using AutoMapper;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace TProduct
{
    /// <summary>
    /// AutoMapper帮助类
    /// </summary>
    public static class AutoMapperHelper
    {
        /// <summary>
        /// 获取单个
        /// </summary>
        /// <typeparam name="In"></typeparam>
        /// <typeparam name="Out"></typeparam>
        /// <param name="obj"></param>
        /// <returns></returns>
        public static Out GetSingle<In, Out>(In obj)
        {
            var mapper = new MapperConfiguration(cfg => cfg.CreateMap<In, Out>()).CreateMapper();
            return mapper.Map<In, Out>(obj);
        }

        public static Out MapTo<In, Out>(this In obj)
        {
            return GetSingle<In, Out>(obj);
        }

        /// <summary>
        /// 映射单个实例
        /// </summary>
        /// <typeparam name="In"></typeparam>
        /// <typeparam name="Out"></typeparam>
        /// <param name="inner"></param>
        /// <param name="outer"></param>
        public static void MapSingle<In, Out>(In inner, Out outer)
        {
            var mapper = new MapperConfiguration(cfg => cfg.CreateMap<In, Out>()).CreateMapper();
            mapper.Map(inner, outer);
        }

        /// <summary>
        /// 映射多个实例
        /// </summary>
        /// <typeparam name="In"></typeparam>
        /// <typeparam name="Out"></typeparam>
        /// <param name="innerList"></param>
        /// <param name="outerList"></param>
        public static void MapMultiple<In, Out>(IEnumerable<In> innerList, IEnumerable<Out> outerList)
        {
            var mapper = new MapperConfiguration(cfg => cfg.CreateMap<In, Out>()).CreateMapper();
            mapper.Map(innerList, outerList);
        }

        public static void Map<In, Out>(this In inner, Out outer)
        {
            MapSingle(inner, outer);
        }

        public static void Map<In, Out>(this IEnumerable<In> innerList, IEnumerable<Out> outerList)
        {
            MapMultiple(innerList, outerList);
        }

        /// <summary>
        /// 获取列表
        /// </summary>
        /// <typeparam name="In"></typeparam>
        /// <typeparam name="Out"></typeparam>
        /// <param name="objs"></param>
        /// <returns></returns>
        public static List<Out> GetMultiple<In, Out>(IEnumerable<In> objs)
        {
            var mapper = new MapperConfiguration(cfg => cfg.CreateMap<In, Out>()).CreateMapper();
            return mapper.Map<IEnumerable<In>, List<Out>>(objs);
        }

        public static List<Out> MapTo<In, Out>(this IEnumerable<In> objs)
        {
            return GetMultiple<In, Out>(objs);
        }




    }
}