66 lines
1.9 KiB
TypeScript
66 lines
1.9 KiB
TypeScript
import { Stores } from "./types/dbTypes";
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import { openDatabase, Database, Store, Index } from "./util/query";
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/**
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* Name of the Taler database. The name includes the
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* major version of the DB schema. The version should be incremented
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* with each major change. When incrementing the major version,
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* the wallet should import data from the previous version.
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*/
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const TALER_DB_NAME = "taler-walletdb-v4";
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/**
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* Current database minor version, should be incremented
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* each time we do minor schema changes on the database.
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* A change is considered minor when fields are added in a
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* backwards-compatible way or object stores and indices
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* are added.
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*/
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export const WALLET_DB_VERSION = 1;
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/**
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* Return a promise that resolves
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* to the taler wallet db.
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*/
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export function openTalerDatabase(
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idbFactory: IDBFactory,
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onVersionChange: () => void,
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): Promise<IDBDatabase> {
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const onUpgradeNeeded = (
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db: IDBDatabase,
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oldVersion: number,
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newVersion: number,
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): void => {
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switch (oldVersion) {
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case 0: // DB does not exist yet
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for (const n in Stores) {
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if ((Stores as any)[n] instanceof Store) {
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const si: Store<any> = (Stores as any)[n];
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const s = db.createObjectStore(si.name, si.storeParams);
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for (const indexName in si as any) {
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if ((si as any)[indexName] instanceof Index) {
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const ii: Index<any, any> = (si as any)[indexName];
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s.createIndex(ii.indexName, ii.keyPath, ii.options);
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}
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}
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}
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}
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break;
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default:
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throw Error("unsupported existig DB version");
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}
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};
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return openDatabase(
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idbFactory,
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TALER_DB_NAME,
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WALLET_DB_VERSION,
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onVersionChange,
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onUpgradeNeeded,
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);
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}
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export function deleteTalerDatabase(idbFactory: IDBFactory): void {
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Database.deleteDatabase(idbFactory, TALER_DB_NAME);
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}
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