<?php
/* ═══════════════════════════════════════════════════════════════════
   WTP UDOCK COVERAGE ENDPOINT · Opus 21-avr tour35
   Scans /var/www/html/*.html and returns JSON coverage stats
   Usage: GET /api/wtp-udock-coverage.php [?detail=1]
   ═══════════════════════════════════════════════════════════════════ */
header('Content-Type: application/json; charset=utf-8');
header('Cache-Control: public, max-age=60');
header('X-WTP-UDOCK-V', '1');

$DIR = '/var/www/html';
$NAV_PATTERNS = ['wtp-unified-dock.js', 'opus-xlinks', 'wtp-sidebar', 'v130-xnav'];
$EXCLUDE = ['.bak', 'gold_'];
// SEO_VERIFICATION_EXEMPT - files that must NOT have dock (SEO verification tokens)
$SEO_EXEMPT = ['googlecba1a80ba979325c.html', 'google-site-verification.html'];
// PUBLIC_EXEMPT - pages publiques (vitrine weval-consulting.com)
// Doctrine: le dock WTP_UDOCK est UNIQUEMENT pour les pages internes/outils
// JAMAIS sur pages user-facing externes (SEO landings, homepage, contact, etc.)
$PUBLIC_EXEMPT = ['index.html', 'contact.html', 'solutions.html', 'pricing.html', 'landing-industrie.html', 'landing-ocp.html', 'landing-banque.html', 'landing-retail.html', 'case-studies.html', 'use-cases.html', 'pitch.html', 'register.html', 'booking.html', 'apps.html', 'cgu.html', 'living-proof.html', 'ecosysteme-ia-maroc.html', 'intelligence-artificielle-france-consulting.html', 'consulting-intelligence-artificielle-maroc.html', 'consulting-pharma-supply-chain.html', 'consulting-sap-erp-vistex-maroc.html', 'crm-pharma-marketing-pharmaceutique.html', 'cybersécurité-maroc-audit-conseil.html', 'digitalisation-processus-gouvernance-it.html', 'erp-pme-eti-sap-odoo-sage.html', 'finance-controlling-sap-fico.html', 'formation-ia-sap-cloud-maroc.html', 'marketing-digital-maroc.html', 'offshore-nearshore-maroc-france-canada.html', 'recrutement-talent-it-maroc.html', 'transformation-digitale-consulting-france-international.html', 'achats-purchasing-sap-mm-procurement.html', 'bpm-automatisation-processus-métier.html', 'cloud-infrastructure-système-information.html', 'faq-techniques.html', 'faq-knowledge-base.html', 'candidates-pool.html', 'wepredict.html'];

$files = glob($DIR . '/*.html') ?: [];
$total = 0;
$covered = 0;
$by_pattern = array_fill_keys($NAV_PATTERNS, 0);
$uncovered = [];
$chattr_i_count = 0;

$detail = isset($_GET['detail']) && $_GET['detail'] === '1';

foreach ($files as $f) {
    $name = basename($f);
    $skip = false;
    foreach ($EXCLUDE as $ex) { if (strpos($name, $ex) !== false) { $skip = true; break; } }
    // SEO exempt: don't count these in total (they must stay minimal)
    if (in_array($name, $SEO_EXEMPT)) { $skip = true; }
    // Public pages exempt: doctrine "NAV JAMAIS sur pages vitrine publiques"
    if (in_array($name, $PUBLIC_EXEMPT)) { $skip = true; }
    if ($skip || strpos($name, '_') === 0) continue;
    $total++;
    
    $content = @file_get_contents($f);
    if ($content === false) continue;
    
    $has_nav = false;
    foreach ($NAV_PATTERNS as $pat) {
        if (strpos($content, $pat) !== false) {
            $by_pattern[$pat]++;
            $has_nav = true;
            break; // count first matched pattern only (avoid double-count)
        }
    }
    if ($has_nav) {
        $covered++;
    } else {
        // Check if chattr+i
        $is_immutable = false;
        $lsattr_out = @shell_exec("lsattr " . escapeshellarg($f) . " 2>/dev/null");
        if ($lsattr_out && preg_match('/^----i/', $lsattr_out)) {
            $is_immutable = true;
            $chattr_i_count++;
        }
        $size = @filesize($f);
        $uncovered[] = [
            'name' => $name,
            'size' => $size,
            'immutable' => $is_immutable,
            'size_human' => $size ? round($size/1024, 1) . ' KB' : '?'
        ];
    }
}

$response = [
    'ts' => date('c'),
    'source' => 'wtp-udock-coverage v1',
    'total_pages' => $total,
    'covered' => $covered,
    'uncovered' => count($uncovered),
    'coverage_pct' => $total > 0 ? round(100 * $covered / $total, 1) : 0,
    'by_pattern' => [
        'wtp-unified-dock.js' => $by_pattern['wtp-unified-dock.js'],
        'opus-xlinks' => $by_pattern['opus-xlinks'],
        'wtp-sidebar' => $by_pattern['wtp-sidebar'],
        'v130-xnav' => $by_pattern['v130-xnav']
    ],
    'immutable_blocked' => $chattr_i_count,
    'target_100pct_remaining' => $total - $covered
];

if ($detail) {
    // Sort uncovered by size desc, take top 30
    usort($uncovered, function($a, $b) { return ($b['size'] ?? 0) - ($a['size'] ?? 0); });
    $response['uncovered_top30'] = array_slice($uncovered, 0, 30);
}

echo json_encode($response, JSON_PRETTY_PRINT | JSON_UNESCAPED_UNICODE);