router.php

<?php

include_once('app/controllers/pet.controller.php');
include_once('app/controllers/menu.controller.php');
include_once('app/controllers/user.controller.php');
include_once('app/controllers/city.controller.php');
include_once('app/controllers/animaltype.controller.php');

// defino la base url para la construccion de links con urls semánticas
define('BASE_URL', '//'.$_SERVER['SERVER_NAME'] . ':' . $_SERVER['SERVER_PORT'] . dirname($_SERVER['PHP_SELF']).'/');

// lee la acción
if (!empty($_GET['action'])) {
    $action = $_GET['action'];
} else {
    $action = 'home'; // acción por defecto si no envían
}

// parsea la accion Ej: suma/1/2 --> ['suma', 1, 2]
$params = explode('/', $action);

// determina que camino seguir según la acción
switch ($params[0]) {
    case 'login':
        $controller = new UserController();
        $controller->showLogin();
        break;
    case 'signup':
        $controller = new UserController();
        $controller->showSignup();
        break;
    case 'adduser':
        $controller = new UserController();
        $controller->adduser();
        break;
    case 'verify':
        $controller = new UserController();
        $controller->logIn();
        break;
    case 'logout':
        $controller = new UserController();
        $controller->logOut();
        break;
    case 'home':
        $controller = new PetController();
        $amount = isset($params[1]) ? $params[1] : 0;
        $controller->showHome($amount);
        break;
    case 'admin':
        $controller = new PetController();
        $amount = isset($params[1]) ? $params[1] : 0;
        $controller->showAdmin($amount);
        break;
    case 'mis-mascotas':
        $controller = new PetController();
        $controller->showMyPets();
        break;
    case 'categorias':
        $controller = new PetController();
        $controller->showCategories();
        break;
    case 'sobre-nosotros':
        $controller = new MenuController();
        $controller->showAbout();
        break;
    case 'filtrar':
        $controller = new PetController();
        $amount = isset($params[1]) ? $params[1] : 0;
        $controller->showByFilter($amount);
        break;
    case 'ver':
        $controller = new PetController();
        $id = $params[1];
        $controller->show($id);
        break;
    case 'agregar':
        $controller = new PetController();
        $controller->showAddPetForm();
        break;
    case 'insertar-mascota':
        $controller = new PetController();
        $controller->add();
        break;
    case 'editar':
        $controller = new PetController();
        $id = $params[1];
        $controller->edit($id);
        break;
    case 'actualizar-mascota':
        $controller = new PetController();
        $id = isset($params[1]) ? $params[1] : null;
        $controller->update($id);
        break;
    case 'eliminar':
        $controller = new PetController();
        $id = isset($params[1]) ? $params[1] : null;
        $controller->delete($id);
        break;
    case 'encontrar':
        $controller = new PetController();
        $id = isset($params[1]) ? $params[1] : null;
        $controller->setFound($id);
        break;
    case 'agregar-ciudad':
        $controller = new CityController();
        $controller->showAddNewCity();
        break;
    case 'insertar-ciudad':
        $controller = new CityController();
        $controller->add();
        break;
    case 'editar-ciudad':
        $controller = new CityController();
        $id = isset($params[1]) ? $params[1] : null;
        $controller->edit($id);
        break;
    case 'actualizar-ciudad':
        $controller = new CityController();
        $id = isset($params[1]) ? $params[1] : null;
        $controller->update($id);
        break;
    case 'eliminar-ciudad':
        $controller = new CityController();
        $id = isset($params[1]) ? $params[1] : null;
        $controller->delete($id);
        break;
    case 'agregar-tipo-de-animal':
        $controller = new AnimalTypeController();
        $controller->showAddNewAnimalType();
        break;
    case 'insertar-tipo-de-animal':
        $controller = new AnimalTypeController();
        $controller->add();
        break;
    case 'editar-tipo-de-animal':
        $controller = new AnimalTypeController();
        $id = isset($params[1]) ? $params[1] : null;
        $controller->edit($id);
        break;
    case 'actualizar-tipo-de-animal':
        $controller = new AnimalTypeController();
        $id = isset($params[1]) ? $params[1] : null;
        $controller->update($id);
        break;
    case 'eliminar-tipo-de-animal':
        $controller = new AnimalTypeController();
        $id = isset($params[1]) ? $params[1] : null;
        $controller->delete($id);
        break;
    case 'usuarios':
        $controller = new UserController();
        $controller->showAll();
        break;
    case 'modificar-permiso-usuario':
        //La url debe estar formada así: 'modificar-permiso-usuario/[userId]/[permiso]'
        $userId = isset($params[1]) ? $params[1] : null;
        $permissionId = isset($params[2]) ? $params[2] : null;
        $controller = new UserController();
        $controller->updateUserPermissions($userId,$permissionId);
        break;
    case 'eliminar-usuario':
        $userId = isset($params[1]) ? $params[1] : null;
        $controller = new UserController();
        $controller->deleteUser($userId);
        break;  
    default:
        header("HTTP/1.0 404 Not Found");
        $controller = new MenuController();
        $controller->showNotFound();
        break;
}