pinafore/routes/_store/timelineObservers.js
2018-02-15 22:21:42 -08:00

48 lines
1.5 KiB
JavaScript

import { updateInstanceInfo } from '../_actions/instances'
import { createStream } from '../_actions/streaming'
export function timelineObservers (store) {
// stream to watch for local/federated/etc. updates. home and notification
// updates are handled in timelineObservers.js
let currentTimelineStream
store.observe('currentTimeline', async (currentTimeline) => {
if (!process.browser) {
return
}
if (currentTimelineStream) {
currentTimelineStream.close()
currentTimelineStream = null
if (process.env.NODE_ENV !== 'production') {
window.currentTimelineStream = null
}
}
if (!currentTimeline) {
return
}
if (currentTimeline !== 'local' &&
currentTimeline !== 'federated' &&
!currentTimeline.startsWith('list/') &&
!currentTimeline.startsWith('tag/')) {
return
}
let currentInstance = store.get('currentInstance')
await updateInstanceInfo(currentInstance)
let instanceInfo = store.get('currentInstanceInfo')
if (!(instanceInfo &&
store.get('currentInstance') === currentInstance &&
store.get('currentTimeline') === currentTimeline)) {
return
}
let accessToken = store.get('accessToken')
currentTimelineStream = createStream(instanceInfo.urls.streaming_api,
currentInstance, accessToken, currentTimeline)
if (process.env.NODE_ENV !== 'production') {
window.currentTimelineStream = currentTimelineStream
}
})
}