using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using AutoMapper;
using DTO;
using IServices;
using Microsoft.AspNetCore.Mvc.Rendering;
using Microsoft.EntityFrameworkCore;
using zhengcaioa.Models;

namespace Services
{
    public class DtChannelArticleNewsService: IDtChannelArticleNewsService
    {
        private readonly zcwebContext _context;
        private readonly IMapper _mapper;
        public DtChannelArticleNewsService(zcwebContext context, IMapper mapper)
        {
            _context = context;
            _mapper = mapper;
        }


        public List<DtChannelArticleNewsDTO> GetList(DtChannelArticleNewsDTOSearch searchEntity)
        {

            var entity = (from a in _context.DtChannelArticleNews.Where(x => x.Status == 0)
                          join b in _context.DtArticleCategories on a.CategoryId equals b.Id


                          where a.Status == 0
                              && (string.IsNullOrWhiteSpace(searchEntity.UserName) || a.UserName == searchEntity.UserName.Trim())
                                 && ( !searchEntity.AddTime.HasValue || a.AddTime >= searchEntity.AddTime.Value.Date )
                                  && (!searchEntity.EndTime.HasValue || a.AddTime < searchEntity.EndTime.Value.Date )
                                 
                                  && (searchEntity.CategoryId <= 0 || b.ParentId == searchEntity.CategoryId )
                          select a
                          ).ToList();
 

            var result = _mapper.Map<List<DtChannelArticleNewsDTO>>(entity);


            return result;
        }
    }
}