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GameServer/Contents/Cart/PacketHandler/GetCartPacketHandler.cs

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+using Google.Protobuf;
+using Google.Protobuf.WellKnownTypes;
+
+
+using ServerCore;
+using ServerBase;
+using ServerCommon;
+
+
+using static ClientToGameReq.Types;
+using static ClientToGameRes.Types;
+
+
+namespace GameServer.PacketHandler;
+
+
+[PacketHandler(typeof(ClientToGameReq), typeof(ClientToGameReq.Types.GetCartReq), typeof(GetCartPacketHandler), typeof(GameLoginListener))]
+public class GetCartPacketHandler : PacketRecvHandler
+{
+    public static bool send_S2C_ACK_GET_CART(Player player, Result result, Cart? cart = null)
+    {
+        var ack_packet = new ClientToGame();
+        ack_packet.Response = new ClientToGameRes();
+
+        ack_packet.Response.ErrorCode = result.ErrorCode;
+        ack_packet.Response.GetCartRes = new GetCartRes();
+
+        if(cart != null)
+        {
+            ack_packet.Response.GetCartRes.ItemList.AddRange(cart.toCartItemData4Client());
+        }
+
+        if (false == GameServerApp.getServerLogic().onSendPacket(player, ack_packet))
+        {
+            return false;
+        }
+
+        return true;
+    }
+
+    public override Task<Result> onProcessPacket(ISession entityWithSession, IMessage recvMessage)
+    {
+        var result = new Result();
+        var err_msg = string.Empty;
+
+        var entity_player = entityWithSession as Player;
+        NullReferenceCheckHelper.throwIfNull(entity_player, () => "player is null !!!");
+
+        var cart_action = entity_player.getEntityAction<CartAction>();
+        if (cart_action == null)
+        {
+            err_msg = $"Failed to get cart action : {nameof(CartAction)}";
+            result.setFail(ServerErrorCode.EntityActionNotFound, err_msg);
+            Log.getLogger().error(err_msg);
+
+            send_S2C_ACK_GET_CART(entity_player, result);
+            return Task.FromResult(result);
+        }
+
+        result = cart_action.GetCart4Client();
+        if (result.isFail())
+        {
+            err_msg = $"Failed to GetCart4Client() !!! : {result.toBasicString()} - {entity_player.toBasicString()}";
+            Log.getLogger().error(err_msg);
+            send_S2C_ACK_GET_CART(entity_player, result);
+            return Task.FromResult(result);
+        }
+
+        return Task.FromResult(result);
+    }
+
+    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_GET_CART(player, errorResult);
+    }
+}