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GameServer/Contents/Mail/PacketHandler/GetMailPacketHandler.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 ClientToGameRes.Types;
+
+
+namespace GameServer.PacketHandler;
+
+[PacketHandler(typeof(ClientToGameReq), typeof(ClientToGameReq.Types.GetMailReq), typeof(GetMailPacketHandler), typeof(GameLoginListener))]
+public class GetMailPacketHandler : PacketRecvHandler
+{
+    public static bool send_S2C_ACK_GET_MAIL(Player player, Result result, List<Mail>? new_mail_list = null, MailType mailType = MailType.None, int sendCount = 0)
+    {
+        var ack_packet = new ClientToGame();
+        ack_packet.Response = new ClientToGameRes();
+
+        ack_packet.Response.ErrorCode = result.ErrorCode;
+        ack_packet.Response.GetMailRes = new GetMailRes();
+
+        ack_packet.Response.GetMailRes.MailType = (int)mailType;
+        ack_packet.Response.GetMailRes.SendCount = sendCount;
+
+        if (new_mail_list != null)
+        {
+            foreach (var new_mail in new_mail_list)
+            {
+                ack_packet.Response.GetMailRes.MailList.Add(new_mail.toMailData4Client(mailType));
+            }
+        }
+
+        if (false == GameServerApp.getServerLogic().onSendPacket(player, ack_packet))
+        {
+            return false;
+        }
+
+        return true;
+    }
+
+    public override async 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 mail_action = entity_player.getEntityAction<MailAction>();
+        if (mail_action == null)
+        {
+            err_msg = $"Failed to get mail action : {nameof(MailAction)}";
+            result.setFail(ServerErrorCode.EntityActionNotFound, err_msg);
+            Log.getLogger().error(err_msg);
+
+            send_S2C_ACK_GET_MAIL(entity_player, result);
+            return result;
+        }
+
+        var game_msg = recvMessage as ClientToGame;
+        if (game_msg == null)
+        {
+            err_msg = $"Failed to cast ClientToGame !!! : {nameof(ClientToGame.Request.GetMailReq)}";
+            result.setFail(ServerErrorCode.ClassTypeCastIsNull, err_msg);
+            Log.getLogger().error(result.toBasicString());
+
+            send_S2C_ACK_GET_MAIL(entity_player, result);
+            return result;
+        }
+
+        var request = game_msg.Request.GetMailReq;
+
+        if(EnumHelper.isDefined<MailType>(request.MailType) == false)
+        {
+            err_msg = $"is Not Defined MailType !!! MailType : {request.MailType} - {entity_player.toBasicString()}";
+            result.setFail(ServerErrorCode.ServerTypeInvalid, err_msg);
+            Log.getLogger().error(err_msg);
+            send_S2C_ACK_GET_MAIL(entity_player, result);
+            return result;
+        }
+
+        var mail_type = (MailType)request.MailType;
+
+        result = await mail_action.ProcessGetMail(mail_type);
+        if(result.isFail() == true)
+        {
+            err_msg = $"Failed to ProcessGetMail() !!! : {result.toBasicString()} - {entity_player.toBasicString()}";
+            Log.getLogger().error(err_msg);
+            return result;
+        }
+
+        return 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_MAIL(player, errorResult);
+    }
+}