87 lines
2.9 KiB
JavaScript
87 lines
2.9 KiB
JavaScript
import { updateInstanceInfo, updateVerifyCredentialsForInstance } from '../../_actions/instances'
|
||
import { updateLists } from '../../_actions/lists'
|
||
import { createStream } from '../../_actions/streaming'
|
||
import { updateCustomEmojiForInstance } from '../../_actions/emoji'
|
||
import { addStatusesOrNotifications } from '../../_actions/addStatusOrNotification'
|
||
import { getTimeline } from '../../_api/timelines'
|
||
|
||
export function instanceObservers (store) {
|
||
// stream to watch for home timeline updates and notifications
|
||
let currentInstanceStream
|
||
|
||
store.observe('currentInstance', async (currentInstance) => {
|
||
if (!process.browser) {
|
||
return
|
||
}
|
||
if (currentInstanceStream) {
|
||
currentInstanceStream.close()
|
||
currentInstanceStream = null
|
||
if (process.env.NODE_ENV !== 'production') {
|
||
window.currentInstanceStream = null
|
||
}
|
||
}
|
||
if (!currentInstance) {
|
||
return
|
||
}
|
||
updateVerifyCredentialsForInstance(currentInstance)
|
||
updateInstanceInfo(currentInstance)
|
||
updateCustomEmojiForInstance(currentInstance)
|
||
updateLists()
|
||
|
||
await updateInstanceInfo(currentInstance)
|
||
|
||
let currentInstanceIsUnchanged = () => {
|
||
return store.get('currentInstance') === currentInstance
|
||
}
|
||
|
||
if (!currentInstanceIsUnchanged()) {
|
||
return
|
||
}
|
||
|
||
let instanceInfo = store.get('currentInstanceInfo')
|
||
if (!instanceInfo) {
|
||
return
|
||
}
|
||
|
||
let homeTimelineItemIds = store.getForTimeline(currentInstance,
|
||
'home', 'timelineItemIds')
|
||
let firstHomeTimelineItemId = homeTimelineItemIds && homeTimelineItemIds[0]
|
||
let notificationItemIds = store.getForTimeline(currentInstance,
|
||
'notifications', 'timelineItemIds')
|
||
let firstNotificationTimelineItemId = notificationItemIds && notificationItemIds[0]
|
||
|
||
let onOpenStream = async () => {
|
||
if (!currentInstanceIsUnchanged()) {
|
||
return
|
||
}
|
||
|
||
// fill in the "streaming gap" – i.e. fetch the most recent 20 items so that there isn't
|
||
// a big gap in the timeline if you haven't looked at it in awhile
|
||
async function fillGap (timelineName, firstTimelineItemId) {
|
||
if (!firstTimelineItemId) {
|
||
return
|
||
}
|
||
let newTimelineItems = await getTimeline(currentInstance, accessToken,
|
||
timelineName, null, firstTimelineItemId)
|
||
if (newTimelineItems.length) {
|
||
addStatusesOrNotifications(currentInstance, timelineName, newTimelineItems)
|
||
}
|
||
}
|
||
|
||
await Promise.all([
|
||
fillGap('home', firstHomeTimelineItemId),
|
||
fillGap('notifications', firstNotificationTimelineItemId)
|
||
])
|
||
}
|
||
|
||
let accessToken = store.get('accessToken')
|
||
let streamingApi = instanceInfo.urls.streaming_api
|
||
currentInstanceStream = createStream(streamingApi,
|
||
currentInstance, accessToken, 'home', onOpenStream)
|
||
|
||
if (process.env.NODE_ENV !== 'production') {
|
||
window.currentInstanceStream = currentInstanceStream
|
||
}
|
||
})
|
||
}
|