private async void CommandHandler(object sender, ExecutedRoutedEventArgs args)
{
try
{
if (inCommand)
{
return;
}
inCommand = true;
var twitterStatus = StatusFromParameter(args.Parameter);
if (twitterStatus is not null)
{
var screenName = twitterStatus.User.ScreenName;
if (screenName is null)
{
return;
}
if (twitterStatus.User.IsFollowing)
{
await TwitterService.Unfollow(screenName).ConfigureAwait(true);
var user = twitterStatus.User;
if (user is not null)
{
user.Followers = Math.Max(0, user.Followers - 1);
user.IsFollowing = false;
}
}
else
{
await TwitterService.Follow(screenName).ConfigureAwait(true);
var user = twitterStatus.User;
if (user is not null)
{
user.Followers++;
user.IsFollowing = true;
}
}
}
}
catch (Exception ex)
{
await MessageBoxService.ShowMessageBoxAsync(ex.Message).ConfigureAwait(false);
}
finally
{
inCommand = false;
}
}
