190 lines
7.1 KiB
PHP
190 lines
7.1 KiB
PHP
<?php
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declare(strict_types=1);
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require_once __DIR__ . '/vendor/autoload.php';
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header('Content-Type: text/html; charset=UTF-8');
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if (PHP_SAPI !== 'cli') {
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$method = $_SERVER['REQUEST_METHOD'] ?? 'GET';
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if ($method !== 'GET') {
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http_response_code(405);
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header('Allow: GET');
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echo 'Method Not Allowed';
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exit;
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}
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$secPurpose = strtolower((string) ($_SERVER['HTTP_SEC_PURPOSE'] ?? ''));
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$purpose = strtolower((string) ($_SERVER['HTTP_PURPOSE'] ?? ''));
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$xMoz = strtolower((string) ($_SERVER['HTTP_X_MOZ'] ?? ''));
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$isSpeculative = str_contains($secPurpose, 'prefetch')
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|| str_contains($secPurpose, 'prerender')
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|| str_contains($purpose, 'prefetch')
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|| str_contains($purpose, 'prerender')
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|| str_contains($xMoz, 'prefetch');
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if (! $isSpeculative) {
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$secFetchMode = strtolower((string) ($_SERVER['HTTP_SEC_FETCH_MODE'] ?? ''));
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$secFetchDest = strtolower((string) ($_SERVER['HTTP_SEC_FETCH_DEST'] ?? ''));
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$secFetchUser = (string) ($_SERVER['HTTP_SEC_FETCH_USER'] ?? '');
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// Treat obvious non-navigation fetches as non-user document requests.
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if (($secFetchMode !== '' && $secFetchMode !== 'navigate')
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|| ($secFetchDest !== '' && $secFetchDest !== 'document')
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|| ($secFetchUser !== '' && $secFetchUser !== '?1')) {
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$isSpeculative = true;
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}
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}
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if ($isSpeculative) {
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http_response_code(204);
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header('X-Skipped-Generation: speculative-request');
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header('Cache-Control: no-store, no-cache, must-revalidate, max-age=0');
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exit;
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}
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}
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$startedAt = microtime(true);
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$apiKey = getenv('LLAMA_API_KEY') ?: '';
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$model = getenv('LLAMA_MODEL') ?: 'local-model';
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$maxTokens = (int) (getenv('LLAMA_MAX_TOKENS') ?: 4096);
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$reasoningEffort = getenv('LLAMA_REASONING_EFFORT') ?: 'none';
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$topicHint = isset($_GET['topic']) ? trim((string) $_GET['topic']) : '';
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$topicHint = mb_substr($topicHint, 0, 120);
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$seed = sprintf('seed-%08x%08x', random_int(0, 0xffffffff), random_int(0, 0xffffffff));
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$topicCategories = [
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'local restaurant landing page',
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'fitness coaching brand site',
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'travel destination mini-guide',
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'event festival one-page promo',
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'indie game launch page',
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'architect portfolio page',
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'music artist release page',
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'bookstore seasonal campaign',
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'pet adoption center homepage',
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'artisan coffee roaster website',
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'online course product page',
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'nonprofit donation campaign page',
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];
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$selectedCategory = $topicCategories[array_rand($topicCategories)];
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$bannedTerms = [
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'chrono',
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'temporal',
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'chrono-',
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'timewarp',
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'timescape',
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'timeshift',
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'quantum',
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'aether',
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'epoch',
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'singularity',
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];
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$bannedTermsList = implode(', ', $bannedTerms);
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$factory = OpenAI::factory()->withBaseUri('http://localhost:8080/v1');
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if ($apiKey !== '') {
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$factory = $factory->withApiKey($apiKey);
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}
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$client = $factory->make();
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$systemPrompt = <<<PROMPT
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You are a senior creative web designer and front-end engineer.
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Task:
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- On every run, first choose a unique page concept with a specific topic, visual theme, and style direction.
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- Then generate one complete, production-ready HTML document from scratch.
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Hard output rules:
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- Return only raw HTML. No markdown. No code fences. No explanations.
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- Output must begin with <!doctype html> and include full <html>, <head>, and <body>.
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- Use Tailwind CSS via CDN in the same HTML document.
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- Do not rely on local/external project files. Everything required must be inside this single HTML file.
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- Inline any custom CSS and JavaScript in <style> and <script> tags.
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- Make the page responsive and fully usable on mobile and desktop.
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- Include accessible semantic structure and visible focus states.
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Creative direction:
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- Avoid generic templates.
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- Use bold, intentional typography and layout.
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- Include subtle but meaningful animation/interaction.
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- Provide complete content, not placeholder lorem ipsum.
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Diversity constraints:
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- Do not make a sci-fi, futuristic, or time-themed website unless the user explicitly asks for it.
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- Avoid these words in brand names, title, headings, and body copy: {$bannedTermsList}
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- If no topic is provided by user, choose a grounded real-world business/topic from the requested category.
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PROMPT;
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$userPrompt = 'Create a complete one-page website now. Use random token: ' . $seed . '.';
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if ($topicHint === '') {
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$userPrompt .= ' Required category for this run: ' . $selectedCategory . '.';
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}
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if ($topicHint !== '') {
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$userPrompt .= ' Topic request: ' . $topicHint . '.';
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}
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$request = [
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'model' => $model,
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'temperature' => 0.95,
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'top_p' => 0.95,
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'max_tokens' => $maxTokens,
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'messages' => [
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['role' => 'system', 'content' => $systemPrompt],
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['role' => 'user', 'content' => $userPrompt],
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],
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'reasoning_effort' => $reasoningEffort,
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];
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try {
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$response = $client->chat()->create($request);
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$html = trim((string) ($response->choices[0]->message->content ?? ''));
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if ($topicHint === '' && preg_match('/\b(?:chrono\w*|temporal\w*|quantum\w*|aether\w*|epoch\w*|singularity\w*|timeshift\w*|timescape\w*|timewarp\w*)\b/i', $html) === 1) {
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$request['messages'][] = [
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'role' => 'system',
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'content' => 'Retry with a completely different, non-sci-fi, non-time-themed concept. Do not use banned words.',
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];
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$response = $client->chat()->create($request);
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$html = trim((string) ($response->choices[0]->message->content ?? ''));
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}
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$elapsedSeconds = number_format(microtime(true) - $startedAt, 2);
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// If the model wraps output in a markdown fence, unwrap it safely.
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if (preg_match('/^```(?:html)?\s*(.*?)\s*```$/is', $html, $matches) === 1) {
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$html = $matches[1];
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}
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if ($html === '' || stripos($html, '<html') === false) {
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throw new RuntimeException('Model did not return a full HTML document.');
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}
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$timingBlock = '<div style="position:fixed;right:12px;bottom:12px;z-index:2147483647;background:rgba(17,24,39,.92);color:#fff;padding:8px 10px;border-radius:10px;font:12px/1.3 ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;box-shadow:0 8px 20px rgba(0,0,0,.28)">Generated in ' . $elapsedSeconds . 's</div>';
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if (stripos($html, '</body>') !== false) {
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$html = preg_replace('/<\/body>/i', $timingBlock . '</body>', $html, 1) ?? ($html . $timingBlock);
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} else {
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$html .= $timingBlock;
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}
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echo $html;
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file_put_contents(__DIR__ . '/pages/' . sha1($seed) . '.html', $html);
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} catch (Throwable $e) {
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http_response_code(500);
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$message = htmlspecialchars($e->getMessage(), ENT_QUOTES | ENT_SUBSTITUTE, 'UTF-8');
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echo '<!doctype html><html><head><meta charset="UTF-8"><title>Generation Error</title>';
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echo '<script src="https://cdn.tailwindcss.com"></script></head><body class="min-h-screen bg-zinc-950 text-zinc-100 p-8">';
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echo '<h1 class="text-2xl font-bold mb-4">Page generation failed</h1>';
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echo '<p class="text-zinc-300 mb-3">' . $message . '</p>';
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echo '<p class="text-zinc-400 text-sm">Tip: set LLAMA_MODEL to a loaded model and optionally pass ?topic=your-idea in the URL.</p>';
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echo '</body></html>';
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} |