using FlexJobApi.Core;
using Furion.DatabaseAccessor;
using Furion.FriendlyException;
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.UserServer.Application
{
    /// <summary>
    /// 获取角色详情
    /// </summary>
    public class GetRoleQueryHandler(
            IRepository<Role> rep
        ) : IRequestHandler<GetRoleQuery, GetRoleQueryResult>
    {
        private readonly IRepository<Role> rep = rep;

        /// <inheritdoc/>
        public async Task<GetRoleQueryResult> Handle(GetRoleQuery request, CancellationToken cancellationToken)
        {
            var entity = await rep.AsQueryable().AsNoTracking()
                .Where(it => it.Id == request.Id)
                .ProjectToType<GetRoleQueryResult>()
                .FirstOrDefaultAsync(cancellationToken);

            if (entity == null) throw Oops.Oh(EnumErrorCodeType.s404, "该角色");

            entity.MenuIds = await rep.Change<RoleMenu>().AsQueryable().AsNoTracking()
                .Where(it => it.RoleId == request.Id)
                .Select(it => it.MenuId)
                .ToListAsync(cancellationToken);

            entity.Resources = await rep.Change<RoleResource>().AsQueryable().AsNoTracking()
                .Where(it => it.RoleId == request.Id)
                .ProjectToType<GetRoleQueryResultResource>()
                .ToListAsync(cancellationToken);

            return entity;
        }
    }
}