Tranga-Website/Tranga/TrangaTasks/DownloadNewChaptersTask.cs

94 lines
3.6 KiB
C#

using Logging;
using Newtonsoft.Json;
namespace Tranga.TrangaTasks;
public class DownloadNewChaptersTask : TrangaTask
{
public string connectorName { get; }
public Publication publication { get; }
public string language { get; }
[JsonIgnore]private HashSet<DownloadChapterTask> childTasks { get; }
public DownloadNewChaptersTask(Task task, string connectorName, Publication publication, TimeSpan reoccurrence, string language = "en") : base(task, reoccurrence)
{
this.connectorName = connectorName;
this.publication = publication;
this.language = language;
this.childTasks = new();
}
public new float IncrementProgress(float amount)
{
this.progress += amount / this.childTasks.Count;
this.lastChange = DateTime.Now;
return this.progress;
}
public new float DecrementProgress(float amount)
{
this.progress -= amount / this.childTasks.Count;
this.lastChange = DateTime.Now;
return this.progress;
}
protected override void ExecuteTask(TaskManager taskManager, Logger? logger, CancellationToken? cancellationToken = null)
{
if (cancellationToken?.IsCancellationRequested??false)
return;
Publication pub = publication!;
Connector connector = taskManager.GetConnector(this.connectorName);
//Check if Publication already has a Folder
pub.CreatePublicationFolder(taskManager.settings.downloadLocation);
List<Chapter> newChapters = GetNewChaptersList(connector, pub, language!, ref taskManager.chapterCollection);
connector.CopyCoverFromCacheToDownloadLocation(pub, taskManager.settings);
pub.SaveSeriesInfoJson(connector.downloadLocation);
foreach (Chapter newChapter in newChapters)
{
DownloadChapterTask newTask = new (Task.DownloadChapter, this.connectorName!, pub, newChapter, this.language, this);
taskManager.AddTask(newTask);
this.childTasks.Add(newTask);
}
}
public void ReplaceFailedChildTask(DownloadChapterTask failed, DownloadChapterTask newTask)
{
if (!this.childTasks.Contains(failed))
throw new ArgumentException($"Task {failed} is not childTask of {this}");
this.childTasks.Remove(failed);
this.childTasks.Add(newTask);
}
public void AddChildTask(DownloadChapterTask childTask)
{
this.childTasks.Add(childTask);
}
/// <summary>
/// Updates the available Chapters of a Publication
/// </summary>
/// <param name="connector">Connector to use</param>
/// <param name="publication">Publication to check</param>
/// <param name="language">Language to receive chapters for</param>
/// <param name="chapterCollection"></param>
/// <returns>List of Chapters that were previously not in collection</returns>
private static List<Chapter> GetNewChaptersList(Connector connector, Publication publication, string language, ref Dictionary<Publication, List<Chapter>> chapterCollection)
{
List<Chapter> newChaptersList = new();
chapterCollection.TryAdd(publication, newChaptersList); //To ensure publication is actually in collection
Chapter[] newChapters = connector.GetChapters(publication, language);
newChaptersList = newChapters.Where(nChapter => !connector.CheckChapterIsDownloaded(publication, nChapter)).ToList();
return newChaptersList;
}
public override string ToString()
{
return $"{base.ToString()}, {connectorName}, {publication.sortName} {publication.internalId}";
}
}