Add support for inspecting keychains

CS2Interface/GameData/GameObjects/Items/InspectItem.cs

@@ -24,6 +24,7 @@ internal InspectItem(CMsgGCCStrike15_v2_Client2GCEconPreviewDataBlockResponse it
 			PaintIndex = ItemInfo.paintindex;            
 			StickerID = ItemInfo.stickers.FirstOrDefault()?.sticker_id;
 			TintID = ItemInfo.stickers.FirstOrDefault()?.tint_id;
+			KeychainID = ItemInfo.keychains.FirstOrDefault()?.sticker_id;
 			Quality = ItemInfo.quality;
 			Rarity = ItemInfo.rarity;
 			Origin = ItemInfo.origin;

CS2Interface/GameData/GameObjects/Items/InventoryItem.cs

@@ -46,6 +46,7 @@ internal InventoryItem(CSOEconItem item) {
 				StickerID = Attributes.GetValueOrDefault("sticker slot 0 id")?.ToUInt32();
 				TintID = Attributes.GetValueOrDefault("spray tint id")?.ToUInt32();
 				MusicID = Attributes.GetValueOrDefault("music id")?.ToUInt32();
+				KeychainID = Attributes.GetValueOrDefault("keychain slot 0 id")?.ToUInt32();
 				if (Attributes.GetValueOrDefault("set item texture wear") != null) {
 					Wear = (double) BitConverter.UInt32BitsToSingle(BitConverter.SingleToUInt32Bits(Attributes.GetValueOrDefault("set item texture wear")!.ToSingle()));
 				}

CS2Interface/GameData/GameObjects/Items/Item.cs

@@ -11,6 +11,7 @@ public class Item : GameObject {
 		public uint? StickerID;
 		public uint? TintID;
 		public uint? MusicID;
+		public uint? KeychainID;
 		public uint Quality;
 		public uint Rarity;
 		public uint Origin;
@@ -164,7 +165,7 @@ protected override bool SetAdditionalProperties() {
 
 			// Set the item name, which will be something like: what kind of sticker it is, or the name of the weapon skin, or the type of pin/coin
 			// If an item has a wear value, but uses the default paint_kit (vanilla knives for example), this will be "-"
-			ItemName = GameData.CsgoEnglish[(ItemData.MusicDef?["loc_name"].Value ?? ItemData.StickerKitDef?["item_name"].Value ?? ItemData.PaintKitDef?["description_tag"].Value ?? ItemData.ItemDef["item_name"].Value)?.Substring(1)];
+			ItemName = GameData.CsgoEnglish[(ItemData.KeychainDef?["loc_name"].Value ?? ItemData.MusicDef?["loc_name"].Value ?? ItemData.StickerKitDef?["item_name"].Value ?? ItemData.PaintKitDef?["description_tag"].Value ?? ItemData.ItemDef["item_name"].Value)?.Substring(1)];
 
 			// Set the tool named, used for various things like differentiating between Graffiti and Sealed Graffiti
 			if (ItemData.ItemDef["prefab"].Value == "csgo_tool") {
@@ -205,7 +206,7 @@ protected override bool SetAdditionalProperties() {
 				FullTypeName = String.Format("{0} {1} {2}", displayQualityName, RarityName, TypeName).Trim();
 				// FullTypeName = String.Format(GameData.CsgoEnglish.Format("ItemTypeDescKillEater") ?? "{0} {1} {2}", displayQualityName, RarityName, TypeName).Trim();
 
-				if (PaintIndex == 0 && ItemData.StickerKitDef == null && ItemData.MusicDef == null) {
+				if (PaintIndex == 0 && ItemData.StickerKitDef == null && ItemData.MusicDef == null && ItemData.KeychainDef == null) {
 					FullName = String.Format("{0} {1}", displayQualityName, ToolName ?? WeaponName ?? ItemName).Trim(); // Collectibles (Pins, Coins), Vanilla Knives
 				} else if (WearName != null || TintName != null) {
 					FullName = String.Format("{0} {1} | {2} ({3})", displayQualityName, WeaponName ?? ToolName ?? TypeName, ItemName, WearName ?? TintName).Trim(); // Weapon Skins, Gloves, Graffiti
@@ -217,10 +218,10 @@ protected override bool SetAdditionalProperties() {
 			}
 
 			// Set the name id, used for determining related set and crate
-			if (PaintIndex == 0 && ItemData.StickerKitDef == null && ItemData.MusicDef == null) {
+			if (PaintIndex == 0 && ItemData.StickerKitDef == null && ItemData.MusicDef == null && ItemData.KeychainDef == null) {
 				NameID = ItemData.ItemDef["name"].Value; // Collectibles, Vanilla Knives
 			} else {
-				NameID = String.Format("[{0}]{1}", (ItemData.MusicDef ?? ItemData.StickerKitDef ?? ItemData.PaintKitDef)?["name"].Value, ItemData.ItemDef["name"].Value); // Everything else
+				NameID = String.Format("[{0}]{1}", (ItemData.KeychainDef ?? ItemData.MusicDef ?? ItemData.StickerKitDef ?? ItemData.PaintKitDef)?["name"].Value, ItemData.ItemDef["name"].Value); // Everything else
 			}
 
 			if (NameID != null) {

CS2Interface/GameData/GameObjects/Items/ItemData.cs

@@ -26,16 +26,23 @@ public class ItemData {
 		[JsonConverter(typeof(KVConverter))]
 		public KeyValue? MusicDef { get; private init; }
 
+		[JsonInclude]
+		[JsonPropertyName("keychain_def")]
+		[JsonConverter(typeof(KVConverter))]
+		public KeyValue? KeychainDef { get; private init; }
+
 		public bool ShouldSerializeItemDef() => ItemDef != null;
 		public bool ShouldSerializePaintKitDef() => PaintKitDef != null;
 		public bool ShouldSerializeStickerKitDef() => StickerKitDef != null;
 		public bool ShouldSerializeMusicDef() => MusicDef != null;
+		public bool ShouldSerializeKeychainDefDef() => KeychainDef != null;
 
 		internal ItemData(Item item) {
 			ItemDef = CreateItemDef(item);
 			PaintKitDef = CreatePaintKitDef(item);
 			StickerKitDef = CreateStickerKitDef(item);
 			MusicDef = CreateMusicDef(item);
+			KeychainDef = CreateKeychainDef(item);
 		}
 
 		private KeyValue CreateItemDef(Item item) {
@@ -160,5 +167,24 @@ private bool MergePrefab(KeyValue itemDef, string? prefab) {
 
 			return musicDef.Clone();
 		}
+
+
+		private KeyValue? CreateKeychainDef(Item item) {
+			if (item.KeychainID == null 
+				|| !(
+					item.DefIndex == 1355 // Charm
+				)
+			) {
+				// This item has no keychain definition
+				return null;
+			}
+
+			KeyValue? keychainDef = GameData.ItemsGame.GetDef("keychain_definitions", item.KeychainID.ToString()!);
+			if (keychainDef == null) {
+				throw new Exception();
+			}
+
+			return keychainDef.Clone();
+		}
 	}
 }