<?php
/**
 * wtp-pages-enriched.php v2 — Doctrine 155
 * Endpoint enrichi pour pages WTP: thumb_url (md5 path), title, description, category
 * Thumbs conventions: wem-thumb-worker key = path, hash = md5(path)
 */
header('Content-Type: application/json');
header('Cache-Control: public, max-age=300');

$HTML_ROOT = '/var/www/html';
$THUMB_DIR = $HTML_ROOT . '/api/screenshots/wem';
$THUMB_URL = '/api/screenshots/wem';

function getPageMeta($path) {
    if (!file_exists($path)) return null;
    $size = min(filesize($path), 50000);
    $fp = fopen($path, 'r');
    $content = fread($fp, $size);
    fclose($fp);
    $title = ''; $desc = '';
    if (preg_match('/<title[^>]*>([^<]+)<\/title>/i', $content, $m)) {
        $title = trim(html_entity_decode($m[1]));
    }
    if (preg_match('/<meta[^>]+name=["\']description["\'][^>]+content=["\']([^"\']+)["\']/i', $content, $m)) {
        $desc = trim(html_entity_decode($m[1]));
    }
    return [
        'title' => mb_substr($title, 0, 120),
        'description' => mb_substr($desc, 0, 200),
        'last_modified' => date('Y-m-d', filemtime($path))
    ];
}

function findThumbMd5($name, $thumbDir, $thumbUrl) {
    // wem-thumb-worker.py: key = path (name without leading /), hash = md5(key)
    $hash = md5($name);
    $thumb = "$thumbDir/$hash.png";
    if (file_exists($thumb)) return "$thumbUrl/$hash.png";
    return null;
}

$start = microtime(true);
$html_files = glob($HTML_ROOT . '/*.html');
$all_pages = [];
$total = 0; $with_thumb = 0; $with_meta = 0;

foreach ($html_files as $f) {
    $name = basename($f);
    if (strpos($name, '-gold') !== false || strpos($name, '.bak') !== false) continue;
    $meta = getPageMeta($f);
    $thumb = findThumbMd5($name, $THUMB_DIR, $THUMB_URL);
    $page = [
        'name' => $name,
        'url' => '/' . $name,
        'size_kb' => round(filesize($f) / 1024, 1),
        'thumb_url' => $thumb,
        'title' => $meta['title'] ?: str_replace(['-', '_', '.html'], [' ', ' ', ''], $name),
        'description' => $meta['description'] ?? '',
        'last_modified' => $meta['last_modified'] ?? date('Y-m-d', filemtime($f)),
    ];
    $all_pages[] = $page;
    $total++;
    if ($thumb) $with_thumb++;
    if (!empty($meta['description'])) $with_meta++;
}

// Categorization improved
$categories = [
    'Hubs & Centers' => [],
    'Dashboards & Monitoring' => [],
    'Agents & AI' => [],
    'Admin & Ops' => [],
    'Business & CRM' => [],
    'WEVADS Email Legacy' => [],
    'Integration & APIs' => [],
    'Proofs & Tests' => [],
    'Public & Marketing' => [],
    'Autre' => [],
];

foreach ($all_pages as $p) {
    $n = strtolower($p['name']);
    if (preg_match('/hub|center\b|registry/', $n)) $categories['Hubs & Centers'][] = $p;
    elseif (preg_match('/dashboard|monitor|metric|kpi|analytics/', $n)) $categories['Dashboards & Monitoring'][] = $p;
    elseif (preg_match('/agent|bot|brain|cortex|l99|wevia|claude|ia-|-ia|gpt/', $n)) $categories['Agents & AI'][] = $p;
    elseif (preg_match('/admin|ops|config|setup|install|deploy/', $n)) $categories['Admin & Ops'][] = $p;
    elseif (preg_match('/crm|sales|customer|client|lead|opportunity/', $n)) $categories['Business & CRM'][] = $p;
    elseif (preg_match('/wevads|pmta|email-|-email|smtp|mail-|deliv/', $n)) $categories['WEVADS Email Legacy'][] = $p;
    elseif (preg_match('/api-|integration|connect|webhook|bridge/', $n)) $categories['Integration & APIs'][] = $p;
    elseif (preg_match('/proof|test-|-test|playwright|e2e|verify/', $n)) $categories['Proofs & Tests'][] = $p;
    elseif (preg_match('/landing|home|about|contact|pricing|index|intro/', $n)) $categories['Public & Marketing'][] = $p;
    else $categories['Autre'][] = $p;
}

// Sort each category by size desc
foreach ($categories as $k => &$v) {
    usort($v, fn($a, $b) => $b['size_kb'] <=> $a['size_kb']);
}
unset($v);

$elapsed = round((microtime(true) - $start) * 1000, 1);

echo json_encode([
    'ok' => true,
    'doctrine' => '155',
    'ts' => date('c'),
    'elapsed_ms' => $elapsed,
    'stats' => [
        'total_pages' => $total,
        'with_thumb' => $with_thumb,
        'with_meta' => $with_meta,
        'thumb_coverage_pct' => round($with_thumb / max(1, $total) * 100, 1),
        'meta_coverage_pct' => round($with_meta / max(1, $total) * 100, 1),
        'categories_count' => count(array_filter($categories)),
        'categories_populated' => array_filter($categories, fn($v) => count($v) > 0) ? count(array_filter($categories, fn($v) => count($v) > 0)) : 0,
    ],
    'category_counts' => array_map('count', $categories),
    'categories' => $categories,
], JSON_UNESCAPED_SLASHES);