$dstR) {
$cropH = $sh; $cropW = (int)($sh * $dstR);
$cropX = (int)(($sw - $cropW) / 2); $cropY = 0;
} else {
$cropW = $sw; $cropH = (int)($sw / $dstR);
$cropX = 0; $cropY = (int)(($sh - $cropH) / 2);
}
$thumb = imagecreatetruecolor($tw, $th);
imagecopyresampled($thumb, $src, 0, 0, $cropX, $cropY, $tw, $th, $cropW, $cropH);
if (!is_dir($thumbDir)) mkdir($thumbDir, 0755, true);
imagejpeg($thumb, $thumbPath, 85);
imagedestroy($src); imagedestroy($thumb);
return THUMB_DIR . '/' . $thumbName;
} catch (Exception $e) { return null; }
}
/** Inline SVG placeholder for non-image files. */
function placeholderSvg(): string {
return "data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='400' height='400' viewBox='0 0 400 400'%3E%3Crect width='400' height='400' fill='%23e8ecf1'/%3E%3Cg fill='%2394a3b8'%3E%3Crect x='155' y='130' width='90' height='110' rx='6'/%3E%3Crect x='170' y='155' width='60' height='8' rx='3'/%3E%3Crect x='170' y='172' width='45' height='8' rx='3'/%3E%3Crect x='170' y='189' width='52' height='8' rx='3'/%3E%3Crect x='170' y='206' width='38' height='8' rx='3'/%3E%3C/g%3E%3C/svg%3E";
}
/** Returns the filename for a given page number (1 → index.html, 2 → index_2.html). */
function pageFile(int $page): string {
return $page === 1 ? 'index.html' : "index_{$page}.html";
}
// ─── Shared styles ────────────────────────────────────────────────────────────
function sharedStyles(): string {
return <<<'CSS'
CSS;
}
// ─── Render pagination block ──────────────────────────────────────────────────
function renderPagination(int $current, int $total): string {
if ($total <= 1) return '';
$chevL = '';
$chevR = '';
$out = '' . "\n";
return $out;
}
// ─── Generate pages for a category subdirectory ───────────────────────────────
function generateCategoryPages(
string $catDir,
string $catName,
array $files,
array $imageExts
): void {
$thumbDir = $catDir . '/' . THUMB_DIR;
$totalFiles = count($files);
$totalPages = max(1, (int)ceil($totalFiles / PER_PAGE));
$displayName = ucwords(str_replace(['-','_'], ' ', $catName));
$styles = sharedStyles();
// Remove stale pagination files from a previous run
foreach (glob($catDir . '/index_*.html') as $old) unlink($old);
for ($page = 1; $page <= $totalPages; $page++) {
$slice = array_slice($files, ($page - 1) * PER_PAGE, PER_PAGE);
$start = ($page - 1) * PER_PAGE + 1;
$end = min($page * PER_PAGE, $totalFiles);
$tilesHtml = '';
foreach ($slice as $i => $file) {
$isImg = isImage($file, $imageExts);
$srcPath = $catDir . '/' . $file;
$ext = strtoupper(pathinfo($file, PATHINFO_EXTENSION)) ?: 'FILE';
$label = htmlspecialchars($file);
$delay = $i * 50;
if ($isImg) {
$thumb = makeThumbnail($srcPath, $thumbDir, $file);
$thumbSrc = $thumb ? htmlspecialchars($thumb) : $label;
$href = htmlspecialchars($file);
$tilesHtml .= <<
{$label}
{$ext}
HTML;
} else {
$ph = placeholderSvg();
$href = htmlspecialchars($file);
$tilesHtml .= <<
{$label}
{$ext}
HTML;
}
}
$pageLabel = $totalPages > 1 ? " — Page {$page} of {$totalPages}" : '';
$countLabel = $totalFiles === 1 ? '1 file' : "{$totalFiles} files";
$rangeLabel = $totalPages > 1
? "Showing {$start}–{$end} of {$totalFiles} files"
: $countLabel;
$pagination = renderPagination($page, $totalPages);
$filename = pageFile($page);
$html = <<
{$displayName}{$pageLabel} — Gallery
{$styles}
{$pagination}
Category
{$displayName}
{$rangeLabel}
HTML;
file_put_contents($catDir . '/' . $filename, $html);
}
$pl = $totalPages === 1 ? '1 page' : "{$totalPages} pages";
echo " ✔ categories/{$catName}/ — {$totalFiles} items, {$pl}\n";
}
// ─── Generate root index pages ────────────────────────────────────────────────
function generateRootPages(array $categories): void {
$catList = array_values($categories);
$total = count($catList);
$totalPages = max(1, (int)ceil($total / PER_PAGE));
$styles = sharedStyles();
// Extra styles only needed on the root page
$extraCss = <<<'CSS'
CSS;
// Remove stale pagination files from a previous run
foreach (glob(__DIR__ . '/index_*.html') as $old) unlink($old);
for ($page = 1; $page <= $totalPages; $page++) {
$slice = array_slice($catList, ($page - 1) * PER_PAGE, PER_PAGE);
$start = ($page - 1) * PER_PAGE + 1;
$end = min($page * PER_PAGE, $total);
$tilesHtml = '';
foreach ($slice as $i => $info) {
$catName = $info['name'];
$displayName = ucwords(str_replace(['-','_'], ' ', $catName));
$href = htmlspecialchars('categories/' . $catName . '/index.html');
$countLabel = $info['count'] === 1 ? '1 file' : "{$info['count']} files";
$delay = $i * 60;
if ($info['cover']) {
$thumbPath = 'categories/' . $catName . '/' . THUMB_DIR . '/' .
pathinfo($info['cover'], PATHINFO_FILENAME) . '_thumb.jpg';
$thumbFull = __DIR__ . '/' . $thumbPath;
$thumbSrc = file_exists($thumbFull)
? htmlspecialchars($thumbPath)
: htmlspecialchars('categories/' . $catName . '/' . $info['cover']);
$alt = htmlspecialchars("Cover: {$displayName}");
$tilesHtml .= <<
{$displayName}
{$countLabel}
HTML;
} else {
$ph = placeholderSvg();
$tilesHtml .= <<
{$displayName}
{$countLabel}
HTML;
}
}
$pageLabel = $totalPages > 1 ? " — Page {$page} of {$totalPages}" : '';
$catLabel = $total === 1 ? '1 category' : "{$total} categories";
$rangeLabel = $totalPages > 1
? "Showing {$start}–{$end} of {$total} categories"
: "A curated collection across {$catLabel}";
$pagination = renderPagination($page, $totalPages);
$filename = pageFile($page);
$html = <<
Gallery{$pageLabel} — Curated Visual Collection
{$styles}
{$extraCss}
{$pagination}
Collection
Gallery
{$rangeLabel}
HTML;
file_put_contents(__DIR__ . '/' . $filename, $html);
}
$pl = $totalPages === 1 ? '1 page' : "{$totalPages} pages";
echo " ✔ root index — {$total} categories, {$pl}\n";
}
// ─── Main ─────────────────────────────────────────────────────────────────────
echo "\n🖼 Gallery Generator\n";
echo str_repeat('─', 44) . "\n";
if (!is_dir(CATEGORIES_DIR)) {
echo "⚠ Directory 'categories/' not found in " . __DIR__ . "\n";
echo " Creating sample structure...\n\n";
foreach (['nature', 'architecture', 'portraits'] as $cat) {
$dir = CATEGORIES_DIR . '/' . $cat;
mkdir($dir, 0755, true);
file_put_contents($dir . '/README.txt', "Place images here ({$cat}).");
}
echo " Folders created. Add images and run the script again.\n\n";
exit(0);
}
// ── Scan categories ──
$categories = [];
foreach (glob(CATEGORIES_DIR . '/*', GLOB_ONLYDIR) as $catPath) {
$catName = basename($catPath);
if ($catName === THUMB_DIR) continue;
$files = [];
foreach (scandir($catPath) as $f) {
if ($f[0] === '.') continue;
if ($f === 'index.html') continue;
if (preg_match('/^index_\d+\.html$/', $f)) continue;
if (is_dir($catPath . '/' . $f)) continue;
$files[] = $f;
}
sort($files);
// Pick a random image as the category cover
$images = array_values(array_filter($files, function($f) use ($imageExtensions) { return isImage($f, $imageExtensions); }));
$cover = $images ? $images[array_rand($images)] : null;
$categories[$catName] = [
'name' => $catName,
'path' => $catPath,
'files' => $files,
'count' => count($files),
'cover' => $cover,
];
}
if (empty($categories)) {
echo "⚠ No subdirectories found inside 'categories/'. Aborting.\n\n";
exit(1);
}
echo "Found " . count($categories) . " categories (PER_PAGE=" . PER_PAGE . ").\n\n";
// Generate pages for each category
foreach ($categories as $catName => $info) {
echo "Processing: {$catName}/\n";
generateCategoryPages($info['path'], $catName, $info['files'], $imageExtensions);
}
echo "\nGenerating root index...\n";
generateRootPages($categories);
// ── Summary ──
echo "\n✅ Done!\n\n";
echo "Generated files:\n";
echo " index.html ← root (page 1)\n";
echo " index_2.html, … ← root (next pages, if any)\n";
foreach (array_keys($categories) as $c) {
$n = (int)ceil($categories[$c]['count'] / PER_PAGE);
echo " categories/{$c}/index.html\n";
if ($n > 1) echo " categories/{$c}/index_2.html … index_{$n}.html\n";
}
echo "\n";