/// <summary>
/// Async togle like state
/// </summary>
/// <param name="entityId">Change like status entity Id</param>
/// <param name="userName">Change like status user name</param>
/// <returns></returns>
public async Task TogleLikedStateAsync(string entityId, string userName)
{
var photo = await _unitOfWork.PhotoRepository.FindByIdAsync(entityId);
//check exist entity in DB
if (_unitOfWork.LikedEntityRepository.FindAll().Any(e => e.Id == entityId))
{
//check exist user in collection
var entity = await _unitOfWork.LikedEntityRepository.FindByIdAsync(entityId);
if (entity.Users.Any(u => u.UserName == userName))
{
var user = await _unitOfWork.UserManager.FindByNameAsync(userName);
//remove user from collection
entity.Users.Remove(user);
//decrease like count in photo data
photo.Raiting.VoicesCount--;
}
else
{
entity.Users.Add(await _unitOfWork.UserManager.FindByNameAsync(userName));
//increase like count
photo.Raiting.VoicesCount++;
}
//check cpacity collection
//if capacity = 0, remove entity from table
if (entity.Users.Count == 0)
{
_unitOfWork.LikedEntityRepository.Remove(entity);
}
await _unitOfWork.SaveASync();
}
else
{
var tempEntity = new LikedEntity()
{
Id = entityId
};
tempEntity.Users.Add(await _unitOfWork.UserManager.FindByNameAsync(userName));
_unitOfWork.LikedEntityRepository.Add(tempEntity);
//increase like count
photo.Raiting.VoicesCount++;
await _unitOfWork.SaveASync();
}
}
/// <summary>
/// Remove liked entity
/// </summary>
/// <param name="entity">liked entity</param>
public void Remove(LikedEntity entity)
{
_context.LikedEntities.Remove(entity);
}
/// <summary>
/// Update liked entity
/// </summary>
/// <param name="entity">liked entity for update</param>
/// <returns></returns>
public Task UpdateAsync(LikedEntity entity)
{
throw new NotImplementedException();
}
/// <summary>
/// Add liked entity
/// </summary>
/// <param name="entity">liked entity</param>
public void Add(LikedEntity entity)
{
_context.LikedEntities.Add(entity);
}
