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.User.Application
{
    /// <summary>
    /// 查询所有菜单
    /// </summary>
    public class MenuAllQueryHandler : IRequestHandler<MenuAllQuery, MenuAllCallback>
    {
        private readonly IRepository<Menu> menuRep;

        public MenuAllQueryHandler(
            IRepository<Menu> menuRep)
        {
            this.menuRep = menuRep;
        }

        public async Task<MenuAllCallback> Handle(MenuAllQuery request, CancellationToken cancellationToken)
        {
            var callback = new MenuAllCallback();
            callback.Items = await menuRep.AsQueryable()
              .Include(it => it.Childrens.Where(c =>
                    c.Type == EnumMenuType.Menu
                    || c.Type == EnumMenuType.Page
                    || c.Type == EnumMenuType.Modal))
              .OrderBy(it => it.Sort).ThenBy(it => it.CreatedTime)
              .Where(it =>
                    it.Type == EnumMenuType.Menu
                    || it.Type == EnumMenuType.Page
                    || it.Type == EnumMenuType.Modal)
              .ProjectToType<MenuAllCallbackItem>()
              .ToListAsync(cancellationToken);
            return callback;
        }
    }
}