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.C2GS_REQ_CUSTOM_DEFINED_UI_DELETE), typeof(CustomDefinedUiDeletePacketHandler), typeof(GameLoginListener))]
public class CustomDefinedUiDeletePacketHandler : PacketRecvHandler
{
    public override async Task onProcessPacketException( ISession entityWithSession, Google.Protobuf.IMessage recvMessage
                                                       , Result errorResult )
    {
        await Task.CompletedTask;

        var player = entityWithSession as Player;
        NullReferenceCheckHelper.throwIfNull(player, () => $"player is null !!! - {entityWithSession.toBasicString()}");

        var recv_msg = recvMessage as ClientToGame;
        NullReferenceCheckHelper.throwIfNull(recv_msg, () => $"recv_msg is null !!! - {player.toBasicString()}");

        var request = recv_msg.Request.ReqCustomDefinedUIDelete;

        send_S2C_ACK_CUSTOM_DEFINED_UI_DELETE(player, errorResult, new List<string>());
    }

    public static bool send_S2C_ACK_CUSTOM_DEFINED_UI_DELETE(Player player, Result result, List<string> deletedCustomDefinedUIKeys)
    {
        var ack_packet = new ClientToGame();
        ack_packet.Response = new ClientToGameRes();

        ack_packet.Response.ErrorCode = result.ErrorCode;
        ack_packet.Response.AckCustomDefinedUIDelete = new();
        ack_packet.Response.AckCustomDefinedUIDelete.DeletedUiKeys.Add(deletedCustomDefinedUIKeys);

        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 player = entityWithSession as Player;
        NullReferenceCheckHelper.throwIfNull(player, () => $"player is null !!!");

        var recv_packet = recvMessage as ClientToGame;
        NullReferenceCheckHelper.throwIfNull(recv_packet, () => $"recv_packet is null !!! - {player.toBasicString()}");

        var request = recv_packet.Request.ReqCustomDefinedUIDelete;
        
        var server_logic = GameServerApp.getServerLogic();

        var custom_defined_ui_action = player.getEntityAction<CustomDefinedUiAction>();
        NullReferenceCheckHelper.throwIfNull(custom_defined_ui_action, () => $"custom_defined_ui_action is null !!! - {player.toBasicString()}");

        var fn_custom_defined_ui_delete = async delegate ()
        {
            var result = new Result();
            var err_msg = string.Empty;

            var to_delete_custom_defined_ui_keys = request.ToDeleteUiDatas;

            foreach (var ui_key in to_delete_custom_defined_ui_keys)
            {
                if(!custom_defined_ui_action.findCustomDefinedUi(ui_key, out var found_custom_defined_ui))
                {
                    err_msg = $"Not found CustomDefinedUI !!! : UIKey:{ui_key} - {player.toBasicString()}";
                    Log.getLogger().warn(err_msg);
                    continue;
                }

                var custom_defined_ui_attribute = found_custom_defined_ui.getEntityAttribute<CustomDefinedUiAttribute>();
                NullReferenceCheckHelper.throwIfNull(custom_defined_ui_attribute, () => $"custom_defined_ui_attribute is null !!! - {player.toBasicString()}");

                custom_defined_ui_attribute.UiKey = ui_key;
                custom_defined_ui_attribute.deleteEntityAttribute();
            }

            var batch = new QueryBatchEx<QueryRunnerWithDocument>( player, LogActionType.UpdateCustomDefineUi
                                                               , server_logic.getDynamoDbClient());
            {
                batch.addQuery(new DBQWriteToAttributeAllWithTransactionRunner());
                batch.addQuery(new QueryFinal()
                              , async (_query) =>
                              {
                                  await Task.CompletedTask;

                                  foreach (var ui_key in to_delete_custom_defined_ui_keys)
                                  {
                                      custom_defined_ui_action.removeCustomDefinedUi(ui_key);
                                  }

                                  return QueryBatchBase.QueryResultType.Success;
                              }
                              , null);
            }

            result = await QueryHelper.sendQueryAndBusinessLog(batch);
            if (result.isFail())
            {
                send_S2C_ACK_CUSTOM_DEFINED_UI_DELETE(player, result, new List<string>());
                return result;
            }

            send_S2C_ACK_CUSTOM_DEFINED_UI_DELETE(player, result, to_delete_custom_defined_ui_keys.ToList());
            return result;
        };

        result = await player.runTransactionRunnerSafely(TransactionIdType.PrivateContents, "CustomDefinedUIDelete", fn_custom_defined_ui_delete);
        if (result.isFail())
        {
            err_msg = $"Failed to runTransactionRunnerSafely()!!! : {result.toBasicString()} - {player.toBasicString()}";
            Log.getLogger().error(err_msg);
        }

        return result;
    }
}