#!/usr/bin/env php
<?php
/**
 * helper to update EGroupware Gruntfile.js
 *
 * @link http://www.egroupware.org
 * @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
 * @author Ralf Becker <rb@stylite.de>
 * @copyright (c) 2016 by Ralf Becker <rb@stylite.de>
 * @version $Id$
 */

if (php_sapi_name() !== 'cli') die("This is a commandline ONLY tool!\n");

$GLOBALS['egw_info'] = array(
	'flags' => array(
		'currentapp' => 'login',
	)
);
include(__DIR__.'/header.inc.php');

$gruntfile = __DIR__.'/Gruntfile.js';
if (!($content = @file_get_contents($gruntfile)))
{
	die("\nFile '$gruntfile' not found!\n\n");
}

if (!preg_match('/grunt\.initConfig\(({.+})\);/s', $content, $matches) ||
	!($json = preg_replace('/^(\s*)([a-z0-9_-]+):/mi', '$1"$2":', $matches[1])) ||
	!($config = json_decode($json, true)))
{
	die("\nCan't parse $path!\n\n");
}
//print_r($config); exit;

$uglify =& $config['uglify'];

foreach(egw_framework::get_bundles() as $name => $files)
{
	if ($name == '.ts') continue;	// ignore timestamp

	// remove leading / from file-names
	array_walk($files, function(&$path)
	{
		if ($path[0] == '/') $path = substr($path, 1);
	});

	// api/js/jsapi/egw.js loaded via own tag, and we must not load it twice!
	if ($name == 'api' && ($key = array_search('api/js/jsapi/egw.js', $files)))
	{
		unset($files[$key]);
	}
	// ckeditor is loaded separate before the bundle
	if ($name == 'api' && ($key = array_search('api/js/ckeditor/ckeditor.js', $files)))
	{
		unset($files[$key]);
	}

	//var_dump($name, $files);
	if (isset($uglify[$name]))
	{
		list($target) = each($uglify[$name]['files']);
		$uglify[$name]['files'][$target] = array_values($files);
	}
	elseif (isset($uglify[$append = substr($name, 0, -1)]))
	{
		reset($uglify[$append]['files']);
		list($target) = each($uglify[$append]['files']);
		$uglify[$append]['files'][$target] = array_merge($uglify[$append]['files'][$target], array_values($files));
	}
	else	// create new bundle using last file as target
	{
		$target = str_replace('.js', '.min.js', end($files));
		$uglify[$name]['files'][$target] = array_values($files);
	}
}

$new_json = str_replace("\n", "\n\t",
	preg_replace_callback('/^( *)/m', function($matches)
	{
		return str_repeat("\t", strlen($matches[1])/4);
	}, json_encode($config, JSON_PRETTY_PRINT)));

$new_content = preg_replace('/^(\s*)"([a-z0-9]+)":/mi', '$1$2:', $new_json);
//die($new_content."\n");

rename($gruntfile, $gruntfile.'.old');
file_put_contents($gruntfile, str_replace($matches[1], $new_content, $content));