using Store.Product.Models.Product.Sku;
using System.Collections.Generic;
using System.Linq;

namespace Store.Product.Models.PublishParameters.Price
{
    /// <summary>
    /// 区间价格配置
    /// </summary>
    public class SectionPrice : PriceConfigBase
    {
        public override PriceStrategyType PriceType => PriceStrategyType.分段价格;

        /// <summary>
        /// 区间列表
        /// </summary>
        public List<SectionItemPrice> SectionList { get; set; } = new List<SectionItemPrice>();

        /// <summary>
        /// 计算价格
        /// </summary>
        /// <param name="oldPrice"></param>
        /// <returns></returns>
        public override decimal ComputedPrice(decimal oldPrice)
        {
            var newPrice = oldPrice;
            if (SectionList != null && SectionList.Count > 0)
            {
                foreach (var item in SectionList)
                {
                    if (item.BeginPrice < newPrice && newPrice < item.EndPrice)
                    {
                        newPrice = item.ComputedPrice(newPrice);
                    }
                }
                if (newPrice == oldPrice)
                {
                    newPrice = SectionList.Last().ComputedPrice(newPrice);
                }
            }
            return newPrice;
        }

        public override SkuMaps ComputedPrice(SkuMaps skuMaps)
        {
            foreach (var item in skuMaps)
            {
                item.Price = ComputedPrice(item.Price);
            }
            return skuMaps;
        }



        /// <summary>
        /// 指定区间价格
        /// </summary>
        public class SectionItemPrice : MultiplesPrice
        {
            /// <summary>
            /// 开始价格
            /// </summary>
            public decimal BeginPrice { get; set; } = 0;
            /// <summary>
            /// 结束价格
            /// </summary>
            public decimal EndPrice { get; set; } = 10000000;
        }
    }


}