<?php
// +----------------------------------------------------------------------
// | CRMEB [ CRMEB赋能开发者，助力企业发展 ]
// +----------------------------------------------------------------------
// | Copyright (c) 2016~2026 https://www.crmeb.com All rights reserved.
// +----------------------------------------------------------------------
// | Licensed CRMEB并不是自由软件，未经许可不能去掉CRMEB相关版权
// +----------------------------------------------------------------------
// | Author: CRMEB Team <admin@crmeb.com>
// +----------------------------------------------------------------------

namespace app\services\system\admin;


use app\services\BaseServices;
use crmeb\services\CacheService;
use think\exception\ValidateException;

/**
 * 密码、登录次数验证
 * Class AdminAuthServices
 * @package app\services\system\admin
 */
class LoginAuthServices extends BaseServices
{

    /**
     * 验证登录账号是否需要锁定
     * @param string $account
     * @param string $type
     * @return bool
     */
    public function checkErrorLock(string $account, string $type = 'admin')
    {
        $loginErrorNum = $this->getErrorNum($account, $type);
        if ($loginErrorNum >= (int)sys_config('system_login_error_num', 3)) {
            throw new ValidateException('您输入的错误次数较多，已被暂时锁定，请稍后再试');
        }
        return true;
    }

    /**
     * 获取登录错误次数
     * @param string $account
     * @param string $type
     * @return int
     */
    public function getErrorNum(string $account, string $type = 'admin')
    {
        $errorKey = 'system_' . $type . '_login_error_num_' . $account;
        /** @var CacheService $cacheServices */
        $cacheServices = app()->make(CacheService::class);
        return (int)$cacheServices->get($errorKey);
    }

    /**
     * 设置登录错误次数缓存
     * @param string $account
     * @param string $type
     * @return bool
     */
    public function setErrorNum(string $account, string $type = 'admin')
    {
        $errorKey = 'system_' . $type . '_login_error_num_' . $account;
        $lockTime = (int)sys_config('system_login_lock_time', 5);
        /** @var CacheService $cacheServices */
        $cacheServices = app()->make(CacheService::class);
        $loginErrorNum = $this->getErrorNum($account, $type);
        $cacheServices::set($errorKey, $loginErrorNum + 1, $lockTime);
        return true;
    }

    /**
     * 验证输入密码
     * @param string $password
     * @return bool
     */
    public function validatePassword(string $password)
    {
        $type = (int)sys_config('system_password_type', 3);
        $length = (int)sys_config('system_password_length', 3);
        if (!$this->checkPassword($password, $type, $length)) {
            throw new ValidateException($this->getMessage($type, $length));
        }
        return true;
    }

    /**
     * 验证登录密码
     * @param string $password
     * @param int $type
     * @param int $length
     * @return false|int
     */
    function checkPassword(string $password, int $type = 3, int $length = 6)
    {
        switch ($type) {
            case 1:// 纯数字
                $regex = '/^\d{' . $length . ',}$/';
                break;
            case 2:// 纯字母
                $regex = '/^[A-Za-z]{' . $length . ',}$/';
                break;
            case 3:// 数字 + 纯字母
                $regex = '/^(?=.*[A-Za-z])(?=.*\d)[A-Za-z\d]{' . $length . ',}$/';
                break;
            case 4:// 数字 + 纯字母 + 特殊符号
                // 使用 [\W_] 匹配所有特殊字符和下划线
                $regex = '/^(?=.*[A-Za-z])(?=.*\d)(?=.*[\W_])[A-Za-z\d\W_]{' . $length . ',}$/';
                break;
            default:
                $regex = '/^(?=.*[A-Za-z])(?=.*\d)[A-Za-z\d]{' . $length . ',}$/';
                break;
        }
        return preg_match($regex, $password);
    }


    /**
     * 获取验证密码提示语
     * @param int $type
     * @param int $length
     * @return string
     */
    public function getMessage(int $type = 3, int $length = 6)
    {
        switch ($type) {
            case 1://纯数字
                $desc = '纯数字';
                break;
            case 2://纯字母
                $desc = '纯字母';
                break;
            case 3://数字+纯字母
                $desc = '数字+纯字母';
                break;
            case 4://数字+纯字母+特殊符号
                $desc = '数字+纯字母+特殊符号';
                break;
            default:
                $desc = '数字+纯字母';
                break;
        }
        return '密码必须由：' . $desc . '组成,最小' . $length . '位';
    }


}