<?php //$id: $
/**
 * Script handling the migration between an old Dokeos platform (<1.8.0) to 
 * setup the new database system (4 scorm tables inside the course's database)
 * @package dokeos.scorm 
 * @author Yannick Warnier <ywarnier@beeznest.org>
 */
/**
 * Include mandatory libraries
 */
require_once('../inc/lib/main_api.lib.php');
require_once('../inc/lib/database.lib.php');
require_once('../inc/lib/document.lib.php');
//require_once('../inc/lib/fileDisplay.lib.php');
//require_once('../inc/lib/fileUpload.lib.php'); //replace_dangerous_char()
require_once('../inc/lib/fileManage.lib.php'); //check_name_exists()
//include_once('../inc/lib/pclzip/pclzip.lib.php');
require_once('../newscorm/learnpath.class.php');
require_once('../newscorm/scorm.class.php');

ini_set('max_execution_time',0);

$loglevel = 0;

//get table prefix from $prefix variable declared in update-db-....inc.php
$table_prefix = $prefix;
$sys_course_path = $pathForm.'courses/';

function my_get_time($time){
	$matches = array();
	if(preg_match('/(\d{1,4}):(\d{2})(:(\d{2})(\.\d*)?)?/',$time,$matches)){
		if(count($matches)==3){
			return ($matches[1]*60)+($matches[2]);
		}else{
			return ($matches[1]*3600)+($matches[2]*60)+($matches[4]);
		}
	}
	else return 0;
}

//open log file
$fh = fopen('../garbage/newscorm_'.time().'.log','w');
$fh_revert = fopen('../garbage/newscorm_'.time().'_revert.log','w');
$fh_res = fopen('../garbage/newscorm_'.time().'_res.log','w');
fwrite($fh,"-- Recording course homepages links changes to enable reverting\n");
fwrite($fh_revert,"-- Recording reverted course homepages links changes to enable reverting\n");
fwrite($fh_res,"-- Recording resulting course homepages links changes\n");

//echo "<html><body>";

/**
 * New tables definition:
 */
$new_lp = 'lp';
$new_lp_view = 'lp_view';
$new_lp_item = 'lp_item';
$new_lp_item_view = 'lp_item_view';
$new_lp_type = 'lp_type';

$max_dsp_lp = 0;
$courses_list = array();
$courses_id_list = array();
$courses_id_full_table_prefix_list = array();
$courses_dir_list = array();
mysql_select_db($dbNameForm);
$sql = "SELECT * FROM course";
$res = api_sql_query($sql,__FILE__,__LINE__);
while ($row = Database::fetch_array($res))
{
	$course_pref = $table_prefix;
	$dbname = $row['db_name'].'.'.$course_pref;
	$courses_list[] = $row['db_name'];
	$courses_id_list[$row['code']] = $row['db_name'];
	$courses_id_full_table_prefix_list[$row['code']] = $dbname;
	$courses_dir_list[$row['code']] = $row['directory']; 
}
if($loglevel>0){error_log("Tables created/deleted for all courses",0);}

/**
 * The migration needs to take all data from the original learnpath tables and add them to the new
 * lp, lp_view, lp_item and lp_item_view tables
 */
//MIGRATING LEARNPATHS
//test only one course
//$courses_list = array('fadtest_BLA');
foreach($courses_id_full_table_prefix_list as $course_code => $db)
{
	$incoherences = 0;
	if($loglevel>0){error_log("Now starting migration of learnpath tables from $db database...",0);}
	$lp_main = $db.TABLE_LEARNPATH_MAIN;
	$lp_ids = array();
	$lp_user = $db.TABLE_LEARNPATH_USER;
	$lp_users = array();
	$lp_chap = $db.TABLE_LEARNPATH_CHAPTER;
	$parent_chaps = array();
	$lp_chap_items = array();
	$ordered_chaps = array();
	$lp_item = $db.TABLE_LEARNPATH_ITEM;
	$lp_items = array();
	$lp_ordered_items = array();
	$parent_lps = array(); //keeps a track of chapter's learnpath ids
	$my_new_lp = $db.$new_lp;
	$my_new_lp_item = $db.$new_lp_item;
	$my_new_lp_view = $db.$new_lp_view;
	$my_new_lp_item_view = $db.$new_lp_item_view;
	
	//migrate learnpaths
	$sql_test = "SELECT * FROM $my_new_lp";
	$res_test = mysql_query($sql_test);
	$sql_lp = "SELECT * FROM $lp_main";
	if($loglevel>1){error_log("$sql_lp",0);}
	$res_lp = mysql_query($sql_lp);//using mysql_query to avoid dying on failure
	if(!$res_lp or !$res_test){
		if($loglevel>1){
			error_log("+++Problem querying DB $lp_main+++ skipping (".mysql_error().")",0);
			if(!$res_test){
				error_log("This might be due to no existing table in the destination course",0);
			}
		}
		continue;
	}
	$dsp_ord = 1;
	while($row = Database::fetch_array($res_lp))
	{
		//echo "Treating lp id : ".$row['learnpath_id']."<br />\n";
		$ins_lp_sql = "INSERT INTO $my_new_lp (lp_type,name,description,display_order,content_maker) " .
				"VALUES (1," .
						"'".mysql_real_escape_string($row['learnpath_name'])."'," .
						"'".mysql_real_escape_string($row['learnpath_description'])."',$dsp_ord,'Dokeos')";
		$ins_lp_res = api_sql_query($ins_lp_sql);
		$in_id = Database::get_last_insert_id();
		if(empty($in_id) or $in_id == false) die('Could not insert lp: '.$ins_lp_sql);
		$lp_ids[$row['learnpath_id']] = $in_id;
		$dsp_ord++;
		$max_dsp_lp = $dsp_ord;
	}
	//echo "<pre>lp_ids:".print_r($lp_ids,true)."</pre>\n";
	

	//MIGRATING LEARNPATH CHAPTERS

	$sql_lp_chap = "SELECT * FROM $lp_chap ORDER BY parent_chapter_id, display_order";
	//echo "$sql_lp_chap<br />\n";
	$res_lp_chap = api_sql_query($sql_lp_chap);	
	while($row = Database::fetch_array($res_lp_chap))
	{
		//echo "Treating chapter id : ".$row['id']."<br />\n";
		
		//TODO build path for this chapter (although there is no real path for any chapter)
		//TODO find out how to calculate the "next_item_id" with the "ordre" field
		$my_lp_item = $my_new_lp_item;
		$myname = mysql_real_escape_string($row['chapter_name']);
		$mydesc = mysql_real_escape_string($row['chapter_description']);
		$ins_lp_sql = "INSERT INTO $my_new_lp_item (" .
				"lp_id," .
				"item_type," .
				"title," .
				"description," .
				"path, " .
				"display_order, " .
				"next_item_id) " .
				"VALUES (" .
				"'".$lp_ids[$row['learnpath_id']]."'," . //insert new learnpath ID
				"'dokeos_chapter'," .
				"'".$myname."'," .
				"'".$mydesc."'," .
				"''," .
				$row['display_order'].", " .
				"123456" .
				")";
		//echo $ins_lp_sql."<br/>\n";
		$ins_res = api_sql_query($ins_lp_sql,__FILE__,__LINE__);
		$in_id = Database::get_last_insert_id();
		//echo "&nbsp;&nbsp;Inserted item $in_id<br />\n";
		if(empty($in_id) OR $in_id == false) die('Could not insert lp: '.$ins_sql);
		$parent_chaps[$row['id']] = $row['parent_chapter_id'];
		$lp_chap_items[$row['id']] = $in_id;
		$parent_lps[$row['id']] = $row['learnpath_id'];
		$ordered_chaps[$row['parent_chapter_id']][$row['display_order']]=$in_id;
		$lp_chaps_list[$row['learnpath_id']][]=$in_id;
	}
	//echo "<pre>parent_lps:".print_r($parent_lps,true)."</pre>\n";
	//Now one loop to update the parent_chapter_ids
	foreach($parent_chaps as $old_chap => $old_parent_chap){
		if($old_parent_chap != 0){
			$new_chap = $lp_chap_items[$old_chap];
			$new_parent = $lp_chap_items[$old_parent_chap];
			if(isset($new_chap) && $new_chap != '' 
				&& isset($new_parent) && $new_parent != '')
			{
				$sql_par_chap = "UPDATE $my_new_lp_item " .
					"SET parent_item_id = $new_parent " .
					"WHERE id = $new_chap";
				$res_par_chap = api_sql_query($sql_par_chap,__FILE__,__LINE__);
			}
		}
	}
	unset($parent_chaps);
	//Now one loop to set the next_item_id and the previous_item_id
	foreach($ordered_chaps as $parent_chap){
		$last = 0;
		foreach($ordered_chaps[$parent_chap] as $order => $new_id){
			$sql_upd_chaps = "UPDATE $my_new_lp_item " .
					"SET previous_item_id = $last " .
					"WHERE id = $new_id";
			$res_upd_chaps = api_sql_query($sql_upd_chaps,__FILE__,__LINE__);
		
			$next = 0;
			if(!empty($ordered_chaps[$parent_chap][$order+1])){
				$next = $ordered_chaps[$parent_chap][$order+1];
			}
			$sql_upd_chaps = "UPDATE $my_new_lp_item " .
					"SET next_item_id = $next " .
					"WHERE id = $new_id";
			$res_upd_chaps = api_sql_query($sql_upd_chaps,__FILE__,__LINE__);
			$last = $new_id;
		}
	}
	unset($ordered_chaps);
	
	//migrate learnpath_items
	//TODO define this array thanks to types defined in the learnpath_building scripts
	//TODO set order correctly
	$type_trans = array(
		'document' 	=> TOOL_DOCUMENT,
		'exercise' 	=> TOOL_QUIZ,
		'forum'		=> TOOL_FORUM,
		'Agenda'	=> TOOL_CALENDAR_EVENT,
		'Ad_Valvas' => TOOL_ANNOUNCEMENT,
		'Link'		=> TOOL_LINK,
		'Link _blank' => TOOL_LINK,
		'Exercise'	=> TOOL_QUIZ,
		'HotPotatoes'=> 'HotPotatoes',
		'Forum'		=> TOOL_FORUM,
		'Thread'	=> TOOL_THREAD,
		'Topic'		=> TOOL_THREAD,
		'Post'		=> TOOL_POST,
		'Document'	=> TOOL_DOCUMENT,
		'Assignments'=> 'Assignments',
		'Dropbox'	=> TOOL_DROPBOX,
		'Introduction_text'=> 'Introduction_text',
		'Course_description' => TOOL_COURSE_DESCRIPTION,
		'Groups'	=> TOOL_GROUP,
		'Users'		=> TOOL_USER,
		
		//'chapter'	=> 'dokeos_chapter', Chapters should all be in learnpath_chapter, no matter the nesting level
		
	);
	//MIGRATING LEARNPATH ITEMS
	$sql_lp_item = "SELECT * FROM $lp_item ORDER BY chapter_id, display_order";
	//echo "$sql_lp_item<br />\n";
	$res_lp_item = api_sql_query($sql_lp_item,__FILE__,__LINE__);	
	while($row = Database::fetch_array($res_lp_item))
	{
		//echo "Treating chapter ".$row['chapter_id'].", item ".$row['id']."<br />\n";
		$type = $type_trans[$row['item_type']];
		$ref = $row['item_id'];
		//TODO build item path
		//TODO calculate "next_item_id" with the "ordre" field
		//prepare prereqs
		//prerequisites in Dokeos 1.6 is only authorised on previous items, so
		//we know that we are gonna talk about an item that has already been passed
		//through here - if none found, print message
		$prereq_id = '';
		if(!empty($row['prereq_id'])){
			switch($row['prereq_type']){
				case 'c':
					//chapter-type prereq
					$prereq_id = $lp_chap_items[$row['prereq_id']];
					if(empty($prereq_id) && $loglevel>1){error_log("Could not find prereq chapter ".$row['prereq_id'],0);}
					break;
				case 'i':
				default:
					//item type prereq
					$prereq_id = $lp_items[$parent_lps[$row['chapter_id']]][$row['prereq_id']];
					if(empty($prereq_id) && $loglevel>1){error_log("Could not find prereq item ".$row['prereq_id'],0);}
					break;
			}
		}
		$my_parent_id = 0;
		if(isset($lp_chap_items[$row['chapter_id']]))
		{
			$my_parent_id = $lp_chap_items[$row['chapter_id']];
		}
		if(isset($lp_ids[$parent_lps[$row['chapter_id']]]))
		{ //if there is a parent learnpath
			$ins_lp_sql = "INSERT INTO $my_new_lp_item (" .
					"lp_id," .
					"item_type," .
					"ref, " .
					"title," .
					"description," .
					"path, " .
					"parent_item_id," .
					"prerequisite," .
					"display_order" .
					") VALUES (" .
					"'".$lp_ids[$parent_lps[$row['chapter_id']]]."'," . //insert new learnpath ID
					"'$type'," .
					"'$ref', " .
					"'".mysql_real_escape_string($row['title'])."'," .
					"'".mysql_real_escape_string($row['description'])."'," .
					"'$ref'," .
					"".$my_parent_id."," .
					"'$prereq_id'," .
					$row['display_order']." " .
					")";
			$ins_res = api_sql_query($ins_lp_sql,__FILE__,__LINE__);
			$in_id = Database::get_last_insert_id();
			//echo "&nbsp;&nbsp;Inserted item $in_id (".$row['title'].")<br />\n";
			if(empty($in_id) OR $in_id == false) die('Could not insert lp_item: '.$ins_sql);
			$lp_items[$parent_lps[$row['chapter_id']]][$row['id']] = $in_id;
			$lp_ordered_items[$parent_lps[$row['chapter_id']]][$row['chapter_id']][] = $in_id;
		}		
	}
	//echo "<pre>lp_items:".print_r($lp_items,true)."</pre>\n";
	// complete next_item_id field by going through the new table and looking at parent_id and display_order
	$order_sql = "SELECT * FROM $my_new_lp_item ORDER by lp_id ASC, parent_item_id ASC, display_order ASC";
	//echo "$order_sql<br />\n";
	$order_res = api_sql_query($order_sql,__FILE__,__LINE__);
	$order_item = array(); //this will contain a sequential list of item_id's, thus allowing to give a simple way to get next id...
	$lp_id = 0;
	//echo "<pre>";
	while($row = Database::fetch_array($order_res))
	{
		//print_r($row);
		if($row['lp_id'] != $lp_id)
		{
			//apply changes to the database and clean tool arrays
			$last = 0;
			foreach($order_item as $order_id => $item_id){
				$next = 0;
				if(!empty($order_item[$order_id+1])){
					$next = $order_item[$order_id+1];
				}
				$upd = "UPDATE $my_new_lp_item " .
						"SET next_item_id = ".$next."," .
						"    previous_item_id = ".$last." " .
						"WHERE id = ".$item_id;
				//echo "$upd<br />\n";
				api_sql_query($upd,__FILE__,__LINE__);
				$last = $item_id;
			}
			$order_item = array();
			$lp_id = $row['lp_id'];
			$order_item[] = $row['id'];
		}else{
			$order_item[] = $row['id'];
		}
	}
	//process the last LP stack
	$last = 0;
	foreach($order_item as $order_id => $item_id){
		$next = 0;
		if(!empty($order_item[$order_id+1])){
			$next = $order_item[$order_id+1];
		}
		$upd = "UPDATE $my_new_lp_item " .
				"SET next_item_id = ".$next."," .
				"    previous_item_id = ".$last." " .
				"WHERE id = ".$item_id;
		//echo "$upd<br />\n";
		api_sql_query($upd,__FILE__,__LINE__);
		$last = $item_id;
	}
	
	//echo "</pre>\n";
	
	//MIGRATING THE learnpath_user TABLE (results)
	$sql_lp_user = "SELECT * FROM $lp_user ORDER BY user_id, learnpath_id, learnpath_item_id";
	//echo "$sql_lp_user<br />\n";
	$res_lp_user = api_sql_query($sql_lp_user,__FILE__,__LINE__);
	$user_id = 0;
	$learnpath_id = 0;
	$lp_view = 0;
	while($row = Database::fetch_array($res_lp_user))
	{
		if($row['user_id']!=$user_id  OR $row['learnpath_id']!=$learnpath_id)  //the user has changed or this is the first
		{
			//insert a new lp_view
			$last = 0;
			if(!empty($lp_chaps_list[$row['learnpath_id']][0])){
				$last = $lp_chaps_list[$row['learnpath_id']][0];
			}
			if(empty($lp_ids[$row['learnpath_id']])){
				//this can be ignored as it means there was an LP before, this user
				//used it, but now it's been removed
				//echo "Somehow we also miss a lp_ids[".$row['learnpath_id']."] here<br />\n";
				$incoherences ++;
			}else{				
				$mylpid = $lp_ids[$row['learnpath_id']];
				$sql_ins_view = "INSERT INTO $my_new_lp_view(" .
						"lp_id," .
						"user_id," .
						"view_count," .
						"last_item" .
						")VALUES(" .
						"".$mylpid."," . //new learnpath id
						"".$row['user_id']."," . //user IDs stay the same
						"1," .
						"".$last."" . //use the first chapter from this learnpath
						")";
				//echo $sql_ins_view;
				$res_ins_view = api_sql_query($sql_ins_view,__FILE__,__LINE__);
				$in_id = Database::get_last_insert_id();
				$user_id = $row['user_id'];
				$learnpath_id = $row['learnpath_id'];
				$lp_view = $in_id;
			}
		}
		//insert the record into lp_item_view
		//TODO fix the whole in here (missing one item at least)
		$my_new_lp_item_id = $lp_items[$learnpath_id][$row['learnpath_item_id']];
		if(empty($my_new_lp_item_id)){
			//this can be ignored safely as it just means a user used a learnpath_item
			//before it was removed from items - maybe fix that in Dokeos?
			//echo "Somehow we miss lp_items[".$learnpath_id."][".$row['learnpath_item_id']."] here...<br/>";
			$incoherences ++;
		}else{
			$start_time = 0;
			$my_time = my_get_time($row['time']);
			if($my_time>0){
				$start_time = time()-$my_time;
			}
			$sql_ins_iv = "INSERT INTO $my_new_lp_item_view(" .
					"lp_item_id," .
				"lp_view_id," .
				"view_count," .
				"start_time," .
				"total_time," .
				"score," .
				"status" .
				")VALUES(" .
				"".$lp_items[$learnpath_id][$row['learnpath_item_id']]."," .
				"".$lp_view."," .
				"1," .
				"$start_time," .
				"".$my_time."," .
				"".$row['score']."," .
				"'".$row['status']."'" .
				")";
			//echo $sql_ins_iv;
			$res_ins_iv = api_sql_query($sql_ins_iv,__FILE__,__LINE__);
		}
        //UPDATE THE LP_VIEW progress
        $sql = "SELECT count(distinct(lp_item_id)) FROM $my_new_lp_item_view WHERE lp_view_id = ".$lp_view." AND status IN ('passed','completed','succeeded','browsed','failed')";
        $myres = api_sql_query($sql,__FILE__,__LINE__);
        $myrow = Database::fetch_array($myres);
        $completed = $myrow[0];
        $mylpid = $lp_ids[$row['learnpath_id']];
        $sql = "SELECT count(*) FROM $my_new_lp_item WHERE lp_id = '".$mylpid."'";
        $myres = api_sql_query($sql,__FILE__,__LINE__);
        $myrow = Database::fetch_array($myres);
        $total = $myrow[0];
    	$progress = ((float)$completed/(float)$total)*100;
    	$progress = number_format($progress,0);
		$sql = "UPDATE $my_new_lp_view SET progress = '$progress' WHERE id = '$lp_view'";
		$myres = api_sql_query($sql,__FILE__,__LINE__);
	}

	/**
	 * Move prerequisites
	 * TODO integrate prerequisites migration into learnpath_item migration
	 */

	$msg = '';
	if($incoherences>0){
		$msg = "(found $incoherences incoherences between views and items - ignored)";
	}
	/**
	 * Migrate links on the homepage as well now (look into the TABLE_TOOL_LIST table and
	 * update the links to newscorm/lp_controller.php?action=view&lp_id=x)
	 * Only normal learnpaths were visible from the homepage so we only need to update here
	 */
	//MIGRATING LEARNPATH LINKS ON COURSES HOMEPAGES
	$tbl_tool = $db.TABLE_TOOL_LIST;
	$sql_tool = "SELECT * FROM $tbl_tool WHERE image='scormbuilder.gif' AND link LIKE '%learnpath_handler%'";
	$res_tool = api_sql_query($sql_tool,__FILE__,__LINE__);
	while($row_tool = Database::fetch_array($res_tool)){
		$name = $row_tool['name'];
		$link = $row_tool['link'];
		//get old lp_id from there
		$matches = array();
		if(preg_match('/learnpath_id=(\d+)$/',$link,$matches)){
			$old_lp_id = $matches[1];
			$new_lp_id = $lp_ids[$old_lp_id];
			$sql_tool_upd = "UPDATE $tbl_tool " .
					"SET link='newscorm/lp_controller.php?action=view&lp_id=$new_lp_id' " .
					"WHERE id = ".$row_tool['id'];
			error_log('New LP - Migration - Updating tool table: '.$sql_tool_upd,0);
			//make sure there is a way of retrieving which links were updated (to revert)
			fwrite($fh,$sql_tool_upd." AND link ='$link'");
			fwrite($fh_revert,"UPDATE $tbl_tool SET link='$link' WHERE id=".$row_tool['id']." AND link ='newscorm/lp_controller.php?action=view&lp_id=$new_lp_id';\n");
			//echo $sql_tool_upd." (and link='$link')<br/>\n";
			$res_tool_upd = api_sql_query($sql_tool_upd,__FILE__,__LINE__);
		}
	}
	/**
	 * Update course description (intro page) to use new links instead of learnpath/learnpath_handler.php
	 */
	$tbl_intro = $db.TABLE_TOOL_INTRO;
	$sql_i = "SELECT * FROM $tbl_intro WHERE id='course_homepage'";
	$res_i = api_sql_query($sql_i,__FILE__,__LINE__);
	//$link_to_course1 = 'scorm/scormdocument.php'; 
	while($row_i = Database::fetch_array($res_i)){
		$intro = $row_i['intro_text'];
		$update = 0;
		$out = array();
		if(preg_match_all('/learnpath\/showinframes\.php([^\s"\']*)learnpath_id=(\d*)/',$intro,$out,PREG_SET_ORDER)){
			foreach($out as $results){
				//echo "---> replace ".'/learnpath\/showinframes\.php([^\s"\']*)learnpath_id='.$results[2].'/ by newscorm/lp_controller.php'.$results[1].'action=view&lp_id='.$lp_ids[$results[2]];
				$intro = preg_replace('/learnpath\/showinframes\.php([^\s"\']*)learnpath_id='.$results[2].'/','newscorm/lp_controller.php'.$results[1].'action=view&lp_id='.$lp_ids[$results[2]],$intro);
			}
		}
		if($intrp != $row_i['intro_text']){
			//echo "<pre>Replacing ".$row_i['intro_text']."\n by \n ".$intro."</pre><br/>\n";
			$sql_upd = "update $tbl_intro set intro_text = '".mysql_real_escape_string($intro)."' WHERE id = 'course_homepage' AND intro_text = '".mysql_real_escape_string($row_i['intro_text'])."'";
			//echo $sql_upd."<br/>\n";
			fwrite($fh,"$sql_upd\n");
			fwrite($fh_revert,"UPDATE $tbl_intro set intro_text = '".$row_i['intro_text']."' WHERE id = 'course_homepage' AND intro_text = '$intro';\n");
			fwrite($fh_res,"$intro\n");
			api_sql_query($sql_upd,__FILE__,__LINE__);
		}
	}
	
	
		
	if($loglevel>0){error_log("Done!".$msg,0);}
	//flush();
	//ob_flush();
}
unset($lp_ids);
unset($lp_users);
unset($parent_chaps);
unset($lp_chap_items);
unset($ordered_chaps);
unset($lp_items);
unset($lp_ordered_items);
unset($parent_lps);

fwrite($fh,"-- Recording course homepages links changes for SCORM to enable reverting\n");
fwrite($fh_revert,"-- Recording reverted course homepages links changes for SCORM to enable reverting\n");
fwrite($fh_res,"-- Recording resulting course homepages links changes for SCORM\n");

/**
 * SCORM
 * The migration needs to take all data from the scorm.scorm_main and scorm.scorm_sco_data tables
 * and add them to the new lp, lp_view, lp_item and lp_item_view tables.
 */
if($loglevel>0){error_log("Now starting migration of scorm tables from global SCORM database",0);}

$scorm_main = $dbScormForm.'.'.TABLE_SCORM_MAIN;
$scorm_item = $dbScormForm.'.'.TABLE_SCORM_SCO_DATA;
//$lp_main 	= Database::get_course_table(TABLE_LEARNPATH_MAIN,$db);
$course_pref = $table_prefix;
$lp_ids 	= array();
$lp_item_ids 	= array();
$lp_item_refs 	= array();
$lp_course = array();
$lp_course_code = array();
$scorm_lp_paths = array();

//avoid empty dokeosCourse fields as they potentially break the rest
mysql_select_db($dbNameForm);
$course_main = TABLE_MAIN_COURSE;
$sql_crs = "SELECT * FROM $course_main WHERE target_course_code IS NULL";
if($loglevel>0){error_log("$sql_crs",0);}
$res_crs = api_sql_query($sql_crs,__FILE__,__LINE__);
$num = Database::num_rows($res_crs);

//prepare an array that will contain course codes and for each course code a list of lps [by path prefixed by '/']
$scorms =array();
$course_code_swap = '';
$scormdocuments_lps = array();
while($course_row = Database::fetch_array($res_crs)){

	if($loglevel>0){error_log("Now dealing with course ".$course_row['code']."...",0);}
	//check the validity of this new course		
	$my_course_code = $course_row['code'];

	//reinit the scormdocuments list
	//$scormdocuments_lps = array();
	$db_name = $courses_id_full_table_prefix_list[$my_course_code];
	$tblscodoc = $db_name.TABLE_SCORMDOC;		
	$sql_scodoc = "SELECT path FROM $tblscodoc WHERE path IS NOT NULL AND path != ''";
	if($loglevel>1){error_log("$sql_scodoc",0);}
	$res_scodoc = api_sql_query($sql_scodoc,__FILE__,__LINE__);
	while($row_scodoc = Database::fetch_array($res_scodoc)){
		
		//check if there's more than one slash in total
		if(strpos($row_scodoc['path'],'/',1)===false){
			$tmp_path = $row_scodoc['path'];
			if($loglevel>1){error_log("++Now opening $tmp_path",0);}
			
			//add a prefixing slash if there is none
			if(substr($tmp_path,0,1)!='/'){
				$tmp_path = '/'.$tmp_path;
			}
			
			//if the path is just a slash, empty it
			if($tmp_path=='/'){
				$tmp_path='';
			}
			
			//there is only one 'slash' sign at the beginning, 
			//or none at all, so we assume
			//it is a main directory that should be taken as path
			$courses_dir = $sys_course_path.''.$courses_dir_list[$my_course_code].'/scorm'.$tmp_path;
			if(!is_dir($courses_dir)){
				//echo "Scormdocument path $my_content_id: $tmp_path doesn't exist in ".$sys_course_path.$courses_dir_list[$my_course_code]."/scorm, skipping<br/>\n";
				continue;
				//avoid if contentTitle is not the name of an existing directory
			}elseif(!is_file($courses_dir."/imsmanifest.xml")){
				//if the imsmanifest file was not found there
				if($loglevel>2){error_log("  !!imsmanifest.xml  not found at scormdocument's $courses_dir/imsmanifest.xml, skipping",0);}
				//try subdirectories on one level depth
				if($loglevel>2){error_log("  Trying subdirectories...",0);}
				$dh = opendir($courses_dir);
				while($entry = readdir($dh)){
					if(substr($entry,0,1)!='.'){
						if(is_dir($courses_dir."/".$entry)){
							if(is_file($courses_dir."/".$entry."/imsmanifest.xml")){
								if($loglevel>2){error_log(".  .. and found $courses_dir/$entry/imsmanifest.xml!",0);}
								if(!in_array($tmp_path."/".$entry."/imsmanifest.xml",$scormdocuments_lps)){
									if($loglevel>2){error_log("  Recording.<br/>",0);}
									$scormdocuments_lps[] = $tmp_path."/".$entry;
								}
							}
						}
					}
				}
			}else{
				if($loglevel>2){error_log("  Found scormdocument $tmp_path in ".$sys_course_path.$courses_dir_list[$my_course_code]."/scorm, treating it.",0);}
				$scormdocuments_lps[] = $tmp_path;
			}
		}
	}
	
	//prepare the new course's space in the scorms array
	$scorms[$my_course_code] = array();

	$sql_paths = "SELECT * FROM $scorm_main WHERE dokeosCourse = '".$my_course_code."'";
	if($loglevel>0){error_log("$sql_paths",0);}
	$res_paths = api_sql_query($sql_paths,__FILE__,__LINE__);
	$num = Database::num_rows($res_paths);
	while($scorm_row = Database::fetch_array($res_paths)){
		//check if this is a new course
		$my_content_id = $scorm_row['contentId'];
		$my_path = $scorm_row['contentTitle'];
		if(substr($my_path,0,1)!='/'){
			$my_path = '/'.$my_path;
		}
		if($my_path=='/'){
			$my_path='';
		}
		if($loglevel>1){error_log("++++Now opening $my_path",0);}
		if(!is_dir($courses_dir = $sys_course_path.''.$courses_dir_list[$my_course_code].'/scorm'.$my_path)){
			if($loglevel>1){error_log("Path $my_content_id: $my_path doesn't exist in ".$sys_course_path.$courses_dir_list[$my_course_code]."/scorm, skipping",0);}
			continue;
			//avoid if contentTitle is not the name of an existing directory
		}elseif(!is_file($sys_course_path.$courses_dir_list[$my_course_code].'/scorm'.$my_path."/imsmanifest.xml")){
			if($loglevel>1){error_log("!!imsmanifest.xml not found at ".$sys_course_path.$courses_dir_list[$my_course_code].'/scorm'.$my_path."/imsmanifest.xml, skipping",0);}
			continue;
		}else{
			if($loglevel>1){error_log("Found $my_path in ".$sys_course_path.$courses_dir_list[$my_course_code]."/scorm".$mypath."/imsmanifest.xml, keeping it.",0);}
			$scorms[$my_course_code][$my_path] = $my_content_id;
		}
	}
	//check if all the lps from scormdocuments_lps are already in the course array, 
	//otherwise add them (and set ID of 0 so no tracking will be available)
	foreach($scormdocuments_lps as $path){
		if(!in_array($path,array_keys($scorms[$my_course_code]))){
			//add it (-1 means no ID)
			if($loglevel>1){error_log("** Scormdocument path $path wasn't recorded yet. Added.",0);}
			$scorms[$my_course_code][$path] = -1;
		}
	}
	$course_code_swap = $my_course_code;
	unset($scormdocuments_lps);
}

//echo "<pre>courses_id_list: ".print_r($courses_id_list,true)."</pre>\n";

$my_count = 0;
foreach($scorms as $mycourse => $my_paths){
	$my_count += count($my_paths);
}
if($loglevel>0){error_log("---- Scorms array now contains ".$mycount." paths to migrate. Starting migration...",0);}

/**
 * Looping through the SCO_MAIN table for SCORM learnpath attached to courses
 * Order by course to try and reuse the maximum data
 */
$i_count = 0;
foreach($scorms as $my_course_code => $paths_list )
{
  $max_dsp_lp = 0;
  $course_lp_done = array();
  $db_name = $courses_id_full_table_prefix_list[$my_course_code];
  foreach($paths_list as $my_path => $old_id){
  	if($loglevel>1){error_log("Migrating lp $my_path from course $my_course_code...",0);}
	$i_count ++;
	//error_log('New LP - Migration script - Content '.$i_count.' on '.$num.' (course '.$scorm['dokeosCourse'].')',0);
	//check if there is no embedded learnpaths into other learnpaths (one root-level and another embedded)
	$embedded = false;
	foreach($course_lp_done as $tmp_lp){
		if(empty($tmp_lp)){
			$tmp_lp = '/'; //allows finding the lp as a subitem, otherwise strstr returns false
		}
		if(strstr($my_path,$tmp_lp)===false){
			//let it be
		}else{
			//this lp is embedded inside another lp who's imsmanifest exists, so prevent from parsing
			if($loglevel>1){error_log("LP $my_path is embedded into $tmp_lp, ignoring...",0);}
			$embedded = true;
			continue;
		}
	}
	if($embedded){
		continue;
	}
	$course_lp_done[] = $my_path;
	//echo "<pre>scorm row: ".print_r($scorm,true)."</pre>\n";
	$my_content_id = $old_id;
	$my_path = $my_path;
	$my_name = basename($my_path);
	
	if($loglevel>1){error_log("Try importing LP $my_path from imsmanifest first as it is more reliable",0);}

	//Setup the ims path (path to the imsmanifest.xml file)
	//echo "Looking for course with code ".$lp_course_code[$my_content_id]." (using $my_content_id)<br />\n";
	$courses_dir = $sys_course_path.$courses_dir_list[$my_course_code];
	$sco_path_temp = ($my_path=='/')?'':$my_path;
	$sco_middle_path = (empty($sco_path_temp)?'':(substr($sco_path_temp,0,1)=='/')?substr($sco_path_temp,1).'/':$sco_path_temp.'/'); //same thing as sco_path_temp but with reversed slashes
	$ims = $courses_dir.'/scorm'.$sco_path_temp.'/imsmanifest.xml'; 

	if(is_file($ims)){
		$oScorm = new scorm();
		//check if imsmanifest.xml exists at this location. If not, ignore the imsmanifest.
		//That should have been done before already, now.
		if($loglevel>1){error_log("Found imsmanifest ($ims), importing...",0);}
		if(!empty($sco_middle_path)){$oScorm->subdir = $sco_middle_path;} //this sets the subdir for the scorm package inside the scorm dir
		//parse manifest file
		$manifest = $oScorm->parse_manifest($ims);
		//the title is already escaped in the method
		$oScorm->import_manifest($my_course_code);
		//TODO add code to update the path in that new lp created, as it probably uses / where
		//$sco_path_temp should be used... 
		$lp_ids[$my_content_id] = $oScorm->lp_id; //contains the old LP ID => the new LP ID
		if($loglevel>1){error_log(" @@@ Created scorm lp ".$oScorm->lp_id." from imsmanifest [".$ims."] in course $my_course_code",0);}
		$lp_course[$my_content_id] = $courses_id_list[$my_course_code]; //contains the old learnpath ID => the course DB name
		$lp_course_code[$my_content_id] = $my_course_code;
		$max_dsp_lp++;

		/*
		 * QUERY SCORM ITEMS FROM SCORM_SCO_DATA
		 * The danger here is that we might have several users for the same data, and so
		 * we have to avoid entering the same elements twice
		 */
		$sql_items = "SELECT * FROM $scorm_item WHERE contentId = '".$my_content_id."' ORDER BY scoId";
		//echo "$sql_items<br />\n";
		$res_items = api_sql_query($sql_items,__FILE__,__LINE__);
		while($scormItem = Database::fetch_array($res_items))
		{
			$my_sco_id 		= $scormItem['scoId']; //the index for display??? (check that)
			$my_identifier	= $scormItem['scoIdentifier']; //the scorm item path/name
			$my_title		= mysql_real_escape_string($scormItem['scoTitle']);
			$my_status		= $scormItem['status'];
			$my_student		= $scormItem['studentId'];
			$my_score		= $scormItem['score'];
			$my_time		= my_get_time($scormItem['time']);
			$my_type		= 'sco';
			//$my_item_path	= $scorm_lp_paths[$my_content_id]['path'];
			$my_item_path 	= '';
			
			//echo "&nbsp;&nbsp;FOUND item belonging to old learnpath num $my_content_id so belongs to course ".$lp_course[$my_content_id]."<br />\n";
			$my_new_lp_item = $db_name.$new_lp_item;	
			$my_new_lp_view = $db_name.$new_lp_view;	
			$my_new_lp_item_view = $db_name.$new_lp_item_view;	

			/*
			 * Check if a view is needed
			 */
			if($my_score != '' and $my_status != 'not attempted'){
				//it is worth creating an lp_view and an lp_item_view - otherwise not
				$sel_sqlb = "SELECT * FROM $my_new_lp_view " .
						"WHERE lp_id = ".$lp_ids[$my_content_id]." AND user_id = $my_student";
				$sel_resb = api_sql_query($sel_sqlb,__FILE__,__LINE__);
				if(Database::num_rows($sel_resb)>0){
					//dont insert
					$rowb = Database::fetch_array($sel_resb);
					$view_insert_id = $rowb['id'];
				}else{
					$ins_sql = "INSERT INTO $my_new_lp_view (" .
						"lp_id," .
						"user_id," .
						"view_count" .
						") VALUES (" .
						$lp_ids[$my_content_id].", " .
						$my_student.", " .
						"1" .
						")";
					//echo "$ins_sql<br/>";
					$ins_res = api_sql_query($ins_sql,__FILE__,__LINE__);
					$view_insert_id = Database::get_last_insert_id();
				}
				$sel_sqlc = "SELECT * FROM $my_new_lp_item " .
						"WHERE lp_id = ".$lp_ids[$my_content_id]." AND ref = '$my_identifier'";
				$sel_resc = api_sql_query($sel_sqlc,__FILE__,__LINE__);
				if(Database::num_rows($sel_resc)>0){
					$my_item_id_row = Database::fetch_array($sel_resc);
					$item_insert_id = $my_item_id_row['id'];
					$ins_sql = "INSERT INTO $my_new_lp_item_view (" .
							"lp_item_id, lp_view_id, view_count," .
							"start_time, total_time, score," .
							"status" .
							") VALUES (" .
							"$item_insert_id, $view_insert_id, 1," .
							"0, $my_time, $my_score," .
							"'$my_status'" .
							")";
					//echo "$ins_sql<br/>";
					$ins_res = api_sql_query($ins_sql,__FILE__,__LINE__);
				}else{
					//echo "  Didn't find corresponding item for $my_identifier in new tables<br/>\n";
				}
			}
		}

	}		
	else{
		if($loglevel>1){error_log("This is a normal SCORM path",0);}
		$scorm_lp_paths[$my_content_id]['path'] = $my_path;
		//$scorm_lp_paths[$my_content_id]['ims'] = '';
		$table_name = $db_name.$new_lp;
		$sql_ins = "INSERT INTO $table_name (" .
				"lp_type," .
				"name," .
				"description," .
				"path," .
				"force_commit, " .
				"default_encoding," .
				"display_order," .
				"content_maker," .
				"content_local," .
				"js_lib" .
				") VALUES (" .
				"2," .
				"'$my_name'," .
				"''," .
				"'$my_path'," .
				"0," .
				"'UTF-8'," .
				"".$max_dsp_lp."," .
				"'Unknown'," .
				"'Unknown'," .
				"'scorm_api.php'" .
				")";
		if($loglevel>1){error_log("$sql_ins",0);}
		$sql_res = api_sql_query($sql_ins,__FILE__,__LINE__);
		$in_id = Database::get_last_insert_id();
		if(empty($in_id) or $in_id == false) die('Could not insert scorm lp: '.$sql_ins);
		//echo "&nbsp;&nbsp;Inserted item $in_id<br />\n";
		$lp_ids[$my_content_id] = $in_id; //contains the old LP ID => the new LP ID
		$lp_course[$my_content_id] = $courses_id_list[$my_course_code]; //contains the old learnpath ID => the course DB name
		$lp_course_code[$my_content_id] = $my_course_code;
		$max_dsp_lp++;
	
		//Setup the ims path (path to the imsmanifest.xml file)
		//echo "Looking for course with code ".$lp_course_code[$my_content_id]." (using $my_content_id)<br />\n";
		$courses_dir = $sys_course_path.$courses_dir_list[$lp_course_code[$my_content_id]];
		//$scorm_lp_paths[$my_content_id]['path'] = str_replace(' ','\\ ',$scorm_lp_paths[$my_content_id]['path']);
		$sco_path_temp = ($scorm_lp_paths[$my_content_id]['path']=='/')?'':$scorm_lp_paths[$my_content_id]['path'];
		$scorm_lp_paths[$my_content_id]['ims'] = $courses_dir.'/scorm'.$sco_path_temp.'/imsmanifest.xml'; 
		
		//generate an imsmanifest object to get more info about the learnpath from the file
		$oScorm = new scorm();
		//check if imsmanifest.xml exists at this location. If not, ignore the imsmanifest.
		//That should have been done before already, now.
		if(!is_file($scorm_lp_paths[$my_content_id]['ims'])){
			if($loglevel>1){error_log("!!! imsmanifest file not found at ".$scorm_lp_paths[$my_content_id]['ims'].' for old lp '.$my_content_id.' and new '.$lp_ids[$my_content_id],0);}
			$manifest = false;
		}else{
			//echo "Parsing ".$scorm_lp_paths[$my_content_id]['ims']."<br>\n";
			//parse manifest file
			$manifest = $oScorm->parse_manifest($scorm_lp_paths[$my_content_id]['ims']);
			//the title is already escaped in the method
			//$my_lp_title = mb_convert_encoding($oScorm->get_title(),'ISO-8859-1',$oScorm->manifest_encoding);
			$my_lp_title = mb_convert_encoding($oScorm->get_title(),'ISO-8859-1','UTF-8');
			if(!empty($my_lp_title)){
				$my_new_lp = $db_name.$new_lp;	
				$my_sql = "UPDATE $my_new_lp " .
						"SET name = '$my_lp_title', " .
						"default_encoding = '".strtoupper($oScorm->manifest_encoding)."' " .
						"WHERE id = ".$lp_ids[$my_content_id];
				if($loglevel>1){error_log("Updating title and encoding: ".$my_sql,0);}
				$my_res = api_sql_query($my_sql,__FILE__,__LINE__);	
			}
		}
	
		/*
		 * QUERY SCORM ITEMS FROM SCORM_SCO_DATA
		 * The danger here is that we might have several users for the same data, and so
		 * we have to avoid entering the same elements twice
		 */
		$sql_items = "SELECT * FROM $scorm_item WHERE contentId = '".$my_content_id."' ORDER BY scoId";
		//echo "$sql_items<br />\n";
		$res_items = api_sql_query($sql_items,__FILE__,__LINE__);
		while($scormItem = Database::fetch_array($res_items))
		{
			$my_sco_id 		= $scormItem['scoId']; //the index for display??? (check that)
			$my_identifier	= $scormItem['scoIdentifier']; //the scorm item path/name
			$my_title		= mysql_real_escape_string($scormItem['scoTitle']);
			$my_status		= $scormItem['status'];
			$my_student		= $scormItem['studentId'];
			$my_score		= $scormItem['score'];
			$my_time		= my_get_time($scormItem['time']);
			$my_type		= 'sco';
			//$my_item_path	= $scorm_lp_paths[$my_content_id]['path'];
			$my_item_path 	= '';
			
			//echo "&nbsp;&nbsp;FOUND item belonging to old learnpath num $my_content_id so belongs to course ".$lp_course[$my_content_id]."<br />\n";
			$my_new_lp_item = $db_name.$new_lp_item;	
			$my_new_lp_view = $db_name.$new_lp_view;	
			$my_new_lp_item_view = $db_name.$new_lp_item_view;	
			
			/*
			 * Query items from the new table to check if it doesn't exist already
			 * Otherwise insert it
			 */
			$sel_sql = "SELECT * FROM $my_new_lp_item " .
					"WHERE ref = '$my_identifier' " .
					"AND lp_id = ".$lp_ids[$my_content_id]."";
			//echo $sel_sql."<br />\n";
			$sel_res = api_sql_query($sel_sql,__FILE__,__LINE__);
			if(Database::num_rows($sel_res)>0){
				//this item already exists, reuse
				$row = Database::fetch_array($sel_res);
				$item_insert_id = $row['lp_id'];
			}else{
				$ins_sql = "INSERT INTO $my_new_lp_item (" .
					"lp_id," .
					"item_type," .
					"ref," .
					"title," .
					"path" .
					") " .
					"VALUES (" .
					"'".$lp_ids[$my_content_id]."'," . //insert new learnpath ID
					"'$my_type'," .
					"'".$my_identifier."'," .
					"'".$my_title."'," .
					"'$my_item_path'" .
					")";
				$ins_res = api_sql_query($ins_sql,__FILE__,__LINE__);
				$item_insert_id = Database::get_last_insert_id();
				$lp_item_ids[$lp_ids[$my_content_id]][$my_sco_id]=$item_insert_id;
				$lp_item_refs[$lp_ids[$my_content_id]][$my_identifier]=$item_insert_id;
			}
			/*
			 * Check if a view is needed
			 */
			if($my_score != '' and $my_status != 'not attempted'){
				//it is worth creating an lp_view and an lp_item_view - otherwise not
				$sel_sqlb = "SELECT * FROM $my_new_lp_view " .
						"WHERE lp_id = ".$lp_ids[$my_content_id]." AND user_id = $my_student";
				$sel_resb = api_sql_query($sel_sqlb,__FILE__,__LINE__);
				if(Database::num_rows($sel_resb)>0){
					//dont insert
					$rowb = Database::fetch_array($sel_resb);
					$view_insert_id = $rowb['id'];
				}else{
					$ins_sql = "INSERT INTO $my_new_lp_view (" .
						"lp_id," .
						"user_id," .
						"view_count" .
						") VALUES (" .
						$lp_ids[$my_content_id].", " .
						$my_student.", " .
						"1" .
						")";
					$ins_res = api_sql_query($ins_sql,__FILE__,__LINE__);
					$view_insert_id = Database::get_last_insert_id();
				}
				$ins_sql = "INSERT INTO $my_new_lp_item_view (" .
						"lp_item_id, lp_view_id, view_count," .
						"start_time, total_time, score," .
						"status" .
						") VALUES (" .
						"$item_insert_id, $view_insert_id, 1," .
						"0, $my_time, $my_score," .
						"'$my_status'" .
						")";
				$ins_res = api_sql_query($ins_sql,__FILE__,__LINE__);
			}
		}
        //UPDATE THE LP_VIEW progress
        $sql = "SELECT count(distinct(lp_item_id)) FROM $my_new_lp_item_view WHERE lp_view_id = ".$view_insert_id." AND status IN ('passed','completed','succeeded','browsed','failed')";
        $myres = api_sql_query($sql,__FILE__,__LINE__);
        $myrow = Database::fetch_array($myres);
        $completed = $myrow[0];
        $mylpid = $lp_ids[$my_content_id];
        $sql = "SELECT count(*) FROM $my_new_lp_item WHERE lp_id = '".$mylpid."'";
        $myres = api_sql_query($sql,__FILE__,__LINE__);
        $myrow = Database::fetch_array($myres);
        $total = $myrow[0];
    	$progress = ((float)$completed/(float)$total)*100;
    	$progress = number_format($progress,0);
		$sql = "UPDATE $my_new_lp_view SET progress = '$progress' WHERE id = '$view_insert_id'";
		$myres = api_sql_query($sql,__FILE__,__LINE__);


		/*
		 * Set all information that might be more correct coming from imsmanifest
		 */
		
		//$my_new_lp = $db_name.$new_lp;
		//$my_new_lp_item = $db_name.$new_lp_item;	
		//$my_new_lp_view = $db_name.$new_lp_view;	
		//$my_new_lp_item_view = $db_name.$new_lp_item_view;	
		//$sel_sql = "SELECT * FROM $my_new_lp WHERE id = $in_id";
		//$res = @mysql_query($sel_sql);
		//if(!$res){
		//	echo "Error selecting lp: $sel_sql - ".mysql_error()."<br />\n";
		//}
		$lp_details = array();
		//while($row = Database::fetch_array($res))
		//{
			$ordered_list = array();
			$mylist = array();
			foreach($oScorm->organizations as $org){
				//There should be only one organization (generally)
				//and if there are more, we are not supposed to have been
				//able to manage them before the new tool, so ignore
				if(count($ordered_list)>0){
					break;
				}
				$ordered_list = $org->get_flat_items_list();
			}
			$previous = 0;
			$stock = array(0);
			$level=0;
			$parent_id = 0;
			foreach($ordered_list as $index => $subarray)
			{
				//$subarray is an array representing one item and that contains info like
				//identifier, level, rel_order, prerequisites, title, masteryscore, etc.
				//echo "<pre>Lookin for ".$subarray['identifier']." ".print_r($lp_item_refs,true)."</pre>\n";
				if(!empty($lp_item_refs[$in_id][$subarray['identifier']])){
					$new_id = $lp_item_refs[$in_id][$subarray['identifier']];
					$next = 0;
					$dsp = $subarray['rel_order'];
					if($subarray['level']>$level){	
						//getting one level deeper, just consult
						$parent_id = $previous;
						array_push($stock,$previous);
						$level = $subarray['level'];
					}elseif($subarray['level']==$level){
						//we are on the same level, going to the next id
						//array_pop($stock);
						//array_push($stock,$new_id);
					}else{
						//getting back from one level deeper
						array_pop($stock);
						$parent_id = array_pop($stock);
						array_push($stock,$parent_id);
						$level = $subarray['level'];
					}
					if(!empty($ordered_list[$index+1]['identifier']) && !empty($lp_item_refs[$in_id][$ordered_list[$index+1]['identifier']])){
						$next		= $lp_item_refs[$in_id][$ordered_list[$index+1]['identifier']];
					}
					$path = $oScorm->get_res_path($subarray['identifierref']);
					$update_path = '';
					if(!empty($path)){
						//if new path is not empty, update
						$update_path = "path = '$path', ";
					}
					$type = $oScorm->get_res_type($subarray['identifierref']);
					$update_type = '';
					if(!empty($type)){
						//if type is defined, update
						$update_type = "item_type = '$type', ";
					}
					if(empty($path)){
						//if path is empty, it is a dir anyway
						$update_type = "item_type = 'dir', ";
					}
					$prereq = $subarray['prerequisites'];
					$update_prereq = '';
					if(!empty($prereq)){
						$update_prereq = "prerequisite = '$prereq', ";
					}
					
					//we had previous data about this element, update
					$sql2 = "UPDATE $my_new_lp_item " .
							"SET parent_item_id = $parent_id, " .
							"previous_item_id = $previous, " .
							"next_item_id = $next, " .
							$update_path.
							$update_type.
							$update_prereq.
							"display_order = $dsp " .
							"WHERE lp_id = ".$in_id." AND id = ".$new_id;
					//echo "$sql2<br>\n";
					$res2 = api_sql_query($sql2,__FILE__,__LINE__);
					$previous = $new_id;
				}
			}
			/**
			 * Migrate links on the homepage as well now (look into the TABLE_TOOL_LIST table and
			 * update the links to newscorm/lp_controller.php?action=view&lp_id=x)
			 * See scorm_migrate_hometools.php
			 */
		//}
	//end of case where $my_content_id != -1

	}

	/**
	 * Update course description (intro page) to use new links instead of learnpath/learnpath_handler.php
	 */
	$tbl_intro = $db_name.TABLE_TOOL_INTRO;
	$sql_i = "SELECT * FROM $tbl_intro WHERE id='course_homepage'";
	$res_i = api_sql_query($sql_i,__FILE__,__LINE__);
	//$link_to_course1 = 'scorm/scormdocument.php'; 
	while($row_i = Database::fetch_array($res_i)){
		$intro = $row_i['intro_text'];
		$out = array();
		$enc_path = str_replace('/','%2F',$my_path);
		$enc_path = str_replace(' ','\+',$enc_path);
		//echo "Looking for path ".$enc_path."<br>\n";
		$pattern = ';scorm/scormdocument\.php([^\s"\']*)openDir='.$enc_path.'([\\"\'\s&]*);';
		if(preg_match_all($pattern,$intro,$out,PREG_SET_ORDER)){
			foreach($out as $results){
				//echo "---> replace ".'/'.$results[0].'/ by newscorm/lp_controller.php'.$results[1].'action=view&lp_id='.$lp_ids[$my_content_id];
				//$intro = preg_replace('/scorm\/scormdocument\.php([^\s"\']*)openDir='.$enc_path.'([\\"\'\s&])/','newscorm/lp_controller.php'.$results[1].'action=view&lp_id='.$lp_ids[$my_content_id],$intro);
				$intro = preg_replace(';scorm/scormdocument\.php([^\s"\']*)openDir='.$enc_path.'([^\s"\']*);','newscorm/lp_controller.php'.$results[1].'action=view&lp_id='.$lp_ids[$my_content_id],$intro);
			}
		}else{
			//echo "No scorm link found in intro text<br/>";
		}
		$pattern = ';scorm/showinframes\.php([^\s"\']*)file=([^\s"\'&]*)'.$enc_path.';';
		if(preg_match_all($pattern,$intro,$out,PREG_SET_ORDER)){
			foreach($out as $results){
				//echo "---> replace ".'/'.$results[0].'/ by newscorm/lp_controller.php'.$results[1].'action=view&lp_id='.$lp_ids[$my_content_id];
				//$intro = preg_replace('/scorm\/showinframes\.php([^\s"\']*)file=([^\s"\']*)'.$enc_path.'/','newscorm/lp_controller.php'.$results[1].'action=view&lp_id='.$lp_ids[$my_content_id],$intro);
				$intro = preg_replace(';scorm/showinframes\.php([^\s"\']*)file=([^\s"\'&]*)'.$enc_path.'([^\s"\']*);','newscorm/lp_controller.php'.$results[1].'action=view&lp_id='.$lp_ids[$my_content_id],$intro);
			}
		}else{
			//echo "No scorm link found in intro text<br/>";
		}
		if($intro != $row_i['intro_text']){
			//echo "<pre>Replacing ".$row_i['intro_text']."\n by \n ".$intro."</pre><br/>\n";
			$sql_upd = "update $tbl_intro set intro_text = '".mysql_real_escape_string($intro)."' WHERE id = 'course_homepage' AND intro_text = '".mysql_real_escape_string($row_i['intro_text'])."'";
			//echo $sql_upd."<br/>\n";
			fwrite($fh,$sql_upd."\n");
			fwrite($fh_revert,"UPDATE $tbl_intro set intro_text = '".$row_i['intro_text']."' WHERE id = 'course_homepage' AND intro_text = '$intro';\n");
			fwrite($fh_res,$intro."\n");
			api_sql_query($sql_upd,__FILE__,__LINE__);
		}
	}

	flush();
  }
}
fclose($fh);
fclose($fh_revert);
fclose($fh_res);
if($loglevel>0){error_log("All done!",0);}
//echo "</body></html>";
?>