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Fix chat list entry anchors

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This commit is contained in:
Ali 2020-03-26 17:41:46 +04:00
parent a0685b5250
commit aab43f0b0a
1 changed files with 21 additions and 3 deletions
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24
submodules/Postbox/Sources/ChatListViewState.swift
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@ -215,7 +215,7 @@ private final class ChatListViewSpaceState {
if let lastMessage = lowerOrAtAnchorMessages.min(by: { $0.entryIndex < $1.entryIndex }) {
nextLowerIndex = lastMessage.entryIndex
} else {
nextLowerIndex = resolvedAnchorIndex
nextLowerIndex = resolvedAnchorIndex.predecessor
}
let loadedLowerMessages = postbox.chatListTable.entries(groupId: groupId, from: (nextLowerIndex.index, nextLowerIndex.isMessage), to: (lowerBound.index, lowerBound.isMessage), peerChatInterfaceStateTable: postbox.peerChatInterfaceStateTable, count: self.halfLimit - lowerOrAtAnchorMessages.count, predicate: filterPredicate.flatMap { mappedChatListFilterPredicate(postbox: postbox, groupId: groupId, predicate: $0) }).map(mapEntry)
lowerOrAtAnchorMessages.append(contentsOf: loadedLowerMessages)
@ -223,7 +223,7 @@ private final class ChatListViewSpaceState {
if higherThanAnchorMessages.count < self.halfLimit {
var nextHigherIndex: MutableChatListEntryIndex
if let lastMessage = higherThanAnchorMessages.max(by: { $0.entryIndex < $1.entryIndex }) {
nextHigherIndex = lastMessage.entryIndex.successor
nextHigherIndex = lastMessage.entryIndex
} else {
nextHigherIndex = resolvedAnchorIndex
}
@ -238,7 +238,25 @@ private final class ChatListViewSpaceState {
assert(higherThanAnchorMessages.count <= self.halfLimit)
let allIndices = (lowerOrAtAnchorMessages + higherThanAnchorMessages).map { $0.entryIndex }
assert(Set(allIndices).count == allIndices.count)
if Set(allIndices).count != allIndices.count {
var existingIndices = Set<MutableChatListEntryIndex>()
for i in (0 ..< lowerOrAtAnchorMessages.count).reversed() {
if !existingIndices.contains(lowerOrAtAnchorMessages[i].entryIndex) {
existingIndices.insert(lowerOrAtAnchorMessages[i].entryIndex)
} else {
lowerOrAtAnchorMessages.remove(at: i)
}
}
for i in (0 ..< higherThanAnchorMessages.count).reversed() {
if !existingIndices.contains(higherThanAnchorMessages[i].entryIndex) {
existingIndices.insert(higherThanAnchorMessages[i].entryIndex)
} else {
higherThanAnchorMessages.remove(at: i)
}
}
assert(false)
}
assert(allIndices.sorted() == allIndices)
let entries = OrderedChatListViewEntries(anchorIndex: self.anchorIndex.index, lowerOrAtAnchor: lowerOrAtAnchorMessages, higherThanAnchor: higherThanAnchorMessages)