pinafore/routes/_store/timelineObservers.js
2018-02-11 14:11:03 -08:00

38 lines
1.1 KiB
JavaScript

import { updateInstanceInfo } from '../_actions/instances'
import { createStream } from '../_actions/streaming'
export function timelineObservers (store) {
let currentTimelineStream
store.observe('currentTimeline', async (currentTimeline) => {
if (!process.browser) {
return
}
if (currentTimelineStream) {
currentTimelineStream.close()
currentTimelineStream = null
}
if (!currentTimeline) {
return
}
if (!(['home', 'local', 'federated'].includes(currentTimeline) ||
currentTimeline.startsWith('list/') ||
currentTimeline.startsWith('tag/'))) {
return
}
let currentInstance = store.get('currentInstance')
let accessToken = store.get('accessToken')
await updateInstanceInfo(currentInstance)
let instanceInfo = store.get('currentInstanceInfo')
if (!(instanceInfo &&
store.get('currentInstance') === currentInstance &&
store.get('currentTimeline') === currentTimeline)) {
return
}
currentTimelineStream = createStream(instanceInfo.urls.streaming_api,
currentInstance, accessToken, currentTimeline)
})
}