namespace YLErp.Modules.TradeModule
{
    /// <summary>
    /// 交易审核日志
    /// </summary>
    public class TradeAuditLogService : YLBaseService
    {
        public TradeAuditLogService(OptUserInfo userInfo) : base(userInfo)
        {
        }

        public TradeAuditLogService(YLBaseService baseService) : base(baseService)
        {
        }

        /// <summary>
        /// 获取成交确认字段变更信息
        /// </summary>
        public IEnumerable<TradeChangeInfo> GetLastConfirmChangeMsg(int tradeId)
        {
            var lastConfirmId = DbContext.TradeAuditLog
                .Where(n => n.TradeId == tradeId && n.OptType.Contains("确认交易"))
                .OrderByDescending(n => n.id)
                .Select(n => (long?)n.id).FirstOrDefault();

            IEnumerable<TradeChangeInfo> changes = null;

            if (lastConfirmId.HasValue)
            {
                var datas = DbContext.TradeAuditLog
                      .Where(n => n.TradeId == tradeId && (n.AuditFlag & TradeAuditFlag.changMsg) == TradeAuditFlag.changMsg)
                      .OrderBy(n => n.id).Select(n => new { n.DataType, n.Changes }).ToArray();
                foreach (var data in datas)
                {
                    TradeChangeInfo[] changes2 = null;
                    if (data.DataType == "C02")
                    {
                        var arr = JsonHelper.ToObject<string[][]>(data.Changes);
                        List<TradeChangeInfo> list = new List<TradeChangeInfo>();
                        foreach (var item in arr)
                        {
                            if (item[4] != "1")
                            {
                                continue;
                            }
                            list.Add(new TradeChangeInfo()
                            {
                                PropName = item[0],
                                DisplayName = item[1],
                                OldValue = item[2],
                                NewValue = item[3],
                                AuditFlag = TradeAuditFlag.changMsg
                            });
                        }
                        changes2 = list.ToArray();
                    }
                    else
                    {
                        changes2 = TradeChangeUtil.DeserializeChanges(data.Changes).Where(n => n.IsChangeMsg).ToArray();
                    }

                    if (changes == null)
                    {
                        changes = changes2;
                    }
                    else
                    {
                        changes = TradeChangeUtil.MergeChanges(changes, changes2);
                    }
                }
            }

            return changes;
        }
    }
}