using MediaBrowser.Controller.Entities;
using MediaBrowser.Controller.Entities.Movies;
using MediaBrowser.Controller.Library;
using MediaBrowser.Controller.Persistence;
using ServiceStack.ServiceHost;

namespace MediaBrowser.Api
{
    /// <summary>
    /// Class GetSimilarMovies
    /// </summary>
    [Route("/Movies/{Id}/Similar", "GET")]
    [Api(Description = "Finds movies and trailers similar to a given movie.")]
    public class GetSimilarMovies : BaseGetSimilarItemsFromItem
    {
        [ApiMember(Name = "IncludeTrailers", Description = "Whether or not to include trailers within the results. Defaults to true.", IsRequired = false, DataType = "bool", ParameterType = "query", Verb = "GET")]
        public bool IncludeTrailers { get; set; }

        public GetSimilarMovies()
        {
            IncludeTrailers = true;
        }
    }

    /// <summary>
    /// Class MoviesService
    /// </summary>
    public class MoviesService : BaseApiService
    {
        /// <summary>
        /// The _user manager
        /// </summary>
        private readonly IUserManager _userManager;

        /// <summary>
        /// The _user data repository
        /// </summary>
        private readonly IUserDataRepository _userDataRepository;
        /// <summary>
        /// The _library manager
        /// </summary>
        private readonly ILibraryManager _libraryManager;

        private readonly IItemRepository _itemRepo;
        
        /// <summary>
        /// Initializes a new instance of the <see cref="MoviesService"/> class.
        /// </summary>
        /// <param name="userManager">The user manager.</param>
        /// <param name="userDataRepository">The user data repository.</param>
        /// <param name="libraryManager">The library manager.</param>
        public MoviesService(IUserManager userManager, IUserDataRepository userDataRepository, ILibraryManager libraryManager, IItemRepository itemRepo)
        {
            _userManager = userManager;
            _userDataRepository = userDataRepository;
            _libraryManager = libraryManager;
            _itemRepo = itemRepo;
        }

        /// <summary>
        /// Gets the specified request.
        /// </summary>
        /// <param name="request">The request.</param>
        /// <returns>System.Object.</returns>
        public object Get(GetSimilarMovies request)
        {
            var result = SimilarItemsHelper.GetSimilarItemsResult(_userManager,
                _itemRepo,
                _libraryManager,
                _userDataRepository,
                Logger,
                request, item => item is Movie || (item is Trailer && request.IncludeTrailers),
                SimilarItemsHelper.GetSimiliarityScore);

            return ToOptimizedResult(result);
        }
    }
}