<?php
/**
 * Class Minify_Controller_Files 
 * @package Minify
 */

/**
 * Controller class for minifying a set of files
 * 
 * E.g. the following would serve the minified Javascript for a site
 * <code>
 * Minify::serve('Files', array(
 * 'files' => array(
 * '//js/jquery.js'
 * ,'//js/plugins.js'
 * ,'/home/username/file.js'
 * )
 * ));
 * </code>
 * 
 * As a shortcut, the controller will replace "//" at the beginning
 * of a filename with $_SERVER['DOCUMENT_ROOT'] . '/'.
 *
 * @package Minify
 * @author Stephen Clay <steve@mrclay.org>
 */
class Minify_Controller_Files extends Minify_Controller_Base {
 
 /**
 * Set up file sources
 * 
 * @param array $options controller and Minify options
 * @return array Minify options
 * 
 * Controller options:
 * 
 * 'files': (required) array of complete file paths, or a single path
 */
 public function setupSources($options) {
 // strip controller options
 
 $files = $options['files'];
 // if $files is a single object, casting will break it
 if (is_object($files)) {
 $files = array($files);
 } elseif (! is_array($files)) {
 $files = (array)$files;
 }
 unset($options['files']);
 
 $sources = array();
 foreach ($files as $file) {
 if ($file instanceof Minify_Source) {
 $sources[] = $file;
 continue;
 }
 if (0 === strpos($file, '//')) {
 $file = $_SERVER['DOCUMENT_ROOT'] . substr($file, 1);
 }
 $realPath = realpath($file);
 if (is_file($realPath)) {
 $sources[] = new Minify_Source(array(
 'filepath' => $realPath
 )); 
 } else {
 $this->log("The path \"{$file}\" could not be found (or was not a file)");
 return $options;
 }
 }
 if ($sources) {
 $this->sources = $sources;
 }
 return $options;
 }
}