folderweb/app/rendering.php

<?php

function renderContentFile(string $filePath): string {
    $ext = pathinfo($filePath, PATHINFO_EXTENSION);
    
    ob_start();
    if ($ext === 'md') {
        require_once __DIR__ . '/cache.php';
        $cached = getCachedMarkdown($filePath);
        
        if ($cached !== null) {
            echo $cached;
        } else {
            if (!class_exists('Parsedown')) {
                require_once __DIR__ . '/vendor/Parsedown.php';
            }
            $html = '<article>' . (new Parsedown())->text(file_get_contents($filePath)) . '</article>';
            setCachedMarkdown($filePath, $html);
            echo $html;
        }
    } elseif (in_array($ext, ['html', 'php'])) {
        include $filePath;
    }
    return ob_get_clean();
}

function renderTemplate(Context $ctx, string $content, int $statusCode = 200): void {
    // Extract all necessary variables for base template
    $currentLang = $ctx->currentLang;
    $navigation = $ctx->navigation;
    $homeLabel = $ctx->homeLabel;
    $translations = $ctx->translations;
    $pageTitle = null; // No specific page title for error pages
    
    http_response_code($statusCode);
    include $ctx->templates->base;
    exit;
}

function renderFile(Context $ctx, string $filePath): void {
    $realPath = realpath($filePath);
    if (!$realPath || !str_starts_with($realPath, $ctx->contentDir) || !is_readable($realPath)) {
        renderTemplate($ctx, "<article><h1>403 Forbidden</h1><p>Access denied.</p></article>", 403);
    }

    $ext = pathinfo($realPath, PATHINFO_EXTENSION);

    if (in_array($ext, CONTENT_EXTENSIONS)) {
        $content = renderContentFile($realPath);

        // Prepare template variables using property hooks
        $currentLang = $ctx->currentLang;
        $navigation = $ctx->navigation;
        $homeLabel = $ctx->homeLabel;
        $translations = $ctx->translations;
        
        $pageDir = dirname($realPath);
        $pageMetadata = loadMetadata($pageDir, $ctx->currentLang, $ctx->defaultLang);
        $pageTitle = $pageMetadata['title'] ?? null;
        $metaDescription = extractMetaDescription($pageDir, $pageMetadata, $ctx->currentLang, $ctx->defaultLang);

        // Wrap content with page template
        ob_start();
        include $ctx->templates->page;
        $content = ob_get_clean();

        // Wrap with base template
        include $ctx->templates->base;
        exit;
    }

    // Serve other file types directly
    header('Content-Type: ' . (mime_content_type($realPath) ?: 'application/octet-stream'));
    readfile($realPath);
    exit;
}

function renderMultipleFiles(Context $ctx, array $filePaths, string $pageDir): void {
    // Validate all files are safe
    foreach ($filePaths as $filePath) {
        $realPath = realpath($filePath);
        if (!$realPath || !str_starts_with($realPath, $ctx->contentDir) || !is_readable($realPath)) {
            renderTemplate($ctx, "<article><h1>403 Forbidden</h1><p>Access denied.</p></article>", 403);
        }
    }

    // Render all content files in order
    $content = implode('', array_map('renderContentFile', $filePaths));

    // Prepare template variables using property hooks
    $currentLang = $ctx->currentLang;
    $navigation = $ctx->navigation;
    $homeLabel = $ctx->homeLabel;
    $translations = $ctx->translations;
    
    $pageMetadata = loadMetadata($pageDir, $ctx->currentLang, $ctx->defaultLang);
    $pageTitle = $pageMetadata['title'] ?? null;
    $metaDescription = extractMetaDescription($pageDir, $pageMetadata, $ctx->currentLang, $ctx->defaultLang);

    // Wrap content with page template
    ob_start();
    include $ctx->templates->page;
    $content = ob_get_clean();

    // Wrap with base template
    include $ctx->templates->base;
    exit;
}