/// <summary>
/// Called when a reaction has been uploaded. This will
/// post the reaction and notify the vlog owner.
/// </summary>
/// <remarks>
/// <para>
/// The reaction will belong to the current user.
/// </para>
/// <para>
/// If the video file or thumbnail file does not
/// exist in our blob storage this throws a
/// <see cref="FileNotFoundException"/>.
/// </para>
/// </remarks>
/// <param name="context">Context for posting a reaction.</param>
public async Task PostAsync(PostReactionContext context)
{
if (context is null)
{
throw new ArgumentNullException(nameof(context));
}
if (!await _blobStorageService.FileExistsAsync(StorageConstants.ReactionStorageFolderName, context.ReactionId.ToString()))
{
throw new FileNotFoundException();
}
var reaction = new Reaction
{
Id = context.ReactionId,
TargetVlogId = context.TargetVlogId,
UserId = context.UserId,
};
await _reactionRepository.CreateAsync(reaction);
var targetVlog = await _vlogRepository.GetAsync(context.TargetVlogId);
await _notificationService.NotifyReactionPlacedAsync(targetVlog.UserId, context.TargetVlogId, context.ReactionId);
}