<?php
declare(strict_types=1);

namespace app\api\controller;

use app\api\common\Jwt;
use app\api\common\Response;
use app\api\controller\BaseController;
use app\api\service\AuthService;
use think\exception\ValidateException;

/**
 * 认证控制器 (v1版本)
 * 处理用户登录、注册、Token 刷新等
 */
class Auth extends BaseController
{
    /**
     * @var AuthService
     */
    protected AuthService $authService;

    public function __construct()
    {
        parent::__construct();
        $this->authService = new AuthService();
    }

    /**
     * 用户登录
     * POST /api/v1/auth/login
     * @return \think\response\Json
     */
    public function login()
    {
        try {
            $data = $this->request->post();

            // 验证参数
            validate($data, [
                'username' => 'require',
                'password' => 'require',
            ], [
                'username.require' => '用户名不能为空',
                'password.require' => '密码不能为空',
            ]);

            $result = $this->authService->login(
                $data['username'],
                $data['password']
            );

            return Response::success($result, '登录成功');
        } catch (ValidateException $e) {
            return Response::error($e->getMessage(), 400);
        } catch (\Exception $e) {
            return Response::error($e->getMessage(), $e->getCode() ?: 500);
        }
    }

    /**
     * 用户注册
     * POST /api/v1/auth/register
     * @return \think\response\Json
     */
    public function register()
    {
        try {
            $data = $this->request->post();

            // 验证参数
            validate($data, [
                'username' => 'require|length:3,20|alphaNum',
                'password' => 'require|length:6,20',
                'email' => 'email',
            ], [
                'username.require' => '用户名不能为空',
                'username.length' => '用户名长度3-20位',
                'username.alphaNum' => '用户名只能包含字母和数字',
                'password.require' => '密码不能为空',
                'password.length' => '密码长度6-20位',
                'email.email' => '邮箱格式不正确',
            ]);

            $result = $this->authService->register(
                $data['username'],
                $data['password'],
                $data['email'] ?? null,
                $data['formtypeid'] ?? null
            );

            return Response::success($result, '注册成功');
        } catch (ValidateException $e) {
            return Response::error($e->getMessage(), 400);
        } catch (\Exception $e) {
            return Response::error($e->getMessage(), $e->getCode() ?: 500);
        }
    }

    /**
     * 刷新 Token
     * POST /api/v1/auth/refresh
     * @return \think\response\Json
     */
    public function refresh()
    {
        try {
            $data = $this->request->post();

            if (empty($data['refresh_token'])) {
                return Response::error('刷新令牌不能为空', 400);
            }

            $result = $this->authService->refreshToken($data['refresh_token']);

            return Response::success($result, '刷新成功');
        } catch (\Exception $e) {
            return Response::error($e->getMessage(), $e->getCode() ?: 500);
        }
    }

    /**
     * 获取当前用户信息
     * GET /api/v1/auth/me
     * @return \think\response\Json
     */
    public function me()
    {
        try {
            $payload = $this->request->payload ?? null;
            if (!$payload) {
                return Response::error('未登录', 401);
            }

            $result = $this->authService->getUserInfo($payload['userid']);

            return Response::success($result);
        } catch (\Exception $e) {
            return Response::error($e->getMessage(), $e->getCode() ?: 500);
        }
    }

    /**
     * 退出登录
     * POST /api/v1/auth/logout
     * @return \think\response\Json
     */
    public function logout()
    {
        // JWT 无状态，退出只需客户端删除 Token
        // 如果需要服务端失效，可以将 Token 加入黑名单（需要 Redis 支持）
        return Response::success([], '退出成功');
    }

    /**
     * 修改密码
     * POST /api/v1/auth/password
     * @return \think\response\Json
     */
    public function password()
    {
        try {
            $payload = $this->request->payload ?? null;
            if (!$payload) {
                return Response::error('未登录', 401);
            }

            $data = $this->request->post();

            validate($data, [
                'old_password' => 'require',
                'new_password' => 'require|length:6,20|confirm:confirm_password',
            ], [
                'old_password.require' => '原密码不能为空',
                'new_password.require' => '新密码不能为空',
                'new_password.length' => '新密码长度6-20位',
                'new_password.confirm' => '两次密码输入不一致',
            ]);

            $this->authService->changePassword(
                $payload['userid'],
                $data['old_password'],
                $data['new_password']
            );

            return Response::success([], '密码修改成功');
        } catch (ValidateException $e) {
            return Response::error($e->getMessage(), 400);
        } catch (\Exception $e) {
            return Response::error($e->getMessage(), $e->getCode() ?: 500);
        }
    }
}