using FlexJobApi.Core;
using Furion.DatabaseAccessor;
using Mapster;
using MediatR;
using Microsoft.EntityFrameworkCore;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace FlexJobApi.Application
{
    /// <summary>
    /// 获取字典数据分页列表
    /// </summary>
    public class GetDictionaryDatasQueryHandler(
            IRepository<DictionaryData> rep
        ) : IRequestHandler<GetDictionaryDatasQuery, PagedListQueryResult<GetDictionaryDatasQueryResultItem>>
    {
        private readonly IRepository<DictionaryData> rep = rep;

        public async Task<PagedListQueryResult<GetDictionaryDatasQueryResultItem>> Handle(GetDictionaryDatasQuery request, CancellationToken cancellationToken)
        {
            var q = rep.AsQueryable().AsNoTracking()
                .OrderBy(it => it.Sort).ThenByDescending(it => it.CreatedTime)
                .Where(it => it.CategoryId == request.CategoryId);
            if (request.Keywords.IsNotNull())
            {
                q = q.Where(it =>
                    it.Code.Contains(request.Keywords)
                    || it.Content.Contains(request.Keywords)
                    || it.Field1.Contains(request.Keywords)
                    || it.Field2.Contains(request.Keywords)
                    || it.Field3.Contains(request.Keywords)
                    || it.Field4.Contains(request.Keywords)
                    || it.Field5.Contains(request.Keywords));
            }
            var result = await q
                .ProjectToType<GetDictionaryDatasQueryResultItem>()
                .ToPagedListAsync(request.PageModel, cancellationToken);
            return result;
        }
    }
}