using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace bnhtrade.Core.Logic.Validate
{
    public  static class Format
    {
        /// <summary>
        /// Validates that an sku number string is the correct format i.e. 000000-00
        /// </summary>
        /// <param name="skuNumber"></param>
        /// <returns></returns>
        public static bool SkuNumber(string skuNumber)
        {
            if (string.IsNullOrEmpty(skuNumber)) { return false;}

            int count = 0;
            foreach (char c in skuNumber)
            {
                count++;
                if (count == 7)
                {
                    string hyphen = "-";
                    if (c != hyphen[0])
                    {
                        return false;
                    }
                }
                else if (count > 9)
                {
                    return false;
                }
                else if (!char.IsNumber(c))
                {
                    return false;
                }
            }
            count = 0;
            return true;
        }

        /// <summary>
        /// Checks the datetime is not default and is utc
        /// </summary>
        /// <param name="c"></param>
        /// <returns></returns>
        public static bool DateTime(DateTime dateTime)
        {
            if (dateTime == default(DateTime))
            { return false; }
            else if (dateTime.Kind != DateTimeKind.Utc)
            { return false; }
            else
            { return true; }
        }
    }
}