102 lines
4 KiB
JavaScript
102 lines
4 KiB
JavaScript
import throttle from 'lodash-es/throttle'
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import { mark, stop } from '../_utils/marks'
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import { store } from '../_store/store'
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import uniqBy from 'lodash-es/uniqBy'
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import uniq from 'lodash-es/uniq'
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import isEqual from 'lodash-es/isEqual'
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import { database } from '../_database/database'
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import { runMediumPriorityTask } from '../_utils/runMediumPriorityTask'
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import { concat } from '../_utils/arrays'
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const STREAMING_THROTTLE_DELAY = 3000
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function getExistingItemIdsSet (instanceName, timelineName) {
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let timelineItemIds = store.getForTimeline(instanceName, timelineName, 'timelineItemIds') || []
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return new Set(timelineItemIds)
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}
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function removeDuplicates (instanceName, timelineName, updates) {
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// remove duplicates, including duplicates due to reblogs
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let existingItemIds = getExistingItemIdsSet(instanceName, timelineName)
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return updates.filter(update => !existingItemIds.has(update.id))
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}
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async function insertUpdatesIntoTimeline (instanceName, timelineName, updates) {
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updates = removeDuplicates(instanceName, timelineName, updates)
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if (!updates.length) {
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return
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}
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await database.insertTimelineItems(instanceName, timelineName, updates)
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let itemIdsToAdd = store.getForTimeline(instanceName, timelineName, 'itemIdsToAdd') || []
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let newItemIdsToAdd = uniq(concat(itemIdsToAdd, updates.map(_ => _.id)))
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if (!isEqual(itemIdsToAdd, newItemIdsToAdd)) {
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console.log('adding ', (newItemIdsToAdd.length - itemIdsToAdd.length),
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'items to itemIdsToAdd for timeline', timelineName)
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store.setForTimeline(instanceName, timelineName, { itemIdsToAdd: newItemIdsToAdd })
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}
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}
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async function insertUpdatesIntoThreads (instanceName, updates) {
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if (!updates.length) {
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return
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}
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let threads = store.getThreads(instanceName)
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for (let timelineName of Object.keys(threads)) {
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let thread = threads[timelineName]
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let itemIdsToAdd = store.getForTimeline(instanceName, timelineName, 'itemIdsToAdd') || []
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let updatesForThisThread = updates.filter(status => (
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thread.includes(status.in_reply_to_id) &&
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!thread.includes(status.id) &&
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!itemIdsToAdd.includes(status.id)
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))
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if (!updatesForThisThread.length) {
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continue
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}
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let newItemIdsToAdd = uniq(concat(itemIdsToAdd, updatesForThisThread.map(_ => _.id)))
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if (!isEqual(itemIdsToAdd, newItemIdsToAdd)) {
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console.log('adding ', (newItemIdsToAdd.length - itemIdsToAdd.length),
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'items to itemIdsToAdd for thread', timelineName)
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store.setForTimeline(instanceName, timelineName, { itemIdsToAdd: newItemIdsToAdd })
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}
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}
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}
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async function processFreshUpdates (instanceName, timelineName) {
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mark('processFreshUpdates')
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let freshUpdates = store.getForTimeline(instanceName, timelineName, 'freshUpdates')
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if (freshUpdates && freshUpdates.length) {
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let updates = freshUpdates.slice()
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store.setForTimeline(instanceName, timelineName, { freshUpdates: [] })
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await Promise.all([
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insertUpdatesIntoTimeline(instanceName, timelineName, updates),
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insertUpdatesIntoThreads(instanceName, updates.filter(status => status.in_reply_to_id))
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])
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}
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stop('processFreshUpdates')
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}
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const lazilyProcessFreshUpdates = throttle((instanceName, timelineName) => {
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runMediumPriorityTask(() => {
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/* no await */ processFreshUpdates(instanceName, timelineName)
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})
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}, STREAMING_THROTTLE_DELAY)
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export function addStatusOrNotification (instanceName, timelineName, newStatusOrNotification) {
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addStatusesOrNotifications(instanceName, timelineName, [newStatusOrNotification])
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}
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export function addStatusesOrNotifications (instanceName, timelineName, newStatusesOrNotifications) {
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console.log('addStatusesOrNotifications', Date.now())
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let freshUpdates = store.getForTimeline(instanceName, timelineName, 'freshUpdates') || []
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freshUpdates = concat(freshUpdates, newStatusesOrNotifications)
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freshUpdates = uniqBy(freshUpdates, _ => _.id)
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store.setForTimeline(instanceName, timelineName, { freshUpdates: freshUpdates })
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lazilyProcessFreshUpdates(instanceName, timelineName)
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}
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