using FlexJobApi.Core;
using Furion.DatabaseAccessor;
using Furion.FriendlyException;
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>
    /// 查询用户角色列表
    /// </summary>
    public class GetUserInfoRolesQueryHandler(
            IRepository<Role> repRole,
            IRepository<User> repUser,
            IRepository<UserRole> repUserRole
        ) : IRequestHandler<GetUserInfoRolesQuery, List<GetUserInfoRolesQueryResultItem>>
    {
        private readonly IRepository<Role> repRole = repRole;
        private readonly IRepository<User> repUser = repUser;
        private readonly IRepository<UserRole> repUserRole = repUserRole;

        /// <inheritdoc/>
        public async Task<List<GetUserInfoRolesQueryResultItem>> Handle(GetUserInfoRolesQuery request, CancellationToken cancellationToken)
        {
            var userInfo = await repUser.AsQueryable().AsNoTracking()
                .Where(it => it.Id == request.UserInfoId)
                .Select(it => new
                {
                    it.Type,
                })
                .FirstOrDefaultAsync(cancellationToken);
            if (userInfo == null) throw Oops.Oh(EnumErrorCodeType.s404, "该用户信息");
            var roleIds = await repUserRole.AsQueryable().AsNoTracking()
                .Where(it => it.UserId == request.UserInfoId)
                .Select(it => it.RoleId)
                .ToListAsync(cancellationToken);
            var roles = await repRole.AsQueryable().AsNoTracking()
                .Where(it => it.UserType == userInfo.Type && it.ClientType == request.ClientType)
                .Select(it => new GetUserInfoRolesQueryResultItem
                {
                    Id = it.Id,
                    Name = it.Name,
                    Remark = it.Remark,
                })
                .ToListAsync(cancellationToken);
            foreach (var role in roles)
            {
                role.IsChecked = roleIds.Contains(role.Id);
            }
            return roles;
        }
    }
}