<?php

namespace Soul;





use Soul\Mvc\Controller;

use Soul\Mvc\Request;

use Soul\Mvc\Response;

use Soul\Mvc\Router;

use Soul\Mvc\View;

use Soul\Pattern\Singleton;





class Application extends Singleton

{

    /**

     * @var View $_view

     */

    protected $_view = null;

    /**

     * @var Request $request

     */

    protected $_request = null;

    /**

     * @var Router $_router ;

     */

    protected $_router = null;

    /**

     * @var Response $_response ;

     */

    protected $_response = null;

    /**

     * @var string $_moduleName

     */

    protected $_moduleName = null;

    /**

     * @var array $_modules

     */

    protected $_modules = array();

    /**

     * @var string $_applicationDir

     */

    protected $_applicationDir = null;



    /**

     * @var string $_applicationName

     */

    protected $_applicationName = 'Application';



    /**

     * @var string Default Action

     */

    protected $_defaultAction = 'index';

    /**

     * @var string Default Controllers

     */

    protected $_defaultController = 'index';



    /**

     * @var string Module

     */

    protected $_defaultModule = null;



    /**

     *

     */



    public function __construct()

    {



    }



    /**

     * @param $name

     * @return mixed

     */

    public function setApplicationName($name)

    {

        return $this->_applicationName = $name;

    }



    /**

     * @return string

     */

    public function getApplicationName()

    {

        return $this->_applicationName;

    }



    /**

     * @param string $dir

     * @return $this

     */

    public function setApplicationDir($dir)

    {

        $this->_applicationDir = $dir;

        return $this;

    }



    /**

     * @return string Application Dir

     */

    public function getApplicationDir()

    {

        return $this->_applicationDir;

    }





    /**

     * @param $module

     * @return $this

     */

    public function setModuleName($module)

    {

        $this->_moduleName = $module;

        return $this;

    }



    /**

     * @param $modules

     * @return $this

     */

    public function setModules($modules)

    {

        $this->_modules = $modules;

        return $this;

    }



    /**

     * @return array

     */

    public function getModules()

    {

        return $this->_modules;

    }



    /**

     * @param Router $router

     * @return $this

     */

    public function setRouter(Router $router)

    {

        $this->_router = $router;

        return $this;

    }



    /**

     * @return Router

     */

    public function getRouter()

    {

        if (null == $this->_router) {

            $this->_router = new Router\Rewrite();



        }

        return $this->_router;

    }



    /**

     * @param Request $request

     * @return $this

     */

    public function setRequest(Request $request)

    {

        $this->_request = $request;

        return $this;

    }



    /**

     * @return Request

     */

    public function getRequest()

    {

        if (null == $this->_request) {

            $this->_request = new Request();

        }

        return $this->_request;

    }



    /**

     * @param Response $response

     * @return $this

     */

    public function setResponse(Response $response)

    {

        $this->_response = $response;

        return $this;

    }



    /**

     * @return Response

     */

    public function getResponse()

    {

        if (null === $this->_response) {

            $this->_response = new Response();

        }

        return $this->_response;

    }



    /**

     * @param $unFormatted

     * @return string

     */

    public function formatModuleName($unFormatted)

    {

        return ucfirst($unFormatted);

    }





    /**

     * @param $unFormatted

     * @return string

     */

    public function formatControllerName($unFormatted)

    {

        return ucfirst($unFormatted);

    }



    /**

     * @param $unFormatted

     * @return string

     */

    public function formatActionName($unFormatted)

    {

        return $unFormatted;

    }



    /**

     * @param Controller $controller

     * @return $this

     */

    public function setDefaultController($controller)

    {

        $this->_defaultController = $controller;

        return $this;

    }



    /**

     * @return string

     */

    public function getDefaultController()

    {

        return $this->_defaultController;

    }



    /**

     * @param $action

     * @return $this

     */

    public function setDefaultAction($action)

    {

        $this->_defaultAction = $action;

        return $this;

    }



    /**

     * @return string

     */

    public function getDefaultAction()

    {

        return $this->_defaultAction;

    }



    /**

     * @param $view

     */

    public function setView($view)

    {

        $this->_view = $view;

    }



    /**

     * @return View

     */

    public function getView()

    {

        if (null === $this->_view) {

            $this->_view = new View($this->getModuleDir() . DIRECTORY_SEPARATOR . 'Views');

        }

        return $this->_view;

    }





    /**

     * @return string

     */

    public function getControllerDir()

    {

        $directory = $this->getModuleDir() . DIRECTORY_SEPARATOR . 'Controllers';

        return $directory;

    }





    /**

     * @param Request $request

     * @return string action name

     */

    public function getActionMethod(Request $request)

    {

        $action = $request->getActionName();

        if (empty($action)) {

            $action = $this->getDefaultAction();

            $request->setActionName($action);

        }

        return $this->formatActionName($action);

    }



    /**

     * @param Request $request

     * @return string

     * @throws Exception

     */

    public function getControllerClass(Request $request)

    {

        $controller = $request->getControllerName();

        if (empty($controller)) {

            $controller = $this->getDefaultController();

            $request->setControllerName($controller);

        }

        $module = $this->getModuleName();

        if (!empty($module)) {

            $module = $module . '\\';

        }

        $finalClass = $this->getApplicationName() . '\\' . $module . 'Controllers\\' . $this->formatControllerName($controller);

        if (!class_exists($finalClass)) {

            throw new Exception("Controllers : $finalClass not found!");

        }

        return $finalClass;

    }



    /**

     * @return string

     */

    public function getModuleName()

    {

        $module = $this->getRequest()->getModuleName();

        $module = $this->formatModuleName($module);

        return $module;

    }



    public function getModuleDir()

    {

        $module = $this->getModuleName();

        if (empty($module)) {

            return $this->getApplicationDir();

        }

        return $this->getApplicationDir() . DIRECTORY_SEPARATOR . $this->getModuleName();

    }



    /**

     * Dispatch to a controller/action

     */

    public function dispatch()

    {

        $request = $this->getRequest();

        $module = $this->getModuleName($request);

        if (!empty($module)) {

            if (!in_array($module, $this->getModules())) {

                throw new Exception('Module  ' . $module . ' not found');

            }

        }

        if (null === $request->getActionName()) {

            $router = $this->getRouter();

            $router->route($request);

        }



        $this->setModuleName($module);

        $controllerClass = $this->getControllerClass($request);

        /* @var Controller $controller */

        $controller = new $controllerClass($this);

        $response = $this->getResponse();

        $controller->setResponse($response);

        $action = $this->getActionMethod($request);

        try {



            $controller->$action();

        } catch (Exception $e) {

            throw $e;

        }

    }



    public static function run()

    {

        self::getInstance()->dispatch();

    }

}