1 files changed, 70 insertions, 0 deletions
diff --git a/partials/site_status.php b/partials/site_status.php
new file mode 100644
index 0000000..c758186
--- /dev/null
+++ b/partials/site_status.php
@@ -0,0 +1,70 @@
+<?php
+
+function site_latest_update_timestamp(): int
+{
+    static $latest = null;
+    if ($latest !== null) {
+        return $latest;
+    }
+
+    $root = dirname(__DIR__);
+    $latest = 0;
+    $extensions = ['php' => true, 'html' => true, 'css' => true, 'js' => true, 'txt' => true];
+    $skipDirs = ['.git' => true, '.agents' => true, 'node_modules' => true, 'vendor' => true];
+
+    $iterator = new RecursiveIteratorIterator(
+        new RecursiveCallbackFilterIterator(
+            new RecursiveDirectoryIterator($root, FilesystemIterator::SKIP_DOTS),
+            static function (SplFileInfo $current) use ($skipDirs): bool {
+                if ($current->isDir()) {
+                    return !isset($skipDirs[$current->getFilename()]);
+                }
+                return true;
+            }
+        )
+    );
+
+    foreach ($iterator as $file) {
+        if (!$file->isFile()) {
+            continue;
+        }
+        $extension = strtolower($file->getExtension());
+        if (!isset($extensions[$extension])) {
+            continue;
+        }
+        $mtime = @filemtime($file->getPathname());
+        if ($mtime && $mtime > $latest) {
+            $latest = $mtime;
+        }
+    }
+
+    return $latest;
+}
+
+function site_update_status(): array
+{
+    $timezone = new DateTimeZone('America/New_York');
+    $latest = site_latest_update_timestamp();
+    $date = $latest
+        ? (new DateTimeImmutable('@' . $latest))->setTimezone($timezone)->format('Y-m-d')
+        : (new DateTimeImmutable('now', $timezone))->format('Y-m-d');
+    $today = (new DateTimeImmutable('now', $timezone))->format('Y-m-d');
+
+    return [
+        'date' => $date,
+        'updated_today' => $date === $today,
+    ];
+}
+
+function render_site_update_status(string $class = 'site-status-row'): void
+{
+    $status = site_update_status();
+    $date = htmlspecialchars($status['date'], ENT_QUOTES, 'UTF-8');
+    $label = $status['updated_today'] ? 'Updated today: check the changelog' : 'View changelog';
+    ?>
+    <div class="<?= htmlspecialchars($class, ENT_QUOTES, 'UTF-8') ?>" aria-label="Site status">
+      <span>Last updated: <time datetime="<?= $date ?>"><?= $date ?></time></span>
+      <a href="https://www.sillylaird.ca/changelog/"><?= htmlspecialchars($label, ENT_QUOTES, 'UTF-8') ?></a>
+    </div>
+    <?php
+}