appleSubscription static method

VerificationResult appleSubscription(StatusResponse response, String originalTransactionId)

Parses getAllSubscriptionStatuses.

Looks at every subscription group, preferring the entries whose originalTransactionId matches originalTransactionId; if none match, considers all of the customer's subscriptions. Among the candidates, the best status wins (active > grace period > billing retry > expired > revoked), then the latest expiration.

Implementation

static VerificationResult appleSubscription(
  StatusResponse response,
  String originalTransactionId,
) {
  final isSandbox = _isAppleSandbox(response.environment);
  final all = [for (final group in response.data) ...group.lastTransactions];
  if (all.isEmpty) {
    return VerificationResult.notFound(
      StorePlatform.apple,
      isSandbox: isSandbox,
    );
  }

  final matching = all
      .where((item) => item.originalTransactionId == originalTransactionId)
      .toList();
  final candidates = matching.isNotEmpty ? matching : all;

  final decoded = [
    for (final item in candidates)
      (item: item, tx: item.transactionInfo, renewal: _renewalOf(item)),
  ];
  decoded.sort((a, b) {
    final byRank = (_appleStatusRank[b.item.status] ?? 0).compareTo(
      _appleStatusRank[a.item.status] ?? 0,
    );
    if (byRank != 0) return byRank;
    return (b.tx.expiresDate ?? 0).compareTo(a.tx.expiresDate ?? 0);
  });

  final best = decoded.first;
  final willAutoRenew = best.renewal == null
      ? null
      : best.renewal!.autoRenewStatus == 1;

  final VerificationState state;
  switch (best.item.status) {
    case _appleActive:
      state = willAutoRenew == false
          ? VerificationState.canceled
          : VerificationState.active;
    case _appleGracePeriod:
      state = VerificationState.gracePeriod;
    case _appleBillingRetry:
      state = VerificationState.billingRetry;
    case _appleExpired:
      state = VerificationState.expired;
    case _appleRevoked:
      state = VerificationState.revoked;
    default:
      state = VerificationState.unknown;
  }

  return VerificationResult(
    isValid:
        best.item.status == _appleActive ||
        best.item.status == _appleGracePeriod,
    state: state,
    platform: StorePlatform.apple,
    productId: best.tx.productId,
    expiresAt: _fromMillis(best.tx.expiresDate),
    willAutoRenew: willAutoRenew,
    isSandbox: isSandbox,
    raw: {
      'status': best.item.status,
      'transaction': best.tx.toJson(),
      if (best.renewal != null) 'renewalInfo': best.renewal!.toJson(),
    },
  );
}