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<?php
require_once 'vendor/autoload.php';
// Twig docs for this: https://twig.symfony.com/doc/2.x/api.html

// First arg to CLI - template path
$templatePath = $argv[1];

// data is STDIN aka `echo '{"title": "hello there"}' | php index.php '@upone/bar.twig'`
$in_data = [];
$in = fgets(STDIN);
if ($in) {
  $in_data = json_decode($in, true);
}

// Creates Twig Loader, uses `./templates` as default directory to look for Twig files
$loader = new Twig_Loader_Filesystem('templates');

// Add as many Twig Namespaces as you'd like
$loader->addPath(getcwd() . '/..', 'upone');

// Create Twig Environment with the `$loader` just made and some global settings
$twig = new Twig_Environment($loader, [
  'debug' => true,
]);

// Load the template that was first arg to this script
$template = $twig->load($templatePath);

// Pass data to template and get back HTML
$html = $template->render($in_data);

echo $html;