jellyfin/MediaBrowser.Api/UserLibrary/YearsService.cs

using System;
using System.Collections.Generic;
using System.Linq;
using MediaBrowser.Controller.Configuration;
using MediaBrowser.Controller.Dto;
using MediaBrowser.Controller.Entities;
using MediaBrowser.Controller.Library;
using MediaBrowser.Controller.Net;
using MediaBrowser.Model.Dto;
using MediaBrowser.Model.Services;
using Microsoft.Extensions.Logging;

namespace MediaBrowser.Api.UserLibrary
{
    /// <summary>
    /// Class GetYears
    /// </summary>
    [Route("/Years", "GET", Summary = "Gets all years from a given item, folder, or the entire library")]
    public class GetYears : GetItemsByName
    {
    }

    /// <summary>
    /// Class YearsService
    /// </summary>
    [Authenticated]
    public class YearsService : BaseItemsByNameService<Year>
    {
        public YearsService(
            ILogger<YearsService> logger,
            IServerConfigurationManager serverConfigurationManager,
            IHttpResultFactory httpResultFactory,
            IUserManager userManager,
            ILibraryManager libraryManager,
            IUserDataManager userDataRepository,
            IDtoService dtoService,
            IAuthorizationContext authorizationContext)
            : base(
                logger,
                serverConfigurationManager,
                httpResultFactory,
                userManager,
                libraryManager,
                userDataRepository,
                dtoService,
                authorizationContext)
        {
        }

        /// <summary>
        /// Gets the specified request.
        /// </summary>
        /// <param name="request">The request.</param>
        /// <returns>System.Object.</returns>
        public object Get(GetYears request)
        {
            var result = GetResult(request);

            return ToOptimizedResult(result);
        }

        /// <summary>
        /// Gets all items.
        /// </summary>
        /// <param name="request">The request.</param>
        /// <param name="items">The items.</param>
        /// <returns>IEnumerable{Tuple{System.StringFunc{System.Int32}}}.</returns>
        protected override IEnumerable<BaseItem> GetAllItems(GetItemsByName request, IList<BaseItem> items)
        {
            return items
                .Select(i => i.ProductionYear ?? 0)
                .Where(i => i > 0)
                .Distinct()
                .Select(year => LibraryManager.GetYear(year));
        }
    }
}