package com.weiwojc.controller;

import com.weiwojc.model.common.Result;
import com.weiwojc.model.dto.UserLoginDTO;
import com.weiwojc.model.dto.UserRegisterDTO;
import com.weiwojc.model.entity.User;
import com.weiwojc.service.UserService;
import com.weiwojc.utils.JwtUtils;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.validation.Valid;
import lombok.RequiredArgsConstructor;
import org.springframework.web.bind.annotation.*;

@RestController
@RequestMapping("/api/users")
@RequiredArgsConstructor
public class UserController {

    private final UserService userService;
    private final JwtUtils jwtUtils;

    @PostMapping("/register")
    public Result<User> register(@Valid @RequestBody UserRegisterDTO registerDTO) {
        User user = userService.register(registerDTO);
        return Result.success("注册成功", user);
    }

    @PostMapping("/login")
    public Result<String> login(@Valid @RequestBody UserLoginDTO loginDTO) {
        String token = userService.login(loginDTO);
        return Result.success("登录成功", token);
    }

    @GetMapping("/info")
    public Result<User> getUserInfo(HttpServletRequest request) {
        String token = request.getHeader("token");
        // 验证token是否存在
        if (token == null || token.isEmpty()) {
            return Result.unauthorized("未登录或token无效");
        }

        // 验证token是否有效
        if (!jwtUtils.validateToken(token)) {
            return Result.unauthorized("token无效或已过期");
        }

        Long userId = jwtUtils.getUserIdFromToken(token);
        User user = userService.getUserInfo(userId);
        if (user == null) {
            return Result.error("用户不存在");
        }
        
        return Result.success(user);
    }
}