Controller.php

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<?php
 
namespace SteeveDroz\NanoFramework;
 
use SteeveDroz\NanoFramework\Exceptions\Error404Exception;

abstract class Controller
{
    protected $data = [];

    protected $rawData = [];

    public function __construct()
    {
    }

    protected function fragment(string $page): string
    {
        if ('.html' != \substr($page, -5)) {
            $page .= '.html';
        }
        $view = new View();
 
        return $view->parseFile(APPPATH . DIRECTORY_SEPARATOR . 'Views' . DIRECTORY_SEPARATOR . $page, $this->data, $this->rawData);
    }

    protected function render(): void
    {
        $caller = debug_backtrace(0, 2)[1];
        $classParts = explode('\\', $caller['class']);
        $page = strtolower(end($classParts)) . DIRECTORY_SEPARATOR . $caller['function'];
 
        $fragment = $this->fragment($page);
 
        $this->rawData['template_content'] = $fragment;
        $siteName = DotEnv::getEnv('SITE_NAME') ?? 'change SITE_NAME in .env';
        $this->data['template_title'] = array_key_exists('page_title', $this->data) ? $this->data['page_title'] . ' — ' . $siteName : $siteName;
 
        $template = $this->fragment('template.html');
 
        echo $template;
    }

    protected function getMethod(): string
    {
        return strtolower($_SERVER['REQUEST_METHOD']);
    }

    protected function isPost(): bool
    {
        return 'post' == $this->getMethod();
    }

    protected function isGet(): bool
    {
        return 'get' == $this->getMethod();
    }

    protected function isAjax(): bool
    {
        return 'xmlhttprequest' == strtolower($_SERVER['HTTP_X_REQUESTED_WITH'] ?? '');
    }

    protected function getPost(?string $element = null)
    {
        if (null === $element) {
            return $_POST;
        }
 
        return $_POST[$element] ?? null;
    }

    protected function getGet(?string $element = null)
    {
        if (null === $element) {
            return $_GET;
        }
 
        return $_GET[$element] ?? null;
    }

    protected function redirect(string $location): void
    {
        throw new Exceptions\RedirectException($location);
    }

    protected function show404(?string $message = null): void
    {
        header('HTTP/1.1 404 Not Found');
        if ($message) {
            echo $message;
        }
 
        throw new Error404Exception($message ?? '');
    }
}