<?php
// Patcher v2 · étend anchors pour saas-chat + claude-pattern-api
// Doctrine 141+142 application finale

header('Content-Type: application/json');

function patch_chatbot_v2(string $file, string $chat_id, array $extra_msg_captures = []): array {
    if (!file_exists($file)) return ['ok'=>false, 'err'=>'not found'];
    
    $content = file_get_contents($file);
    
    // Skip if already patched
    if (strpos($content, 'DOCTRINE-141-SHUTDOWN') !== false || strpos($content, 'DOCTRINE-141-INLINE') !== false) {
        return ['ok'=>false, 'err'=>'already patched'];
    }
    
    // Check chattr
    $attr = shell_exec("lsattr $file 2>&1");
    if (strpos($attr, 'i') !== false && strpos($attr, '----i') !== false) {
        shell_exec("sudo chattr -i $file 2>/dev/null");
    }
    
    // Backup
    $backup = '/var/www/html/vault-gold/opus/' . basename($file) . '.doctrine141-' . date('Ymd-His') . '.bak';
    @mkdir(dirname($backup), 0755, true);
    copy($file, $backup);
    
    // === Bloc à injecter (même que v1) ===
    $inject = "\n// === DOCTRINE-141-SHUTDOWN · memory bridge ===
if (@file_exists(__DIR__.'/wevia-memory-bridge.php')) { @require_once __DIR__.'/wevia-memory-bridge.php'; }
\$__chat_id = '" . $chat_id . "';
\$__user_id = \$_COOKIE['weval_chat_session'] ?? \$_SERVER['HTTP_X_USER_ID'] ?? ('anon-'.substr(md5((\$_SERVER['REMOTE_ADDR']??'').(\$_SERVER['HTTP_USER_AGENT']??'')),0,12));
\$__msg_for_mem = '';
register_shutdown_function(function() use (&\$__msg_for_mem, \$__chat_id, \$__user_id) {
    if (!function_exists('wevia_mem_save')) return;
    \$out = ob_get_contents();
    if (!\$out) return;
    \$d = @json_decode(\$out, true);
    \$resp = is_array(\$d) ? (\$d['response'] ?? \$d['answer'] ?? \$d['content'] ?? '') : \$out;
    if (\$resp && \$__msg_for_mem) {
        @wevia_mem_save(\$__chat_id, \$__user_id, \$__msg_for_mem, is_string(\$resp)?\$resp:json_encode(\$resp), 'internal');
    }
});
ob_start();
// === /DOCTRINE-141-SHUTDOWN ===
\n";
    
    // === Anchors étendus (v2) ===
    $anchors = [
        // v1 anchors (doubles quotes)
        '$input = json_decode(file_get_contents("php://input"), true) ?: [];',
        '$input = @json_decode(file_get_contents("php://input"), true) ?: [];',
        '$raw = @file_get_contents("php://input");',
        // v2 NEW anchors (simples quotes)
        "\$input=json_decode(file_get_contents('php://input'),true);",
        "\$input = json_decode(file_get_contents('php://input'), true) ?: [];",
        "\$input = json_decode(file_get_contents('php://input'), true);",
        "\$input = @json_decode(file_get_contents('php://input'), true) ?: [];",
    ];
    
    $injected = false;
    foreach ($anchors as $anchor) {
        $pos = strpos($content, $anchor);
        if ($pos !== false) {
            $end = strpos($content, "\n", $pos) + 1;
            $before = substr($content, 0, $end);
            $after = substr($content, $end);
            $content = $before . $inject . $after;
            $injected = true;
            break;
        }
    }
    
    if (!$injected) {
        shell_exec("sudo chattr +i $file 2>/dev/null");
        return ['ok'=>false, 'err'=>'no anchor found'];
    }
    
    // Msg captures (v1 + v2 extended)
    $msg_captures = array_merge([
        ['old' => '$msg = $input["message"] ?? $_GET["message"] ?? "";',
         'new' => '$msg = $input["message"] ?? $_GET["message"] ?? ""; $__msg_for_mem = $msg;'],
        ['old' => '$msg = trim($in["message"] ?? "");',
         'new' => '$msg = trim($in["message"] ?? ""); $__msg_for_mem = $msg;'],
        // v2: saas-chat style (simples quotes)
        ['old' => "\$msg=\$input['message']??\$_POST['message']??'';",
         'new' => "\$msg=\$input['message']??\$_POST['message']??''; \$__msg_for_mem = \$msg;"],
        // v2: claude-pattern style
        ['old' => "\$message = trim(\$input['message'] ?? '');",
         'new' => "\$message = trim(\$input['message'] ?? ''); \$__msg_for_mem = \$message;"],
    ], $extra_msg_captures);
    
    $capture_ok = false;
    foreach ($msg_captures as $cap) {
        if (strpos($content, $cap['old']) !== false) {
            $content = str_replace($cap['old'], $cap['new'], $content);
            $capture_ok = true;
            break;
        }
    }
    
    // Lint
    $tmp = tempnam('/tmp', 'cbv2-');
    file_put_contents($tmp, $content);
    $lint = shell_exec("php -l $tmp 2>&1");
    if (strpos($lint, 'No syntax errors') === false) {
        unlink($tmp);
        shell_exec("sudo chattr +i $file 2>/dev/null");
        return ['ok'=>false, 'err'=>'lint fail', 'lint'=>$lint];
    }
    
    // Write
    file_put_contents($file, $content);
    shell_exec("sudo chown www-data:www-data $file");
    shell_exec("sudo chattr +i $file 2>/dev/null");
    unlink($tmp);
    
    return ['ok'=>true, 'backup'=>$backup, 'chat_id'=>$chat_id, 'capture_applied'=>$capture_ok];
}

$results = [
    'saas-chat' => patch_chatbot_v2('/var/www/html/api/saas-chat.php', 'saas-chat'),
    'claude-pattern-api' => patch_chatbot_v2('/var/www/html/api/claude-pattern-api.php', 'claude-pattern-api'),
];

@opcache_reset();

// Tests sanity
foreach (['saas-chat', 'claude-pattern-api'] as $name) {
    if ($results[$name]['ok'] ?? false) {
        $sess = 'opus-ph6-' . $name;
        $test = shell_exec("curl -sk -m 8 'http://localhost/api/$name.php' -H 'Content-Type: application/json' -H 'X-User-Id: $sess' -d '{\"message\":\"hello test phase 6\"}' 2>&1 | head -c 200");
        $results[$name]['test'] = trim($test);
        sleep(1);
        // Check Redis
        if (file_exists('/var/www/html/api/wevia-memory-bridge.php')) {
            require_once '/var/www/html/api/wevia-memory-bridge.php';
            $hist = wevia_mem_load($name, $sess, 5);
            $results[$name]['redis_msgs'] = count($hist);
        }
    }
}

echo json_encode($results, JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES);