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Pinafore-Web-Client-Frontend/routes/_database/cleanup.js

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import { dbPromise, getDatabase } from './databaseLifecycle'
import { scheduleIdleTask } from '../_utils/scheduleIdleTask'
import {
ACCOUNTS_STORE,
NOTIFICATION_TIMELINES_STORE,
NOTIFICATIONS_STORE,
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PINNED_STATUSES_STORE,
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RELATIONSHIPS_STORE,
STATUS_TIMELINES_STORE,
STATUSES_STORE,
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THREADS_STORE,
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TIMESTAMP
} from './constants'
import debounce from 'lodash-es/debounce'
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import { store } from '../_store/store'
import { mark, stop } from '../_utils/marks'
import { deleteAll } from './utils'
import { createPinnedStatusKeyRange, createThreadKeyRange } from './keys'
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const BATCH_SIZE = 20
const TIME_AGO = 14 * 24 * 60 * 60 * 1000 // two weeks ago
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const DELAY = 5 * 60 * 1000 // five minutes
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function batchedGetAll (callGetAll, callback) {
function nextBatch () {
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callGetAll().onsuccess = function (e) {
let results = e.target.result
callback(results)
if (results.length) {
nextBatch()
}
}
}
nextBatch()
}
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function cleanupStatuses (statusesStore, statusTimelinesStore, threadsStore, cutoff) {
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batchedGetAll(
() => statusesStore.index(TIMESTAMP).getAllKeys(IDBKeyRange.upperBound(cutoff), BATCH_SIZE),
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results => {
results.forEach(statusId => {
statusesStore.delete(statusId)
deleteAll(
statusTimelinesStore,
statusTimelinesStore.index('statusId'),
IDBKeyRange.only(statusId)
)
deleteAll(
threadsStore,
threadsStore,
createThreadKeyRange(statusId)
)
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})
}
)
}
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function cleanupNotifications (notificationsStore, notificationTimelinesStore, cutoff) {
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batchedGetAll(
() => notificationsStore.index(TIMESTAMP).getAllKeys(IDBKeyRange.upperBound(cutoff), BATCH_SIZE),
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results => {
results.forEach(notificationId => {
notificationsStore.delete(notificationId)
deleteAll(
notificationTimelinesStore,
notificationTimelinesStore.index('notificationId'),
IDBKeyRange.only(notificationId)
)
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})
}
)
}
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function cleanupAccounts (accountsStore, pinnedStatusesStore, cutoff) {
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batchedGetAll(
() => accountsStore.index(TIMESTAMP).getAllKeys(IDBKeyRange.upperBound(cutoff), BATCH_SIZE),
results => {
results.forEach(accountId => {
accountsStore.delete(accountId)
deleteAll(
pinnedStatusesStore,
pinnedStatusesStore,
createPinnedStatusKeyRange(accountId)
)
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})
}
)
}
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function cleanupRelationships (relationshipsStore, cutoff) {
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batchedGetAll(
() => relationshipsStore.index(TIMESTAMP).getAllKeys(IDBKeyRange.upperBound(cutoff), BATCH_SIZE),
results => {
results.forEach(relationshipId => {
relationshipsStore.delete(relationshipId)
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})
}
)
}
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async function cleanup (instanceName) {
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console.log('cleanup', instanceName)
mark(`cleanup:${instanceName}`)
let db = await getDatabase(instanceName)
let storeNames = [
STATUSES_STORE,
STATUS_TIMELINES_STORE,
NOTIFICATIONS_STORE,
NOTIFICATION_TIMELINES_STORE,
ACCOUNTS_STORE,
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RELATIONSHIPS_STORE,
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THREADS_STORE,
PINNED_STATUSES_STORE
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]
await dbPromise(db, storeNames, 'readwrite', (stores) => {
let [
statusesStore,
statusTimelinesStore,
notificationsStore,
notificationTimelinesStore,
accountsStore,
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relationshipsStore,
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threadsStore,
pinnedStatusesStore
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] = stores
let cutoff = Date.now() - TIME_AGO
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cleanupStatuses(statusesStore, statusTimelinesStore, threadsStore, cutoff)
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cleanupNotifications(notificationsStore, notificationTimelinesStore, cutoff)
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cleanupAccounts(accountsStore, pinnedStatusesStore, cutoff)
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cleanupRelationships(relationshipsStore, cutoff)
})
stop(`cleanup:${instanceName}`)
}
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function doCleanup (instanceName) {
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scheduleIdleTask(() => cleanup(instanceName))
}
function scheduledCleanup () {
console.log('scheduledCleanup')
let { loggedInInstancesInOrder } = store.get()
for (let instance of loggedInInstancesInOrder) {
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doCleanup(instance)
}
}
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export const scheduleCleanup = debounce(() => scheduleIdleTask(scheduledCleanup), DELAY)