jellyfin-server/MediaBrowser.Providers/TV/FanArtTvUpdatesPrescanTask.cs
2013-06-11 10:39:25 -04:00

189 lines
7.1 KiB
C#

using MediaBrowser.Common.Net;
using MediaBrowser.Controller.Configuration;
using MediaBrowser.Controller.Library;
using MediaBrowser.Model.Logging;
using MediaBrowser.Model.Serialization;
using MediaBrowser.Providers.Music;
using System;
using System.Collections.Generic;
using System.Globalization;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
namespace MediaBrowser.Providers.TV
{
class FanArtTvUpdatesPrescanTask : ILibraryPrescanTask
{
private const string UpdatesUrl = "http://api.fanart.tv/webservice/newtv/{0}/{1}/";
/// <summary>
/// The _HTTP client
/// </summary>
private readonly IHttpClient _httpClient;
/// <summary>
/// The _logger
/// </summary>
private readonly ILogger _logger;
/// <summary>
/// The _config
/// </summary>
private readonly IServerConfigurationManager _config;
private readonly IJsonSerializer _jsonSerializer;
private static readonly CultureInfo UsCulture = new CultureInfo("en-US");
public FanArtTvUpdatesPrescanTask(IJsonSerializer jsonSerializer, IServerConfigurationManager config, ILogger logger, IHttpClient httpClient)
{
_jsonSerializer = jsonSerializer;
_config = config;
_logger = logger;
_httpClient = httpClient;
}
/// <summary>
/// Runs the specified progress.
/// </summary>
/// <param name="progress">The progress.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>Task.</returns>
public async Task Run(IProgress<double> progress, CancellationToken cancellationToken)
{
if (!_config.Configuration.EnableInternetProviders)
{
progress.Report(100);
return;
}
var path = FanArtTvProvider.GetSeriesDataPath(_config.CommonApplicationPaths);
var timestampFile = Path.Combine(path, "time.txt");
var timestampFileInfo = new FileInfo(timestampFile);
// Don't check for tvdb updates anymore frequently than 24 hours
if (timestampFileInfo.Exists && (DateTime.UtcNow - timestampFileInfo.LastWriteTimeUtc).TotalDays < 1)
{
return;
}
// Find out the last time we queried for updates
var lastUpdateTime = timestampFileInfo.Exists ? File.ReadAllText(timestampFile, Encoding.UTF8) : string.Empty;
var existingDirectories = Directory.EnumerateDirectories(path).Select(Path.GetFileName).ToList();
// If this is our first time, don't do any updates and just record the timestamp
if (!string.IsNullOrEmpty(lastUpdateTime))
{
var seriesToUpdate = await GetSeriesIdsToUpdate(existingDirectories, lastUpdateTime, cancellationToken).ConfigureAwait(false);
progress.Report(5);
await UpdateSeries(seriesToUpdate, path, progress, cancellationToken).ConfigureAwait(false);
}
var newUpdateTime = Convert.ToInt64(DateTimeToUnixTimestamp(DateTime.UtcNow)).ToString(UsCulture);
File.WriteAllText(timestampFile, newUpdateTime, Encoding.UTF8);
progress.Report(100);
}
/// <summary>
/// Gets the series ids to update.
/// </summary>
/// <param name="existingSeriesIds">The existing series ids.</param>
/// <param name="lastUpdateTime">The last update time.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>Task{IEnumerable{System.String}}.</returns>
private async Task<IEnumerable<string>> GetSeriesIdsToUpdate(IEnumerable<string> existingSeriesIds, string lastUpdateTime, CancellationToken cancellationToken)
{
// First get last time
using (var stream = await _httpClient.Get(new HttpRequestOptions
{
Url = string.Format(UpdatesUrl, FanartBaseProvider.ApiKey, lastUpdateTime),
CancellationToken = cancellationToken,
EnableHttpCompression = true,
ResourcePool = FanartBaseProvider.FanArtResourcePool
}).ConfigureAwait(false))
{
// If empty fanart will return a string of "null", rather than an empty list
using (var reader = new StreamReader(stream))
{
var json = await reader.ReadToEndAsync().ConfigureAwait(false);
if (string.Equals(json, "null", StringComparison.OrdinalIgnoreCase))
{
return new List<string>();
}
var updates = _jsonSerializer.DeserializeFromString<List<FanArtUpdatesPrescanTask.FanArtUpdate>>(json);
return updates.Select(i => i.id).Where(i => existingSeriesIds.Contains(i, StringComparer.OrdinalIgnoreCase));
}
}
}
/// <summary>
/// Updates the series.
/// </summary>
/// <param name="idList">The id list.</param>
/// <param name="seriesDataPath">The artists data path.</param>
/// <param name="progress">The progress.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>Task.</returns>
private async Task UpdateSeries(IEnumerable<string> idList, string seriesDataPath, IProgress<double> progress, CancellationToken cancellationToken)
{
var list = idList.ToList();
var numComplete = 0;
foreach (var id in list)
{
await UpdateSeries(id, seriesDataPath, cancellationToken).ConfigureAwait(false);
numComplete++;
double percent = numComplete;
percent /= list.Count;
percent *= 95;
progress.Report(percent + 5);
}
}
private Task UpdateSeries(string tvdbId, string seriesDataPath, CancellationToken cancellationToken)
{
_logger.Info("Updating series " + tvdbId);
seriesDataPath = Path.Combine(seriesDataPath, tvdbId);
if (!Directory.Exists(seriesDataPath))
{
Directory.CreateDirectory(seriesDataPath);
}
return FanArtTvProvider.Current.DownloadSeriesXml(seriesDataPath, tvdbId, cancellationToken);
}
/// <summary>
/// Dates the time to unix timestamp.
/// </summary>
/// <param name="dateTime">The date time.</param>
/// <returns>System.Double.</returns>
private static double DateTimeToUnixTimestamp(DateTime dateTime)
{
return (dateTime - new DateTime(1970, 1, 1).ToUniversalTime()).TotalSeconds;
}
public class FanArtUpdate
{
public string id { get; set; }
public string name { get; set; }
public string new_images { get; set; }
public string total_images { get; set; }
}
}
}