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/*
This file is part of GNU Taler
(C) 2021 Taler Systems S.A.
GNU Taler is free software; you can redistribute it and/or modify it under the
terms of the GNU General Public License as published by the Free Software
Foundation; either version 3, or (at your option) any later version.
GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
*/
/**
* Imports.
*/
import { IDBDatabase, IDBFactory, IDBTransaction } from "@gnu-taler/idb-bridge";
import { Logger } from "@gnu-taler/taler-util";
import {
CURRENT_DB_CONFIG_KEY,
TALER_DB_NAME,
TALER_META_DB_NAME,
walletMetadataStore,
WalletStoresV1,
WALLET_DB_MINOR_VERSION,
} from "./db.js";
import {
DbAccess,
IndexDescriptor,
openDatabase,
StoreDescriptor,
StoreWithIndexes,
} from "./util/query.js";
const logger = new Logger("db-utils.ts");
function upgradeFromStoreMap(
storeMap: any,
db: IDBDatabase,
oldVersion: number,
newVersion: number,
upgradeTransaction: IDBTransaction,
): void {
if (oldVersion === 0) {
for (const n in storeMap) {
const swi: StoreWithIndexes<StoreDescriptor<unknown>, any> = storeMap[n];
const storeDesc: StoreDescriptor<unknown> = swi.store;
const s = db.createObjectStore(storeDesc.name, {
autoIncrement: storeDesc.autoIncrement,
keyPath: storeDesc.keyPath,
});
for (const indexName in swi.indexMap as any) {
const indexDesc: IndexDescriptor = swi.indexMap[indexName];
s.createIndex(indexDesc.name, indexDesc.keyPath, {
multiEntry: indexDesc.multiEntry,
});
}
}
return;
}
if (oldVersion === newVersion) {
return;
}
logger.info(`upgrading database from ${oldVersion} to ${newVersion}`);
throw Error("upgrade not supported");
}
function onTalerDbUpgradeNeeded(
db: IDBDatabase,
oldVersion: number,
newVersion: number,
upgradeTransaction: IDBTransaction,
) {
upgradeFromStoreMap(
WalletStoresV1,
db,
oldVersion,
newVersion,
upgradeTransaction,
);
}
function onMetaDbUpgradeNeeded(
db: IDBDatabase,
oldVersion: number,
newVersion: number,
upgradeTransaction: IDBTransaction,
) {
upgradeFromStoreMap(
walletMetadataStore,
db,
oldVersion,
newVersion,
upgradeTransaction,
);
}
/**
* Return a promise that resolves
* to the taler wallet db.
*/
export async function openTalerDatabase(
idbFactory: IDBFactory,
onVersionChange: () => void,
): Promise<DbAccess<typeof WalletStoresV1>> {
const metaDbHandle = await openDatabase(
idbFactory,
TALER_META_DB_NAME,
1,
() => {},
onMetaDbUpgradeNeeded,
);
const metaDb = new DbAccess(metaDbHandle, walletMetadataStore);
let currentMainVersion: string | undefined;
await metaDb
.mktx((x) => ({
metaConfig: x.metaConfig,
}))
.runReadWrite(async (tx) => {
const dbVersionRecord = await tx.metaConfig.get(CURRENT_DB_CONFIG_KEY);
if (!dbVersionRecord) {
currentMainVersion = TALER_DB_NAME;
await tx.metaConfig.put({
key: CURRENT_DB_CONFIG_KEY,
value: TALER_DB_NAME,
});
} else {
currentMainVersion = dbVersionRecord.value;
}
});
if (currentMainVersion !== TALER_DB_NAME) {
switch (currentMainVersion) {
case "taler-wallet-main-v2":
// We consider this a pre-release
// development version, no migration is done.
await metaDb
.mktx((x) => ({
metaConfig: x.metaConfig,
}))
.runReadWrite(async (tx) => {
await tx.metaConfig.put({
key: CURRENT_DB_CONFIG_KEY,
value: TALER_DB_NAME,
});
});
break;
default:
throw Error(
`migration from database ${currentMainVersion} not supported`,
);
}
}
const mainDbHandle = await openDatabase(
idbFactory,
TALER_DB_NAME,
WALLET_DB_MINOR_VERSION,
onVersionChange,
onTalerDbUpgradeNeeded,
);
return new DbAccess(mainDbHandle, WalletStoresV1);
}
export function deleteTalerDatabase(idbFactory: IDBFactory): void {
idbFactory.deleteDatabase(TALER_DB_NAME);
}
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