<?php

namespace App\Service;

use App\Log;
use App\RedisModel;

class BingtianService
{
    const BASE_URI = 'https://admin-video.shruisong.net/';
    const SESSION_RDS_KEY = 'Playlet:BingTianSession';

    /*
     * 调用接口取得凭证
     * */
    public static function getSession()
    {
        $session = RedisModel::get(self::SESSION_RDS_KEY);
        if(empty($session)) {
            $session = self::setSession();
        }

        return $session;
    }

    public static function setSession($retry=0)
    {
        $url = self::BASE_URI . 'User/login?time=' . time() .' 257';
        $body = [
            'username' => 'liedou',
            'password' => '28IL7erA'
        ];

        $headers = [
            'Origin:https://h5-video.shruisong.net',
            'Accept-Encoding:gzip, deflate, br',
            'Accept-Language:zh-CN,zh;q=0.9',
            'User-Agent:Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 Safari/537.36',
            'Content-Type:application/x-www-form-urlencoded;charset=UTF-8',
            'Accept:application/json, text/plain, */*',
            'Connection:keep-alive'
        ];

        $res = HttpService::curl_post($url, $body, $headers);
        $res = json_decode($res, true);

        $session = null;
        if( (isset($res['code']) && $res['code']=='0000' && isset($res['data']['session']) )){

            $session = $res['data']['session'];
            RedisModel::set(self::SESSION_RDS_KEY, $session);

        } elseif( $retry < 5) {
            $retry++;
            $session = self::setSession($retry);
        } 

        if( !$session ){
            Log::logError('冰甜接口调用凭证获取失败', [
                'res' => $res,
                'retry' => $retry
            ], 'BingtSetSession');
        }
    
        return $session;
    }

    public static function crawlBingtApi($url, $body=[], $retry=0)
    {
        $session = BingtianService::getSession();
        if( !$session ){
            return false;
        }

        $headers = [
            'Origin:https://h5-video.shruisong.net',
            'Accept-Encoding:gzip, deflate, br',
            'Accept-Language:zh-CN,zh;q=0.9',
            'User-Agent:Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 Safari/537.36',
            'Content-Type:application/x-www-form-urlencoded;charset=UTF-8',
            'Accept:application/json, text/plain, */*',
            'Connection:keep-alive',
            'session:'. $session
        ];

        $res = HttpService::curl_post($url, $body, $headers);
        $res = json_decode($res, true);

        if(isset($res['code']) && $res['code']=='10004' && $retry<5 ){
            $retry++;
            //session过期，重置
            RedisModel::del(BingtianService::SESSION_RDS_KEY);
            $res = self::crawlBingtApi($url, $body, $retry);
        }
        
        return $res;
    }
}