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Feed updates (Closes #344) (#356)

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* Rework feed polling to correctly detect when new content is available (close #344)

* Tweak how the tuner works for consistency

* Improve the feed-update behavior after posting

* Load latest notifications when opening the tab
This commit is contained in:
Paul Frazee 2023-03-22 15:46:49 -05:00 • committed by GitHub
parent 449f9243f3
commit f6f1fe2558
5 changed files with 49 additions and 72 deletions
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25
src/lib/api/feed-manip.ts
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@ -10,10 +10,12 @@ export type FeedTunerFn = (
) => void
export class FeedViewPostsSlice {
isFlattenedReply = false
constructor(public items: FeedViewPost[] = []) {}
get uri() {
if (this.isReply) {
if (this.isFlattenedReply) {
return this.items[1].post.uri
}
return this.items[0].post.uri
@ -39,12 +41,8 @@ export class FeedViewPostsSlice {
return this.isThread && !this.items[0].reply
}
get isReply() {
return this.items.length > 1 && !this.isThread
}
get rootItem() {
if (this.isReply) {
if (this.isFlattenedReply) {
return this.items[1]
}
return this.items[0]
@ -70,6 +68,7 @@ export class FeedViewPostsSlice {
flattenReplyParent() {
if (this.items[0].reply?.parent) {
this.isFlattenedReply = true
this.items.splice(0, 0, {post: this.items[0].reply?.parent})
}
}
@ -105,6 +104,11 @@ export class FeedTuner {
slices.unshift(new FeedViewPostsSlice([item]))
}
// run the custom tuners
for (const tunerFn of tunerFns) {
tunerFn(this, slices)
}
// remove any items already "seen"
const soonToBeSeenUris: Set<string> = new Set()
for (let i = slices.length - 1; i >= 0; i--) {
@ -135,11 +139,6 @@ export class FeedTuner {
// sort by slice roots' timestamps
slices.sort((a, b) => b.ts.localeCompare(a.ts))
// run the custom tuners
for (const tunerFn of tunerFns) {
tunerFn(this, slices)
}
for (const slice of slices) {
for (const item of slice.items) {
this.seenUris.add(item.post.uri)
@ -170,12 +169,12 @@ export class FeedTuner {
static likedRepliesOnly(tuner: FeedTuner, slices: FeedViewPostsSlice[]) {
// remove any replies without at least 2 likes
for (let i = slices.length - 1; i >= 0; i--) {
if (slices[i].isFullThread) {
if (slices[i].isFullThread || !slices[i].rootItem.reply) {
continue
}
const item = slices[i].rootItem
const isRepost = Boolean(item.reason)
if (item.reply && !isRepost && item.post.upvoteCount < 2) {
if (!isRepost && item.post.upvoteCount < 2) {
slices.splice(i, 1)
}
}