package ru.mcs.diary.auth;

import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.core.userdetails.UsernameNotFoundException;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import ru.mcs.diary.parent.Parent;
import ru.mcs.diary.parent.ParentRepository;
import ru.mcs.diary.teacher.Teacher;
import ru.mcs.diary.teacher.TeacherRepository;

import java.util.Optional;

@Slf4j
@Service
@RequiredArgsConstructor
public class CustomUserDetailsService implements UserDetailsService {

    private final TeacherRepository teacherRepository;
    private final ParentRepository parentRepository;

    @Override
    @Transactional(readOnly = true)
    public UserDetails loadUserByUsername(String email) throws UsernameNotFoundException {
        log.debug("Attempting to load user by email: {}", email);

        // Сначала ищем среди преподавателей
        Optional<Teacher> teacher = teacherRepository.findByEmail(email);
        if (teacher.isPresent()) {
            log.debug("Found teacher: {}", email);
            return new CustomUserDetails(teacher.get());
        }

        // Затем ищем среди родителей (только активированных)
        Optional<Parent> parent = parentRepository.findByEmailAndEnabledTrue(email);
        if (parent.isPresent()) {
            log.debug("Found parent: {}", email);
            return new CustomUserDetails(parent.get());
        }

        log.warn("User not found: {}", email);
        throw new UsernameNotFoundException("Пользователь не найден: " + email);
    }
}