<?php

  if (!function_exists('setupPageMetadata')) {
    function setupPageMetadata(array $page, string $requestUri): array
    {
      $globals = $page['globals'] ?? [];

      $title = htmlspecialchars($page["metadata"]["title"] ?? "", ENT_QUOTES, "UTF-8");
      $description = htmlspecialchars($page["metadata"]["description"] ?? "", ENT_QUOTES, "UTF-8");
      $image = htmlspecialchars(
        $page["metadata"]["open_graph_image"] ?? $globals["metadata"]["open_graph_image"] ?? "",
        ENT_QUOTES,
        "UTF-8"
      );
      $fullUrl = $globals["url"] . $requestUri;
      $oembedUrl = $globals["url"] . "/oembed" . $requestUri;

      return [
        'pageTitle' => $title,
        'pageDescription' => $description,
        'ogImage' => $image,
        'fullUrl' => $fullUrl,
        'oembedUrl' => $oembedUrl,
        'globals' => $globals
      ];
    }
  }

  if (!function_exists('cleanMeta')) {
    function cleanMeta($value)
    {
      $value = trim($value ?? '');
      $value = str_replace(["\r", "\n"], ' ', $value);
      $value = preg_replace('/\s+/', ' ', $value);
      return htmlspecialchars($value, ENT_QUOTES, 'UTF-8');
    }
  }

?>