using Microsoft.EntityFrameworkCore;
using YD_XinWei.Api.Context;
using YD_XinWei.Api.Services.Interface;
using YD_XinWei.Api.SmartSportsEntitys;
using YD_XinWei.Commons.Dto.School;

namespace YD_XinWei.Api.Services.Impl
{
    public class StudentService : IStudentService
    {
        public SmartSportsContext _sportsContext;

        public StudentService(SmartSportsContext sportsContext)
        {
            _sportsContext = sportsContext;
        }

        public async Task<List<ClassListDto>> ClassListbyTeacher(string teacherPhoneNo)
        {
            var classList = await (
                from t in _sportsContext.Teacher
                join a in _sportsContext.ClassAssocTeacher on t.Id equals a.TeacherId
                join c in _sportsContext.Class on a.ClassId equals c.Id
                where t.TeacherPhoneNo == teacherPhoneNo
                select new ClassListDto()
                {
                    ClassId = c.Id,
                    Name = $"{c.GradeName}-{c.ClassName}"
                }).ToListAsync();

            return classList;
        }

        public async Task<List<StudentListDto>> StudentListByClassId(int classId)
        {
            var students = await _sportsContext.Student.Where(x => x.ClassId == classId).Select(x => new StudentListDto()
            {
                StudentNo = x.StudentNo,
                StudentName = x.StudentName,
                Sex = x.Sex,
                Photo = x.Photo
            }).ToListAsync();

            return students;
        }
    }
}