using AutoMapper;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using WMS.Web.Core;

namespace WMS.Web.Domain.Mappers
{
    /// <summary>
    /// 集合映射
    /// </summary>
    public static class MapperList
    {
        /// <summary>
        /// 映射实体里 集合属性
        /// </summary>
        /// <typeparam name="ST"></typeparam>
        /// <typeparam name="DT"></typeparam>
        /// <param name="mapper"></param>
        /// <param name="sourcList"></param>
        /// <param name="destinationList"></param>
        /// <returns></returns>
        public static List<DT> ToMapList<DT, ST>(this IMapper mapper, List<ST> sourcList, List<DT> destinationList)
            where ST : EntityBase
             where DT : EntityBase
        {
            for (int i = 0; i < destinationList.Count; i++)
            {
                int id = destinationList[i].Id;
                var detail = sourcList.FirstOrDefault(f => f.Id == id);
                if (detail == null)
                {
                    destinationList.Remove(destinationList[i]);
                    i--;//在列表移除掉一条数据后 必须把index回拨一位 因为数据在移除一条后会调整下标
                }
            }

            foreach (var st in sourcList)
            {
                if (st.Id == 0)
                    destinationList.Add(mapper.Map<DT>(st));
                else
                {
                    var detail = destinationList.FirstOrDefault(f => f.Id == st.Id);

                    if (detail != null)
                        mapper.Map(st, detail);
                    //如果在目标数据里没找到这条id的数据 则不作处理
                }
            }

            return destinationList;
        }
    }
}