package nju.seec.helper.controller;

import nju.seec.helper.aspect.auth.Auth;
import nju.seec.helper.controller.response.EmptyResponse;
import nju.seec.helper.controller.response.ResourceResponse;
import nju.seec.helper.dto.LoginDTO;
import nju.seec.helper.dto.LoginUser;
import nju.seec.helper.dto.RegisterDTO;
import nju.seec.helper.service.UserService;
import nju.seec.helper.util.Consts;
import nju.seec.helper.util.enums.UserType;
import nju.seec.helper.vo.UserVO;
import org.springframework.web.bind.annotation.*;

import javax.servlet.http.HttpSession;
import javax.validation.Valid;

/**
 * 用户
 *
 * @author cst
 */
@RestController
@RequestMapping("/api/user")
public class UserController {
    private final UserService userService;

    public UserController(UserService userService) {
        this.userService = userService;
    }

    /**
     * 注册
     */
    @PostMapping("/register")
    public ResourceResponse<UserVO> register(@Valid @RequestBody RegisterDTO registerDTO) {
        UserVO userVO = userService.createUser(registerDTO);
        return ResourceResponse.of(userVO);
    }

    /**
     * 邮箱登录
     */
    @PostMapping("/login/email")
    public ResourceResponse<UserVO> emailLogin(@Valid @RequestBody LoginDTO loginDTO,
                                               HttpSession session) {
        UserVO userVO = userService.getUserByEmailAndPassword(loginDTO.getUsername(), loginDTO.getPassword());
        LoginUser user = new LoginUser();
        user.setId(userVO.getId());
        user.setName(userVO.getName());
        user.setType(userVO.getType());

        session.setAttribute(Consts.SESSION_USER_NAME, user);
        // 20分钟有效期
        session.setMaxInactiveInterval(1200);
        return ResourceResponse.of(userVO);
    }

    /**
     * 登出
     */
    @Auth(roles = {UserType.TEACHER, UserType.STUDENT}, message = "登出")
    @PostMapping("/logout")
    public EmptyResponse logout(HttpSession session) {
        session.removeAttribute(Consts.SESSION_USER_NAME);
        return EmptyResponse.getInstance();
    }

    /**
     * 获取自身用户信息
     */
    @Auth(roles = {UserType.TEACHER, UserType.STUDENT}, message = "获取自身用户信息")
    @GetMapping
    public ResourceResponse<UserVO> getUserInfo(LoginUser user) {
        UserVO userVO = userService.getUserById(user.getId());
        return ResourceResponse.of(userVO);
    }
}