public void AddUpdate(StoredChannel item, NotificationSetting setting = null)
{
bool exists = Exists(item.ChannelId);
if (!exists)
{
Channels.Add(item);
if (setting == null)
{
setting = new NotificationSetting(item.ChannelId);
Save(setting);
}
Settings.Add(setting);
Save(item);
}
else
{
int index = FindIndexOfChannelId(item.ChannelId);
Channels[index] = item;
Update(item);
if (setting != null)
{
int settingIndex = FindIndexOfSettingId(item.ChannelId);
Settings[settingIndex] = setting;
Update(setting);
}
}
}
private void Update(StoredChannel channel)
{
lock (CollisionLock)
{
DbConnection.UpdateAsync(channel);
}
}
private void Save(StoredChannel channel)
{
lock (CollisionLock)
{
DbConnection.InsertAsync(channel);
}
}
private void SetupSubscribes()
{
MessagingCenter.Subscribe <ChannelsAddRemoveEvent>(this, EVENT_ADDREMOVE, (addRemoveEvent) =>
{
string channelId = addRemoveEvent.Id;
if (addRemoveEvent.Add)
{
StoredChannel channel = App.ChannelsDatastore.Get(channelId);
Channels.Add(channel);
GetChannelActivity(channel, false);
}
else
{
var channel = Channels.First(c => c.ChannelId == channelId);
if (channel != null)
{
Channels.Remove(channel);
}
if (App.ChannelsDatastore.Exists(channel.ChannelId))
{
App.ChannelsDatastore.Delete(channel.ChannelId);
}
}
});
}
void Handle_ItemTapped(object sender, Xamarin.Forms.ItemTappedEventArgs e)
{
StoredChannel item = (StoredChannel)e.Item;
NotificationSetting settings = App.ChannelsDatastore.GetSetting(item.ChannelId);
NotificationSettings notificationSettingsView = new NotificationSettings(settings);
Navigation.PushModalAsync(notificationSettingsView);
}
public bool Delete(string id)
{
StoredChannel channel = Get(id);
Channels.Remove(channel);
NotificationSetting setting = Settings.First(c => channel.ChannelId == id);
Settings.Remove(setting);
DeleteChannel(channel.ChannelId);
DeleteSetting(channel.ChannelId);
return(true);
}
private void OnActivityReceive(ChannelActivityEvent activityEvent)
{
StoredChannel channel = Channels.First(c => c.ChannelId == activityEvent.ChannelId);
YoutubeActivity latest = activityEvent.Result.items.OrderByDescending(act => act.Snippet.PublishedAt).First();
channel.NewVideo = channel.LastVideoId == null || !channel.LastVideoId.Equals(latest.VideoId);
channel.LastVideoId = latest.VideoId;
channel.LastVideoImageLink = latest.ImageLink;
channel.LastVideoTitle = latest.Snippet.Title;
channel.LastVideoTime = latest.Snippet.PublishedAt.ToShortDateString() + " " + latest.Snippet.PublishedAt.ToShortTimeString();
channel.Activity = latest;
channel.Searching = false;
App.ChannelsDatastore.AddUpdate(channel);
}
private void GetChannelActivity(StoredChannel channel, bool force)
{
IYoutube api = new YoutubeApi();
channel.Searching = true;
if (channel.Activity == null || force)
{
Task.Run(() => {
Task <YoutubeCall <YoutubeActivity> > result = Task.Run(() => api.GetChannelActivity(channel.ChannelId));
var webResult = result.Result;
OnActivityReceive(new ChannelActivityEvent(channel.ChannelId, webResult));
});
}
}
public StoredChannel Get(string id)
{
StoredChannel channel = Channels.Find(chan => chan.ChannelId == id);
return(channel);
}