using Amazon.DynamoDBv2.DocumentModel;
using GameServer.PacketHandler;
using Google.Protobuf.Collections;
using ServerCommon;
using ServerCore; using ServerBase;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace GameServer
{
    public class GameOptionAction : EntityActionBase
    {
        public GameOptionAction(EntityBase owner) : base(owner)
        {
        }

        public override Task<Result> onInit()
        {
            var result = new Result();

            return Task.FromResult(result);
        }

        public override void onClear()
        {
            return;
        }
        
        public async Task<Result> SaveGameOption(RepeatedField<int> gameOptionList)
        {
            var result = new Result();
            var err_msg = string.Empty;

            var player = getOwner() as Player;
            NullReferenceCheckHelper.throwIfNull(player, () => "player is null !!!");
            var server_logic = GameServerApp.getServerLogic();

            string req_client_options = string.Empty;

            try
            {
                byte[] byteOptions = Array.ConvertAll<int, byte>(gameOptionList.ToArray(), Convert.ToByte);
                req_client_options = Convert.ToBase64String(byteOptions);
            }
            catch
            {
                err_msg = $"Convert Failed. GameOption Size is too big.";
                result.setFail(ServerErrorCode.EntityAttributeIsNull, err_msg);
                Log.getLogger().error(err_msg);
                ChangeGameOptionPacketHandler.send_S2C_ACK_CHANGE_GAME_OPTION(player, result);
                return result;
            }

            var fn_save_game_option = async delegate ()
            {
                var result = new Result();

                var game_option_attribute = player.getEntityAttribute<GameOptionAttribute>();
                if (game_option_attribute == null)
                {
                    err_msg = $"Failed to get game option attribute : {nameof(GameOptionAttribute)}";
                    result.setFail(ServerErrorCode.EntityAttributeIsNull, err_msg);
                    Log.getLogger().error(err_msg);
                    ChangeGameOptionPacketHandler.send_S2C_ACK_CHANGE_GAME_OPTION(player, result);
                    return result;
                }

                game_option_attribute.options = req_client_options;
                game_option_attribute.modifiedEntityAttribute(true);

                var batch = new QueryBatchEx<QueryRunnerWithDocument>(player, LogActionType.UpdateGameOption
                                                               , server_logic.getDynamoDbClient());
                {
                    batch.addQuery(new DBQWriteToAttributeAllWithTransactionRunner());
                }

                result = await QueryHelper.sendQueryAndBusinessLog(batch);
                if (result.isFail())
                {
                    ChangeGameOptionPacketHandler.send_S2C_ACK_CHANGE_GAME_OPTION(player, result);
                    return result;
                }

                ChangeGameOptionPacketHandler.send_S2C_ACK_CHANGE_GAME_OPTION(player, result);
                return result;
            };

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

            return result;
        }
    }
}