1 files changed, 89 insertions, 0 deletions
diff --git a/extension/background/db.ts b/extension/background/db.ts
new file mode 100644
index 000000000..12d944a83
--- /dev/null
+++ b/extension/background/db.ts
@@ -0,0 +1,89 @@
+"use strict";
+/**
+ * Declarations and helpers for
+ * things that are stored in the wallet's
+ * database.
+ */
+
+
+
+namespace Db {
+  export interface Mint {
+    baseUrl: string;
+    keys: Keys
+  }
+
+  export interface CoinWithDenom {
+    coin: Coin;
+    denom: Denomination;
+  }
+
+  export interface Keys {
+    denoms: { [key: string]: Denomination };
+  }
+
+  export interface Denomination {
+    value: AmountJson;
+    denom_pub: string;
+    fee_withdraw: AmountJson;
+    fee_deposit: AmountJson;
+  }
+
+  export interface PreCoin {
+    coinPub: string;
+    coinPriv: string;
+    reservePub: string;
+    denomPub: string;
+    blindingKey: string;
+    withdrawSig: string;
+    coinEv: string;
+    mintBaseUrl: string;
+    coinValue: AmountJson;
+  }
+  
+  export interface Coin {
+    coinPub: string;
+    coinPriv: string;
+    denomPub: string;
+    denomSig: string;
+    currentAmount: AmountJson;
+  }
+
+
+}
+
+
+const DB_NAME = "taler";
+const DB_VERSION = 1;
+
+/**
+ * Return a promise that resolves
+ * to the taler wallet db.
+ */
+function openTalerDb(): Promise<IDBDatabase> {
+  return new Promise((resolve, reject) => {
+    let req = indexedDB.open(DB_NAME, DB_VERSION);
+    req.onerror = (e) => {
+      reject(e);
+    };
+    req.onsuccess = (e) => {
+      resolve(req.result);
+    };
+    req.onupgradeneeded = (e) => {
+      let db = req.result;
+      console.log ("DB: upgrade needed: oldVersion = " + e.oldVersion);
+      switch (e.oldVersion) {
+        case 0: // DB does not exist yet
+          let mints = db.createObjectStore("mints", { keyPath: "baseUrl" });
+          mints.createIndex("pubKey", "keys.master_public_key");
+          db.createObjectStore("reserves", { keyPath: "reserve_pub"});
+          db.createObjectStore("denoms", { keyPath: "denomPub" });
+          let coins = db.createObjectStore("coins", { keyPath: "coinPub" });
+          coins.createIndex("mintBaseUrl", "mintBaseUrl");
+          db.createObjectStore("transactions", { keyPath: "contractHash" });
+          db.createObjectStore("precoins", { keyPath: "coinPub", autoIncrement: true });
+          break;
+      }
+    };
+  });
+}