changes to translation system

handlers/clients.php

@@ -62,7 +62,45 @@ case 'GET':
     break;
 
 case 'POST':
-    $body    = read_json_body();
+    $body = read_json_body();
+
+    if (($body['action'] ?? '') === 'reset') {
+        $clientCode = trim((string)($body['clientCode'] ?? ''));
+        if ($clientCode === '') {
+            json_error('MISSING_FIELDS', 'clientCode is required', 400);
+        }
+
+        try {
+            [$pdo, $tmpDb, $lockFp] = qdb_open_write_or_fail();
+
+            [$clause, $params] = rbac_client_filter($tokenRec, 'cl', 'all');
+            $chk = $pdo->prepare(
+                "SELECT clientCode FROM client cl WHERE cl.clientCode = :cc AND ($clause)"
+            );
+            $chk->execute(array_merge([':cc' => $clientCode], $params));
+            if (!$chk->fetch()) {
+                qdb_discard($tmpDb, $lockFp);
+                json_error('NOT_FOUND', 'Client not found or not authorized', 404);
+            }
+
+            require_once __DIR__ . '/../lib/submissions.php';
+
+            $pdo->beginTransaction();
+            $cleared = qdb_delete_client_response_data($pdo, [$clientCode]);
+            $pdo->commit();
+
+            qdb_save($tmpDb, $lockFp);
+            json_success([
+                'clientCode' => $clientCode,
+                'reset'      => true,
+                'cleared'    => $cleared,
+            ]);
+        } catch (Throwable $e) {
+            qdb_handler_fail($e, 'clients', $pdo ?? null, $tmpDb ?? null, $lockFp ?? null);
+        }
+        break;
+    }
+
     $coachID = trim($body['coachID'] ?? '');
     $bulk    = !empty($body['bulk']);