WIP move baseitem to jellyfin.db

Jellyfin.Server.Implementations/Item/ChapterManager.cs

@@ -0,0 +1,51 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using Jellyfin.Data.Entities;
+using MediaBrowser.Model.Entities;
+using Microsoft.EntityFrameworkCore;
+using BaseItemDto = MediaBrowser.Controller.Entities.BaseItem;
+
+namespace Jellyfin.Server.Implementations.Item;
+
+public class ChapterManager
+{
+    private readonly IDbContextFactory<JellyfinDbContext> _dbProvider;
+
+    public ChapterManager(IDbContextFactory<JellyfinDbContext> dbProvider)
+    {
+        _dbProvider = dbProvider;
+    }
+
+    public IReadOnlyList<ChapterInfo> GetChapters(BaseItemDto baseItemDto)
+    {
+        using var context = _dbProvider.CreateDbContext();
+        return context.Chapters.Where(e => e.ItemId.Equals(baseItemDto.Id)).Select(Map).ToList();
+    }
+
+    private Chapter Map(ChapterInfo chapterInfo, int index, Guid itemId)
+    {
+        return new Chapter()
+        {
+            ChapterIndex = index,
+            StartPositionTicks = chapterInfo.StartPositionTicks,
+            ImageDateModified = chapterInfo.ImageDateModified,
+            ImagePath = chapterInfo.ImagePath,
+            ItemId = itemId,
+            Name = chapterInfo.Name
+        };
+    }
+
+    private ChapterInfo Map(Chapter chapterInfo, BaseItemDto baseItem)
+    {
+        var info = new ChapterInfo()
+        {
+            StartPositionTicks = chapterInfo.StartPositionTicks,
+            ImageDateModified = chapterInfo.ImageDateModified.GetValueOrDefault(),
+            ImagePath = chapterInfo.ImagePath,
+            Name = chapterInfo.Name,
+        };
+        info.ImageTag = _imageProcessor.GetImageCacheTag(baseItem, info);
+        return info;
+    }
+}