78 lines
2.9 KiB
JavaScript
78 lines
2.9 KiB
JavaScript
import { store } from '../_store/store'
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import { database } from '../_database/database'
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import { getTimeline } from '../_api/timelines'
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import { toast } from '../_utils/toast'
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import { mark, stop } from '../_utils/marks'
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import { mergeArrays } from '../_utils/arrays'
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const FETCH_LIMIT = 20
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async function fetchTimelineItems(instanceName, accessToken, timelineName, lastTimelineItemId, online) {
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mark('fetchTimelineItems')
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let items
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if (!online) {
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items = await database.getTimeline(instanceName, timelineName, lastTimelineItemId, FETCH_LIMIT)
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} else {
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try {
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items = await getTimeline(instanceName, accessToken, timelineName, lastTimelineItemId, FETCH_LIMIT)
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/* no await */ database.insertTimelineItems(instanceName, timelineName, items)
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} catch (e) {
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console.error(e)
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toast.say('Internet request failed. Showing offline content.')
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items = await database.getTimeline(instanceName, timelineName, lastTimelineItemId, FETCH_LIMIT)
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}
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}
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stop('fetchTimelineItems')
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return items
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}
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async function addTimelineItems(instanceName, timelineName, newItems) {
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console.log('addTimelineItems, length:', newItems.length)
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mark('addTimelineItems')
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let newIds = newItems.map(item => item.id)
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let oldIds = store.getForTimeline(instanceName, timelineName, 'timelineItemIds') || []
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let merged = mergeArrays(oldIds, newIds)
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store.setForTimeline(instanceName, timelineName, { timelineItemIds: merged })
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stop('addTimelineItems')
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}
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async function fetchTimelineItemsAndPossiblyFallBack() {
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mark('fetchTimelineItemsAndPossiblyFallBack')
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let timelineName = store.get('currentTimeline')
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let instanceName = store.get('currentInstance')
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let accessToken = store.get('accessToken')
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let lastTimelineItemId = store.get('lastTimelineItemId')
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let online = store.get('online')
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let newItems = await fetchTimelineItems(instanceName, accessToken, timelineName, lastTimelineItemId, online)
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addTimelineItems(instanceName, timelineName, newItems)
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stop('fetchTimelineItemsAndPossiblyFallBack')
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}
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export function initializeTimeline() {
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mark('initializeTimeline')
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let instanceName = store.get('currentInstance')
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let timeline = store.get('currentTimeline')
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requestAnimationFrame(() => {
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requestAnimationFrame(() => {
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store.setForTimeline(instanceName, timeline, {initialized: true})
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})
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})
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stop('initializeTimeline')
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}
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export async function setupTimeline() {
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mark('setupTimeline')
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if (!store.get('timelineItemIds')) {
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await fetchTimelineItemsAndPossiblyFallBack()
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}
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stop('setupTimeline')
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}
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export async function fetchTimelineItemsOnScrollToBottom() {
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let timelineName = store.get('currentTimeline')
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let instanceName = store.get('currentInstance')
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store.setForTimeline(instanceName, timelineName, { runningUpdate: true })
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await fetchTimelineItemsAndPossiblyFallBack()
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store.setForTimeline(instanceName, timelineName, { runningUpdate: false })
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} |