using Google.Protobuf;
using Google.Protobuf.WellKnownTypes;


using ServerCore;
using ServerBase;
using ServerCommon;
using ServerCommon.BusinessLogDomain;
using MetaAssets;



namespace GameServer.PacketHandler;

[PacketHandler(typeof(ClientToGameReq), typeof(ClientToGameReq.Types.RePurchaseItemReq), typeof(RePurchaseItemPacketHandler), typeof(GameLoginListener))]
public class RePurchaseItemPacketHandler : PacketRecvHandler
{
    private static void send_S2C_ACK_SHOP_RE_PURCHASE_LIST(Player? owner, Result result, List<Item>? rePurchaseItems)
    {
        var ack_packet = new ClientToGame
        {
            Response = new ClientToGameRes
            {
                ErrorCode = result.ErrorCode,
                RePurchaseItemRes = new ClientToGameRes.Types.RePurchaseItemRes()
            }
        };
        
        // 데이터 가져오기
        if (result.isSuccess())
        {
            if (null != rePurchaseItems)
            {
                foreach (var info in rePurchaseItems)
                {
                    var attribute = info.getEntityAttribute<ItemAttributeBase>();
                    var item = new global::Item
                    {
                        ItemGuid = attribute!.ItemGuid,
                        ItemId = (int)attribute.ItemMetaId,
                        Count = attribute.ItemStackCount,
                        Level = attribute.Level,
                        Slot = attribute.EquipedPos
                    };
                    item.Attributeids.AddRange(attribute.Attributes.Select(attrib => (int)attrib));


                    ack_packet.Response.RePurchaseItemRes.Items.Add(item);
                }
            }

            var account_attribute = owner!.getEntityAttribute<AccountAttribute>();
            var level_attribute = owner.getEntityAttribute<LevelAttribute>();
            var money_attribute = owner.getEntityAttribute<MoneyAttribute>();
            var nickname_attribute = owner.getEntityAttribute<NicknameAttribute>();

            var char_info = new CharInfo
            {
                Level = (int)level_attribute!.Level,
                Exp = (int)level_attribute.Exp,
                
                Gold = money_attribute!.Gold,
                Sapphire = money_attribute.Sapphire,
                Calium = money_attribute.Calium,
                Ruby = money_attribute.Ruby,
                
                Usergroup = account_attribute!.AuthAdminLevelType.ToString(), 
                Operator = (int)account_attribute.AuthAdminLevelType,
                
                DisplayName = nickname_attribute!.Nickname,
                LanguageInfo = (int)account_attribute.LanguageType,
                
                IsIntroComplete = 1
            };
            ack_packet.Response.RePurchaseItemRes.CurrencyInfo = char_info;
        }

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

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

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

            send_S2C_ACK_SHOP_RE_PURCHASE_LIST(entity_player, result, null);
            return result;
        }
        
        result = await entity_player.runTransactionRunnerSafely(TransactionIdType.PrivateContents, "RePurchaseSoldItem", rePurchaseItemDelegate);
        if (result.isFail())
        {
            err_msg = $"Failed to runTransactionRunnerSafely()!!! : {result.toBasicString()} - {entity_player.toBasicString()}";
            Log.getLogger().error(err_msg);
            
            send_S2C_ACK_SHOP_RE_PURCHASE_LIST(entity_player, result, null);
        }
        
        return result;

        async Task<Result> rePurchaseItemDelegate() => await rePurchaseItemAsync(entity_player, request.ItemGuid);
    }

    private async Task<Result> rePurchaseItemAsync(Player entity_player, string item_guid)
    {
        var result = new Result();
        string err_msg;
        
        var shop_action = entity_player.getEntityAction<ShopAction>();
        var sold_action = shop_action.getSolProductAction();
        
        // 1. 재구매 아이템 체크
        var sold_item = sold_action.findSoldProduct(item_guid);
        if (null == sold_item)
        {
            err_msg = $"Fail to get item info () !!! : {nameof(ShopSoldProductAction.findSoldProduct)} - {item_guid}";
            result.setFail(ServerErrorCode.NotFoundItemTableId, err_msg);
            Log.getLogger().error(err_msg);
            return result;
        }
        
        // 2. item 정보 체크
        var item_attrib = sold_item.ItemDoc.getAttrib<ItemAttrib>();
        NullReferenceCheckHelper.throwIfNull(item_attrib, () => $"item_attrib is null !!! - {entity_player.toBasicString()}");

        (result, var item_data) = ShopHelper.checkItemIdFromTableData((int)item_attrib.ItemMetaId);
        if (result.isFail()) return result;

        NullReferenceCheckHelper.throwIfNull(item_data, () => $"item_data is null !!! - {entity_player.toBasicString()}");

        // 3. 아이템 지급
        var process_re_purchase = await shop_action.processRePurchase(item_data, sold_item);
        if (process_re_purchase.result.isFail()) return process_re_purchase.result;

        NullReferenceCheckHelper.throwIfNull(process_re_purchase.changed_item, () => $"process_re_purchase.changed_item is null !!! - {entity_player.toBasicString()}");

        // 4. 재화 감소
        result = await shop_action.processSpent(process_re_purchase.spent_currency_type, process_re_purchase.spent_currency);
        if (result.isFail()) return result;
        
        // 5. DB 갱신
        var batch = new QueryBatchEx<QueryRunnerWithDocument>( entity_player, LogActionType.ShopRePurchase, GameServerApp.getServerLogic().getDynamoDbClient());
        {
            batch.addQuery(new DBQWriteToAttributeAllWithTransactionRunner());
            batch.addQuery(new QueryFinal());
        }
        
        result = await QueryHelper.sendQueryAndBusinessLog(batch);
        if (result.isFail()) return result;

        send_S2C_ACK_SHOP_RE_PURCHASE_LIST(entity_player, result, new List<Item> { process_re_purchase.changed_item } );

        return result;
    }
}