#!/usr/bin/php
<?php

// Embed content into HTML file
function embed($filename, $mode, $find, $sourcefile) {
	$html_content = file_get_contents($filename);
	$modes = [
		'js' => ['script', 'script'],
		'css' => ['link', 'style'],
	];
	
	$html_content = preg_replace_callback(
		'~<'. $modes[$mode][0] .'[^>]+'.$find.'[^>]*>~',
		function() use ($modes, $mode, $sourcefile) {
			return '<'. $modes[$mode][1] . '>'.file_get_contents($sourcefile).'</'. $modes[$mode][1] .'>';
		},
		$html_content
	);
	
	file_put_contents($filename, $html_content);
}

embed($_SERVER['argv'][1], $_SERVER['argv'][2], $_SERVER['argv'][3], $_SERVER['argv'][4]);