using GameServer.PacketHandler;
using ServerCommon;
using ServerCore; using ServerBase;
using System;
using System.Collections.Concurrent;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace GameServer
{
    public class LanguageAction : EntityActionBase
    {
        public LanguageAction(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> saveLanguage(LanguageType language_type)
        {
            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();

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

                var account_attribute = player.getEntityAttribute<AccountAttribute>();
                if (account_attribute == null)
                {
                    err_msg = $"Failed to get account attribute : {nameof(AccountAttribute)}";
                    result.setFail(ServerErrorCode.EntityAttributeIsNull, err_msg);
                    Log.getLogger().error(err_msg);
                    SaveLanguagePacketHandler.send_S2C_ACK_SAVE_LANGUAGE(player, result);
                    return result;
                }

                account_attribute.LanguageType = language_type;
                account_attribute.modifiedEntityAttribute();

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

                result = await QueryHelper.sendQueryAndBusinessLog(batch);
                if (result.isFail())
                {
                    SaveLanguagePacketHandler.send_S2C_ACK_SAVE_LANGUAGE(player, result);
                    return result;
                }

                SaveLanguagePacketHandler.send_S2C_ACK_SAVE_LANGUAGE(player, result);
                return result;
            };

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

            return result;
        }
    }
}