70 lines
1.9 KiB
TypeScript
70 lines
1.9 KiB
TypeScript
import Dexie from 'dexie'
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import type { AsPlainObject } from 'minisearch'
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import type { IndexedDocument } from './globals'
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export class OmnisearchCache extends Dexie {
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public static readonly dbVersion = 7
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public static readonly dbName = 'omnisearch/cache/' + app.appId
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private static instance: OmnisearchCache
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/**
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* Deletes Omnisearch databases that have an older version than the current one
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*/
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public static async clearOldDatabases(): Promise<void> {
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const toDelete = (await indexedDB.databases()).filter(
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db =>
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db.name === OmnisearchCache.dbName &&
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// version multiplied by 10 https://github.com/dexie/Dexie.js/issues/59
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db.version !== OmnisearchCache.dbVersion * 10
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)
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if (toDelete.length) {
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console.log('Omnisearch - Those IndexedDb databases will be deleted:')
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for (const db of toDelete) {
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if (db.name) {
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console.log(db.name + ' ' + db.version)
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indexedDB.deleteDatabase(db.name)
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}
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}
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}
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}
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//#region Table declarations
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documents!: Dexie.Table<
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{ path: string; mtime: number; document: IndexedDocument },
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string
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>
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searchHistory!: Dexie.Table<{ id?: number; query: string }, number>
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minisearch!: Dexie.Table<
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{ date: string; checksum: string; data: AsPlainObject },
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string
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>
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//#endregion Table declarations
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public static getInstance() {
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if (!OmnisearchCache.instance) {
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OmnisearchCache.instance = new OmnisearchCache()
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}
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return OmnisearchCache.instance
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}
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private constructor() {
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super(OmnisearchCache.dbName)
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// Database structure
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this.version(OmnisearchCache.dbVersion).stores({
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searchHistory: '++id',
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documents: 'path',
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minisearch: 'date',
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})
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}
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public async clearCache() {
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await this.minisearch.clear()
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await this.documents.clear()
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}
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}
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export const database = OmnisearchCache.getInstance()
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