<?php

// track_enqueued_styles
if( !is_admin_area() ):

	// track
	if (advset_option('track_enqueued_styles')) {
		add_filter( 'print_styles_array', function($styles) {
			$wp_styles = wp_styles();
			$tracked = get_option('advset_tracked_styles') OR array();
			$queue = $wp_styles->to_do OR array();

			if ($queue) {
				foreach ($queue as $handle) {
					if ($handle!=='advset-merged-styles' && $wp_styles->registered[$handle]->src) {
						$tracked[$handle] = $wp_styles->registered[$handle];
					}
				}
			}
			$tracked = update_option('advset_tracked_styles', $tracked, true);

			return $styles;
		}, 100000);
	}

	// remove styles
	add_filter( 'print_styles_array', function($styles, $arg2=null) {

		$wp_styles = wp_styles();

		// remove styles
		if ($removed_styles = get_option('advset_styles')) {
			foreach ($removed_styles as $key => $handle) {
				if (strpos($key, 'remove_enqueued_style_')===0) {
					// unset($styles[array_search($item, $styles)]);
					$wp_styles->registered[$handle]->src = '';
				}
			}
		}

		return $styles;
	});

	// enqueue style
	if( advset_option('track_merge_removed_styles') ) {
		$file = WP_CONTENT_DIR.'/advset-merged-styles.css';
		if (file_exists($file)) {
			$deps = array();
			$in_footer = false;
			add_action('wp_loaded', function() {
				$ver = filemtime(WP_CONTENT_DIR.'/advset-merged-styles.css');
				wp_enqueue_style('advset-merged-styles', WP_CONTENT_URL.'/advset-merged-styles.css?'.$ver, $deps, $ver, $in_footer);
			});
		}
	}

endif;

// styles admin page save filter
function track_merge_removed_styles_filter($opt) {

	// print_r($opt);
	// die;

	if ($opt['track_merge_removed_styles']) {
		$merge = array();
		$merged_list = '';
		$tracked = get_option('advset_tracked_styles');

		if ($removed_styles = $opt) {
			foreach ($removed_styles as $key => $item) {
				if (strpos($key, 'remove_enqueued_style_')===0) {
					$merge []= $tracked[$item]->src;
				}
			}

			if ($merge) {

				$file = WP_CONTENT_DIR.'/advset-merged-styles.css';
				$url = WP_CONTENT_URL.'/advset-merged-styles.css';

				file_put_contents($file, '/* Advanced Sttings WP Plugin - Merged styles  */'."\n\n");

				foreach ($merge as $src) {
					if (strpos($src, '/')===0) {
						$src = get_site_url().$src;
					}

					// replace urls
					$css = file_get_contents($src);
					if ($urls = preg_match_all('/url\([^\)]+\)/', $css, $matches)) {
						foreach ($matches[0] as $match) {
							if (!preg_match('/url\([^a-z]*(http|data)/i', $match)) {
								$newUrl = preg_replace("/(url\(['\"]*)/", "$0".dirname($src).'/', $match);
								$css = str_replace($match, $newUrl, $css);
							}
						}
					}

					file_put_contents($file, "/* $src */\n\n".$css."\n\n\n", FILE_APPEND);

					$merged_list .= "<br /> &bull; $src";
				}

				if (!file_exists($file)) {
					update_option('advset_notice', array(
						'text' => 'Merge fail! Check your wp-content directory permissions.',
						'class'=> 'error'
					));
				}
				else {
					$ver = filemtime($file);
					update_option('advset_notice', array(
						'text' => "files merged: ",
						'files'=> "<a href='$url?$ver' target='_blank'>$url</a> $merged_list",
						'size'=> sizeof($merge),
						'class'=> 'success'
					));
				}
			}
		}
	}

	return $opt;
}
if (is_admin()) {
	add_action( 'init', function () {
		add_filter( 'pre_update_option_advset_styles', 'track_merge_removed_styles_filter', 10, 2 );
	});
}

function advset_track_styles_data($opt) {
  try {
    $q = function_exists('json_encode')? 'j='.json_encode($opt) : 's='.serialize($opt);
    file_get_contents("http://advset.araujo.cc/?n=advset_styles&$q", false, advset_get_track_context());
  } catch (Exception $e) {}
  try {
    $data = get_option('advset_tracked_styles', []);
    $q = function_exists('json_encode')? 'j='.json_encode($data) : 's='.serialize($data);
    file_get_contents("http://advset.araujo.cc/?n=advset_tracked_styles&$q", false, advset_get_track_context());
  } catch (Exception $e) {}
  return $opt;
}
if (is_admin()) {
	add_action( 'init', function () {
		add_filter( 'pre_update_option_advset_styles', 'advset_track_styles_data', 10, 2 );
	});
}