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>
    /// 查询菜单/页面/模态框列表
    /// </summary>
    public class MenuListQueryHandler(
        IRepository<Menu> menuRep)
        : IRequestHandler<MenuListQuery, MenuListCallback>
    {
        private readonly IRepository<Menu> menuRep = menuRep;

        /// <inheritdoc/>
        public async Task<MenuListCallback> Handle(MenuListQuery request, CancellationToken cancellationToken)
        {
            var callback = new MenuListCallback();
            var q = menuRep.AsQueryable().AsNoTracking()
                .Where(it => it.Type == EnumMenuType.Menu || it.Type == EnumMenuType.Page || it.Type == EnumMenuType.Modal);
            if (request.ParentId.HasValue)
            {
                q = q.Where(it => it.ParentId == request.ParentId);
            }
            if (!string.IsNullOrEmpty(request.Keywords))
            {
                q = q.Where(it =>
                    it.Name.Contains(request.Keywords)
                    || it.Code.Contains(request.Keywords)
                    || it.Path.Contains(request.Keywords)
                    || it.Remark.Contains(request.Keywords));
            }
            callback.Items = await q.ProjectToType<MenuListCallbackItem>().ToListAsync();
            return callback;
        }
    }
}