[Threads V2] Preliminary integration of unspecced V2 APIs (#8443)

* WIP

* Sorting working

* Rough handling of hidden/muted

* Better muted/hidden sorting and handling

* Clarify some naming

* Fix parents

* Handle first reply under highlighted/composer

* WIP RaW

* WIP optimistic

* Optimistic WIP

* Little cleanup, inserting dupes

* Re-org

* Add in new optimistic insert logic

* Update types

* Sorta working linear view optimistic state

* Simple working version, no pref for OP

* Working optimistic reply insertions, preference for OP

* Ensure deletes are coming through

* WIP scroll handling

* WIP scroll tweaks

* Clean up scrolling

* Clean up onPostSuccess

* Add annotations

* Fix highlighted post calc

* WIP kill me

* Update APIs

* Nvm don't kill me

* Fix optimistic insert

* Handle read more cases in tree view

* Basically working read more

* Handle linear view

* Reorg

* More reorg

* Split up thread post components

* New reply tree layout

* Fix up traversal metadata

* Tighten some spacing

* Use indent ya idiot

* Some linear mode cleanup

* Fix lines on read more items

* Vibe coding to success

* Almost there with read mores

* Update APIs

* Bump sdk

* Update import

* Checkpoint new traversal

* Checkpoint cleanup

* Checkpoint, need to fix blocked posts

* Checkpoint: think we're good, needs more cleanup

* Clean it up

* Two passes only

* Set to default params, update comment

* Fix render bug on native

* Checkpoint parent rendering, can opt for slower handling here

* Clean up parent handling, reply handling

* Fix read more extra space

* Fix read more in linear view

* Fix hidden reply handling, seen count, before/after calc

* Update naming

* Rename Slice to ThreadItem

* Add basic post and anchor skeletons

* Refactor client-side hidden

* WIP hidden fetching

* Update types

* Clean up query a bit

* Scrolling still broken

* Ok maybe fix scrolling

* Checkpoint move state into meta query

* Don't load remote hidden items unless needed

* skeleton view

* Reset hidden items when params change

* Split up traversal and avoid multiple passes

* Clean up

* Checkpoint: handling exhausted replies

* Clean up traversal functions further

* Clean up pagination

* Limit optimistic reply depth

* Handle optimistic insert in hidden replies

* Share root query key for easier cache extraction

* Make blurred posts not look like ass

* Fix double deleted item

* Make optimistic deleted state not look like crap in tree view

* Fix parents traversal 4 real

* Rename tree post

* Make optimistic deletions of linear posts not look bad

* Rename linear post components

* Handle tombstone views

* Rename read more component

* Add moreParents handling

* Align interaction states of read more

* Fix read more on FF

* Tree view skeleton

* Reply composer skele

* Remove hack for showing more replies

* Checkpoint: sort change scrolling fixed

* Checkpoint: learned new things, reset to base

* Feature gate

* Rename

* Replace show more

* Update settings screen

* Update pkg and endpoint

* Remove console

* Eureka

* Cleanup last commit

* No tests atm

* Remove scroll provider

* Clean up callbacks, better error state

* Remove todo

* Remove todo

* Remove todos

* Format

* Ok I think scrolling is solid

* Add back mobile compose input

* Ok need to compute headerHeight every time

* Update comments

* Ok button up web too

* Threads v2 tweaks (#8467)

* fix error screen collapsing

* use personx icon for blocked posts

* Remove height/width

* Revert unused Header change

* Clarify code

* Relate consts to theme values

* Remove debug code

* Typo

* Fix debounce of threads prefs

* Update metadata comments, dev mode

* Missed a spot

* Clean up todo

* Fix up no-unauthenticated posts

* Truncate parents if no-unauth

* Update getBranch docs

* Remove debug code

* Expand fetching in some cases

* Clear scroll need for root post to fix jump bug

* Fix reply composer skeleton state

* Remove uneeded initialized value

* Add profile shadow cache

* Some metrics

* prettier tweak

* eslint ignore

* Fix optimistic insertion

* Typo

* Rename, comment

* Remove wait

* Counter naming

* Replies seen counter for moderated sub-trees

* Remove borders on skeleton

* Align tombstone with optimistic deletion state

* Fix optimistic deletion for thread

* Add tree view icon

* Rename

* Cleanup

* Update settings copy

* Header menu open metric

* Bump package

* Better reply prompt (#8474)

* restyle reply prompt

* hide bottom bar border for cleaner look

* use new border hiding hook in DMs

* create `transparentifyColor` function

* adjust padding

* fix padding in immersive lpayer

* Apply suggestions from code review

Co-authored-by: surfdude29 <149612116+surfdude29@users.noreply.github.com>

* Integrate post-source

(cherry picked from commit fe053e9b38395a4fcb30a4367bc800f64ea84fe9)

---------

Co-authored-by: Samuel Newman <mozzius@protonmail.com>
Co-authored-by: surfdude29 <149612116+surfdude29@users.noreply.github.com>

1 files changed, 170 insertions, 0 deletions

diff --git a/src/state/queries/usePostThread/utils.ts b/src/state/queries/usePostThread/utils.ts
new file mode 100644
index 000000000..b8ab340d8
--- /dev/null
+++ b/src/state/queries/usePostThread/utils.ts
@@ -0,0 +1,170 @@
+import {
+  type AppBskyFeedDefs,
+  AppBskyFeedPost,
+  AppBskyFeedThreadgate,
+  AppBskyUnspeccedDefs,
+  type AppBskyUnspeccedGetPostThreadV2,
+  AtUri,
+} from '@atproto/api'
+
+import {
+  type ApiThreadItem,
+  type ThreadItem,
+  type TraversalMetadata,
+} from '#/state/queries/usePostThread/types'
+import {isDevMode} from '#/storage/hooks/dev-mode'
+import * as bsky from '#/types/bsky'
+
+export function getThreadgateRecord(
+  view: AppBskyUnspeccedGetPostThreadV2.OutputSchema['threadgate'],
+) {
+  return bsky.dangerousIsType<AppBskyFeedThreadgate.Record>(
+    view?.record,
+    AppBskyFeedThreadgate.isRecord,
+  )
+    ? view?.record
+    : undefined
+}
+
+export function getRootPostAtUri(post: AppBskyFeedDefs.PostView) {
+  if (
+    bsky.dangerousIsType<AppBskyFeedPost.Record>(
+      post.record,
+      AppBskyFeedPost.isRecord,
+    )
+  ) {
+    if (post.record.reply?.root?.uri) {
+      return new AtUri(post.record.reply.root.uri)
+    }
+  }
+}
+
+export function getPostRecord(post: AppBskyFeedDefs.PostView) {
+  return post.record as AppBskyFeedPost.Record
+}
+
+export function getTraversalMetadata({
+  item,
+  prevItem,
+  nextItem,
+  parentMetadata,
+}: {
+  item: ApiThreadItem
+  prevItem?: ApiThreadItem
+  nextItem?: ApiThreadItem
+  parentMetadata?: TraversalMetadata
+}): TraversalMetadata {
+  if (!AppBskyUnspeccedDefs.isThreadItemPost(item.value)) {
+    throw new Error(`Expected thread item to be a post`)
+  }
+  const repliesCount = item.value.post.replyCount || 0
+  const repliesUnhydrated = item.value.moreReplies || 0
+  const metadata = {
+    depth: item.depth,
+    /*
+     * Unknown until after traversal
+     */
+    isLastChild: false,
+    /*
+     * Unknown until after traversal
+     */
+    isLastSibling: false,
+    /*
+     * If it's a top level reply, bc we render each top-level branch as a
+     * separate tree, it's implicitly part of the last branch. For subsequent
+     * replies, we'll override this after traversal.
+     */
+    isPartOfLastBranchFromDepth: item.depth === 1 ? 1 : undefined,
+    nextItemDepth: nextItem?.depth,
+    parentMetadata,
+    prevItemDepth: prevItem?.depth,
+    /*
+     * Unknown until after traversal
+     */
+    precedesChildReadMore: false,
+    /*
+     * Unknown until after traversal
+     */
+    followsReadMoreUp: false,
+    postData: {
+      uri: item.uri,
+      authorHandle: item.value.post.author.handle,
+    },
+    repliesCount,
+    repliesUnhydrated,
+    repliesSeenCounter: 0,
+    repliesIndexCounter: 0,
+    replyIndex: 0,
+    skippedIndentIndices: new Set<number>(),
+  }
+
+  if (isDevMode()) {
+    // @ts-ignore dev only for debugging
+    metadata.postData.text = getPostRecord(item.value.post).text
+  }
+
+  return metadata
+}
+
+export function storeTraversalMetadata(
+  metadatas: Map<string, TraversalMetadata>,
+  metadata: TraversalMetadata,
+) {
+  metadatas.set(metadata.postData.uri, metadata)
+
+  if (isDevMode()) {
+    // @ts-ignore dev only for debugging
+    metadatas.set(metadata.postData.text, metadata)
+    // @ts-ignore
+    window.__thread = metadatas
+  }
+}
+
+export function getThreadPostUI({
+  depth,
+  repliesCount,
+  prevItemDepth,
+  isLastChild,
+  skippedIndentIndices,
+  repliesSeenCounter,
+  repliesUnhydrated,
+  precedesChildReadMore,
+  followsReadMoreUp,
+}: TraversalMetadata): Extract<ThreadItem, {type: 'threadPost'}>['ui'] {
+  const isReplyAndHasReplies =
+    depth > 0 &&
+    repliesCount > 0 &&
+    (repliesCount - repliesUnhydrated === repliesSeenCounter ||
+      repliesSeenCounter > 0)
+  return {
+    isAnchor: depth === 0,
+    showParentReplyLine:
+      followsReadMoreUp ||
+      (!!prevItemDepth && prevItemDepth !== 0 && prevItemDepth < depth),
+    showChildReplyLine: depth < 0 || isReplyAndHasReplies,
+    indent: depth,
+    /*
+     * If there are no slices below this one, or the next slice has a depth <=
+     * than the depth of this post, it's the last child of the reply tree. It
+     * is not necessarily the last leaf in the parent branch, since it could
+     * have another sibling.
+     */
+    isLastChild,
+    skippedIndentIndices,
+    precedesChildReadMore: precedesChildReadMore ?? false,
+  }
+}
+
+export function getThreadPostNoUnauthenticatedUI({
+  depth,
+  prevItemDepth,
+}: {
+  depth: number
+  prevItemDepth?: number
+  nextItemDepth?: number
+}): Extract<ThreadItem, {type: 'threadPostNoUnauthenticated'}>['ui'] {
+  return {
+    showChildReplyLine: depth < 0,
+    showParentReplyLine: Boolean(prevItemDepth && prevItemDepth < depth),
+  }
+}