using System.Text;
using Tranga.MangaConnectors;

namespace Tranga.Jobs;

public class DownloadChapter : Job
{
    public Chapter chapter { get; init; }

    public DownloadChapter(GlobalBase clone, MangaConnector connector, Chapter chapter, DateTime lastExecution, string? parentJobId = null) : base(clone, connector, lastExecution, parentJobId: parentJobId)
    {
        this.chapter = chapter;
    }
    
    public DownloadChapter(GlobalBase clone, MangaConnector connector, Chapter chapter, string? parentJobId = null) : base(clone, connector, parentJobId: parentJobId)
    {
        this.chapter = chapter;
    }
    
    protected override string GetId()
    {
        return Convert.ToBase64String(Encoding.ASCII.GetBytes(string.Concat(this.GetType().ToString(), chapter.parentManga.internalId, chapter.chapterNumber)));
    }

    public override string ToString()
    {
        return $"DownloadChapter {id} {chapter}";
    }

    protected override IEnumerable<Job> ExecuteReturnSubTasksInternal()
    {
        Task downloadTask = new(delegate
        {
            mangaConnector.DownloadChapter(chapter, this.progressToken);
            UpdateLibraries();
            SendNotifications("Chapter downloaded", $"{chapter.parentManga.sortName} - {chapter.chapterNumber}");
        });
        downloadTask.Start();
        return Array.Empty<Job>();
    }
}