<?php

namespace App\Service\Wx;

use Illuminate\Support\Facades\DB;
use Illuminate\Support\Facades\Redis;
use Illuminate\Support\Facades\Storage;


/**
 * 公用的公共服务
 * @package App\Models
 */
class Service
{

    public $log;
    public $total = 0;

    public function __construct()
    {

    }


    function curlOpen($url, $config = array())
    {
        $arr = array('post' => false,'referer' => $url,'cookie' => '', 'useragent' => 'Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.0; Trident/4.0; SLCC1; .NET CLR 2.0.50727; .NET CLR 3.0.04506; customie8)', 'timeout' => 100, 'return' => true, 'proxy' => '', 'userpwd' => '', 'nobody' => false,'header'=>array(),'gzip'=>true,'ssl'=>true,'isupfile'=>false,'returnheader'=>false,'request'=>'post');
        $arr = array_merge($arr, $config);
        $ch = curl_init();

        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, $arr['return']);
        curl_setopt($ch, CURLOPT_NOBODY, $arr['nobody']);
        curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
        curl_setopt($ch, CURLOPT_USERAGENT, $arr['useragent']);
        curl_setopt($ch, CURLOPT_REFERER, $arr['referer']);
        curl_setopt($ch, CURLOPT_TIMEOUT, $arr['timeout']);


        curl_setopt($ch, CURLOPT_HEADER, $arr['returnheader']);//��ȡheader
        if($arr['gzip']) curl_setopt($ch, CURLOPT_ENCODING, 'gzip,deflate');
        if($arr['ssl'])
        {
            curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
            curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
        }
        if(!empty($arr['cookie']))
        {
            curl_setopt($ch, CURLOPT_COOKIEJAR, $arr['cookie']);
            curl_setopt($ch, CURLOPT_COOKIEFILE, $arr['cookie']);
        }

        if(!empty($arr['proxy']))
        {
            //curl_setopt($ch, CURLOPT_PROXYTYPE, CURLPROXY_HTTP);
            curl_setopt ($ch, CURLOPT_PROXY, $arr['proxy']);
            if(!empty($arr['userpwd']))
            {
                curl_setopt($ch,CURLOPT_PROXYUSERPWD,$arr['userpwd']);
            }
        }

        //ip�Ƚ����⣬�ü�ֵ��ʾ
        if(!empty($arr['header']['ip']))
        {
            array_push($arr['header'],'X-FORWARDED-FOR:'.$arr['header']['ip'],'CLIENT-IP:'.$arr['header']['ip']);
            unset($arr['header']['ip']);
        }
        $arr['header'] = array_filter($arr['header']);

        if(!empty($arr['header']))
        {
            curl_setopt($ch, CURLOPT_HTTPHEADER, $arr['header']);
        }

        if($arr['request'] === 'put'){
            curl_setopt ($ch, CURLOPT_CUSTOMREQUEST, "PUT");
            curl_setopt($ch, CURLOPT_POSTFIELDS,$arr['post']);
        }elseif($arr['post'] != false)
        {
            curl_setopt($ch, CURLOPT_POST, true);
            if(is_array($arr['post']) && $arr['isupfile'] === false)
            {
                $post = http_build_query($arr['post']);
            }
            else
            {
                $post = $arr['post'];
            }
            curl_setopt($ch, CURLOPT_POSTFIELDS, $post);
        }

        $result = curl_exec($ch);
        curl_close($ch);

        return $result;
    }

    //分页共用
    public function limit($db, $columns, $request)
    {
        $per_page = $request['page_size'] ?? 9999;
        $page = $request['page_index'] ?? 1;
        $return = $db->paginate($per_page, $columns, 'page', $page)->toArray();

        $data['total'] = $return['total'];
        $data['data'] = $return['data'];
        return $data;
    }

    //判断是否为空
    protected function isEmpty($data, $word)
    {
        if (isset($data[$word]) && (!empty($data[$word]) || $data[$word] === '0'|| $data[$word] === 0)) return false;
        return true;
    }

    //后台端 某些需要限制请求频率的接口
    public function limitingSendRequestBackg($key,$ttl = 5){
        if($ttl < 5) $ttl = 5;

        // 使用Redis Facade设置，当键名不存在时才设置成功
        if (Redis::setnx($key, 1)) {
            Redis::expire($key, $ttl); //多少秒后过期

            return [true, ''];
        }

        return [false,'操作频繁, 请在 ' . $ttl . '秒后重试'];
    }

    public function delStorageFile($old, $new = [], $dir = "upload_files/"){
        foreach ($old as $value){
            if(! in_array($value, $new)){
                $filename_rep = "/api/uploadFiles/";
                $filename = str_replace($filename_rep, "", $value);
                $filePath = $dir . $filename;
                if (Storage::disk('public')->exists($filePath)) {
                    // 文件存在 进行删除操作
                    Storage::disk('public')->delete($filePath);
                }
            }
        }
    }
}