62 lines
2.2 KiB
C#
62 lines
2.2 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Threading.Tasks;
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using MediaBrowser.Common.Net.Handlers;
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using MediaBrowser.Controller;
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using MediaBrowser.Model.DTO;
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using MediaBrowser.Model.Entities;
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namespace MediaBrowser.Api.HttpHandlers
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{
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public class GenresHandler : BaseSerializationHandler<IEnumerable<IBNItem>>
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{
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protected override Task<IEnumerable<IBNItem>> GetObjectToSerialize()
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{
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Folder parent = ApiService.GetItemById(QueryString["id"]) as Folder;
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Guid userId = Guid.Parse(QueryString["userid"]);
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User user = Kernel.Instance.Users.First(u => u.Id == userId);
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return GetAllGenres(parent, user);
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}
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/// <summary>
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/// Gets all genres from all recursive children of a folder
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/// The CategoryInfo class is used to keep track of the number of times each genres appears
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/// </summary>
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private async Task<IEnumerable<IBNItem>> GetAllGenres(Folder parent, User user)
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{
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Dictionary<string, int> data = new Dictionary<string, int>();
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// Get all the allowed recursive children
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IEnumerable<BaseItem> allItems = parent.GetParentalAllowedRecursiveChildren(user);
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foreach (var item in allItems)
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{
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// Add each genre from the item to the data dictionary
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// If the genre already exists, increment the count
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if (item.Genres == null)
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{
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continue;
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}
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foreach (string val in item.Genres)
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{
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if (!data.ContainsKey(val))
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{
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data.Add(val, 1);
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}
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else
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{
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data[val]++;
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}
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}
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}
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IEnumerable<Genre> entities = await Task.WhenAll<Genre>(data.Keys.Select(key => { return Kernel.Instance.ItemController.GetGenre(key); })).ConfigureAwait(false);
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return entities.Select(e => ApiService.GetIBNItem(e, data[e.Name]));
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}
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}
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}
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