<?php
namespace common\components\sensitivewords;
use addons\Material\common\enums\MaterialEnum;
use common\components\sensitivewords\BaiduCache;
use common\enums\SettingEnum;
use common\models\common\MallSetting;

/**
 * Class Common
 * @package app\plugins\material\forms\common
 */
class SensitiveWords
{
    public $config;
    public static $instance;
    const BAIDUTAXT = 'baidutaxt';

    /**
     * @param $text
     * @return array
     */
    public function getTextStatus($text,$mall_id){
        if(empty($text)){
            return ['status' => 0,'msg' => '文本不许为空'];
        }
        $config = MallSetting::getConfByGroup($mall_id, 'sensitive', true);
        $token = $this->getToken($config['api_key']['value'], $config['secret_key']['value']);
        if ($token['status'] == 1)return ['status'=>1,'msg' => '密钥验证失败，请检查配置'];
        return $this->checkText($text,$token['token']);
    }

    public function checkText($text,$token){
        $url = 'https://aip.baidubce.com/rest/2.0/solution/v1/text_censor/v2/user_defined?access_token='.$token;
        $post_data['text']       = $text;
        $res = $this->post_data($url,$post_data);
        if(isset($res["conclusionType"])){
            if ($res['conclusionType'] == 2){
                if($res['data'][0]['hits'][0]['words']){
                    $sensitivearray = implode(',',$res['data'][0]['hits'][0]['words']);
                } else {
                    $sensitivearray = '';
                }
                return [
                    'status'=>1,
                    'msg' => $res['data'][0]['msg'].",违规词：".$sensitivearray,
                ];
            }else{
                if ($res['conclusionType'] != 1) \Yii::warning('百度文本检测存在其他报错，报错内容：'.json_encode($res));
                return ['status' => 0];
            }
        }else{
            return ['status' => 0];
        }
    }


    public function getToken($clientId,$clientSecret)
    {
        $cache = new BaiduCache();
        $token = $cache->getCache(self::BAIDUTAXT);
        if (empty($token)) {
            $url = 'https://aip.baidubce.com/oauth/2.0/token';
            $post_data['grant_type'] = 'client_credentials';
            $post_data['client_id'] = $clientId;
            $post_data['client_secret'] = $clientSecret;
            $o = "";
            foreach ($post_data as $k => $v) {
                $o .= "$k=" . urlencode($v) . "&";
            }
            $post_data = substr($o, 0, -1);


            $res = $this->request_post($url, $post_data);

            $res = json_decode($res);
            $res = (array)$res;
            if (!isset($res['access_token'])){
                \Yii::warning('百度文本检测获取token其他报错，报错内容：'.json_encode($res));
                return ['status'=>1];
            }

            $token = $res['access_token'];
            //百度token保存一个月，所以缓存27天更新
            $cache->addCache(self::BAIDUTAXT,$token,2332800);
        }

        return ['status'=>0,'token'=> $cache->getCache(self::BAIDUTAXT)];
    }

    function request_post($url = '', $param = '') {
        if (empty($url) || empty($param)) {
            return false;
        }

        $postUrl = $url;
        $curlPost = $param;
        $curl = curl_init();//初始化curl
        curl_setopt($curl, CURLOPT_URL,$postUrl);//抓取指定网页
        curl_setopt($curl, CURLOPT_HEADER, 0);//设置header
        curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);//要求结果为字符串且输出到屏幕上
        curl_setopt($curl, CURLOPT_POST, 1);//post提交方式
        curl_setopt($curl, CURLOPT_POSTFIELDS, $curlPost);

        $data = curl_exec($curl);//运行curl
        curl_close($curl);
        return $data;
    }


    function post_data($url, $param, $return_array = true)
    {
        set_time_limit(0);
        $header [] = "content-type: application/x-www-form-urlencoded";
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST");
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
        curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE);
        curl_setopt($ch, CURLOPT_HTTPHEADER, $header);
        curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/4.0 (compatible; MSIE 5.01; Windows NT 5.0)');
        curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
        curl_setopt($ch, CURLOPT_AUTOREFERER, 1);
        curl_setopt($ch, CURLOPT_POSTFIELDS, $param);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        $res = curl_exec($ch);
        $flat = curl_errno($ch);
        if ($flat) {
            $data = curl_error($ch);
        }

        curl_close($ch);
        $return_array && $res = json_decode($res, true);
        return $res;
    }


}