pinafore/routes/_actions/addStatusOrNotification.js
2018-03-18 09:31:36 -07:00

85 lines
3.2 KiB
JavaScript

import throttle from 'lodash/throttle'
import { database } from '../_database/database'
import { mark, stop } from '../_utils/marks'
import { store } from '../_store/store'
import { scheduleIdleTask } from '../_utils/scheduleIdleTask'
import uniqBy from 'lodash/uniqBy'
import uniq from 'lodash/uniq'
function getExistingItemIdsSet (instanceName, timelineName) {
let timelineItemIds = store.getForTimeline(instanceName, timelineName, 'timelineItemIds') || []
return new Set(timelineItemIds)
}
function removeDuplicates (instanceName, timelineName, updates) {
// remove duplicates, including duplicates due to reblogs
let existingItemIds = getExistingItemIdsSet(instanceName, timelineName)
return updates.filter(update => !existingItemIds.has(update.id))
}
async function insertUpdatesIntoTimeline (instanceName, timelineName, updates) {
updates = removeDuplicates(instanceName, timelineName, updates)
if (!updates.length) {
return
}
await database.insertTimelineItems(instanceName, timelineName, updates)
let itemIdsToAdd = store.getForTimeline(instanceName, timelineName, 'itemIdsToAdd') || []
itemIdsToAdd = uniq(itemIdsToAdd.concat(updates.map(_ => _.id)))
console.log('adding ', itemIdsToAdd.length, 'items to itemIdsToAdd')
store.setForTimeline(instanceName, timelineName, {itemIdsToAdd: itemIdsToAdd})
}
async function insertUpdatesIntoThreads (instanceName, updates) {
if (!updates.length) {
return
}
let threads = store.getThreads(instanceName)
for (let timelineName of Object.keys(threads)) {
let thread = threads[timelineName]
let updatesForThisThread = updates.filter(status => {
return thread.includes(status.in_reply_to_id) && !thread.includes(status.id)
})
let itemIdsToAdd = store.getForTimeline(instanceName, timelineName, 'itemIdsToAdd') || []
for (let update of updatesForThisThread) {
if (!itemIdsToAdd.includes(update.id)) {
itemIdsToAdd.push(update.id)
}
}
console.log('adding ', itemIdsToAdd.length, 'items to itemIdsToAdd for thread', timelineName)
store.setForTimeline(instanceName, timelineName, {itemIdsToAdd: itemIdsToAdd})
}
}
async function processFreshUpdates (instanceName, timelineName) {
mark('processFreshUpdates')
let freshUpdates = store.getForTimeline(instanceName, timelineName, 'freshUpdates')
if (freshUpdates && freshUpdates.length) {
let updates = freshUpdates.slice()
store.setForTimeline(instanceName, timelineName, {freshUpdates: []})
await insertUpdatesIntoTimeline(instanceName, timelineName, updates)
await insertUpdatesIntoThreads(instanceName, updates.filter(status => status.in_reply_to_id))
}
stop('processFreshUpdates')
}
const lazilyProcessFreshUpdates = throttle((instanceName, timelineName) => {
scheduleIdleTask(() => {
/* no await */ processFreshUpdates(instanceName, timelineName)
})
}, 5000)
export function addStatusOrNotification (instanceName, timelineName, newStatusOrNotification) {
let freshUpdates = store.getForTimeline(instanceName, timelineName, 'freshUpdates') || []
freshUpdates.push(newStatusOrNotification)
freshUpdates = uniqBy(freshUpdates, _ => _.id)
store.setForTimeline(instanceName, timelineName, {freshUpdates: freshUpdates})
lazilyProcessFreshUpdates(instanceName, timelineName)
}