<?php
/**
 * @package	AcyMailing for Joomla!
 * @version	5.9.0
 * @author	acyba.com
 * @copyright	(C) 2009-2017 ACYBA S.A.R.L. All rights reserved.
 * @license	GNU/GPLv3 http://www.gnu.org/licenses/gpl-3.0.html
 */

defined('_JEXEC') or die('Restricted access');
?><?php
defined('_JEXEC') or die('Restricted access');

class plgAcymailingTablecontents extends JPlugin{

	var $noResult = array();

	function __construct(&$subject, $config){
		parent::__construct($subject, $config);
		if(!isset($this->params)){
			$plugin = JPluginHelper::getPlugin('acymailing', 'tablecontents');
			$this->params = new acyParameter($plugin->params);
		}
	}

	function acymailing_getPluginType(){
		$onePlugin = new stdClass();
		$onePlugin->name = acymailing_translation('ACY_TABLECONTENTS');
		$onePlugin->function = 'acymailingtablecontents_show';
		$onePlugin->help = 'plugin-tablecontents';

		return $onePlugin;
	}

	function acymailingtablecontents_show(){

		$contenttype = array();
		$contenttype[] = acymailing_selectOption('', acymailing_translation('ACY_EXISTINGANCHOR'));
		for($i = 1; $i < 6; $i++){
			$contenttype[] = acymailing_selectOption("|type:h".$i, 'H'.$i);
		}
		$contenttype[] = acymailing_selectOption('class', acymailing_translation('CLASS_NAME'));

		$contentsubtype = array();
		$contentsubtype[] = acymailing_selectOption('', acymailing_translation('ACY_NONE'));
		for($i = 1; $i < 6; $i++){
			$contentsubtype[] = acymailing_selectOption("|subtype:h".$i, 'H'.$i);
		}
		$contentsubtype[] = acymailing_selectOption('class', acymailing_translation('CLASS_NAME'));

		?>

		<script language="javascript" type="text/javascript">
			<!--
			function updateTag(){
				var tag = '{tableofcontents';
				if(document.adminForm.contenttype.value){
					if(document.adminForm.contenttype.value == 'class'){
						document.adminForm.classvalue.style.display = '';
						tag += '|class:' + document.adminForm.classvalue.value;
					}else{
						document.adminForm.classvalue.style.display = 'none';
						tag += document.adminForm.contenttype.value;
					}
				}
				if(document.adminForm.contentsubtype.value){
					if(document.adminForm.contentsubtype.value == 'class'){
						document.adminForm.subclassvalue.style.display = '';
						tag += '|subclass:' + document.adminForm.subclassvalue.value;
					}else{
						document.adminForm.subclassvalue.style.display = 'none';
						tag += document.adminForm.contentsubtype.value;
					}
				}
				tag += '}';

				setTag(tag);
			}
			//-->
		</script>
		<div class="onelineblockoptions">
			<span class="acyblocktitle"><?php echo acymailing_translation('ACY_GENERATEANCHOR'); ?></span>
			<table width="100%" class="acymailing_table">
				<tr>
					<td><?php echo acymailing_translation_sprintf('ACY_LEVEL', 1)?></td>
					<td><?php echo acymailing_select($contenttype, 'contenttype', 'size="1" onchange="updateTag();"', 'value', 'text'); ?><input type="text" style="display:none" onchange="updateTag();" name="classvalue"/></td>
				</tr>
				<tr>
					<td><?php echo acymailing_translation_sprintf('ACY_LEVEL', 2)?></td>
					<td><?php echo acymailing_select($contentsubtype, 'contentsubtype', 'size="1" onchange="updateTag();"', 'value', 'text'); ?><input type="text" style="display:none" onchange="updateTag();" name="subclassvalue"/></td>
				</tr>
			</table>
		</div>
		<?php
		acymailing_addScript(true, "document.addEventListener(\"DOMContentLoaded\", function(){ updateTag(); });");
	}


	function acymailing_replaceusertags(&$email, &$user, $send = true){

		if(isset($this->noResult[intval($email->mailid)])) return;

		$match = '#{tableofcontents(.*)}#Ui';

		$variables = array('subject', 'body', 'altbody');

		$found = false;
		foreach($variables as $var){
			if(empty($email->$var)) continue;
			$found = preg_match_all($match, $email->$var, $results[$var]) || $found;
			if(empty($results[$var][0])) unset($results[$var]);
		}

		if(!$found){
			$this->noResult[intval($email->mailid)] = true;
			return;
		}

		$mailerHelper = acymailing_get('helper.mailer');

		$htmlreplace = array();
		$textreplace = array();
		foreach($results as $var => $allresults){
			foreach($allresults[0] as $i => $oneTag){
				if(isset($htmlreplace[$oneTag])) continue;

				$article = $this->_generateTable($allresults, $i, $email);
				$htmlreplace[$oneTag] = $article;
				$textreplace[$oneTag] = $mailerHelper->textVersion($article);
				$subjectreplace[$oneTag] = strip_tags($article);
			}
		}
		$email->body = str_replace(array_keys($htmlreplace), $htmlreplace, $email->body);
		$email->altbody = str_replace(array_keys($textreplace), $textreplace, $email->altbody);
		$email->subject = str_replace(array_keys($subjectreplace), $subjectreplace, $email->subject);
	}

	function _generateTable(&$results, $i, &$email){

		$arguments = explode('|', strip_tags($results[1][$i]));
		$tag = new stdClass();
		$tag->divider = $this->params->get('divider', 'br');
		$tag->before = '';
		$tag->after = '';
		$tag->subdivider = $this->params->get('divider', 'br');
		$tag->subbefore = '';
		$tag->subafter = '';
		for($i = 1, $a = count($arguments); $i < $a; $i++){
			$args = explode(':', $arguments[$i]);
			if(isset($args[1])){
				$tag->{$args[0]} = $args[1];
			}else{
				$tag->{$args[0]} = true;
			}
		}

		if($tag->divider == 'br'){
			$tag->divider = '<br />';
			$tag->subbefore = $tag->subdivider = '<br /> - ';
		}elseif($tag->divider == 'space'){
			$tag->subdivider = ', ';
			$tag->divider = ' ';
			$tag->subbefore = ' ( ';
			$tag->subafter = ' ) ';
		}elseif($tag->divider == 'li'){
			$tag->subdivider = $tag->divider = '</li><li>';
			$tag->subbefore = $tag->before = '<ul><li>';
			$tag->subafter = $tag->after = '</li></ul>';
		}

		$this->updateMail = array();
		$this->links = array();
		$this->sublinks = array();
		$anchorLinks = $this->_findLinks($tag, $email);
		if(!empty($tag->subtype) || !empty($tag->subclass)){
			$anchorSubLinks = $this->_findLinks($tag, $email, true);
			if(empty($this->links)){
				$this->links = $this->sublinks;
				unset($this->sublinks);
			}
		}

		$links = $this->links;
		if(!empty($tag->limit)){
			$links = array_slice($links, 0, $tag->limit);
		}

		if(empty($links)) return '';
		if(!empty($this->updateMail)) $email->body = str_replace(array_keys($this->updateMail), $this->updateMail, $email->body);

		if(!empty($this->sublinks)){
			$sublinks = $this->sublinks;
			foreach($links as $ilink => $oneLink){
				$allsublinks = array();
				$from = $anchorLinks['pos'][$ilink];
				$to = empty($anchorLinks['pos'][$ilink + 1]) ? 9999999999999 : $anchorLinks['pos'][$ilink + 1];
				foreach($sublinks as $isublink => $oneSubLink){
					if($anchorSubLinks['pos'][$isublink] > $to) break;
					if($anchorSubLinks['pos'][$isublink] > $from) $allsublinks[] = $oneSubLink;
				}
				if(!empty($allsublinks)) $links[$ilink] = $links[$ilink].$tag->subbefore.implode($tag->subdivider, $allsublinks).$tag->subafter;
			}
		}

		$result = '<div class="tableofcontents">'.$tag->before.implode($tag->divider, $links).$tag->after.'</div>';
		if(file_exists(ACYMAILING_MEDIA.'plugins'.DS.'tablecontents.php')){
			ob_start();
			require(ACYMAILING_MEDIA.'plugins'.DS.'tablecontents.php');
			$result = ob_get_clean();
		}
		return $result;
	}

	function _findLinks(&$tag, &$email, $sub = false){
		if($sub){
			$varType = 'subtype';
			$varClass = 'subclass';
			$varLink = &$this->sublinks;
		}else{
			$varType = 'type';
			$varClass = 'class';
			$varLink = &$this->links;
		}
		if(!empty($tag->$varType)){
			preg_match_all('#<'.$tag->$varType.'[^>]*>((?!</ *'.$tag->$varType.'>).)*</ *'.$tag->$varType.'>#Uis', $email->body, $anchorresults);
		}elseif(!empty($tag->class)){
			preg_match_all('#<[^>]*class="'.$tag->$varClass.'"[^>]*>(<[^>]*>|[^<>])*</.*>#Uis', $email->body, $anchorresults);
			$tag->$varType = 'item';
		}else{
			preg_match_all('#<a[^>]*name="([^">]*)"[^>]*>((?!</ *a>).)*</ *a>#Uis', $email->body, $anchorresults);
		}

		if(empty($anchorresults)) return '';


		foreach($anchorresults[0] as $i => $oneContent){
			$anchorresults['pos'][$i] = strpos($email->body, $oneContent);
			$linktext = strip_tags($oneContent);
			if(empty($linktext)) continue;
			if(empty($tag->$varType)){
				$varLink[$i] = '<a href="#'.$anchorresults[1][$i].'" class="oneitem" >'.$linktext.'</a>';
			}else{
				$varLink[$i] = '<a href="#'.$tag->$varType.$i.'" class="oneitem oneitem'.$tag->$varType.'" >'.$linktext.'</a>';
				if(preg_match('#<a[^>]*>[^<]*'.preg_quote($oneContent, '#').'#Uis', $email->body, $linkBefore)){
					$this->updateMail[$linkBefore[0]] = '<a name="'.$tag->$varType.$i.'"></a>'.$linkBefore[0];
				}else{
					$this->updateMail[$oneContent] = '<a name="'.$tag->$varType.$i.'"></a>'.$oneContent;
				}
			}
		}

		return $anchorresults;
	}
}//endclass
