From 10aa5e767a35d39d6612f5e4addf4e04f3241a42 Mon Sep 17 00:00:00 2001
From: Florian Dold <florian@dold.me>
Date: Thu, 13 Jun 2024 18:19:20 +0200
Subject: wallet-core: introduce coin history store, spend coins
 transactionally

---
 packages/taler-wallet-core/src/db.ts | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

(limited to 'packages/taler-wallet-core/src/db.ts')

diff --git a/packages/taler-wallet-core/src/db.ts b/packages/taler-wallet-core/src/db.ts
index 5c381eea7..0ce838fd2 100644
--- a/packages/taler-wallet-core/src/db.ts
+++ b/packages/taler-wallet-core/src/db.ts
@@ -912,6 +912,27 @@ export interface CoinRecord {
   ageCommitmentProof: AgeCommitmentProof | undefined;
 }
 
+export type HistoryItem =
+  | {
+      type: "withdraw";
+      transactionId: TransactionIdStr;
+    }
+  | { type: "spend"; transactionId: TransactionIdStr; amount: AmountString }
+  | { type: "refresh"; transactionId: TransactionIdStr; amount: AmountString }
+  | { type: "recoup"; transactionId: TransactionIdStr; amount: AmountString }
+  | { type: "refund"; transactionId: TransactionIdStr; amount: AmountString };
+
+/**
+ * History event for a coin from the wallet's perspective.
+ */
+export interface CoinHistoryRecord {
+  coinPub: string;
+
+  timestamp: DbPreciseTimestamp;
+
+  item: HistoryItem;
+}
+
 /**
  * Coin allocation, i.e. what a coin has been used for.
  */
@@ -2423,6 +2444,11 @@ export const WalletStoresV1 = {
       }),
     },
   ),
+  coinHistory: describeStoreV2({
+    storeName: "coinHistory",
+    recordCodec: passthroughCodec<CoinHistoryRecord>(),
+    keyPath: ["coinPub", "timestamp"],
+  }),
   coins: describeStore(
     "coins",
     describeContents<CoinRecord>({
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