From 8291a8637337ec9ba3949f90e8f908d36482527b Mon Sep 17 00:00:00 2001
From: Ruben <post@rubensolvang.no>
Date: Sun, 30 Nov 2025 22:26:37 +0100
Subject: [PATCH] Add language prefix support to cached markdown rendering

Add language prefix parameter to cache functions Update
renderContentFile to handle language prefixes Add language prefix to
internal links in markdown Make template variables available to PHP
content files
---
 app/cache.php     |  8 ++++----
 app/rendering.php | 40 +++++++++++++++++++++++++++++-----------
 2 files changed, 33 insertions(+), 15 deletions(-)

diff --git a/app/cache.php b/app/cache.php
index 69eee48..e0f2624 100644
--- a/app/cache.php
+++ b/app/cache.php
@@ -1,9 +1,9 @@
 <?php
 
-function getCachedMarkdown(string $filePath): ?string {
+function getCachedMarkdown(string $filePath, string $langPrefix = ''): ?string {
     $cacheDir = '/tmp/folderweb_cache';
     $mtime = filemtime($filePath);
-    $cacheKey = md5($filePath . $mtime);
+    $cacheKey = md5($filePath . $mtime . $langPrefix);
     $cachePath = "$cacheDir/$cacheKey";
     
     if (file_exists($cachePath)) {
@@ -13,14 +13,14 @@ function getCachedMarkdown(string $filePath): ?string {
     return null;
 }
 
-function setCachedMarkdown(string $filePath, string $html): void {
+function setCachedMarkdown(string $filePath, string $html, string $langPrefix = ''): void {
     $cacheDir = '/tmp/folderweb_cache';
     if (!is_dir($cacheDir)) {
         mkdir($cacheDir, 0755, true);
     }
     
     $mtime = filemtime($filePath);
-    $cacheKey = md5($filePath . $mtime);
+    $cacheKey = md5($filePath . $mtime . $langPrefix);
     $cachePath = "$cacheDir/$cacheKey";
     
     file_put_contents($cachePath, $html);
diff --git a/app/rendering.php b/app/rendering.php
index 4da9798..f197a37 100644
--- a/app/rendering.php
+++ b/app/rendering.php
@@ -1,16 +1,19 @@
 <?php
 
-function renderContentFile(string $filePath): string {
+function renderContentFile(string $filePath, ?Context $ctx = null): string {
     $ext = pathinfo($filePath, PATHINFO_EXTENSION);
 
     ob_start();
     if ($ext === 'md') {
         require_once __DIR__ . '/cache.php';
-        $cached = getCachedMarkdown($filePath);
+        $langPrefix = $ctx ? $ctx->get('langPrefix', '') : '';
+        $cached = getCachedMarkdown($filePath, $langPrefix);
 
         if ($cached !== null) {
             echo $cached;
         } else {
+            // Update to newer versions before PHP 9.0 release
+            // Current versions have been patched for PHP 8.4+ compatibility
             if (!class_exists('Parsedown')) {
                 require_once __DIR__ . '/vendor/Parsedown.php';
             }
@@ -18,10 +21,25 @@ function renderContentFile(string $filePath): string {
                 require_once __DIR__ . '/vendor/ParsedownExtra.php';
             }
             $html = '<article>' . (new ParsedownExtra())->text(file_get_contents($filePath)) . '</article>';
-            setCachedMarkdown($filePath, $html);
+            
+            // Add language prefix to internal links
+            if ($langPrefix) {
+                $html = preg_replace(
+                    '/href="(\/[^"]*)"/', 
+                    'href="' . $langPrefix . '$1"', 
+                    $html
+                );
+            }
+            
+            setCachedMarkdown($filePath, $html, $langPrefix);
             echo $html;
         }
     } elseif (in_array($ext, ['html', 'php'])) {
+        // Make template variables available to PHP content files
+        if ($ctx !== null && $ext === 'php') {
+            $templateVars = Hooks::apply(Hook::TEMPLATE_VARS, [], $ctx);
+            extract($templateVars);
+        }
         include $filePath;
     }
     return ob_get_clean();
@@ -29,12 +47,12 @@ function renderContentFile(string $filePath): string {
 
 function renderTemplate(Context $ctx, string $content, int $statusCode = 200): void {
     global $GLOBALS;
-    
+
     // Get basic template vars
     $navigation = $ctx->navigation;
     $homeLabel = $ctx->homeLabel;
     $pageTitle = null;
-    
+
     // Let plugins add template variables
     $templateVars = Hooks::apply(Hook::TEMPLATE_VARS, [
         'content' => $content,
@@ -42,7 +60,7 @@ function renderTemplate(Context $ctx, string $content, int $statusCode = 200): v
         'homeLabel' => $homeLabel,
         'pageTitle' => $pageTitle
     ], $ctx);
-    
+
     extract($templateVars);
 
     http_response_code($statusCode);
@@ -59,7 +77,7 @@ function renderFile(Context $ctx, string $filePath): void {
     $ext = pathinfo($realPath, PATHINFO_EXTENSION);
 
     if (in_array($ext, CONTENT_EXTENSIONS)) {
-        $content = renderContentFile($realPath);
+        $content = renderContentFile($realPath, $ctx);
 
         $pageDir = dirname($realPath);
         $pageMetadata = loadMetadata($pageDir);
@@ -97,7 +115,7 @@ function renderFile(Context $ctx, string $filePath): void {
             'pageCssHash' => $pageCssHash,
             'socialImageUrl' => $socialImageUrl
         ], $ctx);
-        
+
         extract($templateVars);
 
         // Wrap content with page template
@@ -116,11 +134,11 @@ function renderFile(Context $ctx, string $filePath): void {
 function renderMultipleFiles(Context $ctx, array $files, string $pageDir): void {
     $content = '';
     foreach ($files as $file) {
-        $content .= renderContentFile($file);
+        $content .= renderContentFile($file, $ctx);
     }
 
     $pageMetadata = loadMetadata($pageDir);
-    
+
     // Load page-level plugins
     getPluginManager()->loadPagePlugins($pageMetadata);
 
@@ -154,7 +172,7 @@ function renderMultipleFiles(Context $ctx, array $files, string $pageDir): void
         'pageCssHash' => $pageCssHash,
         'socialImageUrl' => $socialImageUrl
     ], $ctx);
-    
+
     extract($templateVars);
 
     // Wrap content with page template