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path: root/MediaBrowser.Server.Implementations/LiveTv/ProgramImageProvider.cs
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using MediaBrowser.Common.Net;
using MediaBrowser.Controller.Entities;
using MediaBrowser.Controller.LiveTv;
using MediaBrowser.Controller.Providers;
using MediaBrowser.Model.Entities;
using MediaBrowser.Model.Logging;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
using MediaBrowser.Model.MediaInfo;

namespace MediaBrowser.Server.Implementations.LiveTv
{
    public class ProgramImageProvider : IDynamicImageProvider, IHasItemChangeMonitor, IHasOrder
    {
        private readonly ILiveTvManager _liveTvManager;
        private readonly IHttpClient _httpClient;
        private readonly ILogger _logger;

        public ProgramImageProvider(ILiveTvManager liveTvManager, IHttpClient httpClient, ILogger logger)
        {
            _liveTvManager = liveTvManager;
            _httpClient = httpClient;
            _logger = logger;
        }

        public IEnumerable<ImageType> GetSupportedImages(IHasImages item)
        {
            return new[] { ImageType.Primary };
        }

        public async Task<DynamicImageResponse> GetImage(IHasImages item, ImageType type, CancellationToken cancellationToken)
        {
            var liveTvItem = (LiveTvProgram)item;

            var imageResponse = new DynamicImageResponse();

            if (!string.IsNullOrEmpty(liveTvItem.ExternalImagePath))
            {
                if (liveTvItem.ExternalImagePath.StartsWith("http", StringComparison.OrdinalIgnoreCase))
                {
                    imageResponse.Path = liveTvItem.ExternalImagePath;
                    imageResponse.Protocol = MediaProtocol.Http;
                    imageResponse.HasImage = true;
                }
                else
                {
                    imageResponse.Path = liveTvItem.ExternalImagePath;
                    imageResponse.HasImage = true;
                }
            }
            else
            {
                var service = _liveTvManager.Services.FirstOrDefault(i => string.Equals(i.Name, liveTvItem.ServiceName, StringComparison.OrdinalIgnoreCase));

                if (service != null)
                {
                    try
                    {
                        var channel = _liveTvManager.GetInternalChannel(liveTvItem.ChannelId);

                        var response = await service.GetProgramImageAsync(liveTvItem.ExternalId, channel.ExternalId, cancellationToken).ConfigureAwait(false);

                        if (response != null)
                        {
                            imageResponse.HasImage = true;
                            imageResponse.Stream = response.Stream;
                            imageResponse.Format = response.Format;
                        }
                    }
                    catch (NotImplementedException)
                    {
                    }
                }
            }

            return imageResponse;
        }

        public string Name
        {
            get { return "Live TV Service Provider"; }
        }

        public bool Supports(IHasImages item)
        {
            return item is LiveTvProgram;
        }

        public int Order
        {
            get
            {
                // Let the better providers run first
                return 100;
            }
        }

        public bool HasChanged(IHasMetadata item, MetadataStatus status, IDirectoryService directoryService)
        {
            var liveTvItem = item as LiveTvProgram;

            if (liveTvItem != null)
            {
                return !liveTvItem.HasImage(ImageType.Primary);
            }
            return false;
        }
    }
}