Add a simple application and container and update them to use the router

qa-include/app/page.php

@@ -19,13 +19,7 @@
 	More about this license: http://www.question2answer.org/license.php
 */
 
-use Q2A\Controllers\User\UserMessages;
-use Q2A\Controllers\User\UserPosts;
-use Q2A\Controllers\User\UserProfile;
-use Q2A\Controllers\User\UsersList;
 use Q2A\Exceptions\ExceptionHandler;
-use Q2A\Http\Route;
-use Q2A\Http\Router;
 
 if (!defined('QA_VERSION')) { // don't allow this page to be requested directly from browser
 	header('Location: ../../');
@@ -186,8 +180,8 @@ function qa_get_request_content()
 	$firstlower = strtolower($requestparts[0]);
 	$routing = qa_page_routing();
 
-	$router = new Router(qa_routing_config());
-	$route = $router->match($requestlower);
+	qa_routing_config();
+	$route = app('router')->match($requestlower);
 
 	if (isset($route)) {
 		// use new Controller system
@@ -463,23 +457,22 @@ function qa_page_routing()
 
 /**
  * [qa_routing_config description]
- * @return Route[]
  */
 function qa_routing_config()
 {
-	return array(
-		new Route('user', 'get', 'user/{str}', '\Q2A\Controllers\User\UserProfile', 'profile'),
-		new Route('user-self', 'get', 'user', '\Q2A\Controllers\User\UserProfile', 'index'),
-		new Route('user-wall', 'get', 'user/{str}/wall', '\Q2A\Controllers\User\UserMessages', 'wall'),
-		new Route('user-activity', 'get', 'user/{str}/activity', '\Q2A\Controllers\User\UserPosts', 'activity'),
-		new Route('user-questions', 'get', 'user/{str}/questions', '\Q2A\Controllers\User\UserPosts', 'questions'),
-		new Route('user-answers', 'get', 'user/{str}/answers', '\Q2A\Controllers\User\UserPosts', 'answers'),
-
-		new Route('user-top', 'get', 'users', '\Q2A\Controllers\User\UsersList', 'top'),
-		new Route('user-blocked', 'get', 'users/blocked', '\Q2A\Controllers\User\UsersList', 'blocked'),
-		new Route('user-new', 'get', 'users/new', '\Q2A\Controllers\User\UsersList', 'newest'),
-		new Route('user-special', 'get', 'users/special', '\Q2A\Controllers\User\UsersList', 'special'),
-	);
+	$router = app('router');
+	$router->addRoute('user', 'get', 'user/{str}', '\Q2A\Controllers\User\UserProfile', 'profile');
+	$router->addRoute('user', 'post', 'user/{str}', '\Q2A\Controllers\User\UserProfile', 'profile');
+	$router->addRoute('user-self', 'get', 'user', '\Q2A\Controllers\User\UserProfile', 'index');
+	$router->addRoute('user-wall', 'get', 'user/{str}/wall', '\Q2A\Controllers\User\UserMessages', 'wall');
+	$router->addRoute('user-activity', 'get', 'user/{str}/activity', '\Q2A\Controllers\User\UserPosts', 'activity');
+	$router->addRoute('user-questions', 'get', 'user/{str}/questions', '\Q2A\Controllers\User\UserPosts', 'questions');
+	$router->addRoute('user-answers', 'get', 'user/{str}/answers', '\Q2A\Controllers\User\UserPosts', 'answers');
+
+	$router->addRoute('user-top', 'get', 'users', '\Q2A\Controllers\User\UsersList', 'top');
+	$router->addRoute('user-blocked', 'get', 'users/blocked', '\Q2A\Controllers\User\UsersList', 'blocked');
+	$router->addRoute('user-new', 'get', 'users/new', '\Q2A\Controllers\User\UsersList', 'newest');
+	$router->addRoute('user-special', 'get', 'users/special', '\Q2A\Controllers\User\UsersList', 'special');
 }
 
 

qa-include/qa-base.php

@@ -19,11 +19,9 @@
 	More about this license: http://www.question2answer.org/license.php
 */
 
-
 define('QA_VERSION', '1.8.0-beta1'); // also used as suffix for .js and .css requests
 define('QA_BUILD_DATE', '2017-09-07');
 
-
 /**
  * Autoloads some Q2A classes so it's possible to use them without adding a require_once first. From version 1.7 onwards.
  * These loosely follow PHP-FIG's PSR-0 standard where faux namespaces are separated by underscores. This is being done
@@ -63,6 +61,10 @@ if (defined('QA_WORDPRESS_LOAD_FILE')) {
 }
 
 
+require QA_BASE_DIR . 'qa-src/helpers.php';
+app();
+
+
 qa_initialize_constants_2();
 qa_initialize_modularity();
 qa_register_core_modules();

qa-src/App/Application.php

+<?php
+/*
+	Question2Answer by Gideon Greenspan and contributors
+	http://www.question2answer.org/
+
+	This program is free software; you can redistribute it and/or
+	modify it under the terms of the GNU General Public License
+	as published by the Free Software Foundation; either version 2
+	of the License, or (at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	More about this license: http://www.question2answer.org/license.php
+*/
+
+namespace Q2A\App;
+
+use Q2A\Http\Router;
+
+class Application
+{
+	/** @var Container */
+	private $container;
+
+	/** @var static */
+	protected static $instance;
+
+	public function __construct()
+	{
+		$this->container = new Container();
+
+		$this->registerCoreBindings();
+	}
+
+	/**
+	 * Instantiate and fetch the application as a singleton.
+	 * @return static
+	 */
+	public static function getInstance()
+	{
+		if (is_null(static::$instance)) {
+			static::$instance = new static();
+		}
+
+		return static::$instance;
+	}
+
+	/**
+	 * Register the bindings used by the core.
+	 */
+	private function registerCoreBindings()
+	{
+		$this->container->bind('router', new Router());
+	}
+
+	/**
+	 * Return the container instance.
+	 * @return Container
+	 */
+	public function getContainer()
+	{
+		return $this->container;
+	}
+}

qa-src/App/Container.php

+<?php
+/*
+	Question2Answer by Gideon Greenspan and contributors
+	http://www.question2answer.org/
+
+	This program is free software; you can redistribute it and/or
+	modify it under the terms of the GNU General Public License
+	as published by the Free Software Foundation; either version 2
+	of the License, or (at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	More about this license: http://www.question2answer.org/license.php
+*/
+
+namespace Q2A\App;
+
+use Q2A\Exceptions\FatalErrorException;
+
+class Container
+{
+	/** @var array */
+	protected $bindings = array();
+
+	/**
+	 * Bind an object to a key.
+	 * @param mixed $key The key to bind the object to
+	 * @param mixed $object The object to bind to the key
+	 */
+	public function bind($key, $object)
+	{
+		$this->bindings[$key] = $object;
+	}
+
+	/**
+	 * Return an object bound to the given key. If the key is not found an exception is thrown.
+	 * @param mixed $key The key to look for
+	 * @return mixed
+	 */
+	public function resolve($key)
+	{
+		if (isset($this->bindings[$key])) {
+			return $this->bindings[$key];
+		}
+
+		throw new FatalErrorException(sprintf('Key "%s" not bound in container', $key));
+	}
+}

qa-src/Http/Router.php

@@ -21,7 +21,7 @@ namespace Q2A\Http;
 class Router
 {
 	/** @var Route[] */
-	protected $routes;
+	protected $routes = array();
 
 	/** @var array */
 	private $paramsConverter;
@@ -29,10 +29,8 @@ class Router
 	/** @var string */
 	private $httpMethod;
 
-	public function __construct($routeData = array())
+	public function __construct()
 	{
-		$this->routes = $routeData;
-
 		$this->paramsConverter = array(
 			'{str}' => '([^/]+)',
 			'{int}' => '([0-9]+)',

qa-src/helpers.php

+<?php
+
+use Q2A\App\Application;
+
+if (!function_exists('app')) {
+	/**
+	 * Helper function to access the application object.
+	 * If the $key parameter is null the application instance is returned.
+	 * If the $key parameter is set and the $object parameter is null the container is called to resolve the $key.
+	 * If the $key and the $object parameters are null the container is called to bind the $object to the $key.
+	 * @param mixed $key
+	 * @param mixed $object
+	 * @return mixed
+	 */
+	function app($key = null, $object = null)
+	{
+		if (is_null($key)) {
+			return Application::getInstance();
+		}
+
+		if (is_null($object)) {
+			return Application::getInstance()->getContainer()->resolve($key);
+		}
+
+		Application::getInstance()->getContainer()->bind($key, $object);
+	}
+}