backend/src/main/java/nju/seec/helper/dao/UserDAO.java

package nju.seec.helper.dao;

import nju.seec.helper.entity.User;
import nju.seec.helper.util.enums.ExceptionType;
import nju.seec.helper.util.exception.HelperException;
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.stereotype.Repository;

import java.util.Optional;

/**
 * @author cst
 */
@Repository
public interface UserDAO extends JpaRepository<User, Integer> {
    /**
     * 封装findById
     *
     * @param id
     * @return
     */
    default User findUserById(Integer id) {
        return this.findById(id)
                .orElseThrow(() -> HelperException.of(ExceptionType.NOT_FOUND, "找不到用户信息"));
    }

    /**
     * 检查邮箱是否已存在
     *
     * @param email
     * @return
     */
    boolean existsByEmail(String email);


    /**
     * 检查手机号是否已存在
     *
     * @param phone
     * @return
     */
    boolean existsByPhone(String phone);

    /**
     * 邮箱密码匹配
     *
     * @param email
     * @param password
     * @return
     */
    Optional<User> findByEmailAndPassword(String email, String password);

    /**
     * 根据邮箱查询
     *
     * @param email
     * @return
     */
    Optional<User> findByEmail(String email);
}