content: package com.sky.service.impl;
  
  import com.github.pagehelper.Page;
  import com.github.pagehelper.PageHelper;
  import com.sky.constant.MessageConstant;
  import com.sky.constant.PasswordConstant;
  import com.sky.constant.StatusConstant;
  import com.sky.context.BaseContext;
  import com.sky.dto.EmployeeDTO;
  import com.sky.dto.EmployeeLoginDTO;
  import com.sky.dto.EmployeePageQueryDTO;
  import com.sky.entity.Employee;
  import com.sky.exception.AccountLockedException;
  import com.sky.exception.AccountNotFoundException;
  import com.sky.exception.PasswordErrorException;
  import com.sky.mapper.EmployeeMapper;
  import com.sky.result.PageResult;
  import com.sky.service.EmployeeService;
  import org.springframework.beans.BeanUtils;
  import org.springframework.beans.factory.annotation.Autowired;
  import org.springframework.stereotype.Service;
  import org.springframework.util.DigestUtils;
  
  import java.time.LocalDateTime;
  import java.util.List;
  
  @Service
  public class EmployeeServiceImpl implements EmployeeService {
  
      @Autowired
      private EmployeeMapper employeeMapper;
  
      /**
       * 员工登录
       * @param employeeLoginDTO
       * @return
       */
      public Employee login(EmployeeLoginDTO employeeLoginDTO) {
          String username = employeeLoginDTO.getUsername();
          String password = employeeLoginDTO.getPassword();
  
          //1、根据用户名查询数据库中的数据
          Employee employee = employeeMapper.getByUsername(username);
  
          //2、处理各种异常情况（用户名不存在、密码不对、账号被锁定）
          if (employee == null) {
              //账号不存在
              throw new AccountNotFoundException(MessageConstant.ACCOUNT_NOT_FOUND);
          }
  
          //密码比对
          //明文密码md5加密
          password=DigestUtils.md5DigestAsHex(password.getBytes());
          if (!password.equals(employee.getPassword())) {
              //密码错误
              throw new PasswordErrorException(MessageConstant.PASSWORD_ERROR);
          }
  
          if (employee.getStatus() == StatusConstant.DISABLE) {
              //账号被锁定
              throw new AccountLockedException(MessageConstant.ACCOUNT_LOCKED);
          }
  
          //3、返回实体对象
          return employee;
      }
  
      /**
       * 新增员工
       * @param employeeDTO
       */
      public void save(EmployeeDTO employeeDTO) {
          Employee employee=new Employee();
          //对象属性拷贝
          BeanUtils.copyProperties(employeeDTO,employee);
  
          //设置其他属性
          employee.setStatus(StatusConstant.ENABLE);//状态
          employee.setPassword(DigestUtils.md5DigestAsHex(PasswordConstant.DEFAULT_PASSWORD.getBytes()));//密码
  
  
          employeeMapper.insert(employee);
  
      }
  
      /**
       * 员工分页查询
       * @param employeePageQueryDTO
       * @return
       */
      public PageResult pageQuery(EmployeePageQueryDTO employeePageQueryDTO) {
          // limit 0,10
          //分页查询
          PageHelper.startPage(employeePageQueryDTO.getPage(),employeePageQueryDTO.getPageSize());
  
          // TODO 安装mybatisx
          Page<Employee> page=employeeMapper.pageQuery(employeePageQueryDTO);
          long total = page.getTotal();
          List<Employee> records = page.getResult();
  
          return new PageResult(total, records);
      }
  
      /**
       * 启用禁用员工操作
       * @param status
       * @param id
       */
      public void startOrStop(Integer status, Long id) {
          // update status
          Employee employee=Employee.builder().status(status).id(id).build();
  
          employeeMapper.update(employee);
      }
  
      /**
       * 根据id查询员工
       * @param id
       * @return
       */
      public Employee getById(Long id) {
          Employee employee=employeeMapper.getById(id);
          employee.setPassword("****");
          return employee;
      }
  
      /**
       * 编辑员工信息
       * @param employeeDTO
       */
      public void update(EmployeeDTO employeeDTO) {
          Employee employee=new Employee();
          BeanUtils.copyProperties(employeeDTO,employee);//因为update接收的是Employee类型，先进行转换
  
  
  
          employeeMapper.update(employee);
      }
  
  }
  