<?php
// OPUS5 — Registry v2 (doctrine 82) — Fast mode
// Cache Redis 1h, scan léger (pas file_get_contents)
header('Content-Type: application/json');
$R = ['ts'=>date('c'), 'source'=>'opus5-registry'];

$refresh = !empty($_GET['refresh']);
$detail = !empty($_GET['detail']);

// Try Redis cache first
$redis = null;
$CACHE_KEY = 'wevia:opus5-registry:' . ($detail ? 'detail' : 'lite');
try {
    $redis = new Redis();
    if (!$redis->connect('127.0.0.1', 6379, 0.3)) { $redis = null; }
} catch (Throwable $e) { $redis = null; }

if (!$refresh && $redis) {
    $cached = $redis->get($CACHE_KEY);
    if ($cached) {
        $R = json_decode($cached, true);
        $R['cache'] = 'HIT';
        $R['served_at'] = date('c');
        if ($redis) $redis->close();
        echo json_encode($R, JSON_PRETTY_PRINT|JSON_UNESCAPED_UNICODE);
        exit;
    }
}
$R['cache'] = 'MISS';

$files = glob('/var/www/html/api/opus5-*.php') ?: [];
$endpoints = [];

foreach ($files as $f) {
    $name = basename($f, '.php');
    $ep = [
        'name' => $name,
        'url' => "/api/$name.php",
        'size_bytes' => @filesize($f),
        'mtime' => date('c', @filemtime($f))
    ];
    
    if ($detail) {
        // Only parse first 2KB for speed
        $handle = @fopen($f, 'r');
        if ($handle) {
            $head = @fread($handle, 2048);
            @fclose($handle);
            if (preg_match('/\/\/\s*OPUS5\s*[-\xe2][-\s]*(.+?)(?:\n|\r)/u', $head, $m)) {
                $ep['description'] = trim($m[1]);
            }
            if (preg_match('/doctrine\s*(\d+)/i', $head, $m)) {
                $ep['doctrine'] = (int)$m[1];
            }
        }
    }
    
    $endpoints[] = $ep;
}

if ($detail) {
    usort($endpoints, function($a, $b) {
        $da = $a['doctrine'] ?? 999; $db = $b['doctrine'] ?? 999;
        if ($da !== $db) return $da - $db;
        return strcmp($a['name'], $b['name']);
    });
}

$R['count'] = count($endpoints);
$R['endpoints'] = $endpoints;

// Wired intents
$wired = glob('/var/www/html/api/wired-pending/intent-opus4-*.php') ?: [];
$R['wired_intents_count'] = count($wired);
$R['wired_intents'] = array_map(function($f){
    return str_replace(['intent-opus4-', '.php'], '', basename($f));
}, $wired);

$R['doctrine'] = '82 — opus5 registry (factual list, Redis cached 1h)';

// Cache for 1h
if ($redis) {
    try { $redis->setex($CACHE_KEY, 3600, json_encode($R, JSON_UNESCAPED_UNICODE)); } catch (Throwable $e) {}
    $redis->close();
}

echo json_encode($R, JSON_PRETTY_PRINT|JSON_UNESCAPED_UNICODE);