From eea596c6ecaf025a1ad86e3cc88d169af0d8ac6d Mon Sep 17 00:00:00 2001
From: gamer147 <gamer147@gmail.com>
Date: Mon, 8 Jun 2026 20:33:50 -0400
Subject: [PATCH] feat(db): wire ViewerPresent into SVSimDbContext with indexes

---
 SVSim.Database/SVSimDbContext.cs | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/SVSim.Database/SVSimDbContext.cs b/SVSim.Database/SVSimDbContext.cs
index 27ee4d8..0bfc5da 100644
--- a/SVSim.Database/SVSimDbContext.cs
+++ b/SVSim.Database/SVSimDbContext.cs
@@ -102,6 +102,7 @@ public class SVSimDbContext : DbContext
     public DbSet<ViewerStoryBranchUnlock> ViewerStoryBranchUnlocks => Set<ViewerStoryBranchUnlock>();
 
     public DbSet<ViewerClaimedTutorialGift> ViewerClaimedTutorialGifts => Set<ViewerClaimedTutorialGift>();
+    public DbSet<ViewerPresent> ViewerPresents => Set<ViewerPresent>();
 
     public DbSet<ArenaTwoPickReward> ArenaTwoPickRewards { get; set; } = null!;
     public DbSet<ViewerArenaTwoPickRun> ViewerArenaTwoPickRuns { get; set; } = null!;
@@ -373,6 +374,25 @@ public class SVSimDbContext : DbContext
             b.Property(g => g.PresentId).HasMaxLength(64);
         });
 
+        modelBuilder.Entity<ViewerPresent>(b =>
+        {
+            b.HasKey(p => p.Id);
+            b.Property(p => p.PresentId).HasMaxLength(64);
+            b.Property(p => p.Source).HasMaxLength(64);
+
+            b.HasOne(p => p.Viewer)
+                .WithMany()
+                .HasForeignKey(p => p.ViewerId)
+                .OnDelete(DeleteBehavior.Cascade);
+
+            // Drives /gift/top — partition by status, then chronological.
+            b.HasIndex(p => new { p.ViewerId, p.Status, p.CreatedAt });
+
+            // One row per (viewer, present_id) — backstop against double-seeding and
+            // double-enqueue from future producers.
+            b.HasIndex(p => new { p.ViewerId, p.PresentId }).IsUnique();
+        });
+
         base.OnModelCreating(modelBuilder);
     }