//add Fav
public async Task AddFavourite(FavouriteRequestModel fav)
{
//check if fav already exits
if (await FavExist(fav.UserId, fav.MovieId))
{
throw new Exception("Movie already exists");
}
var favourite = _mapper.Map <Favourite>(fav);
await _favRepository.AddAsync(favourite);
}
public async Task RemoveFavorite(FavouriteRequestModel fav)
{
var dbFav = await _favRepository.ListAsync(f => f.UserId == fav.UserId && f.MovieId == fav.MovieId);
await _favRepository.DeleteAsync(dbFav.First());
}
