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

namespace Work.Business.ProductMappingBLL
{
    public class MappingTaoBaoBLL
    {
        /// <summary>
        /// 
        /// </summary>
        /// <param name="prodList"></param>
        /// <param name="minPrice"></param>
        /// <param name="maxPrice"></param>
        /// <param name="isGetTitle">如果是标题搜索，则放宽限制</param>
        /// <returns></returns>
        public static List<Tuple<string, int, int,string>> FilterItems(List<Tuple<string, int, int,string>> prodList, int minPrice, int maxPrice = 0, bool isGetTitle = false, decimal multiple = 20M)
        {
            if (prodList == null || prodList.Count == 0)
                return new List<Tuple<string, int, int,string>>();

            var result = prodList.Where(p => !string.IsNullOrEmpty(p.Item1) && p.Item2 >= minPrice && p.Item3 >= maxPrice && p.Item3 < (maxPrice * 3.5M + 3000)).ToList();
            var resultx = result.Where(r => r.Item2 != r.Item3).ToList();
            if (resultx.Count > 0)
                return resultx;
            if (result.Count > 0)
                return result;

            if (isGetTitle)
            {
                result = prodList.Where(p => !string.IsNullOrEmpty(p.Item1) && p.Item2 >= minPrice && p.Item3 < (maxPrice * multiple + 3000)).ToList();
            }
            return result;
        }
    }
}