import 'package:go_router/go_router.dart';

/// Parses FCM / notification payloads so the app opens the correct chat.
/// Expected keys: `contextId`, `roomId` (and optional `type`).
class PushRouting {
  const PushRouting();

  /// Build location for go_router, e.g. `/chat?roomId=...&contextId=...`
  String? locationFromPayload(Map<String, dynamic> data) {
    final roomId = data['roomId'] as String? ?? data['room_id'] as String?;
    final contextId = data['contextId'] as String? ?? data['context_id'] as String?;
    if (roomId == null || contextId == null) return null;
    return Uri(
      path: '/chat',
      queryParameters: {'roomId': roomId, 'contextId': contextId},
    ).toString();
  }

  void navigateFromPayload(GoRouter router, Map<String, dynamic> data) {
    final loc = locationFromPayload(data);
    if (loc != null) router.go(loc);
  }
}