<?php
  /**
   * Copyright (c) 2013 Bart Visscher <bartv@thisnet.nl>
   * This file is licensed under the Affero General Public License version 3 or
   * later.
   * See the COPYING-README file.
   */
  
  /**
   * Prints an XSS escaped string
   * @param string $string the string which will be escaped and printed
   */
  function p($string) {
  	print(OC_Util::sanitizeHTML($string));
  }
  
  /**
   * Prints an unescaped string
   * @param string $string the string which will be printed as it is
   */
  function print_unescaped($string) {
  	print($string);
  }
  
  /**
   * @brief make OC_Helper::linkTo available as a simple function
   * @param string $app app
   * @param string $file file
   * @param array $args array with param=>value, will be appended to the returned url
   * @return string link to the file
   *
   * For further information have a look at OC_Helper::linkTo
   */
  function link_to( $app, $file, $args = array() ) {
  	return OC_Helper::linkTo( $app, $file, $args );
  }
  
  /**
   * @param $key
   * @return string url to the online documentation
   */
  function link_to_docs($key) {
  	return OC_Helper::linkToDocs($key);
  }
  
  /**
   * @brief make OC_Helper::imagePath available as a simple function
   * @param string $app app
   * @param string $image image
   * @return string link to the image
   *
   * For further information have a look at OC_Helper::imagePath
   */
  function image_path( $app, $image ) {
  	return OC_Helper::imagePath( $app, $image );
  }
  
  /**
   * @brief make OC_Helper::mimetypeIcon available as a simple function
   * @param string $mimetype mimetype
   * @return string link to the image
   *
   * For further information have a look at OC_Helper::mimetypeIcon
   */
  function mimetype_icon( $mimetype ) {
  	return OC_Helper::mimetypeIcon( $mimetype );
  }
  
  /**
   * @brief make preview_icon available as a simple function
   * Returns the path to the preview of the image.
   * @param $path path of file
   * @returns link to the preview
   *
   * For further information have a look at OC_Helper::previewIcon
   */
  function preview_icon( $path ) {
  	return OC_Helper::previewIcon( $path );
  }
  
  function publicPreview_icon ( $path, $token ) {
  	return OC_Helper::publicPreviewIcon( $path, $token );
  }
  
  /**
   * @brief make OC_Helper::humanFileSize available as a simple function
   * @param int $bytes size in bytes
   * @return string size as string
   *
   * For further information have a look at OC_Helper::humanFileSize
   */
  function human_file_size( $bytes ) {
  	return OC_Helper::humanFileSize( $bytes );
  }
  
  /**
   * @brief Strips the timestamp of its time value
   * @param int $timestamp UNIX timestamp to strip
   * @return $timestamp without time value
   */
  function strip_time($timestamp){
  	$date = new \DateTime("@{$timestamp}");
  	$date->setTime(0, 0, 0);
  	return intval($date->format('U'));
  }
  
  /**
   * @brief Formats timestamp relatively to the current time using
   * a human-friendly format like "x minutes ago" or "yesterday"
   * @param int $timestamp timestamp to format
   * @param int $fromTime timestamp to compare from, defaults to current time
   * @param bool $dateOnly whether to strip time information
   * @return formatted timestamp
   */
  function relative_modified_date($timestamp, $fromTime = null, $dateOnly = false) {
  	$l=OC_L10N::get('lib');
  	if (!isset($fromTime) || $fromTime === null){
  		$fromTime = time();
  	}
  	if ($dateOnly){
  		$fromTime = strip_time($fromTime);
  		$timestamp = strip_time($timestamp);
  	}
  	$timediff = $fromTime - $timestamp;
  	$diffminutes = round($timediff/60);
  	$diffhours = round($diffminutes/60);
  	$diffdays = round($diffhours/24);
  	$diffmonths = round($diffdays/31);
  
  	if(!$dateOnly && $timediff < 60) { return $l->t('seconds ago'); }
  	else if(!$dateOnly && $timediff < 3600) { return $l->n('%n minute ago', '%n minutes ago', $diffminutes); }
  	else if(!$dateOnly && $timediff < 86400) { return $l->n('%n hour ago', '%n hours ago', $diffhours); }
  	else if((date('G', $fromTime)-$diffhours) >= 0) { return $l->t('today'); }
  	else if((date('G', $fromTime)-$diffhours) >= -24) { return $l->t('yesterday'); }
  	// 86400 * 31 days = 2678400
  	else if($timediff < 2678400) { return $l->n('%n day go', '%n days ago', $diffdays); }
  	// 86400 * 60 days = 518400
  	else if($timediff < 5184000) { return $l->t('last month'); }
  	else if((date('n', $fromTime)-$diffmonths) > 0) { return $l->n('%n month ago', '%n months ago', $diffmonths); }
  	// 86400 * 365.25 days * 2 = 63113852
  	else if($timediff < 63113852) { return $l->t('last year'); }
  	else { return $l->t('years ago'); }
  }
  
  function html_select_options($options, $selected, $params=array()) {
  	if (!is_array($selected)) {
  		$selected=array($selected);
  	}
  	if (isset($params['combine']) && $params['combine']) {
  		$options = array_combine($options, $options);
  	}
  	$value_name = $label_name = false;
  	if (isset($params['value'])) {
  		$value_name = $params['value'];
  	}
  	if (isset($params['label'])) {
  		$label_name = $params['label'];
  	}
  	$html = '';
  	foreach($options as $value => $label) {
  		if ($value_name && is_array($label)) {
  			$value = $label[$value_name];
  		}
  		if ($label_name && is_array($label)) {
  			$label = $label[$label_name];
  		}
  		$select = in_array($value, $selected) ? ' selected="selected"' : '';
  		$html .= '<option value="' . OC_Util::sanitizeHTML($value) . '"' . $select . '>' . OC_Util::sanitizeHTML($label) . '</option>'."
  ";
  	}
  	return $html;
  }