Foundational Rework (#2745)

API/Data/ManualMigrations/MigrateChapterNumber.cs

@@ -0,0 +1,50 @@
+using System;
+using System.Threading.Tasks;
+using API.Entities;
+using API.Services.Tasks.Scanner.Parser;
+using Kavita.Common.EnvironmentInfo;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.Extensions.Logging;
+
+namespace API.Data.ManualMigrations;
+
+/// <summary>
+/// Introduced in v0.8.0, this migrates the existing Chapter Range -> Chapter Min/Max Number
+/// </summary>
+public static class MigrateChapterNumber
+{
+    public static async Task Migrate(DataContext dataContext, ILogger<Program> logger)
+    {
+        if (await dataContext.ManualMigrationHistory.AnyAsync(m => m.Name == "MigrateChapterNumber"))
+        {
+            return;
+        }
+
+        logger.LogCritical(
+            "Running MigrateChapterNumber migration - Please be patient, this may take some time. This is not an error");
+
+        // Get all volumes
+        foreach (var chapter in dataContext.Chapter)
+        {
+            if (chapter.IsSpecial)
+            {
+                chapter.MinNumber = Parser.DefaultChapterNumber;
+                chapter.MaxNumber = Parser.DefaultChapterNumber;
+                continue;
+            }
+            chapter.MinNumber = Parser.MinNumberFromRange(chapter.Range);
+            chapter.MaxNumber = Parser.MaxNumberFromRange(chapter.Range);
+        }
+
+        dataContext.ManualMigrationHistory.Add(new ManualMigrationHistory()
+        {
+            Name = "MigrateChapterNumber",
+            ProductVersion = BuildInfo.Version.ToString(),
+            RanAt = DateTime.UtcNow
+        });
+
+        await dataContext.SaveChangesAsync();
+        logger.LogCritical(
+            "Running MigrateChapterNumber migration - Completed. This is not an error");
+    }
+}