<?php

Lib::loadClass('HttpException');

class Router {

	public static function route($route) {
		if (empty($route)) return;

		try {
			$route = self::getRoute($route);
			$route->route();
		} catch (HttpException $e) {
			Http::sendHeaderByCode($e->getCode());
			die($e->getMessage());
		} catch (Exception $e) {
			die($e->getMessage());
		}
		exit;
	}

	public static function handleAuth($route) {
		if (empty($route)) return;

		try {
			$route = self::getRoute($route);
			$route->handleAuth();
		} catch (HttpException $e) {
			Http::sendHeaderByCode($e->getCode());
			die($e->getMessage());
		} catch (Exception $e) {
			die($e->getMessage());
		}
	}

	public static function getRoute($route) {
		static $_routeInstances = null;
		if (!is_array($_routeInstances)) $_routeInstances = array();
		if (empty($route)) return;
		if (array_key_exists($route, $_routeInstances)) return $_routeInstances[$route];

		$routeClassName = "Route_{$route}";
		if ('UrlAction' === substr($route, 0, strlen('UrlAction'))) { // Use project/{$activeProject}/tools/{$routeName}.php
			$routeFileName = substr($route, strlen('UrlAction') + 1);
			$routeClassName = "RouteTool_{$routeFileName}";
			$activeProjectPath = Config::getProjectPath();
			if ($activeProjectPath) {
				$toolPath = "{$activeProjectPath}/tools/{$routeFileName}.php";
				if (file_exists($toolPath)) {
					require_once $toolPath;
					if (!class_exists($routeClassName)) throw new HttpException("Not found class", 404);
					$_routeInstances[$route] = new $routeClassName();
					return $_routeInstances[$route];
				}
			}
		}

		$routeClassName = "Route_{$route}";
		if (Lib::tryLoadClass($routeClassName)) {
			$_routeInstances[$route] = new $routeClassName();
			return $_routeInstances[$route];
		} else {
			throw new HttpException("Not found", 404);
		}
	}

}