<?php

namespace addons\alivod\library;

/**
 * 阿里vod
 */
class Alivod
{
    protected static $instance;


    /**
     * 解密KMS数据密钥中的CiphertextBlob密文。
     * @param $CipherText 待解密的密文。
     * @return mixed
     */
    public static function decryptKMSDataKey($CipherText){
        $playService = new \ShaoZeMing\AliVod\Services\PlayService();
        return $playService->decryptKMSDataKey($CipherText);
    }


    /**
     * 调用SubmitTranscodeJobs提交媒体转码作业，开始异步转码处理。
     * @param $videoId 视频ID
     * @param $TemplateGroupId 视频转码时使用的转码组ID
     * @return mixed
     */
    public static function submitTranscodeJobs($videoId,$TemplateGroupId){

        $generateKMSDataKey = \addons\alivod\library\Alivod::generateKMSDataKey();
        $CiphertextBlob = $generateKMSDataKey->CiphertextBlob;
        global $_W;
        if(defined('TUZHI_SYSTEM_TYPE') && TUZHI_SYSTEM_TYPE == 'single'){
            $DecryptKeyUri = $_W['siteroot'].'/index.php?i=1&route=addons/alivod/index/decode&CipherText='.$CiphertextBlob;
        }else{
            $DecryptKeyUri = $_W['siteroot'].'/app/index.php?i='.$_W['uniacid'].'&c=entry&m=tuzi_v1&do=index&route=addons/alivod/index/decode&CipherText='.$CiphertextBlob;
        }
        $EncryptConfig = '{"CipherText":"'.$CiphertextBlob.'","DecryptKeyUri":"'.$DecryptKeyUri.'","KeyServiceType":"KMS"}';

        $playService = new \ShaoZeMing\AliVod\Services\TranscodeService();
        return $playService->submitTranscodeJobs($videoId,$TemplateGroupId,$EncryptConfig);
    }


    /**
     * 调用SubmitTranscodeJobs提交媒体转码作业，开始异步转码处理。
     * @param $videoId 视频ID
     * @param $TemplateGroupId 视频转码时使用的转码组ID
     * @return mixed
     */
    public static function generateKMSDataKey(){
        $playService = new \ShaoZeMing\AliVod\Services\TranscodeService();
        return $playService->generateKMSDataKey();
    }


    /**
     * 通过音视频ID直接获取媒体文件（支持视频和音频）的播放地址。
     * @param $videoId
     * @return mixed
     */
    public static function getPlayInfo($videoId){
        $playService = new \ShaoZeMing\AliVod\Services\PlayService();
        return $playService->getPlayInfo($videoId);
    }

    /**
     * 查询转码任务列表
     * @param $videoId
     * @return mixed
     */
    public static function getListTranscodeTask($videoId){
        $playService = new \ShaoZeMing\AliVod\Services\TranscodeService();
        return $playService->getListTranscodeTask($videoId);
    }

    /**
     * 获取音视频播放时所需的播放凭证。
     * @param $videoId
     * @return mixed
     */
    public static function getVideoPlayAuth($videoId){
        $playService = new \ShaoZeMing\AliVod\Services\PlayService();
        return $playService->getVideoPlayAuth($videoId);
    }


    /**
     * 解析阿里云点播标签
     * @param $content
     * @return array|string|string[]|null
     */
    public static function parseAliovdTag($content){

        //判断是否包含<alivod>标签
        if(strpos($content, "<alivod>") !== false){
            // 使用正则表达式匹配<alivod>标签及其内容
            $content = html_entity_decode($content);
            $pattern = '/<alivod>(.*?)<\/alivod>/';
            $content = preg_replace_callback($pattern, array(__CLASS__, 'getPlayUrl'), $content);
            return $content;
        }

        return self::getPlayUrl($content);
    }


    /**
     * 解析富文本内容中的阿里云点播标签
     * @param $content
     * @return array|string|string[]|null
     */
    public static function parseContentAliovdTag($content){

        //判断是否包含<alivod>标签
        if(strpos($content, "<alivod>") !== false){
            // 使用正则表达式匹配<alivod>标签及其内容
            $content = html_entity_decode($content);
            $pattern = '/<alivod>(.*?)<\/alivod>/';
            $content = preg_replace_callback($pattern, array(__CLASS__, 'getPlayUrl'), $content);
            return $content;
        }

        return $content;
    }

    
    /**
     * 获取源文件信息
     * @remark 获取音视频的源文件信息，包括文件地址、分辨率、码率等。
     * @params $tag 附件保存的阿里云点播文件标签
     * @return void
     */
    public static function getMezzanineInfo($tag){

        $content = html_entity_decode($tag);
        $pattern = '/<alivod>(.*?)<\/alivod>/';
        //正则获取$pattern过滤后的内容
        preg_match($pattern, $content, $matches);

        $playService = new \ShaoZeMing\AliVod\Services\FileService();
        return $playService->getMezzanineInfo($matches[1]);
    }

    /**
     * 获取播放地址
     * @param $match
     * @return string
     */
    public static function getPlayUrl($match) {

        $link = '';
        $url = '';
        try{
            $url = is_array($match) ? $match[1] : $match;
//            $cacheData = \think\Cache::get(\app\common\constant\cache\Keys::VOD_PLAY_URL($url));
//            if($cacheData){
//                return $cacheData;
//            }
            $data = \addons\alivod\library\Alivod::getPlayInfo($url);
            foreach ($data->PlayInfoList->PlayInfo as $item){
                if($item->EncryptType == 'HLSEncryption'){
                    $link = $item->PlayURL;
                    break;
                }
            }
        }catch (\Exception $e){}
        // 在实际应用中，你可以根据匹配的内容进行解析和替换
//        if($url && $link){
//            \think\Cache::tag(\app\common\constant\cache\Keys::VOD_TAG)->set(\app\common\constant\cache\Keys::VOD_PLAY_URL($url),$link);
//        }

        return $link;
    }


}