<?php
/**
*
* @ This file is created by http://DeZender.Net
* @ deZender (PHP8 Decoder for SourceGuardian Encoder)
*
* @ Version			:	8.1.0.9
* @ Author			:	DeZender
* @ Release on		:	27.10.2023
* @ Official site	:	http://DeZender.Net
*
*/

namespace App\Utils;

class FFMpegCommandBuilder
{
	protected $source = null;
	protected $isInternalRestream = null;
	protected $isHttpSource = null;
	protected $sourceInfo = null;
	protected $errorsOutput = null;
	protected $commandOutput = null;
	protected $params = [
		'template'            => [],
		'initial'             => [],
		'fetch_options'       => [],
		'hwaccel'             => [],
		'source'              => [],
		'gen_pts'             => [],
		'read_native'         => [],
		'probesize'           => [],
		'progress'            => [],
		'analyzeduration'     => [],
		'remove_subs'         => [],
		'transcode'           => [],
		'transcode_rtmp'      => [],
		'meta_data'           => [],
		'subtitles'           => [],
		'map'                 => [],
		'fingerprint_options' => [],
		'fingerprint_format'  => [],
		'output'              => [],
		'concat'              => [],
		'ffmpeg_build'        => []
	];
	private mixed $ondemandProbesize;

	public function __construct($source, $isInternalRestream = false, $sourceInfo = [])
	{
		$this->source = $source;
		$this->isInternalRestream = $isInternalRestream;
		$this->sourceInfo = $sourceInfo;

		if (!empty($sourceInfo['fetch_options'])) {
			$this->addParams('fetch_options', $sourceInfo['fetch_options']);
		}

		$this->setSource($source);
	}

	protected function getTimestampsFromStream(\App\Models\Stream $stream): string
	{
		return ($stream->generate_timestamps ? '-fflags +genpts -async 1' : '-start_at_zero -copyts -vsync 0 -correct_ts_overflow 0 -avoid_negative_ts disabled -max_interleave_delta 0');
	}

	public function setTimestampsArchiveParams(): FFMpegCommandBuilder
	{
		$this->addParams('gen_pts', '-copyts -vsync 0 -correct_ts_overflow 0 -avoid_negative_ts disabled -max_interleave_delta 0');
		return $this;
	}

	public function setErrorsOutput($file): FFMpegCommandBuilder
	{
		$this->errorsOutput = $file;
		return $this;
	}

	public function setCommandOutput($file): FFMpegCommandBuilder
	{
		$this->commandOutput = $file;
		return $this;
	}

	public function setSource($source): FFMpegCommandBuilder
	{
		if ($this->isRtmpProtocol($source)) {
			$this->addParams('fetch_options', '-rtmp_live 1');
		}

		$this->isHttpSource = $this->isHttpProtocol($source);
		$this->addParams('source', sprintf('-i "%s"', $source));
		return $this;
	}

	public function setLogLevel(string $level): FFMpegCommandBuilder
	{
		$this->addParams('initial', sprintf('-loglevel %s', $level));
		return $this;
	}

	public function setProxy($proxy): FFMpegCommandBuilder
	{
		$this->addParams('fetch_options', sprintf('-http_proxy "%s"', (string) $proxy));
		return $this;
	}

	public function setUserAgent(string $userAgent): FFMpegCommandBuilder
	{
		$this->addParams('fetch_options', sprintf('-user_agent "%s"', $userAgent));
		return $this;
	}

	public function setFingerprint($text, $fontSize, $color, $x, $y, $useTimer = false)
	{
		if ($useTimer) {
			$text = $text . ' ' . date('H-i-s');
		}

		$this->addParams('fingerprint_options', '  -vf  "drawtext=text=' . ('\'' . $text . '\'') . ':fontcolor=' . (string) $color . ':fontsize=' . (string) $fontSize . ':x=' . ($x . ':y=' . $y) . '"');
		return $this;
	}

	public function setFingerprintFormat($format, $vcodec, $output = '-')
	{
		$this->addParams('fingerprint_format', ' -vcodec ' . $vcodec . ' -preset ultrafast -codec:a copy -scodec copy  -f mpegts ' . $output);
		return $this;
	}

	protected function getMapParamsFromStream(\App\Models\Stream $stream): string
	{
		if ($stream->type === \App\Models\Enum\StreamType::RADIO) {
			return '-map 0:a?';
		}

		$map = '';

		if ($stream->stream_all) {
			$map = $this->getDisposition($stream);
		}
		else if ($stream->custom_map->isNotEmpty()) {
			$map = $stream->custom_map->join(' ') . ' -copy_unknown';
			$map = preg_replace('(\\(.*\\))', '', $map);
		}
		if (!in_array($stream->type, [\App\Models\Enum\StreamType::EPISODE, \App\Models\Enum\StreamType::MOVIE]) && ($stream->read_settings->store_format ?? 'hls') == 'hls') {
			$map .= ' -sn';
		}

		return $map;
	}

	protected function getReadNativeParamFromStream(\App\Models\Stream $stream): string
	{
		if ($stream->read_native) {
			return '-re';
		}

		return '';
	}

	public function setProbesize($value = 5000000): FFMpegCommandBuilder
	{
		$value = $value ?? 5000000;
		$this->params['probesize'] = [];
		$this->addParams('probesize', sprintf('-probesize %s', $value));
		return $this;
	}

	public function addSubtitles($params): FFMpegCommandBuilder
	{
		$this->addParams('subtitles', $params);

		if (!empty($params)) {
..................................................................
........................................
....................