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>
    /// 任务查询处理器
    /// </summary>
    public class TaskInfoQueryHandler(
            IRepository<TaskInfo> rep
        )
        : IRequestHandler<GetTaskInfoQuery, GetTaskInfoQueryResult>
    {
        private readonly IRepository<TaskInfo> rep = rep;

        /// <summary>
        /// 查询任务详情
        /// </summary>
        /// <param name="request"></param>
        /// <param name="cancellationToken"></param>
        /// <returns></returns>
        public Task<GetTaskInfoQueryResult> Handle(GetTaskInfoQuery request, CancellationToken cancellationToken)
        {
            return TaskInfoQueryable.GetQueryable(rep, q => q.Where(it => it.Id == request.Id))
                .ProjectToType<GetTaskInfoQueryResult>()
                .FirstOrDefaultAsync(cancellationToken);
        }
    }
}