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,
RELATIONSHIPS_STORE,
STATUS_TIMELINES_STORE,
STATUSES_STORE,
TIMESTAMP
} from './constants'
import debounce from 'lodash/debounce'
import { store } from '../_store/store'
import { mark, stop } from '../_utils/marks'
const BATCH_SIZE = 20
const TIME_AGO = 14 * 24 * 60 * 60 * 1000 // two weeks ago
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, cutoff) {
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batchedGetAll(
() => statusesStore.index(TIMESTAMP).getAll(IDBKeyRange.upperBound(cutoff), BATCH_SIZE),
results => {
results.forEach(result => {
statusesStore.delete(result.id)
let req = statusTimelinesStore.index('statusId').getAll(IDBKeyRange.only(result.id))
req.onsuccess = e => {
let results = e.target.result
results.forEach(result => {
statusTimelinesStore.delete(result.id)
})
}
})
}
)
}
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function cleanupNotifications (notificationsStore, notificationTimelinesStore, cutoff) {
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batchedGetAll(
() => notificationsStore.index(TIMESTAMP).getAll(IDBKeyRange.upperBound(cutoff), BATCH_SIZE),
results => {
results.forEach(result => {
notificationsStore.delete(result.id)
let req = notificationTimelinesStore.index('notificationId').getAll(IDBKeyRange.only(result.id))
req.onsuccess = e => {
let results = e.target.result
results.forEach(result => {
notificationTimelinesStore.delete(result.id)
})
}
})
}
)
}
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function cleanupAccounts (accountsStore, cutoff) {
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batchedGetAll(
() => accountsStore.index(TIMESTAMP).getAll(IDBKeyRange.upperBound(cutoff), BATCH_SIZE),
(results) => {
results.forEach(result => {
accountsStore.delete(result.id)
})
}
)
}
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function cleanupRelationships (relationshipsStore, cutoff) {
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batchedGetAll(
() => relationshipsStore.index(TIMESTAMP).getAll(IDBKeyRange.upperBound(cutoff), BATCH_SIZE),
(results) => {
results.forEach(result => {
relationshipsStore.delete(result.id)
})
}
)
}
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async function cleanup (instanceName) {
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console.log('cleanup', instanceName)
mark(`cleanup:${instanceName}`)
let db = await getDatabase(instanceName)
let storeNames = [
STATUSES_STORE,
STATUS_TIMELINES_STORE,
NOTIFICATIONS_STORE,
NOTIFICATION_TIMELINES_STORE,
ACCOUNTS_STORE,
RELATIONSHIPS_STORE
]
await dbPromise(db, storeNames, 'readwrite', (stores) => {
let [
statusesStore,
statusTimelinesStore,
notificationsStore,
notificationTimelinesStore,
accountsStore,
relationshipsStore
] = stores
let cutoff = Date.now() - TIME_AGO
cleanupStatuses(statusesStore, statusTimelinesStore, cutoff)
cleanupNotifications(notificationsStore, notificationTimelinesStore, cutoff)
cleanupAccounts(accountsStore, cutoff)
cleanupRelationships(relationshipsStore, cutoff)
})
stop(`cleanup:${instanceName}`)
}
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function doCleanup (instanceName) {
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scheduleIdleTask(() => cleanup(instanceName))
}
function scheduledCleanup () {
console.log('scheduledCleanup')
let instances = store.get('loggedInInstancesInOrder')
for (let instance of instances) {
doCleanup(instance)
}
}
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export const scheduleCleanup = debounce(() => scheduleIdleTask(scheduledCleanup), DELAY)