using YLErp.BLL;

namespace YLErp.Modules.ClientModule
{
    public class ClientHierarchyService : ClientBaseService
    {
        public ClientHierarchyService(OptUserInfo userInfo) : base(userInfo)
        {

        }
        public List<Client> clients = new List<Client>();
        public List<Client> clientsdata = new List<Client>();
        public List<Clientlayered> Treeleveldata(int clientid)
        {
            var systemDate = valuedateBLL.SystemDate;
            List<Client> client = DataCacheProvider.GetClientDataSource().AsQueryable().ToList();
            var nowclient = client.Where(c => c.id == clientid).FirstOrDefault();
            if (nowclient == null)
            {
                throw new ServiceException("当前客户已不存在");
            }
            clients.Add(client.Where(c => c.id == clientid).FirstOrDefault());
            FoundChildNode(client, client.Where(c => c.id == clientid).FirstOrDefault());
            var ParentData = clients.Where(c => c.ParentId == 0).FirstOrDefault();
            clientsdata.Add(ParentData);
            List<Client> res = FoundParentNode(client, ParentData);

            var query = from cli in res
                        join cd in yldb.credit.Where(t => t.ProcessStatus == "已审批" &&
          (!t.CreditDeadLine.HasValue || t.CreditDeadLine >= systemDate.ValueDate) && (!t.CreditStartDate.HasValue || t.CreditStartDate <= systemDate.ValueDate)).ToList()
          on cli.id equals cd.ClientId into cl
                        from clie in cl.DefaultIfEmpty()
                        select new Clientlayered { Credit = clie == null ? 0 : clie.Credit ?? 0, StockEqvNotional = clie == null ? 0 : clie.StockEqvNotional ?? 0, id = cli.id, Name = cli.Name, ParentId = cli.ParentId, ProcessStatus = cli.ProcessStatus };

            return query.ToList();
        }

        public void FoundChildNode(List<Client> all, Client item)
        {
            Client childItems = all.Where(c => c.id == item.ParentId).FirstOrDefault();

            if (childItems != null)
            {
                clients.Add(childItems);
                FoundChildNode(all, childItems);
            }
        }
        public List<Client> FoundParentNode(List<Client> all, Client clientlist)
        {

            List<Client> childItems = all.Where(c => c.ParentId == clientlist.id).ToList();
            foreach (var item in childItems)
            {

                clientsdata.Add(item);
                FoundParentNode(all, item);
            }
            return clientsdata;
        }
    }
    public class Clientlayered
    {
        /// <summary>
        /// 客户Id
        /// </summary>
        public int id { get; set; }
        /// <summary>
        /// 客户名称
        /// </summary>
        public string Name { get; set; }
        /// <summary>
        /// 父级Id
        /// </summary>
        public int ParentId { get; set; }
        /// <summary>
        ///授信额度
        /// </summary>
        public double Credit { get; set; }
        /// <summary>
        /// 名义本金规模
        /// </summary>
        public double StockEqvNotional { get; set; }
        /// <summary>
        /// 用户状态
        /// </summary>
        public string ProcessStatus { get; set; }

    }

}