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GameServer/Contents/ItemFunction/PacketHandler/ItemDeletePacketHandler.cs

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+using Google.Protobuf;
+using Google.Protobuf.WellKnownTypes;
+
+
+using ServerCore;
+using ServerBase;
+using ServerCommon;
+using ServerCommon.BusinessLogDomain;
+using MetaAssets;
+
+
+using static ClientToGameReq.Types;
+using static ClientToGameRes.Types;
+
+
+using ITEM_GUID = System.String;
+
+
+
+namespace GameServer.PacketHandler;
+
+[PacketHandler(typeof(ClientToGameReq), typeof(RemoveItemReq), typeof(ItemDeletePacketHandler), typeof(GameLoginListener))]
+
+public class ItemDeletePacketHandler : PacketRecvHandler
+{
+    public override async Task onProcessPacketException( ISession entityWithSession, IMessage recvMessage
+                                                       , Result errorResult)
+    {
+        await Task.CompletedTask;
+
+        var player = entityWithSession as Player;
+        NullReferenceCheckHelper.throwIfNull(player, () => $"player is null !!! - {entityWithSession.toBasicString()}");
+
+        send_S2C_ACK_ITEM_DELETE(player, errorResult);
+    }
+
+    public static bool send_S2C_ACK_ITEM_DELETE(Player owner, Result result, Item? removedItem = null)
+    {
+        var ack_packet = new ClientToGame();
+        ack_packet.Response = new ClientToGameRes();
+
+        ack_packet.Response.ErrorCode = result.ErrorCode;
+        ack_packet.Response.RemoveItemRes = new RemoveItemRes();
+
+        if(result.isSuccess())
+        {
+            ArgumentNullReferenceCheckHelper.throwIfNull(removedItem, () => $"removedItem is null !!! - {owner.toBasicString()}");
+            var item_attribute = removedItem.getOriginEntityAttribute<ItemAttributeBase>();
+            NullReferenceCheckHelper.throwIfNull(item_attribute, () => $"item_attribute is null !!! - {owner.toBasicString()}");
+
+            ack_packet.Response.RemoveItemRes.ItemGuid = item_attribute.ItemGuid;
+            ack_packet.Response.RemoveItemRes.Count = item_attribute.ItemStackCount;
+        }
+
+        if (false == GameServerApp.getServerLogic().onSendPacket(owner, ack_packet))
+        {
+            return false;
+        }
+
+        return true;
+    }
+
+    public override async Task<Result> onProcessPacket(ISession entityWithSession, Google.Protobuf.IMessage recvMessage)
+    {
+        var result = new Result();
+        var err_msg = string.Empty;
+
+        var player = entityWithSession as Player;
+        NullReferenceCheckHelper.throwIfNull(player, () => $"player is null !!!");
+
+        var recv_msg = recvMessage as ClientToGame;
+        ArgumentNullReferenceCheckHelper.throwIfNull(recv_msg, () => $"recv_msg is null !!! - {player.toBasicString()}");
+        var request = recv_msg.Request.RemoveItemReq;
+        ArgumentNullReferenceCheckHelper.throwIfNull(request, () => $"request is null !!! - {player.toBasicString()}");
+
+        (result, Item? removed_item) = await tryDeleteItemWithTransactionRunner( player, request.ItemGuid, (ushort)request.Count
+                                                                               , LogActionType.ItemDestroyByUser );
+        if(result.isFail())
+        {
+            send_S2C_ACK_ITEM_DELETE(player, result);
+            return result;
+        }
+        NullReferenceCheckHelper.throwIfNull(removed_item, () => $"removed_item is null !!! - {player.toBasicString()}");
+
+        send_S2C_ACK_ITEM_DELETE(player, result, removed_item);
+
+        return result;
+    }
+
+    public static async Task<(Result, Item?)> tryDeleteItemWithTransactionRunner( Player player
+                                                                                , ITEM_GUID toDeleteItemGuid, ushort toDeletedCount
+                                                                                , LogActionType logActionType )
+    {
+        var result = new Result();
+        var err_msg = string.Empty;
+
+        var server_logic = GameServerApp.getServerLogic();
+
+        Item? removed_item = null;
+        var fn_item_delete = async delegate ()
+        {
+            var result = new Result();
+
+            var inventory_action = player.getEntityAction<InventoryActionBase>();
+            NullReferenceCheckHelper.throwIfNull(inventory_action, () => $"inventory action is null !!! - {player.toBasicString()}");
+
+            (result, removed_item) = await inventory_action.tryDeleteItemByGuid(toDeleteItemGuid, toDeletedCount);
+            if (result.isFail())
+            {
+                err_msg = $"Failed to tryDeleteItemByGuid() !!! : {result.toBasicString()} - {player.toBasicString()}";
+                Log.getLogger().error(err_msg);
+                return result;
+            }
+
+            var batch = new QueryBatchEx<QueryRunnerWithDocument>( player, logActionType
+                                                               , server_logic.getDynamoDbClient()
+                                                               , true );
+            {
+                batch.addQuery(new DBQWriteToAttributeAllWithTransactionRunner());
+            }
+
+            result = await QueryHelper.sendQueryAndBusinessLog(batch);
+            if (result.isFail())
+            {
+                return result;
+            }
+
+            return result;
+        };
+
+        result = await player.runTransactionRunnerSafely(TransactionIdType.PrivateContents, "ItemDelete", fn_item_delete);
+        if (result.isFail())
+        {
+            err_msg = $"Failed to runTransactionRunnerSafely()!!! : {result.toBasicString()} - {player.toBasicString()}";
+            Log.getLogger().error(err_msg);
+
+            return (result, null);
+        }
+
+        if (removed_item != null)
+        {
+            var item_meta = removed_item.getItemMeta();
+            if(null == item_meta)
+            {
+                err_msg = $"Not found ItemMeta !!!, in tryDeleteItemWithTransactionRunner() !!! : ItemGuid:{toDeleteItemGuid}, count:{toDeletedCount} - {player.toBasicString()}";
+                Log.getLogger().error(err_msg);
+            }
+            else
+            {
+                await QuestManager.It.QuestCheck(player, new QuestItem(EQuestEventTargetType.ITEM, EQuestEventNameType.DELETED, item_meta.ItemId));
+            }
+        }
+
+        return (result, removed_item);
+    }
+}