<?php

return [
    // Formato: 'MÉTODO /ruta' => 'NombreHandler'
    'GET /' => 'DefaultHandler',
    'GET /login/signin' => 'LoginHandler',
    'GET /login/signout' => 'LogoutHandler',
    'POST /login/signin' => 'LoginHandler',
    'POST /login/signout' => 'LoginHandler',
    'GET /page/show' => 'PageHandler',
    'GET /page/show/{slug}' => 'PageHandler',
    'GET /page/edit' => 'PageHandler',
    'POST /page/update' => 'PageHandler',
];

<?php

namespace App\Handlers;

use Pin\Libs\Template;
use Pin\Libs\Session;

class MyNewHandler extends Handler
{
    public function handle(array $params = [])
    {
        $method = $_SERVER['REQUEST_METHOD'];

        if ($method === 'GET') {
            $this->showForm();
        } elseif ($method === 'POST') {
            $this->processForm();
        }
    }
    
    private function showForm()
    {
        $template = new Template();
        $template->set('title', 'Mi Formulario');
        $template->render('myform/show');
    }
    
    private function processForm()
    {
        Session::set('flash', '¡Datos guardados!');
        $this->redirect('/');
    }
    
    private function redirect($path)
    {
        $url = PUBLIC_PATH . $path;
        header("Location: $url", true, 301);
        exit;
    }
}

'GET /myform' => 'MyNewHandler',
'POST /myform/save' => 'MyNewHandler',

use Pin\Libs\Session;

// Establecer variable
Session::set('user_id', 123);

// Obtener variable
$userId = Session::get('user_id');

// Verificar si existe
if (Session::get('is_logged_in') !== true) {
    // Redirigir a login
}

// Eliminar variable
Session::delete('user_id');

// Destruir sesión
Session::destroy();

use Pin\Libs\Template;

$template = new Template();

// Asignar datos
$template->set('title', 'Mi Página');
$template->set('user', $user);

// Cambiar plantilla (si no es la default)
$template->setTemplate('custom');

// Renderizar vista dentro de la plantilla
$template->render('products/index');

<!-- En app/views/products/index.phtml -->
<h1><?php echo $title; ?></h1>
<p>Bienvenido, <?php echo $user['name']; ?></p>

use Pin\Libs\Request;

// Obtener parámetro POST
$email = Request::post('email');

// Verificar si existe parámetro POST
if (Request::hasPost('email')) {
    // Procesar
}

// Obtener parámetro GET
$page = Request::get('page');

// Verificar si existe parámetro GET
if (Request::hasGet('search')) {
    // Buscar
}

use Pin\Libs\Load;

// Cargar vista (con parámetros)
Load::view('products/list', ['items' => $items]);

// Cargar parcial
Load::partial('navbar', ['user' => $user]);

// Cargar helper
Load::helper('html_tags');

// Cargar configuración
Load::config('database');

// Redirigir
Load::redirect('products');

use Pin\Libs\Db;

// Obtener todos los registros
$products = Db::findAll('SELECT * FROM products WHERE active = 1');

// Obtener un registro
$user = Db::findFirst('SELECT * FROM users WHERE id = ?', [123]);

// Obtener un valor escalar
$count = Db::getScalar('SELECT COUNT(*) FROM products');

// Insertar
$lastId = Db::insert('users', ['name' => 'Juan', 'email' => 'juan@example.com']);

// Actualizar
Db::update('users', ['name' => 'Carlos'], 'WHERE id = ?', [1]);

// Eliminar
Db::delete('users', 'WHERE id = ?', [1]);

// Transacciones
Db::beginTransaction();
try {
    Db::insert('orders', [...]);
    Db::insert('items', [...]);
    Db::commit();
} catch (Exception $e) {
    Db::rollback();
}

use Pin\Libs\QueryBuilder;

$qb = new QueryBuilder('products');
$qb->columns('id, name, price')
   ->where('category = :cat')
   ->where('price > :price')
   ->orderBy('name ASC')
   ->limit(10);

$sql = (string) $qb;
// SELECT id, name, price FROM products WHERE category = :cat AND price > :price ORDER BY name ASC LIMIT 10

$results = Db::findAll($sql, [':cat' => 'electronics', ':price' => 100]);

// routes.php
'GET /products' => 'ProductListHandler',
'GET /products/new' => 'ProductFormHandler',
'POST /products' => 'ProductCreateHandler',
'GET /products/{id}' => 'ProductShowHandler',
'GET /products/{id}/edit' => 'ProductEditHandler',
'PUT /products/{id}' => 'ProductUpdateHandler',
'DELETE /products/{id}' => 'ProductDeleteHandler',

<?php

namespace App\Handlers;

use Pin\Libs\Template;
use Pin\Libs\Request;
use Pin\Libs\Db;

class ProductListHandler extends Handler
{
    public function handle(array $params = [])
    {
        // Obtener productos
        $products = Db::findAll('SELECT * FROM products ORDER BY name');
        
        // Preparar vista
        $template = new Template();
        $template->set('products', $products);
        $template->render('products/list');
    }
}

<?php

// Incluir el helper
\Pin\Libs\Load::helper('html_tags');

// Ahora puedes usar las funciones
echo form_open(['action' => 'save']);
echo form_input('email', 'Email');
echo form_submit('Guardar');
echo form_close();

// Y otras funciones de utilidad
?>

<?php
function show() {
    $template = new Template();
    $template->render("product/show");
}

<?php
namespace App\Handlers;

use Pin\Libs\Template;

class ProductHandler extends Handler {
    public function handle(array $params = []) {
        $template = new Template();
        $template->render("product/show");
    }
}