// file index.php

<?php

include_once "library/Autoloader.php";
Autoloader::register();

$application = new Application();
$application->run();


// file library/autoloader.php

<?php


class Autoloader
{

    static function register()
    {
        spl_autoload_register(array(__CLASS__, 'autoload'));
    }

    static function autoload($name)
    {
        //todo: vérifier les fichiers autorisés
        $dir = "model";
        if (strpos($name, "Controller") !== FALSE)
            $dir = "controller";

        if (!file_exists($dir . "/" . $name . ".php")) {
            $dir = "library";
        }
        include_once $dir . "/" . $name . ".php";
    }

}


// file library/application.php

<?php

class Application
{
    public function __construct()
    {
        $this->config();
    }

    public function run()
    {
        $this->route();
    }

    private function config()
    {
        error_reporting(E_ALL | E_STRICT);
        ini_set('display_errors', true);
    }

    public static function getParameters()
    {
        return array_merge($_GET, $_POST);
    }

    private function route()
    {
        $parameters = $this->getParameters();

        if (isset($parameters["controller"])) {
            $controller = ucfirst($parameters["controller"]) . "Controller";

            if (class_exists($controller)) {
                $c = new $controller();

                if (isset($parameters["action"])) {
                    $action = strtolower($parameters["action"]);

                    if (method_exists($c, $action)) {
                        $c->$action();
                    }

                } else {
                    $c->index();
                }
            }

        } else {
            $c = new HomeController();
            $c->index();
        }
    }
}

// file library/database.php

<?php

class DataBase
{
    private static $connexion;

    const DB_NAME = "recrutement-mvc";
    const DB_USER = "root";
    const DB_PASSWORD = "";

    private static function connect()
    {
        if (self::$connexion == null) {
            try {
                self::$connexion = new PDO("mysql:host=localhost;dbname=" . self::DB_NAME, self::DB_USER, self::DB_PASSWORD);
                self::$connexion->exec("SET CHARACTER SET utf8");
            } catch (Exception $e) {
                echo "Erreur de connexion à la base de données.";
                exit;
            }
        }
    }

    public static function getConnexion()
    {
        self::connect();
        return self::$connexion;
    }

}

// file controller/AbstractController.php

<?php

abstract class AbstractController
{
    private $controller;
    private $model;
    private static $data;


    public function __construct()
    {
        $this->controller = get_class($this);
        $this->model = substr($this->controller, 0, strpos($this->controller, "Controller"));
    }

    public function render($view, $d = null)
    {
        self::$data = $d;

        $model = strtolower($this->model);
        if ($model == null) {
            $model = 'home';
        }

        if(file_exists("view/" . $model . "/" . $view . ".php")){
            include_once "view/header.php";
            include_once "view/" . $model . "/" . $view . ".php";
            include_once "view/footer.php";
        }

    }

    public function remove()
    {
        try {
            /** @var Model $r */
            $r = new $this->model(Application::getParameters()["id"]);
            $r->delete();

        } catch (Exception $e) {
            //(new HomeController())->render("index");
            // $this->render("error");
        }
    }

    public function getControllerName()
    {
    }

    public function getActionName()
    {

    }

    public function index()
    {
        $this->render("index");
    }

    public static function getData(){
        return self::$data;
    }
}

// file controller/UserController.php

<?php

class UserController extends AbstractController
{

    public function index()
    {
        $this->render("index", User::findAll());
    }

    public function view()
    {
        try {
            $u = new User(Application::getParameters()["id"]);

            $this->render("view", $u);
        } catch (Exception $e) {
            (new HomeController())->render("index");
        }
    }

    public function add()
    {
        $this->render("add");
    }

    public function edit()
    {
        $this->render("edit");
    }


}


// file controller/RoleController.php

<?php

class RoleController extends AbstractController
{
    public function index()
    {
        $this->render("index", Role::findAll());
    }

    public function view()
    {
        try {
            $r = new Role(Application::getParameters()["id"]);
            $this->render("view", $r);
        } catch (Exception $e) {
            (new HomeController())->render("index");
        }
    }

    public function add()
    {
        if (isset(Application::getParameters()["add_role"])) {
            if (!empty(Application::getParameters()["name"])) {
                $role = new Role();
                $role->name = Application::getParameters()["name"];

                $role->insert();

                header('Location: /?controller=role');
            }
        }

        $this->render("add");
    }

    public function edit()
    {
        $parameters = Application::getParameters();

        if (isset($parameters['id'])) {
            $id = $parameters['id'];

            try {
                $role = new Role($id);

                if (isset($parameters['edit_role'])) {
                    if (!empty($parameters['name'])) {

                        try {
                            $role->name = $parameters['name'];
                            header('Location: /?controller=role&action=index');

                        } catch (Exception $e) {
                            $this->render("edit", array('role' => $role, 'error' => 'Le role n\'a pas été mis à jour.'));
                        }

                    } else {
                        $this->render("edit", array('role' => $role, 'error' => 'Le nom du rôle ne peut être vide.'));
                    }
                }

                $this->render("edit", array('role' => $role));

            } catch (Exception $e) {
                (new HomeController())->render("index");
            }
        } else {
            (new HomeController())->render("index");
        }
    }


}