package ru.tubryansk.tdms.service;

import jakarta.transaction.Transactional;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import ru.tubryansk.tdms.controller.payload.StudentDTO;
import ru.tubryansk.tdms.entity.Student;
import ru.tubryansk.tdms.entity.repository.StudentRepository;

import java.util.Optional;

@Service
@Transactional
public class StudentService {
    @Autowired
    private StudentRepository studentRepository;
    @Autowired
    private CallerService callerService;

    public Optional<Student> getCallerStudent() {
        return studentRepository.findByUser(callerService.getCallerUser().orElse(null));
    }

    public StudentDTO getCallerStudentDTO() {
        Student callerStudent = getCallerStudent().orElse(null);
        if (callerStudent == null) {
            return null;
        }

        return StudentDTO.from(callerStudent);
    }
}