<?php

// Classes
//////////////////////////////////////////

class ProgressBar {

	protected static $time_start;
	protected static $time_remain;
	protected static $time_update;
	protected static $total;
	protected static $done;
	protected static $message;
	
	public static function display($message = null) {
		
		$progress = self::$done/self::$total;
		$string = "PROGRESS:".round($progress*100,2);
		
		if ($message === true) {
			$message = self::$message;
			}
		
		if ($message) {
			if (time()-self::$time_update) { // only update the remaining time every 1 seconds
				$seconds = time() - self::$time_start;
				self::$time_remain = floor($seconds/$progress)-$seconds;
				self::$time_update = time();
				}
			$message = gmdate("H:i:s",self::$time_remain)." | ".$message;
			}
		
		if ($message) {
			return "\n".$string."\n".$message;
			} elseif (!strpos(__FILE__,".app")) {
			return "\r\033[K\r".$string;
			} else {
			return "\n".$string;
			}
		
		}
	
	public static function start($total, $message = null) {
		self::$done = 0;
		self::$total = $total;
		self::$time_start = time();
		self::$message = $message;
		return $message."\n".self::display();
		}

	public static function next($message = null) {
		self::$done++;
		return self::display($message);
		} 
    
    public static function finish() {
        global $wopt_currstep;
        $wopt_currstep++;
        self::$done = 0;
        return "\n";
    	}
	
	}

// Functions
//////////////////////////////////////////

/*
function getParents($zpath, $pathname) {
	$path = dirname($pathname);
	$parts = explode("/",trim(substr($path,strlen(basename($zpath))),"/"));
	foreach ($parts as $index => $part) {
		$parents[] = array($part, md5($zpath."/".implode("/",array_slice($parts, 0, $index+1))));
		}
	return $parents;
	}
*/

function stepString() {
	global $wopt_steps;
	global $wopt_currstep;
	return "Step ".$wopt_currstep." of ".$wopt_steps;
	}


function shortlabel($pathname, $max = 99) {
	$basename = basename($pathname);
	$suffix = "(...).".pathinfo($basename,PATHINFO_EXTENSION);
	if (strlen($basename) > $max) {
		$return = substr($basename, 0, ($max-strlen($suffix))).$suffix;
		} else {
		$return = $basename;
		}
	return $return;
	}

function human_filesize($bytes, $decimals = 2) {
    $size = array('B','kB','MB','GB','TB','PB','EB','ZB','YB');
    $factor = floor((strlen($bytes) - 1) / 3);
    return sprintf("%.{$decimals}f", $bytes / pow(1024, $factor)) . @$size[$factor];
	}

class plistParser extends XMLReader {
	public function parseString($string) { $this->XML($string); return $this->process(); }
    private function process() {
    	$this->read();
    	if($this->nodeType !== XMLReader::DOC_TYPE || $this->name !== "plist") { throw new Exception(sprintf("Error parsing plist. nodeType: %d -- Name: %s", $this->nodeType, $this->name), 2); }
		if(!$this->next("plist") || $this->nodeType !== XMLReader::ELEMENT || $this->name !== "plist") { throw new Exception(sprintf("Error parsing plist. nodeType: %d -- Name: %s", $this->nodeType, $this->name), 3); }
		$plist = array(); while($this->read()) { if($this->nodeType == XMLReader::ELEMENT) { $plist[] = $this->parse_node(); } }
		if(count($plist) == 1 && $plist[0]) { return $plist[0]; } else { return $plist; }
		}
	private function parse_node() {
		if($this->nodeType !== XMLReader::ELEMENT) return;
		switch($this->name) {
			case 'data': return base64_decode($this->getNodeText()); break;
			case 'real': return floatval($this->getNodeText()); break;
			case 'string': return $this->getNodeText(); break;
			case 'integer': return intval($this->getNodeText()); break;
			case 'date': return $this->getNodeText(); break;
			case 'true': return true; break;
			case 'false': return false; break;
			case 'array': return $this->parse_array(); break;
			case 'dict': return $this->parse_dict(); break;
			default: throw new Exception(sprintf("Not a valid plist. %s is not a valid type", $this->name), 4);
			}			
		}
	private function parse_dict() {
		$array = array(); $this->nextOfType(XMLReader::ELEMENT);
		do { if($this->nodeType !== XMLReader::ELEMENT || $this->name !== "key") { if(!$this->next("key")) { return $array; } } $key = $this->getNodeText(); $this->nextOfType(XMLReader::ELEMENT); $array[$key] = $this->parse_node(); $this->nextOfType(XMLReader::ELEMENT, XMLReader::END_ELEMENT); }
		while($this->nodeType && !$this->isNodeOfTypeName(XMLReader::END_ELEMENT, "dict")); return $array;
		}
	private function parse_array() {
		$array = array(); $this->nextOfType(XMLReader::ELEMENT);
		do { $array[] = $this->parse_node(); $this->nextOfType(XMLReader::ELEMENT, XMLReader::END_ELEMENT); }
		while($this->nodeType && !$this->isNodeOfTypeName(XMLReader::END_ELEMENT, "array")); return $array;
		}
	private function getNodeText() { $string = $this->readString(); $this->nextOfType(XMLReader::END_ELEMENT); return $string; }
	private function nextOfType() { $types = func_get_args(); $this->read(); while($this->nodeType && !(in_array($this->nodeType, $types))) { $this->read(); } }
	private function isNodeOfTypeName($type, $name) { return $this->nodeType === $type && $this->name === $name; }
	}

function parseMediaInfo ($xml) {
	$xml = simplexml_load_string($xml);
    $data = array();
    $data['version'] = (string) $xml['version'];
    foreach ($xml->File->track as $track) {
		$trackType = strtolower($track['type']);
		$trackId = isset($track['streamid']) ? $track['streamid'] : 1;
		$trackId = (string)$trackId;
		$trackData = [];
		foreach ($track as $rawKey => $rawVal) {
			$key = strtolower($rawKey);
			$val = (string)$rawVal;
			if ($key == 'stream_identifier') { continue; }
			if (!array_key_exists($key, $trackData)) {
				$trackData[$key] = array($val);
				} elseif (!in_array($val, $trackData[$key])) {
				$trackData[$key][] = $val;
				}
            }
		if ($trackType == 'general') {
			$data['file']['general'] = $trackData;
			} else {
			$data['file'][$trackType][$trackId] = $trackData;
			}
		}
	return $data;
	}

?>