<?php
declare (strict_types = 1);

namespace app\controller;

use app\BaseController;
use app\service\UserService;
use think\facade\Session;
use think\facade\View;

/**
 * 认证控制器
 */
class Auth extends BaseController
{
    /**
     * 显示登录页面
     */
    public function login()
    {
        // 如果已登录，跳转到爬虫页面
        if (Session::has('username')) {
            return redirect('/crawler');
        }
        return View::fetch();
    }
    
    /**
     * 处理登录
     */
    public function doLogin()
    {
        $username = $this->request->param('username', '');
        $password = $this->request->param('password', '');
        
        if (empty($username) || empty($password)) {
            return json([
                'code' => 0,
                'msg' => '请输入用户名和密码',
            ]);
        }
        
        $service = new UserService();
        $user = $service->verifyLogin($username, $password);
        
        if ($user === false) {
            return json([
                'code' => 0,
                'msg' => '用户名或密码错误',
            ]);
        }
        
        // 保存登录信息到Session
        Session::set('username', $user['username']);
        Session::set('is_admin', $user['is_admin']);
        
        return json([
            'code' => 1,
            'msg' => '登录成功',
            'data' => [
                'is_admin' => $user['is_admin'],
            ],
        ]);
    }
    
    /**
     * 退出登录
     */
    public function logout()
    {
        Session::clear();
        return redirect('/login');
    }
}