<?
session_start();
error_reporting(E_ALL);
ini_set("display_errors", 1);

require_once "functions.php";


class APP {

	private static $layout_name = "index";
	private static $route_call = "";
	private static $compress_html = false;

	public static function init() {
		$sys_file_path = dirname(__FILE__);
		$project_root = str_replace("system", "", $sys_file_path);
		$separator = "/";
		define('DIR_ROOT', $project_root);
		define('DIR_APP', $project_root."application/");
		define('DIR_SYS', $project_root."system/");

		$sys_file_url    = str_replace('system/system.php', '', $_SERVER['SCRIPT_NAME']);
		$sys_base_url    = (isset($_SERVER['HTTPS']) ? 'https://' : 'http://') . $_SERVER['SERVER_NAME'] . $sys_file_url;
		$full_url 		 = (isset($_SERVER['HTTPS']) ? 'https://' : 'http://') . $_SERVER['SERVER_NAME'] . $_SERVER['REQUEST_URI'];
		if (strpos($full_url, "?")!==false) {
			list($clear_url, $request_vars) = explode("?", $full_url);
		} else {
			$clear_url = $full_url;
		}

		$clear_path = str_replace($sys_base_url, "", $clear_url);
		self::$route_call = $clear_path;
		$path_sys = "system/".$clear_path;
		$path_app = "application/".$clear_path;

		if (isset($_GET['ajax_func'])) {
			define('IS_AJAX', true);
		} else {
			define('IS_AJAX', false);
		}
		if (APP::route(0)=="admin") {
			define('IS_ADMIN', true);
		} else {
			define('IS_ADMIN', false);
		}

		define('URL', $sys_base_url);
		if (APP::route(0)=="admin" && APP::route(1)=="logout") {
			unset($_SESSION['admin_logged_in']);
			APP::redirect($sys_base_url."admin/");
		} 
		define('URL_SYS_JS', $sys_base_url."system/js/");
		define('URL_SYS_CSS', $sys_base_url."system/css/");
		define('URL_SYS_IMG', $sys_base_url."system/img/");
		define('URL_IMG', $sys_base_url."application/img/");
		define('URL_WEB', $sys_base_url."application/");
		define('URL_WEB_CSS', $sys_base_url."application/css/");
		define('URL_JS', $sys_base_url."application/js/");
		define('URL_ADMIN', $sys_base_url."admin/");

		self::use_class("dbsql");
		require_once DIR_ROOT."db.php";
		self::use_class("text");
		self::use_class("settings");
		self::use_class("template");
		self::use_class("admin");		
		self::use_class("js");
		self::use_class("Mobile_Detect");	
		self::use_class("meta");
		self::use_class("jscss_cache");
		self::use_class("html_compress");
		self::use_class("minify_html");
		require_once DIR_APP."functions.php";
		APP::use_cache_css("css_app_default");
		APP::use_cache_js("js_app_default");

		$detect_mobile = new Mobile_Detect;
		if ($detect_mobile->isMobile()) {
			define('IS_MOBILE', true);
		} else {
			define('IS_MOBILE', false);
		}
		$skip_page = false;
		
		if(IS_ADMIN):
			ob_start();
			admin::render();
			if (!IS_AJAX) die();
			ob_end_clean();
		endif;
		if (IS_AJAX) APP::render_ajax();

		if (substr($path_sys, -1)=="/") $path_sys = substr($path_sys, 0, -1);
		if (substr($path_app, -1)=="/") $path_app = substr($path_app, 0, -1);

		
		if (APP::route(0)=="class" || APP::route(0)=="templates" || (APP::route(0)=="system" && APP::route(1)=="admin") || (APP::route(0)=="application" && APP::route(1)=="templates")) {
			$file_app_found = false;
			$file_found     = false;
			$skip_page      = true;
		}		
	
		ob_start();

		if (!$skip_page):
			if (is_file(DIR_ROOT.$path_app)) {
				$file_found = true;
				include DIR_ROOT.$path_app;
			}  else if (is_file(DIR_ROOT.$path_app.".php")) {
				$file_found = true;
				include DIR_ROOT.$path_app.".php";
			} else if (is_file(DIR_APP.APP::route(0))) { 
				$file_found = true;
				include DIR_APP.APP::route(0);
			} else if (is_file(DIR_APP.APP::route(0).".php")) { 
				$file_found = true;
				include DIR_APP.APP::route(0).".php";
			} else {
				$file_found = false;
			} 

			if (!$file_found) {
				if (is_file(DIR_ROOT.$path_sys)) {
					$file_app_found = true;
					include DIR_ROOT.$path_sys;
				} else if (is_file(DIR_ROOT.$path_sys.".php")) {
					$file_app_found = true;
					include DIR_ROOT.$path_sys.".php";
				} else if (is_file(DIR_APP.APP::route(0))) { 
					$file_found = true;
					include DIR_APP.APP::route(0);
				} else if (is_file(DIR_APP.APP::route(0).".php")) { 
					$file_found = true;
					include DIR_APP.APP::route(0).".php";
				} else {
					$file_app_found = false;
				}
			}
		endif;


		if (!$file_found && !$file_app_found) {
			include DIR_ROOT."application/index.php";
		}
		
		$page_content = ob_get_contents();
		ob_get_clean();



		// output page
		APP::render_page($page_content);
		// end output	
	}

	static function use_cache_css($group_name) {
		jscss_cache::add_group_css($group_name);
		jscss_cache::$cache_used_css = $group_name;
	}
	static function use_cache_js($group_name) {
		jscss_cache::add_group_js($group_name);
		jscss_cache::$cache_used_js = $group_name;
	}

	public static function render_ajax() {
		if (isset($_GET['ajax_func'])) {
			while (ob_get_level()) {
				ob_end_clean();
			}
			$p = $_GET['ajax_func'];
			$full_name = "ajax_".$p;
			if (function_exists($full_name)) {
				$full_name($_POST);
			} else {
			  	js::exec("alert('Function ".$full_name." not existing!');");		
			}
			js::show();
			die();
		}
	}

	public static function minify_html() {
		self::$compress_html = true;
	}

	public static function redirect($url) {
		header("Location: $url");
	}

	public static function pass_crypt($string) {
		return openssl_digest($string, 'sha512');
	}
	public static function use_class($class_name) {
		if (is_file(DIR_APP."class/".$class_name.".php")) {
			require_once DIR_APP."class/".$class_name.".php";
		} else if (is_file(DIR_SYS."class/".$class_name.".php")) {
			require_once DIR_SYS."class/".$class_name.".php";
		} else {
			echo "CLASS <b>$class_name</b> NOT FOUND!";
		}
	}

	public static function set_layout($layout_name) {
		self::$layout_name = $layout_name;
	}

	public static function render_page($content) {
		if (settings::add("app.minify_html", "Y") == "Y") APP::minify_html();
		$content = template::get("page_layout.".self::$layout_name, array('page_content' => $content));
		if (self::$compress_html) $content = Minify_HTML::minify($content);
		print $content;
	}

	public static function route($index) {
		$route_call = self::$route_call;
		$route_exp = explode("/", $route_call);
		if (isset($route_exp[$index])) {
			return $route_exp[$index];
		} else {
			return "";
		}		
	}
}

APP::init();


?>