using Microsoft.AspNetCore.Mvc;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Security.Cryptography;
using System.Text;
using System.Threading.Tasks;
using Volo.Abp.Application.Services;
using Volo.Abp.Domain.Repositories;
using Volo.Abp.ObjectMapping;

namespace Shentun.Peis.Books
{
    [ApiExplorerSettings(GroupName = "Sys")]
    public class StudentAppService : ApplicationService, IStudentAppService
    {
        private readonly IRepository<Student> _repository;

        public StudentAppService(IRepository<Student> repository)
        {
            _repository = repository;
        }

        public async Task<StudentDto> CreateAsync(CreateStudentDto input)
        {
            var studentinfo = await _repository.InsertAsync(new Student(input.Sid, input.Uid, input.Cid, input.Name));
            return ObjectMapper.Map<Student, StudentDto>(studentinfo);
        }

        public async Task DeleteAsync(Guid Sid, Guid Uid, string Cid)
        {

            var studentinfo = (await _repository.GetQueryableAsync())
                .Where(x => x.Sid == Sid)
                .Where(x => x.Uid == Uid)
                .Where(x => x.Cid == Cid).FirstOrDefault();

            await _repository.DeleteAsync(studentinfo);  //软删除

            //await _repository.HardDeleteAsync(studentinfo); //物理删除
        }

        public async Task<List<StudentDto>> GetAsync(StudentDto studentDto)
        {

            var studentlist = (await _repository.GetQueryableAsync())
                .Where(x => x.Sid == studentDto.Sid)
                .Where(x => x.Uid == studentDto.Uid)
                .Where(x => x.Cid == studentDto.Cid).ToList();


            return ObjectMapper.Map<List<Student>, List<StudentDto>>(studentlist);

            //    List<LandInfo> landInfos = (await _landInfoRepository.GetQueryableAsync())
            //.WhereIf(!string.IsNullOrEmpty(input.Name), x => x.landName.Contains(input.Name) || x.landName == input.Name)
            //.WhereIf(!string.IsNullOrEmpty(input.Description), x => x.remark.Contains(input.Description) || x.remark == input.Description)
            //.Skip((input.pageNo - 1) * input.pageSize)
            //.Take(input.pageSize)
            //.ToList();


        }

        public async Task<StudentDto> GetAsyncMyName(string Name)
        {
            var studentinfo = (await _repository.GetQueryableAsync())
                .WhereIf(!string.IsNullOrEmpty(Name), x => x.Name == Name).FirstOrDefault();

            return ObjectMapper.Map<Student, StudentDto>(studentinfo);
        }


    }
}