asd

calc.php

@@ -0,0 +1,43 @@
+<?php
+declare(strict_types=1);
+// Calculation endpoint for the public calculator: GET ?n=<nominal>&t=<tenor>&c=perorangan|badan
+// Visitors receive the customer-facing result only; a logged-in admin also gets
+// the internal breakdown shown in "Rincian perhitungan".
+require __DIR__ . '/includes/auth.php';
+require __DIR__ . '/includes/engine.php';
+
+try {
+    $admin = viewing_admin();
+} catch (Throwable $ex) {
+    $admin = null;
+}
+send_security_headers($admin !== null);
+header('Content-Type: application/json; charset=utf-8');
+header('X-Robots-Tag: noindex');
+
+function calc_reply(int $status, array $body): void
+{
+    http_response_code($status);
+    echo json_encode($body, JSON_UNESCAPED_UNICODE | JSON_PRESERVE_ZERO_FRACTION);
+    exit;
+}
+
+$nominal = parse_idr($_GET['n'] ?? '');
+$tenor = (int)input_str($_GET['t'] ?? '');
+$cust = input_str($_GET['c'] ?? '') === 'badan' ? 'badan' : 'perorangan';
+
+try {
+    $params = load_params();
+} catch (Throwable $ex) {
+    error_log('[serubi] calc: ' . $ex->getMessage());
+    calc_reply(503, ['error' => 'Parameter tidak dapat dimuat.']);
+}
+if ($nominal === null || $nominal <= 0 || $nominal > 1e15) {
+    calc_reply(400, ['error' => 'Nominal tidak valid.']);
+}
+if (!in_array($tenor, $params['tenors'], true)) {
+    calc_reply(400, ['error' => 'Jangka waktu tidak valid.']);
+}
+
+$result = engine_calculate($params, $nominal, $tenor, $cust);
+calc_reply(200, $admin ? $result : engine_public_result($result, $params));