pinafore/routes/_actions/addStatusOrNotification.js
2018-02-16 19:38:21 -08:00

56 lines
2.4 KiB
JavaScript

import throttle from 'lodash/throttle'
import { getIdsThatTheseStatusesReblogged } from './statuses'
import { database } from '../_database/database'
import { mark, stop } from '../_utils/marks'
import { store } from '../_store/store'
import { scheduleIdleTask } from '../_utils/scheduleIdleTask'
async function getExistingItemIdsSet (instanceName, timelineName) {
let timelineItemIds = store.getForTimeline(instanceName, timelineName, 'timelineItemIds') || []
if (timelineName === 'notifications') {
return new Set(timelineItemIds)
}
let reblogIds = await getIdsThatTheseStatusesReblogged(instanceName, timelineItemIds)
return new Set([].concat(timelineItemIds).concat(reblogIds))
}
async function removeDuplicates (instanceName, timelineName, updates) {
// remove duplicates, including duplicates due to reblogs
let existingItemIds = await getExistingItemIdsSet(instanceName, timelineName)
return updates.filter(update => !existingItemIds.has(update.id))
}
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: []})
updates = await removeDuplicates(instanceName, timelineName, updates)
await database.insertTimelineItems(instanceName, timelineName, updates)
let itemIdsToAdd = store.getForTimeline(instanceName, timelineName, 'itemIdsToAdd') || []
if (updates && updates.length) {
itemIdsToAdd = itemIdsToAdd.concat(updates.map(_ => _.id))
console.log('adding ', itemIdsToAdd.length, 'items to itemIdsToAdd')
store.setForTimeline(instanceName, timelineName, {itemIdsToAdd: itemIdsToAdd})
}
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)
store.setForTimeline(instanceName, timelineName, {freshUpdates: freshUpdates})
lazilyProcessFreshUpdates(instanceName, timelineName)
}