriptionSourceType.Channel:
items = await GetChannelVideosFeedResult(source.Parameter, ChannelProvider);
break;
case SubscriptionSourceType.Mylist:
items = await GetMylistFeedResult(source.Parameter, MylistProvider);
break;
case SubscriptionSourceType.TagSearch:
items = await GetTagSearchFeedResult(source.Parameter, SearchProvider);
break;
case SubscriptionSourceType.KeywordSearch:
items = await GetKeywordSearchFeedResult(source.Parameter, SearchProvider);
break;
default:
break;
}
// 降順（新しい動画を先に）にしてから、前回更新時までのアイテムを取得する
var newItems = items.OrderByDescending(x => x.PostedAt).TakeWhile(x => x.PostedAt > lastUpdated);
Database.Local.Subscription.SubscriptionFeedResultDb.AddOrUpdateFeedResult(subscription, source, newItems.Select(x => x.VideoId));
return(new SubscriptionUpdateInfo()
{
Subscription = subscription,
Source = source,
FeedItems = items,
NewFeedItems = newItems,
IsFirstUpdate = isFirstUpdate,
});
}
