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.Application
{
    /// <summary>
    /// 任务查询处理器
    /// </summary>
    public class TaskInfoQueryHandler(
            IRepository<TaskInfo> rep
        ) :
        IRequestHandler<GetTaskInfoQuery, GetTaskInfoQueryResult>,
        IRequestHandler<GetTaskInfosQuery, PagedListQueryResult<GetTaskInfosQueryResultItem>>

    {
        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 TaskInfoRepository.GetQueryable(rep)
                .Where(it => it.Id == request.Id)
                .ProjectToType<GetTaskInfoQueryResult>()
                .FirstOrDefaultAsync(cancellationToken);
        }

        /// <summary>
        /// 查询任务分页列表
        /// </summary>
        /// <param name="request"></param>
        /// <param name="cancellationToken"></param>
        /// <returns></returns>
        public Task<PagedListQueryResult<GetTaskInfosQueryResultItem>> Handle(GetTaskInfosQuery request, CancellationToken cancellationToken)
        {
            return request.PageModel.GetPagedListAsync<TaskInfo, GetTaskInfosQueryResultItem>(
                q =>
                {
                    q = TaskInfoRepository.GetQueryable(rep);
                    return q;
                });
        }
    }
}