feat(missions): MissionCatalogImporter, idempotent upsert by id

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

SVSim.UnitTests/Importers/MissionCatalogImporterTests.cs

@@ -0,0 +1,91 @@
+using Microsoft.EntityFrameworkCore;
+using Microsoft.Extensions.DependencyInjection;
+using SVSim.Bootstrap.Importers;
+using SVSim.Database;
+using SVSim.UnitTests.Infrastructure;
+
+namespace SVSim.UnitTests.Importers;
+
+public class MissionCatalogImporterTests
+{
+    private static string SeedDir => Path.Combine(AppContext.BaseDirectory, "Data", "seeds");
+
+    [Test]
+    public async Task Imports_captured_missions_from_seed()
+    {
+        using var factory = new SVSimTestFactory();
+        using var scope = factory.Services.CreateScope();
+        var db = scope.ServiceProvider.GetRequiredService<SVSimDbContext>();
+
+        await new MissionCatalogImporter().ImportAsync(db, SeedDir);
+
+        var rows = await db.MissionCatalog.OrderBy(e => e.Id).ToListAsync();
+        Assert.That(rows.Count, Is.GreaterThanOrEqualTo(5),
+            "captured mission_ids 12, 16, 20, 332, 505 must all be present");
+
+        var daily = rows.Single(r => r.Id == 332);
+        Assert.That(daily.LotType, Is.EqualTo(6));
+        Assert.That(daily.DefaultFlag, Is.True);
+        Assert.That(daily.EventType, Is.EqualTo("daily_match_win"));
+
+        var sword = rows.Single(r => r.Id == 16);
+        Assert.That(sword.LotType, Is.EqualTo(2));
+        Assert.That(sword.EventType, Is.EqualTo("ranked_win:swordcraft"));
+    }
+
+    [Test]
+    public async Task Is_idempotent_on_rerun()
+    {
+        using var factory = new SVSimTestFactory();
+        using var scope = factory.Services.CreateScope();
+        var db = scope.ServiceProvider.GetRequiredService<SVSimDbContext>();
+
+        await new MissionCatalogImporter().ImportAsync(db, SeedDir);
+        int before = await db.MissionCatalog.CountAsync();
+        await new MissionCatalogImporter().ImportAsync(db, SeedDir);
+        int after = await db.MissionCatalog.CountAsync();
+
+        Assert.That(after, Is.EqualTo(before));
+    }
+
+    [Test]
+    public async Task Leaves_existing_rows_untouched_when_missing_from_seed()
+    {
+        using var factory = new SVSimTestFactory();
+        using var scope = factory.Services.CreateScope();
+        var db = scope.ServiceProvider.GetRequiredService<SVSimDbContext>();
+
+        db.MissionCatalog.Add(new SVSim.Database.Models.MissionCatalogEntry
+        {
+            Id = 99999, Name = "preserved", LotType = 2,
+            RequireNumber = 1, RewardType = 9, RewardDetailId = 0, RewardNumber = 10,
+            BattlePassPoint = 0, DefaultFlag = false, StartTime = 0,
+        });
+        await db.SaveChangesAsync();
+
+        await new MissionCatalogImporter().ImportAsync(db, SeedDir);
+
+        var preserved = await db.MissionCatalog.FindAsync(99999);
+        Assert.That(preserved, Is.Not.Null);
+        Assert.That(preserved!.Name, Is.EqualTo("preserved"));
+    }
+
+    [Test]
+    public async Task Empty_seed_is_no_op()
+    {
+        using var factory = new SVSimTestFactory();
+        using var scope = factory.Services.CreateScope();
+        var db = scope.ServiceProvider.GetRequiredService<SVSimDbContext>();
+
+        string tmp = Path.Combine(Path.GetTempPath(), $"seed-{Guid.NewGuid()}");
+        Directory.CreateDirectory(tmp);
+        try
+        {
+            File.WriteAllText(Path.Combine(tmp, "mission-catalog.json"), "[]");
+            await new MissionCatalogImporter().ImportAsync(db, tmp);
+            int count = await db.MissionCatalog.CountAsync();
+            Assert.That(count, Is.EqualTo(0));
+        }
+        finally { Directory.Delete(tmp, true); }
+    }
+}