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_CALIUM_CONVERTER), typeof(GetCaliumConverterInfoPacketHandler), typeof(GameLoginListener))]
public class GetCaliumConverterInfoPacketHandler : PacketRecvHandler
{
    private static void send_S2C_ACK_CALIUM_CONVERTER(Player owner, Result result, double calium, float caliumForUser, float caliumEfficiency)
    {
        var ack_packet = new ClientToGame
        {
            Response = new ClientToGameRes
            {
                ErrorCode = result.ErrorCode,
                AckCaliumConverter = new()
            }
        };

        if (result.isSuccess())
        {
            ack_packet.Response.AckCaliumConverter.Calium = calium;
            ack_packet.Response.AckCaliumConverter.CaliumEfficiency = caliumEfficiency;
            ack_packet.Response.AckCaliumConverter.CaliumForUser = caliumForUser;
        }

        GameServerApp.getServerLogic().onSendPacket(owner, ack_packet);
    }

    public override async Task<Result> onProcessPacket(ISession entityWithSession, IMessage recvMessage)
    {
        var result = new Result();
        string err_msg;
        var player = entityWithSession as Player;
        NullReferenceCheckHelper.throwIfNull(player, () => "player is null !!!");

        // 1. 기본 정보 체크
        var request = (recvMessage as ClientToGame)?.Request.ReqCaliumConverter;
        if (null == request)
        {
            err_msg = $"Failed to get request type !!! : {nameof(ClientToGame.Request.ReqCaliumConverter)}";
            result.setFail(ServerErrorCode.InvalidArgument, err_msg);
            Log.getLogger().error(result.toBasicString());

            send_S2C_ACK_CALIUM_CONVERTER(player, result, 0, 0, 0);
            return result;
        }

        result = await player.runTransactionRunnerSafely(TransactionIdType.PrivateContents, "GetCaliumConverterInfo", getCaliumConverterInfoDelegase);
        if (result.isFail())
        {
            err_msg = $"Failed to runTransactionRunnerSafely()!!! : {result.toBasicString()} - {player.toBasicString()}";
            Log.getLogger().error(err_msg);
            
            send_S2C_ACK_CALIUM_CONVERTER(player, result, 0, 0, 0);
            return result;
        }

        // 2. 총 칼리움 잔여량 체크
        var calium_converter = GameServerApp.getServerLogic().findGlobalEntity<CaliumStorageEntity>();
        NullReferenceCheckHelper.throwIfNull(calium_converter, () => $"calium converter is null !!!");
        
        var calium_storage_action = calium_converter.getEntityAction<CaliumStorageAction>();
        NullReferenceCheckHelper.throwIfNull(calium_storage_action, () => $"calium_storage_action is null !!! - {calium_converter.toBasicString()}");

        var calium = calium_storage_action.getTotalCalium(CaliumStorageType.Converter);
        if (calium < 0)
        {
            err_msg = $"Failed to load calium !!! : {nameof(calium_storage_action.getTotalCalium)}";
            result.setFail(ServerErrorCode.FailToLoadCalium, err_msg);
            Log.getLogger().error(result.toBasicString());

            send_S2C_ACK_CALIUM_CONVERTER(player, result, 0, 0, 0);
            return result;
        }
        
        // 3. 변환 에너지 효율 체크
        var calium_efficiency = await calium_storage_action.getCaliumConverterEfficiency();
            
        // 4. 일일 제공 잔여량 체크
        var user_calium_attribute = player.getEntityAttribute<CaliumAttribute>();
        NullReferenceCheckHelper.throwIfNull(user_calium_attribute, () => $"user_calium_attribute is null !!! - {player.toBasicString()}");
        
        send_S2C_ACK_CALIUM_CONVERTER(player, result, calium, (float)user_calium_attribute.DailyCalium, (float)calium_efficiency);
        
        return result;

        async Task<Result> getCaliumConverterInfoDelegase() => await getCaliumConverterInfoAsync(player);
    }

    private async Task<Result> getCaliumConverterInfoAsync(Player player)
    {
        var result = new Result();
        var current_pivot_date = CaliumStorageHelper.CurrentPivotTimeDate();
        var is_create = false;
        
        // 1. attribute 가져오기
        var attribute = player.getEntityAttribute<CaliumAttribute>();
        NullReferenceCheckHelper.throwIfNull(attribute, () => $"CaliumAttribute is null !!! - {player.toBasicString()}");

        // 2. origin doc 이 없으면 신규 생성 처리
        var origin_doc = attribute.getOriginDocBase<CaliumAttribute>();
        if (null == origin_doc)
        {
            var new_doc = new CaliumDoc(player.getUserGuid());
            var attrib = new_doc.getAttrib<CaliumAttrib>();
            NullReferenceCheckHelper.throwIfNull(attrib, () => $"CaliumAttrib is null !!! - {player.toBasicString()}");
            
            attrib.DailyCalium = (double)MetaHelper.GameConfigMeta.CaliumConverterLimitPerPerson;
            attrib.ProvidedDate = current_pivot_date;

            attribute.copyEntityAttributeFromDoc(new_doc);
            attribute.newEntityAttribute();
            is_create = true;
        }
        
        // 3. 일일 지급 갱신 주기 체크
        if (null != origin_doc && attribute.ProvidedDate >= current_pivot_date)
        {
            return result;
        }

        if (false == is_create)
        {
            attribute.DailyCalium = (double)MetaHelper.GameConfigMeta.CaliumConverterLimitPerPerson;
            attribute.ProvidedDate = current_pivot_date;
            attribute.modifiedEntityAttribute();   
        }

        // 4. db 갱신
        var batch = new QueryBatchEx<QueryRunnerWithDocument>( player, LogActionType.ChangeConvertCaliumInfo, GameServerApp.getServerLogic().getDynamoDbClient(), true);
        {
            batch.addQuery(new DBQWriteToAttributeAllWithTransactionRunner());
            batch.addQuery(new QueryFinal());
        }

        result = await QueryHelper.sendQueryAndBusinessLog(batch);
        return result;
    }
}