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Glax
2025-03-31 19:08:35 +02:00
parent 4dd31dfe18
commit 91e033a2ec
12 changed files with 247 additions and 77 deletions
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43
API/Schema/Jobs/RetrieveChaptersJob.cs
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@ -1,5 +1,6 @@
using System.ComponentModel.DataAnnotations;
using API.Schema.MangaConnectors;
using Microsoft.EntityFrameworkCore;
using Newtonsoft.Json;
namespace API.Schema.Jobs;
@ -16,21 +17,35 @@ public class RetrieveChaptersJob(ulong recurrenceMs, string mangaId, string? par
protected override IEnumerable<Job> RunInternal(PgsqlContext context)
{
/*
* For some reason, directly using Manga from above instead of finding it again causes DBContext to consider
* Manga as a new entity and Postgres throws a Duplicate PK exception.
* m.MangaConnector does not have this issue (IDK why).
*/
Manga m = context.Mangas.Find(MangaId)!;
MangaConnector connector = context.MangaConnectors.Find(m.MangaConnectorId)!;
Manga? manga = Manga ?? context.Mangas.Find(MangaId);
if (manga is null)
{
Log.Error("Manga is null.");
return [];
}
MangaConnector? connector = manga.MangaConnector ?? context.MangaConnectors.Find(manga.MangaConnectorId);
if (connector is null)
{
Log.Error("Connector is null.");
return [];
}
// This gets all chapters that are not downloaded
Chapter[] allNewChapters = connector.GetNewChapters(m).DistinctBy(c => c.ChapterId).ToArray();
// This filters out chapters that are not downloaded but already exist in the DB
string[] chapterIds = context.Chapters.Where(chapter => chapter.ParentMangaId == m.MangaId).Select(chapter => chapter.ChapterId).ToArray();
Chapter[] newChapters = allNewChapters.Where(chapter => !chapterIds.Contains(chapter.ChapterId)).ToArray();
context.Chapters.AddRange(newChapters);
context.SaveChanges();
Chapter[] allNewChapters = connector.GetNewChapters(manga).DistinctBy(c => c.ChapterId).ToArray();
Log.Info($"{allNewChapters.Length} new chapters.");
try
{
// This filters out chapters that are not downloaded but already exist in the DB
string[] chapterIds = context.Chapters.Where(chapter => chapter.ParentMangaId == manga.MangaId)
.Select(chapter => chapter.ChapterId).ToArray();
Chapter[] newChapters = allNewChapters.Where(chapter => !chapterIds.Contains(chapter.ChapterId)).ToArray();
context.Chapters.AddRange(newChapters);
context.SaveChanges();
}
catch (DbUpdateException e)
{
Log.Error(e);
}
return [];
}