Prebuilt deck purchasing and fixes

SVSim.Database/Models/BuildDeckProductCardEntry.cs

@@ -0,0 +1,17 @@
+using Microsoft.EntityFrameworkCore;
+
+namespace SVSim.Database.Models;
+
+/// <summary>
+/// One card in a prebuilt-deck product's 40-card list. Owned by BuildDeckProductEntry.
+/// Shape mirrors `build_deck_package_master.csv` rows: (ProductId, CardId, Number, IsSpot).
+/// IsSpot=true marks the special prize/featured cards rendered in the separate _spotCardRoot
+/// panel by BuildDeckProductDetail.cs.
+/// </summary>
+[Owned]
+public class BuildDeckProductCardEntry
+{
+    public long CardId { get; set; }
+    public int Number { get; set; }
+    public bool IsSpot { get; set; }
+}

SVSim.Database/Models/BuildDeckProductEntry.cs

@@ -0,0 +1,32 @@
+using SVSim.Database.Common;
+
+namespace SVSim.Database.Models;
+
+/// <summary>
+/// One purchasable prebuilt-deck product. PK = wire product_id. FK SeriesId.
+/// Pricing columns are nullable; either Crystal or Rupy pair (or both, both zero for free) must
+/// be populated for an enabled product. The Intro/Regular pair captures the two-tier pricing
+/// pattern: Intro applies to the first purchase, Regular to subsequent. For PurchaseNumMax=1
+/// products, Regular stays null and only Intro is ever served.
+/// </summary>
+public class BuildDeckProductEntry : BaseEntity<int>
+{
+    public int SeriesId { get; set; }
+    public int LeaderId { get; set; }
+    public string DeckCode { get; set; } = string.Empty;
+    public string ProductNameKey { get; set; } = string.Empty;   // BDPN_*
+    public long FeaturedCardId { get; set; }
+    public int PurchaseNumMax { get; set; }
+
+    public int? IntroPriceCrystal { get; set; }
+    public int? RegularPriceCrystal { get; set; }
+    public int? IntroPriceRupy { get; set; }
+    public int? RegularPriceRupy { get; set; }
+
+    public bool IsEnabled { get; set; }
+
+    public List<BuildDeckProductCardEntry> Cards { get; set; } = new();
+    public List<BuildDeckProductRewardEntry> Rewards { get; set; } = new();
+
+    public BuildDeckSeriesEntry? Series { get; set; }
+}

SVSim.Database/Models/BuildDeckProductRewardEntry.cs

@@ -0,0 +1,18 @@
+using Microsoft.EntityFrameworkCore;
+
+namespace SVSim.Database.Models;
+
+/// <summary>
+/// One per-buy reward attached to a prebuilt-deck product. Owned by BuildDeckProductEntry.
+/// Wire shape: one entry of the product-level `rewards` dict in /build_deck/info, keyed by
+/// RewardIndex (the wire string keys "1","2","3").
+/// </summary>
+[Owned]
+public class BuildDeckProductRewardEntry
+{
+    public int RewardIndex { get; set; }
+    public int RewardType { get; set; }   // Wizard.UserGoods.Type
+    public long RewardDetailId { get; set; }
+    public int RewardNumber { get; set; }
+    public int MessageId { get; set; }
+}

SVSim.Database/Models/BuildDeckSeriesEntry.cs

@@ -0,0 +1,22 @@
+using SVSim.Database.Common;
+
+namespace SVSim.Database.Models;
+
+/// <summary>
+/// One prebuilt-deck series ("Structure Deck Set 7", "Trial 19", etc.). PK = wire series_id.
+/// IsEnabled gates whether /build_deck/info renders this series — disabled rows are placeholder
+/// stubs created from the client CSV until we capture a /info response that enriches them.
+/// </summary>
+public class BuildDeckSeriesEntry : BaseEntity<int>
+{
+    public int OrderIndex { get; set; }   // wire order_id; controls display order
+    public string NameKey { get; set; } = string.Empty;      // BDSSN_*
+    public string IntroKey { get; set; } = string.Empty;     // BDSI_*
+    public string TitlePath { get; set; } = string.Empty;
+    public string DrumrollPath { get; set; } = string.Empty;
+    public bool IsNew { get; set; }
+    public bool IsEnabled { get; set; }
+
+    public List<BuildDeckSeriesRewardEntry> SeriesRewards { get; set; } = new();
+    public List<BuildDeckProductEntry> Products { get; set; } = new();
+}

SVSim.Database/Models/BuildDeckSeriesRewardEntry.cs

@@ -0,0 +1,20 @@
+using Microsoft.EntityFrameworkCore;
+
+namespace SVSim.Database.Models;
+
+/// <summary>
+/// One tier-reward item attached to a prebuilt-deck series. Owned by BuildDeckSeriesEntry.
+/// Wire shape: flattened from /build_deck/info's `series_rewards` dict — each tier (keyed
+/// by total-purchases-from-series threshold) carries a list of rewards; this row is one
+/// (TierIndex, ItemIndex) cell.
+/// </summary>
+[Owned]
+public class BuildDeckSeriesRewardEntry
+{
+    public int TierIndex { get; set; }   // 1, 2, 3, ... — unlock threshold
+    public int ItemIndex { get; set; }   // ordinal within tier
+    public int RewardType { get; set; }
+    public long RewardDetailId { get; set; }
+    public int RewardNumber { get; set; }
+    public int MessageId { get; set; }
+}

SVSim.Database/Models/Viewer.cs

@@ -57,6 +57,8 @@ public class Viewer : BaseEntity<long>
 
     public List<ViewerPackOpenCount> PackOpenCounts { get; set; } = new List<ViewerPackOpenCount>();
 
+    public List<ViewerBuildDeckProductPurchase> BuildDeckPurchases { get; set; } = new List<ViewerBuildDeckProductPurchase>();
+
     #endregion
 
     #region Navigation Properties

SVSim.Database/Models/ViewerBuildDeckProductPurchase.cs

@@ -0,0 +1,14 @@
+using Microsoft.EntityFrameworkCore;
+
+namespace SVSim.Database.Models;
+
+/// <summary>
+/// Per-viewer, per-product purchase counter. Owned collection on Viewer.
+/// Unique (ViewerId, ProductId) enforced in SVSimDbContext per project_owned_collection_unique_index.
+/// </summary>
+[Owned]
+public class ViewerBuildDeckProductPurchase
+{
+    public int ProductId { get; set; }
+    public int PurchaseCount { get; set; }
+}