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GameServer/Contents/Npc/PacketHandler/NpcInfoPacketHandler.cs

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+using Google.Protobuf;
+using Google.Protobuf.WellKnownTypes;
+
+
+using ServerCore;
+using ServerBase;
+using ServerCommon;
+using ServerCommon.BusinessLogDomain;
+using MetaAssets;
+
+
+using SESSION_ID = System.Int32;
+using WORLD_META_ID = System.UInt32;
+using META_ID = System.UInt32;
+using ENTITY_GUID = System.String;
+using ACCOUNT_ID = System.String;
+using OWNER_GUID = System.String;
+using USER_GUID = System.String;
+using CHARACTER_GUID = System.String;
+using ITEM_GUID = System.String;
+using NPC_UNIQUE_ID = System.String;
+using UGC_NPC_META_GUID = System.String;
+
+
+using static ClientToGameMessage.Types;
+using static ClientToGameReq.Types;
+using static ClientToGameRes.Types;
+
+
+
+namespace GameServer.PacketHandler;
+
+[PacketHandler(typeof(ClientToGameReq), typeof(C2GS_REQ_NPC_INFO), typeof(NpcInfoPacketHandler), typeof(GameLoginListener))]
+public class NpcInfoPacketHandler : PacketRecvHandler
+{
+    public static bool send_S2C_ACK_NPC_INFO( Player owner, Result result
+                                            , NPC_UNIQUE_ID npcUniqueId = "", OWNER_GUID ownerUserGuid = "", string debugString = "" )
+    {
+        ArgumentNullException.ThrowIfNull(owner, $"owner is null !!!");
+        ArgumentNullException.ThrowIfNull(result, $"result is null !!! - {owner.toBasicString()}");
+
+        var ack_packet = new ClientToGame();
+        ack_packet.Response = new ClientToGameRes();
+
+        ack_packet.Response.ErrorCode = result.ErrorCode;
+
+        ack_packet.Response.AckNpcInfo = new GS2C_ACK_NPC_INFO();
+        ack_packet.Response.AckNpcInfo.DebugString = debugString;
+
+        if (result.isSuccess())
+        {
+            ack_packet.Response.AckNpcInfo.NpcUniqueId = npcUniqueId;
+            ack_packet.Response.AckNpcInfo.OwnerUserGuid = ownerUserGuid;
+        }
+
+        if (false == GameServerApp.getServerLogic().onSendPacket(owner, ack_packet))
+        {
+            return false;
+        }
+
+        var err_msg = $"send_S2C_ACK_NPC_INFO() !!! : {result.toBasicString()} - {owner.toBasicString()}";
+        Log.getLogger().info(err_msg);
+
+        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;
+        ArgumentNullException.ThrowIfNull(player, $"player is null !!!");
+
+        var recv_msg = recvMessage as ClientToGame;
+        ArgumentNullException.ThrowIfNull(recv_msg, $"recv_msg is null !!! - {player.toBasicString()}");
+        var request = recv_msg.Request.ReqNpcInfo;
+        ArgumentNullException.ThrowIfNull(request, $"request is null !!! - {player.toBasicString()}");
+
+        var player_action = player.getEntityAction<PlayerAction>();
+        ArgumentNullException.ThrowIfNull(player_action, $"player_action is null !!! - {player.toBasicString()}");
+
+        var selected_character = player_action.getSelectedCharacter();
+        if (null == selected_character)
+        {
+            err_msg = $"Not selected Character !!! - {player.toBasicString()}";
+            result.setFail(ServerErrorCode.CharacterNotSelected, err_msg);
+            Log.getLogger().error(result.toBasicString());
+
+            send_S2C_ACK_NPC_INFO(player, result);
+            return result;
+        }
+
+        var server_logic = GameServerApp.getServerLogic();
+        ArgumentNullException.ThrowIfNull(server_logic, $"server_logic is null !!! - {player.toBasicString()}");
+
+        var fn_npc_info_getting = async delegate ()
+        {
+            var result = new Result();
+
+            var started_transaction_runner = player.findTransactionRunner(TransactionIdType.PrivateContents);
+            ArgumentNullException.ThrowIfNull(started_transaction_runner, $"started_transaction_runner is null !!! - {player.toBasicString()}");
+
+            var npc_action = player.getEntityAction<NpcInteractionAction>();
+            ArgumentNullException.ThrowIfNull(npc_action, $"npc_action is null !!! - {player.toBasicString()}");
+
+            (result, var found_ugc_npc, var found_master) = await npc_action.findNpc(request.TouchedNpcType, request.NpcUniqueId, request.OwnerUserGuid);
+            if (result.isFail())
+            {
+                err_msg = $"Failed to NpcHelper.findNpc() !!! : {result.toBasicString()} - {started_transaction_runner.toBasicString()}, {player.toBasicString()}";
+                Log.getLogger().error(err_msg);
+
+                send_S2C_ACK_NPC_INFO(player, result);
+                return result;
+            }
+            NullReferenceCheckHelper.throwIfNull(found_ugc_npc, () => $"found_ugc_npc is null !!!");
+            
+            await NpcHelper.notifyNpcInfo(player, request.TouchedNpcType, found_ugc_npc);
+
+            send_S2C_ACK_NPC_INFO(player, result, request.NpcUniqueId, request.OwnerUserGuid);
+
+            return result;
+        };
+
+        result = await player.runTransactionRunnerSafely(TransactionIdType.PrivateContents, "fn_npc_info_getting", fn_npc_info_getting);
+        if (result.isFail())
+        {
+            err_msg = $"Failed to runTransactionRunnerSafely() !!! : {result.toBasicString()} - {player.toBasicString()}";
+            Log.getLogger().error(err_msg);
+        }
+
+        return result;
+    }
+}