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GameServer/Contents/ItemFunction/PacketHandler/UseMegaPhoneItemPacketHandler.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(ClientToGameReq.Types.UseMegaPhoneItemReq), typeof(UseMegaPhoneItemPacketHandler), typeof(GameLoginListener))]
+public class UseMegaPhoneItemPacketHandler : PacketRecvHandler
+{
+    public static bool send_S2C_ACK_USE_MEGAPHONE_ITEM(Player player, Result result, ITEM_GUID used_item_guid, Int32 left_count)
+    {
+        var ack_packet = new ClientToGame();
+        ack_packet.Response = new ClientToGameRes();
+
+        ack_packet.Response.ErrorCode = result.ErrorCode;
+        ack_packet.Response.UseMegaPhoneItemRes = new();
+
+        ack_packet.Response.UseMegaPhoneItemRes.ItemGuid = used_item_guid;
+        ack_packet.Response.UseMegaPhoneItemRes.Count = left_count;
+
+        if (false == GameServerApp.getServerLogic().onSendPacket(player, ack_packet))
+        {
+            return false;
+        }
+
+        return true;
+    }
+
+    public override async Task<Result> onProcessPacket(ISession entityWithSession, IMessage recvMessage)
+    {
+        var player = entityWithSession as Player;
+        ArgumentNullReferenceCheckHelper.throwIfNull(player, () => $"player is null !!!");
+        var req_msg = recvMessage as ClientToGame;
+        ArgumentNullReferenceCheckHelper.throwIfNull(req_msg, () => $"req_msg is null !!! - {player.toBasicString()}");
+        var request = req_msg.Request.UseMegaPhoneItemReq;
+        ArgumentNullReferenceCheckHelper.throwIfNull(request, () => $"request is null !!! - {player.toBasicString()}");
+
+        var result = new Result();
+        var err_msg = string.Empty;
+
+        var server_logic = GameServerApp.getServerLogic();
+
+        var inventory_action = player.getEntityAction<InventoryActionBase>();
+        NullReferenceCheckHelper.throwIfNull(inventory_action, () => $"inventory_action is null !!! - {player.toBasicString()}");
+
+        var item = inventory_action.tryGetItemByItemGuid(request.ItemGuid);
+        if(item == null)
+        {
+            err_msg = $"Failed to find item : {request.ItemGuid}";
+            result.setFail(ServerErrorCode.ItemNotFound, err_msg);
+            Log.getLogger().error(result.toBasicString());
+            return result;
+        }
+
+        var item_data = item.getItemMeta();
+        if (item_data == null)
+        {
+            err_msg = $"Failed to find item meta : {request.ItemGuid}";
+            result.setFail(ServerErrorCode.ItemMetaDataNotFound, err_msg);
+            Log.getLogger().error(result.toBasicString());
+            return result;
+        }
+
+        if (item_data.TypeLarge != MetaAssets.EItemLargeType.EXPENDABLE || item_data.TypeSmall != MetaAssets.EItemSmallType.MEGAPHONE)
+        {
+            err_msg = $"Invalid ItemType. TypeLarge : {item_data.TypeLarge}, TypeSmall : {item_data.TypeSmall} {request.ItemGuid}";
+            result.setFail(ServerErrorCode.ItemInvalidItemType, err_msg);
+            Log.getLogger().error(result.toBasicString());
+            return result;
+        }
+
+        var fn_use_mega_phone = async delegate ()
+        {
+            var result = new Result();
+
+            (result, Item? removed_item) = await inventory_action.tryDeleteItemByGuid(request.ItemGuid, 1);
+            if (result.isFail())
+            {
+                err_msg = $"Failed to tryDeleteItemByGuid() !!! : {result.toBasicString()} - {player.toBasicString()}";
+                Log.getLogger().error(err_msg);
+
+                send_S2C_ACK_USE_MEGAPHONE_ITEM(player, result, "", 0);
+                return result;
+            }
+            NullReferenceCheckHelper.throwIfNull(removed_item, () => $"removed_item is null !!! - {player.toBasicString()}");
+
+            var batch = new QueryBatchEx<QueryRunnerWithDocument>( player, LogActionType.ItemUse
+                                                               , server_logic.getDynamoDbClient()
+                                                               , true );
+            {
+                batch.addQuery(new DBQWriteToAttributeAllWithTransactionRunner());
+            }
+
+            result = await QueryHelper.sendQueryAndBusinessLog(batch);
+            if (result.isFail())
+            {
+                return result;
+            }
+
+            var removed_item_attribute = removed_item.getEntityAttribute<ItemAttributeBase>();
+            NullReferenceCheckHelper.throwIfNull(removed_item_attribute, () => $"removed_item_attribute is null !!! - {player.toBasicString()}");
+
+            send_S2C_ACK_USE_MEGAPHONE_ITEM(player, result, removed_item_attribute.ItemGuid, removed_item_attribute.ItemStackCount);
+
+            var receivers = server_logic.getPlayerManager().getUsers();
+            foreach (var receiver in receivers)
+            {
+                ChatNotifyHelper.send_S2C_NTF_CHAT(receiver.Value, ChatType.Channel, player.getUserNickname(), receiver.Value.getUserNickname(), PlayerStateType.None, request.Message);
+            }
+
+            return result;
+        };
+
+        result = await player.runTransactionRunnerSafely(TransactionIdType.PrivateContents, "UseMegaPhone", fn_use_mega_phone);
+        if (result.isFail())
+        {
+            err_msg = $"Failed to runTransactionRunnerSafely()!!! : {result.toBasicString()} - {player.toBasicString()}";
+            Log.getLogger().error(err_msg);
+
+            return result;
+        }
+
+        return result;
+    }
+}