1 files changed, 30 insertions, 0 deletions
diff --git a/packages/taler-wallet-core/src/operations/transactions.ts b/packages/taler-wallet-core/src/operations/transactions.ts
index 1c2ce34bb..764115cef 100644
--- a/packages/taler-wallet-core/src/operations/transactions.ts
+++ b/packages/taler-wallet-core/src/operations/transactions.ts
@@ -64,6 +64,7 @@ import {
 } from "../db.js";
 import { InternalWalletState } from "../internal-wallet-state.js";
 import { PendingTaskType } from "../pending-types.js";
+import { assertUnreachable } from "../util/assertUnreachable.js";
 import { checkDbInvariant } from "../util/invariants.js";
 import { constructTaskIdentifier, TaskIdentifiers } from "../util/retries.js";
 import {
@@ -1376,6 +1377,35 @@ export type ParsedTransactionIdentifier =
   | { tag: TransactionType.Tip; walletTipId: string }
   | { tag: TransactionType.Withdrawal; withdrawalGroupId: string };
 
+export function constructTransactionIdentifier(
+  pTxId: ParsedTransactionIdentifier,
+): string {
+  switch (pTxId.tag) {
+    case TransactionType.Deposit:
+      return `txn:${pTxId.tag}:${pTxId.depositGroupId}`;
+    case TransactionType.Payment:
+      return `txn:${pTxId.tag}:${pTxId.proposalId}`;
+    case TransactionType.PeerPullCredit:
+      return `txn:${pTxId.tag}:${pTxId.pursePub}`;
+    case TransactionType.PeerPullDebit:
+      return `txn:${pTxId.tag}:${pTxId.peerPullPaymentIncomingId}`;
+    case TransactionType.PeerPushCredit:
+      return `txn:${pTxId.tag}:${pTxId.peerPushPaymentIncomingId}`;
+    case TransactionType.PeerPushDebit:
+      return `txn:${pTxId.tag}:${pTxId.pursePub}`;
+    case TransactionType.Refresh:
+      return `txn:${pTxId.tag}:${pTxId.refreshGroupId}`;
+    case TransactionType.Refund:
+      return `txn:${pTxId.tag}:${pTxId.proposalId}:${pTxId.executionTime}`;
+    case TransactionType.Tip:
+      return `txn:${pTxId.tag}:${pTxId.walletTipId}`;
+    case TransactionType.Withdrawal:
+      return `txn:${pTxId.tag}:${pTxId.withdrawalGroupId}`;
+    default:
+      assertUnreachable(pTxId);
+  }
+}
+
 /**
  * Parse a transaction identifier string into a typed, structured representation.
  */