<?php namespace CodeIgniter\Router;

/**
 * CodeIgniter
 *
 * An open source application development framework for PHP
 *
 * This content is released under the MIT License (MIT)
 *
 * Copyright (c) 2014 - 2017, British Columbia Institute of Technology
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 *
 * @package	CodeIgniter
 * @author	CodeIgniter Dev Team
 * @copyright	Copyright (c) 2014 - 2017, British Columbia Institute of Technology (http://bcit.ca/)
 * @license	https://opensource.org/licenses/MIT	MIT License
 * @link	https://codeigniter.com
 * @since	Version 3.0.0
 * @filesource
 */

/**
 * Interface RouteCollectionInterface
 *
 * A Route Collection's sole job is to hold a series of routes. The required
 * number of methods is kept very small on purpose, but implementors may
 * add a number of additional methods to customize how the routes are defined.
 *
 * The RouteCollection provides the Router with the routes so that it can determine
 * which controller should be ran.
 *
 * @package CodeIgniter\Router
 */
interface RouteCollectionInterface
{

	/**
	 * Adds a single route to the collection.
	 *
	 * @param string $from
	 * @param array|string $to
	 *
	 * @return mixed
	 */
	public function add(string $from, $to);

	//--------------------------------------------------------------------

	/**
	 * Registers a new constraint with the system. Constraints are used
	 * by the routes as placeholders for regular expressions to make defining
	 * the routes more human-friendly.
	 *
	 * You can pass an associative array as $placeholder, and have
	 * multiple placeholders added at once.
	 *
	 * @param string|array $placeholder
	 * @param string       $pattern
	 *
	 * @return mixed
	 */
	public function addPlaceholder(string $placeholder, string $pattern=null);

	//--------------------------------------------------------------------

	/**
	 * Sets the default namespace to use for Controllers when no other
	 * namespace has been specified.
	 *
	 * @param $value
	 *
	 * @return mixed
	 */
	public function setDefaultNamespace(string $value);

	//--------------------------------------------------------------------

	/**
	 * Sets the default controller to use when no other controller has been
	 * specified.
	 *
	 * @param $value
	 *
	 * @return mixed
	 */
	public function setDefaultController(string $value);

	//--------------------------------------------------------------------

	/**
	 * Sets the default method to call on the controller when no other
	 * method has been set in the route.
	 *
	 * @param $value
	 *
	 * @return mixed
	 */
	public function setDefaultMethod(string $value);

	//--------------------------------------------------------------------

	/**
	 * Tells the system whether to convert dashes in URI strings into
	 * underscores. In some search engines, including Google, dashes
	 * create more meaning and make it easier for the search engine to
	 * find words and meaning in the URI for better SEO. But it
	 * doesn't work well with PHP method names....
	 *
	 * @param bool $value
	 *
	 * @return mixed
	 */
	public function setTranslateURIDashes(bool $value);

	//--------------------------------------------------------------------

	/**
	 * If TRUE, the system will attempt to match the URI against
	 * Controllers by matching each segment against folders/files
	 * in APPPATH/Controllers, when a match wasn't found against
	 * defined routes.
	 *
	 * If FALSE, will stop searching and do NO automatic routing.
	 *
	 * @param bool $value
	 *
	 * @return RouteCollection
	 */
	public function setAutoRoute(bool $value): self;

	//--------------------------------------------------------------------

	/**
	 * Sets the class/method that should be called if routing doesn't
	 * find a match. It can be either a closure or the controller/method
	 * name exactly like a route is defined: Users::index
	 *
	 * This setting is passed to the Router class and handled there.
	 *
	 * @param callable|null $callable
	 *
	 * @return $this
	 */
	public function set404Override($callable = null): self;

	//--------------------------------------------------------------------

	/**
	 * Returns the 404 Override setting, which can be null, a closure
	 * or the controller/string.
	 *
	 * @return string|\Closure|null
	 */
	public function get404Override();

	//--------------------------------------------------------------------


	/**
	 * Returns the name of the default controller. With Namespace.
	 *
	 * @return string
	 */
	public function getDefaultController();

	//--------------------------------------------------------------------

	/**
	 * Returns the name of the default method to use within the controller.
	 *
	 * @return string
	 */
	public function getDefaultMethod();

	//--------------------------------------------------------------------

	/**
	 * Returns the current value of the translateURIDashses setting.
	 *
	 * @param bool|false $val
	 *
	 * @return mixed
	 */
	public function shouldTranslateURIDashes();

	//--------------------------------------------------------------------

	/**
	 * Returns the flag that tells whether to autoRoute URI against Controllers.
	 *
	 * @return bool
	 */
	public function shouldAutoRoute();

	//--------------------------------------------------------------------

	/**
	 * Returns the raw array of available routes.
	 *
	 * @return mixed
	 */
	public function getRoutes();

	//--------------------------------------------------------------------

	/**
	 * Returns the current HTTP Verb being used.
	 *
	 * @return string
	 */
	public function getHTTPVerb();

	//--------------------------------------------------------------------

	/**
	 * Attempts to look up a route based on it's destination.
	 *
	 * If a route exists:
	 *
	 *      'path/(:any)/(:any)' => 'Controller::method/$1/$2'
	 *
	 * This method allows you to know the Controller and method
	 * and get the route that leads to it.
	 *
	 *      // Equals 'path/$param1/$param2'
	 *      reverseRoute('Controller::method', $param1, $param2);
	 *
	 * @param string $search
	 * @param        ...$params
	 * @return string
	 */
	public function reverseRoute(string $search, ...$params): string;

	//--------------------------------------------------------------------

	/**
	 * Determines if the route is a redirecting route.
	 *
	 * @param string $from
	 *
	 * @return bool
	 */
	public function isRedirect(string $from): bool;

	//--------------------------------------------------------------------

	/**
	 * Grabs the HTTP status code from a redirecting Route.
	 *
	 * @param string $from
	 *
	 * @return int
	 */
	public function getRedirectCode(string $from): int;

	//--------------------------------------------------------------------

}