using System;

namespace Tanshu.Accounts.Repository
{
    public static class DbValuesProgres
    {
        public static DateTime Date
        {
            get
            {
                using (var session = SessionManager.Session)
                {
                    var query = session.CreateSQLQuery("SELECT now();");
                    return (DateTime)query.UniqueResult();
                }
            }
        }
        public static string KotID
        {
            get
            {
                using (var session = SessionManager.Session)
                {
                    const string query = @"SELECT ISNULL('K-' + CAST(MAX(CAST(SUBSTRING(KotID, 3,8) AS int)) + 1 AS nvarchar(8)), 'K-1') FROM Entities_Vouchers";
                    var sqlQuery = session.CreateSQLQuery(query);
                    return (string)sqlQuery.UniqueResult();
                }
            }
        }
        public static string KotCode
        {
            get
            {
                using (var session = SessionManager.Session)
                {
                    const string query = @"SELECT ISNULL('S-' + CAST(MAX(CAST(SUBSTRING(Code, 3,8) AS int)) + 1 AS nvarchar(8)), 'S-1') FROM Entities_Kots";
                    var sqlQuery = session.CreateSQLQuery(query);
                    return (string)sqlQuery.UniqueResult();
                }
            }
        }
        public static string BillID
        {
            get
            {
                using (var session = SessionManager.Session)
                {
                    const string query = @"
        DECLARE @BillID nvarchar(10)
		SELECT @BillID = ISNULL(CAST(MAX(CAST(REPLACE(BillID, '-', '') AS int)) + 1 AS nvarchar(9)), '010001') FROM Entities_Vouchers WHERE BillID LIKE '__-____'
		IF LEN(@BillID) = 5
		SET @BillID = '0' + @BillID
		SET @BillID = SUBSTRING(@BillID, 1, 2) + '-' + SUBSTRING(@BillID, 3, 7) 
		IF SUBSTRING(@BillID,3,7) = '-0000'
		SET @BillID = SUBSTRING(@BillID, 1, 2) + '-0001'
        SELECT @BillID";
                    var sqlQuery = session.CreateSQLQuery(query);
                    return (string)sqlQuery.UniqueResult();
                }
            }
        }
    }
}