/// <summary>
/// Provides a timeline view model populated by using the configuration for the given timeline.
/// </summary>
public TimelineViewModel PrepareTimelineViewModel(string TimelineNameOrId, bool isId = false)
{
var config = SocialAllianceConfig.Read();
var timelineConfig = config.ReadTimeline(TimelineNameOrId, isId);
if (timelineConfig == null)
{
ErrorText = "There is no timeline configured with this name or Id: " + TimelineNameOrId;
return null;
}
var timeline = new TimelineViewModel(timelineConfig);
// TODO: Get YouTube timelines from config.
List<YouTubeProvider> youTubeProviders = GetYouTubeProvidersFromConfig(timelineConfig.YouTubeProviders);
List<TwitterProvider> twitterProviders = GetTwitterProvidersFromConfig(timelineConfig.TwitterProviders);
// If providerConfig configured for any social account, fetch data.
if (youTubeProviders.Any() || twitterProviders.Any())
{
if (youTubeProviders.Count > 1 && timeline.SingleUser == true)
{
ErrorText = "The timeline was specified to be for only one user, but more than one YouTube feed was requested.";
timeline.SingleUser = false;
}
if (twitterProviders.Count > 1 && timeline.SingleUser == true)
{
ErrorText = "The timeline was specified to be for only one user, but more than one Twitter timeline feed was requested.";
timeline.SingleUser = false;
}
if (!timeline.SingleUser)
{
// Update the setting for user details in tweets for both Twitter request calls and display settings.
UserDetailsInTweet = CorrectIncludeUserDetailsInTweet(twitterProviders);
}
// TODO: Optional? Modify to show publish time in tweets only?
var providers = new List<ISocialProvider>(youTubeProviders).Concat(twitterProviders).ToList();
HowLongSincePublished = HowLongSincePublishedConsistency(providers);
if (timeline.SingleUser)
{
timeline = SingleUserTimelineViewModel(timeline, youTubeProviders.ElementAt(0), twitterProviders.ElementAt(0));
}
else
{
timeline = MultipleUsersTimelineViewModel(timeline, youTubeProviders, twitterProviders);
}
}
return timeline;
}
/// <summary>
/// Prepares a merged or unmerged timeline including user information.
/// </summary>
private TimelineViewModel SingleUserTimelineViewModel(TimelineViewModel timeline, YouTubeProvider youTube, TwitterProvider twitter)
{
if (youTube != null)
{
var youTubeErrorText = "";
timeline.YouTubeAccount = youTube.GetYouTubeUserData(out youTubeErrorText);
ErrorText += youTubeErrorText;
}
if (twitter != null)
{
var twitterErrorText = "";
timeline.TwitterAccount = twitter.GetTwitterUserData(out twitterErrorText);
ErrorText += twitterErrorText;
}
// If user-related request errors exist, return without attempting to load the timeline data.
if (ErrorText != "")
{
return null;
}
else
{
ErrorText = null;
}
if (timeline.Merged)
{
var mergedTimeline = new List<ISocialEntry>(timeline.TwitterAccount.Tweets);
mergedTimeline = mergedTimeline.Concat(timeline.YouTubeAccount.Playlists.ElementAt(0).Entries).ToList();
mergedTimeline.Sort(new SocialEntriesRecentDateFirstComparer());
timeline.RecentActivity = mergedTimeline;
}
else
{
timeline.TwitterAccount.Tweets.ToList().Sort(new SocialEntriesRecentDateFirstComparer());
timeline.YouTubeAccount.Playlists.ElementAt(0).Entries.ToList().Sort(new SocialEntriesRecentDateFirstComparer());
}
return timeline;
}
/// <summary>
/// Prepares a merged or unmerged timeline for multiple users.
/// </summary>
private TimelineViewModel MultipleUsersTimelineViewModel(TimelineViewModel timeline, IList<YouTubeProvider> youTubeProviders, IList<TwitterProvider> twitterProviders)
{
var youTubeTimeline = new List<Video>();
var twitterTimeline = new List<Tweet>();
foreach (var entry in youTubeProviders)
{
youTubeTimeline = youTubeTimeline.Concat(entry.GetChannelVideos()).ToList();
}
foreach (var entry in twitterProviders)
{
twitterTimeline = twitterTimeline.Concat(entry.GetTwitterUserTimeline()).ToList();
}
if (timeline.Merged)
{
var mergedTimeline = new List<ISocialEntry>(twitterTimeline).Concat(youTubeTimeline).ToList();
mergedTimeline.Sort(new SocialEntriesRecentDateFirstComparer());
timeline.RecentActivity = mergedTimeline;
}
else
{
twitterTimeline.Sort(new SocialEntriesRecentDateFirstComparer());
youTubeTimeline.Sort(new SocialEntriesRecentDateFirstComparer());
timeline.TwitterAccount = new TwitterTimelineViewModel(twitterTimeline);
var playlist = new List<Playlist>();
playlist.Add(new Playlist(youTubeTimeline));
timeline.YouTubeAccount = new YouTubeVideoChannelViewModel(playlist);
}
return timeline;
}