<?php

namespace rosavox\helpers;

	
/**
 */
class cache_state
{
	public static array $pool = [];
}


/**
 */
function cache_get(string $key, \Closure $retrieve)
{
	if (\array_key_exists($key, cache_state::$pool))
	{
		$value = cache_state::$pool[$key];
	}
	else
	{
		$value = ($retrieve)();
		cache_state::$pool[$key] = $value;
	}
	return $value;
}


/**
 */
function string_coin(string $template, array $arguments) : string
{
	$result = $template;
	foreach ($arguments as $key => $value)
	{
		$result = \str_replace(\sprintf('{{%s}}', $key), $value, $result);
	}
	return $result;
}


/**
 */
function render(string $template_name, array $arguments) : string
{
	return string_coin(
		cache_get(
			string_coin(
				'template.{{name}}',
				[
					'name' => $template_name,
				]
			),
			fn() => \file_get_contents(
				string_coin(
					'{{directory}}/templates/{{name}}.html.tpl',
					[
						'directory' => __DIR__,
						'name' => $template_name,
					]
				)
			)
		),
		$arguments
	);
}


/**
 */
function navigate(string $target) : void
{
	\header('Location: ' . $target);
}


 ?>