76 lines
2.3 KiB
JavaScript
76 lines
2.3 KiB
JavaScript
import {
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toReversePaddedBigInt
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} from './utils'
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import {
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getDatabase,
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dbPromise,
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deleteDatabase,
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} from './databaseLifecycle'
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import {
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META_STORE,
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TIMELINE_STORE,
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STATUSES_STORE
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} from './constants'
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export async function getTimeline(instanceName, timeline, maxId = null, limit = 20) {
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const db = await getDatabase(instanceName, timeline)
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return await dbPromise(db, [TIMELINE_STORE, STATUSES_STORE], 'readonly', (stores, callback) => {
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let [ timelineStore, statusesStore ] = stores
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let negBigInt = maxId && toReversePaddedBigInt(maxId)
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let start = negBigInt ? (timeline + '\u0000' + negBigInt) : (timeline + '\u0000')
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let end = timeline + '\u0000\uffff'
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let query = IDBKeyRange.bound(start, end, false, false)
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timelineStore.getAll(query, limit).onsuccess = e => {
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let timelineResults = e.target.result
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let res = new Array(timelineResults.length)
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timelineResults.forEach((timelineResult, i) => {
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statusesStore.get(timelineResult.statusId).onsuccess = e => {
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res[i] = e.target.result
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}
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})
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callback(res)
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}
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})
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}
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export async function insertStatuses(instanceName, timeline, statuses) {
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const db = await getDatabase(instanceName, timeline)
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await dbPromise(db, [TIMELINE_STORE, STATUSES_STORE], 'readwrite', (stores) => {
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let [ timelineStore, statusesStore ] = stores
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for (let status of statuses) {
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statusesStore.put(status)
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// reverse chronological order, prefixed by timeline
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let id = timeline + '\u0000' + toReversePaddedBigInt(status.id)
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timelineStore.put({
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id: id,
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statusId: status.id
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})
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}
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})
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}
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export async function getInstanceVerifyCredentials(instanceName) {
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const db = await getDatabase(instanceName)
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return await dbPromise(db, META_STORE, 'readonly', (store, callback) => {
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store.get('verifyCredentials').onsuccess = (e) => {
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callback(e.target.result && e.target.result.value)
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}
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})
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}
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export async function setInstanceVerifyCredentials(instanceName, verifyCredentials) {
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const db = await getDatabase(instanceName)
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return await dbPromise(db, META_STORE, 'readwrite', (store) => {
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store.put({
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key: 'verifyCredentials',
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value: verifyCredentials
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})
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})
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}
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export async function clearDatabaseForInstance(instanceName) {
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await deleteDatabase(instanceName)
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} |