<?php
$class_path = dirname(__FILE__).'/classes/';


add_theme_support( 'automatic-feed-links' );

/***
 UTILITY FUNCTIONS
---------------------------------------------------------------------------- */


/* Simplified debug! Notice: It seems this is a popular shortened debug function name.. ! */
	if(!function_exists('dbg')){
		function dbg($msg, $hr = false){
			echo 'dbg: '.print_r($msg, true).($hr ? '<hr>' : '<br>');
		}
	}

/* Save a settings - multiplurally */
	function add_sircontheme_settings($array_key_val){
		foreach($array_key_val as $key => $val){
			add_sircontheme_setting($key, $val);
		}
	}

/* Save a setting */
	function add_sircontheme_setting($key, $val){
		global $sircontheme_settings;
		$sircontheme_settings[$key] = $val;
	}

/* Fetch a setting */
	function get_sircontheme_setting($key){
		global $sircontheme_settings;
		if(isset($sircontheme_settings[$key])){
			return $sircontheme_settings[$key];
		}
		return false;
	}


/* Are we on https:// ? */
	function is_https(){ 
		if ( (!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off') || $_SERVER['SERVER_PORT'] == 443) 
			return true; 
		else 
			return false; 
	}


/* Is the current user logged in as "sircon" ? */
	if(!function_exists('is_user_sircon')){
		function is_user_sircon() {
			if(!is_user_logged_in || !current_user_can('manage_options')){
				return false;
			}
			$current_user = wp_get_current_user();
			return ($current_user->user_login == 'sircon');
		}
	}

/* Get real if frontpage */
	function is_sircontheme_frontpage(){
		$is_default_homepage = is_front_page() && is_home();
		$is_static_homepage = !$is_default_homepage && is_front_page();

		return $is_default_homepage || $is_static_homepage;
	}
	/* Manual way of checking if real frontpage */
	function is_sircontheme_frontpage2(){
		if(get_option('show_on_front') == 'posts' && is_home()){return true;}

		//Get current url
		$current_url = is_https() ? 'https' : 'http';
		$current_url .= '://'.$_SERVER['HTTP_HOST'].''.$_SERVER['REQUEST_URI'];

		//Get the wordpress known frontpage url
		$wp_frontpage_url = home_url();
		
		//Watch for sneaky trailing slash
		if(substr($current_url, -1) === '/'){$current_url = substr($current_url, 0, -1);}
		if(substr($wp_frontpage_url, -1) === '/'){$wp_frontpage_url = substr($wp_frontpage_url, 0, -1);}

		//Now compare!
		if($current_url == $wp_frontpage_url){
			return true; //IS frontpage
		}
		return false; //NOT frontpage
	}


/*Give filename, removes appended and extra quotemarks
	Example give: "'file.php?lol_break_your_filename=true'"
	returns "file.php"
	*/
	function sircontheme_clean_filename($filename){
		$filename = str_replace(array('"', "'"), '', $filename);
		$splitters = array('#', '?');
		foreach($splitters as $splitter){
			$splitter_pos = strpos($filename, $splitter);
			if($splitter_pos !== false){
				$filesplit = explode($splitter, $filename);
				$filename = array_shift($filesplit);
			};	
		}

		return $filename;
	}

	
//Helpful for filters
	function sircontheme_return_false($a='', $b=''){ return false;}


//Helpful for image size dropdowns
	function array_insert($array,$values,$offset) {
		return array_slice($array, 0, $offset, true) + $values + array_slice($array, $offset, NULL, true);  
	}


	/* Get a complete shortcode raw from content */
	function get_sircontheme_raw_shortcode($tag, $content, $return_with_tags = true){
		if(!has_shortcode($content, $tag)){return '';}
		$content_split = explode('['.$tag.']', $content);
		$content_split2 = explode('[/'.$tag.']', array_pop($content_split));
		$shortcode_content = array_shift($content_split2);
		if($return_with_tags){
			$shortcode_content = '['.$tag.']'.$shortcode_content.'[/'.$tag.']';	
		}
		return $shortcode_content;
	}


	global $sircontheme_wpfile_creds;
	
	function sircontheme_prepare_wpfile_creds(){	
		global $sircontheme_wpfile_creds;
		if(!WP_Filesystem($sircontheme_wpfile_creds)){
			$sircontheme_wpfile_creds = request_filesystem_credentials('', '', false, false, null);
		}
	}

/**********************************************************
 *	Simple functions for adding or removing body classes
 ***********************************************************/

	/* adds a class to the body class */
	function add_sircontheme_body_class($class) {
		global $sircontheme_extra_body_classes;

		if(!is_array($sircontheme_extra_body_classes)){$sircontheme_extra_body_classes = array();}
		if(in_array($class, $sircontheme_extra_body_classes)){
			return; //already added
		}
		$sircontheme_extra_body_classes[] = $class;
	}

	/* removes a class from the body_class */
	function remove_sircontheme_body_class($class) {
		global $sircontheme_extra_body_classes;

		if(!is_array($sircontheme_extra_body_classes)){$sircontheme_extra_body_classes = array();}
		$where = array_search($class, $sircontheme_extra_body_classes);
		if($where === false){return;} //Not found
		unset($sircontheme_extra_body_classes[$where]);
	}

	/* -- Ok this does something - it modifies NONE of the body classes if the functions above are not used */
	add_filter('body_class', function($c){
		global $sircontheme_extra_body_classes;
		if(!$sircontheme_extra_body_classes){return $c;}

		foreach($sircontheme_extra_body_classes as $extra_class){
			$c[] = $extra_class;
		}

		return $c;
	});
/**********************************************************
 *	Post class function
 ************************************************************
	function post_class() {
		//does nothing
	}


/**********************************************************
 *	Optimize files!
 ***********************************************************/
	function sircontheme_optimize_js_file($js_filename, $source_folder, $target_folder){	
		$source_file = $source_folder.$js_filename;
		$target_file = $target_folder.basename($js_filename);

		//If the file exists, we only need to update it if the source file has changed since the last time
		if(file_exists($target_file)){
			//Check if changed
			$option_name = 'js-modified-'.$js_filename;
			$last_saved = get_option($option_name);
			$last_modded = filemtime($source_file);
			$changed = ($last_saved != $last_modded);
		
			if(!$changed){
				return false; //Do nothing! nothing changed, and file exists
			}
		}
		sircontheme_prepare_wpfile_creds();
		global $wp_filesystem;

		//File has changed, save new content!
		$most_current_js = $wp_filesystem->get_contents($source_file);

		//#### DO optimizations here
			if(!class_exists('JSMin')){
				//Fetch this fantastic thing to supercrunch javascript in a safe way. Less requests with fewer kilobytes is always good!
				include_once(SIRCONTHEME_INCLUDES_PATH.'classes/jsmin.php');
			}

			//Crunch
			$optimized_content = JSMin::minify($most_current_js);

		//##### Optimizations done

		//Save to cache file
		$wp_filesystem->put_contents($target_file, $optimized_content, FS_CHMOD_FILE);

		//Update last saved 
		update_option($option_name, $last_modded);

		return true; //Something was changed or created
	}


	// Give list of files, and a target file. Target file will contain all listed files content
	function sircontheme_many_files_to_one($source_folder, $source_files, $target_file){
		//Missing the target file, or at least one css file changed! Create a new one-and-only css-file
		$single_file_content = '';

		sircontheme_prepare_wpfile_creds();
		global $wp_filesystem;
		foreach($source_files as $filename){
			//Load css from cache file
			$source_file = $source_folder.basename($filename);
			$content_from_source = $wp_filesystem->get_contents($source_file);

			$readable_path_split = explode('public_html', $source_file);
			$readable_path = array_pop($readable_path_split);

			$single_file_content .= '/* Put into this file from '.$readable_path.' */'."\n".$content_from_source."\n\n";
		}
		
		$wp_filesystem->put_contents($target_file, $single_file_content, FS_CHMOD_FILE);
		
	}

	/* give a word and a text. Will extract the line of text containing that word */	
	function get_sircontheme_line_with_word($word, $text){
		$lines = explode("\n", $text);
		foreach($lines as $line){
			if(strpos($line, $word) !== false){
				return $line;
			}
		}
	}


	/* Speciality function for replacing scss values on the fly */
	function get_sircontheme_values_as_scss($vars, $text){
		$text = '';

		//Add new variables
		foreach($vars as $varname => $value){
			$text .= "\n";
			$text .= '$'.$varname.': '.$value.';';
		}

		//Informative text on first line.
		$informative_txt = '/* Delete this file to reset - You should not need to perform changes in this file. */';
		$has_informative = (strpos($text, $informative_txt) !== false);
		if(!$has_informative){
			$text = $informative_txt."\n\n".$text;
		}

		return $text;
	}

?>