<?php
// Injection autowire dans weval-chatbot-api.php - handler early-v3 "chat naturel"
header('Content-Type: application/json');
$R = ['steps'=>[], 'ok'=>false];

$SRC = '/var/www/weval/wevia-ia/weval-chatbot-api.php';
$MARKER = 'OPUS4-AUTOWIRE-CHATBOT-v1';
$TS = date('Ymd-Hi');

$content = file_get_contents($SRC);
$R['steps'][] = ['read' => strlen($content).'B'];

if (strpos($content, $MARKER) !== false) {
    $R['ok'] = true; $R['steps'][] = ['already_applied' => true];
    die(json_encode($R, JSON_PRETTY_PRINT));
}

// GOLD
$GOLD = "/opt/wevads/vault/weval-chatbot-api-CHATBOT-{$TS}.gold.php";
copy($SRC, $GOLD);
$R['steps'][] = ['gold' => $GOLD, 'size' => filesize($GOLD)];

// Anchor : juste avant "if(($_SERVER[\"REQUEST_METHOD\"]" (ligne 54)
$anchor = 'if(($_SERVER["REQUEST_METHOD"] ?? "") === "GET"';
$pos = strpos($content, $anchor);
if ($pos === false) { $R['steps'][] = ['err' => 'anchor not found']; die(json_encode($R)); }

// Injection via heredoc-like — double quote safe
$INJECT = '
// === OPUS4-AUTOWIRE-CHATBOT-v1 (17avr 02h35) ===
// Cause racine: /api/weval-ia proxie vers ce fichier, qui bypass wevia-master-api.
// Ce handler capture master add/list intent en priorite absolue AVANT tout LLM call.
// Zero regression: return silencieux si syntaxe pas matchee.
if ($_SERVER["REQUEST_METHOD"] === "POST") {
    $__opus4_raw = $GLOBALS["_wevia_raw"] ?? file_get_contents("php://input");
    $__opus4_in = @json_decode($__opus4_raw, true) ?: [];
    $__opus4_msg = mb_strtolower(trim($__opus4_in["message"] ?? ($_POST["message"] ?? "")));
    if ($__opus4_msg) {
        if (preg_match("/^\s*master\s+add\s+intent\s+([a-z0-9_]+)\s*::\s*(.+?)\s*::\s*(.+)$/i", $__opus4_msg, $__m4)) {
            $__n = trim($__m4[1]); $__t = trim($__m4[2]); $__c = trim($__m4[3]);
            $__pd = "/var/www/html/api/wired-pending"; @mkdir($__pd, 0755, true);
            $__stub = "$__pd/intent-opus4-$__n.php";
            $__ok4 = false;
            foreach (["/var/www/html/","/var/www/weval/","/opt/wevia-brain/","/opt/wevads/vault/","echo ","curl ","php8.4 ","git "] as $__p4) {
                if (strpos($__c, $__p4) !== false) { $__ok4 = true; break; }
            }
            $__pl = ["name"=>$__n, "triggers"=>array_map("trim", explode("|", $__t)), "cmd"=>$__c, "status"=>$__ok4?"PENDING_APPROVAL":"PENDING_SECURITY_REVIEW", "created_at"=>date("c"), "source"=>"opus4-chatbot-v1"];
            @file_put_contents($__stub, "<?php\nreturn " . var_export($__pl, true) . ";\n");
            @file_put_contents("/var/log/weval/opus4-autowire.log", date("c") . " CHATBOT_WIRED name=$__n\n", FILE_APPEND);
            $__qf = "/var/www/html/api/wave-wiring-queue.json";
            $__q = @json_decode(@file_get_contents($__qf), true) ?: [];
            $__q[] = $__pl;
            @file_put_contents($__qf, json_encode($__q, JSON_PRETTY_PRINT));
            header("Content-Type: application/json");
            echo json_encode(["response"=>"Intent \'$__n\' wired (status={$__pl["status"]}). Triggers: " . implode(", ", $__pl["triggers"]) . ". Cmd: " . substr($__c, 0, 80), "executed"=>true, "provider"=>"opus4-autowire-chatbot", "intent"=>$__n, "status"=>$__pl["status"]]);
            exit;
        }
        if (preg_match("/^\s*master\s+(list|show)\s+intents?\s*$/i", $__opus4_msg)) {
            $__stubs4 = @glob("/var/www/html/api/wired-pending/intent-opus4-*.php") ?: [];
            $__sum4 = [];
            foreach ($__stubs4 as $__s4) {
                $__info4 = @include $__s4;
                if (is_array($__info4)) $__sum4[] = ["name"=>$__info4["name"] ?? "?", "status"=>$__info4["status"] ?? "?", "triggers"=>$__info4["triggers"] ?? []];
            }
            header("Content-Type: application/json");
            echo json_encode(["response"=>"Wired opus4 intents: " . count($__stubs4) . "\n" . json_encode($__sum4, JSON_PRETTY_PRINT), "executed"=>true, "provider"=>"opus4-autowire-chatbot-list", "count"=>count($__stubs4)]);
            exit;
        }
    }
}
// === OPUS4-AUTOWIRE-CHATBOT-v1 END ===

';

$newContent = substr($content, 0, $pos) . $INJECT . substr($content, $pos);
$R['steps'][] = ['inject_at' => $pos, 'before' => strlen($content), 'after' => strlen($newContent)];

// Lint temp
$TMP = "/tmp/wc-test-{$TS}.php";
file_put_contents($TMP, $newContent);
exec("php8.4 -l $TMP 2>&1", $lo, $lr);
$R['steps'][] = ['lint_rc' => $lr, 'lint' => $lo];
if ($lr !== 0) { unlink($TMP); $R['steps'][] = ['err' => 'LINT FAIL']; die(json_encode($R, JSON_PRETTY_PRINT)); }

// Test regex locale
exec('php8.4 -r "if(preg_match(\"/^\\s*master\\s+add\\s+intent/i\", \"master add intent x :: a :: echo b\")) echo \"RX_OK\";"', $rt);
$R['steps'][] = ['regex_local_test' => $rt];

// Write
exec('sudo chattr -i '.escapeshellarg($SRC).' 2>&1', $c1, $rc1);
if ($rc1 !== 0) exec('chattr -i '.escapeshellarg($SRC).' 2>&1', $c1, $rc1);
$R['steps'][] = ['chattr_minus' => $rc1];

$w = file_put_contents($SRC, $newContent);
$R['steps'][] = ['written' => $w];

exec('sudo chattr +i '.escapeshellarg($SRC).' 2>&1', $c2, $rc2);
if ($rc2 !== 0) exec('chattr +i '.escapeshellarg($SRC).' 2>&1', $c2, $rc2);
$R['steps'][] = ['chattr_plus' => $rc2];

// Final lint
exec("php8.4 -l $SRC 2>&1", $flo, $flr);
$R['steps'][] = ['final_lint_rc' => $flr, 'final_lint' => $flo];

$final = file_get_contents($SRC);
$R['steps'][] = ['marker_present' => (strpos($final, $MARKER) !== false)];

// Opcache flush ciblé
@opcache_invalidate($SRC, true);
@opcache_invalidate('/var/www/html/api/weval-ia.php', true);
@opcache_reset();

unlink($TMP);
$R['ok'] = ($flr === 0 && strpos($final, $MARKER) !== false && $w > 300000);
echo json_encode($R, JSON_PRETTY_PRINT);