inventory things

Hanekawa.Application/Services/InventoryService.cs

@@ -0,0 +1,19 @@
+using Hanekawa.Entities.Users;
+
+namespace Hanekawa.Application.Services;
+
+public class InventoryService
+{
+
+}
+
+public interface IInventoryService
+{
+    ValueTask<GuildUser> GetInventoryAsync(ulong userId);
+    ValueTask UpdateInventoryAsync(GuildUser user);
+    ValueTask AddItemAsync(GuildUser user, Guid itemId, int amount);
+    ValueTask RemoveItemAsync(GuildUser user, Guid itemId, int amount);
+    ValueTask<bool> HasItemAsync(GuildUser user, Guid itemId, int amount);
+    ValueTask<bool> HasItemAsync(GuildUser user, Guid itemId);
+    ValueTask<int> GetItemCountAsync(ulong userId, Guid itemId);
+}

Hanekawa.Bot/Hanekawa.Bot.csproj

@@ -50,6 +50,7 @@
       <Folder Include="Commands\Slash\AutoMessage\" />
       <Folder Include="Commands\Slash\Board\" />
       <Folder Include="Commands\Slash\Boost\" />
+      <Folder Include="Data\Background\" />
       <Folder Include="Extensions\" />
       <Folder Include="Validators\" />
     </ItemGroup>

Hanekawa/Entities/Users/User.cs

@@ -1,4 +1,5 @@
-using Hanekawa.Interfaces;
+using System.ComponentModel.DataAnnotations;
+using Hanekawa.Interfaces;
 
 namespace Hanekawa.Entities.Users;
 
@@ -7,4 +8,47 @@ public class User : IEntity
     public ulong Id { get; set; }
     public DateTimeOffset? PremiumExpiration { get; set; }
     public List<GuildUser> GuildUsers { get; set; } = [];
+}
+
+public class Equipment : IEntity
+{
+    public ulong Id { get; set; }
+
+    public Guid BackgroundId { get; set; }
+    public Inventory Background { get; set; } = null!;
+}
+
+public class Inventory
+{
+    [Key]
+    public Guid Id { get; set; } = Guid.NewGuid();
+
+    public Guid ItemId { get; set; }
+    public Item Item { get; set; } = null!;
+    public int Amount { get; set; } = 0;
+
+    public ulong UserId { get; set; }
+    public User User { get; set; } = null!;
+}
+
+public class Item
+{
+    public Guid Id { get; set; } = Guid.NewGuid();
+    public string Name { get; set; } = null!;
+    public string Description { get; set; } = null!;
+    public int Price { get; set; } = 0;
+
+    public ItemType Type { get; set; } = null!;
+    public Guid TypeId { get; set; }
+}
+
+public class ItemType
+{
+    public Guid Id { get; set; } = Guid.NewGuid();
+    public string Name { get; set; } = null!;
+    public bool Equippable { get; set; }
+    public bool Consumable { get; set; }
+    public bool Stackable { get; set; }
+    public bool Sellable { get; set; }
+    public bool Tradable { get; set; }
 }