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diff --git a/lib/selectors/chat-selectors.js b/lib/selectors/chat-selectors.js
--- a/lib/selectors/chat-selectors.js
+++ b/lib/selectors/chat-selectors.js
@@ -121,97 +121,88 @@
: threadInfo.creationTime;
}
-function createChatThreadItem(
- threadInfo: ThreadInfo,
- messageStore: MessageStore,
- messages: { +[id: string]: ?MessageInfo },
- sidebarInfos: ?$ReadOnlyArray<SidebarInfo>,
-): ChatThreadItem {
- const mostRecentMessageInfo = getMostRecentMessageInfo(
- threadInfo,
- messageStore,
- messages,
- );
- const mostRecentNonLocalMessage = getMostRecentNonLocalMessageID(
- threadInfo.id,
- messageStore,
- );
- const lastUpdatedTime = getLastUpdatedTime(threadInfo, mostRecentMessageInfo);
-
- const sidebars = sidebarInfos ?? [];
- const allSidebarItems = sidebars.map(sidebarInfo => ({
- type: 'sidebar',
- ...sidebarInfo,
- }));
- const lastUpdatedTimeIncludingSidebars =
- allSidebarItems.length > 0
- ? Math.max(lastUpdatedTime, allSidebarItems[0].lastUpdatedTime)
- : lastUpdatedTime;
-
- const numUnreadSidebars = allSidebarItems.filter(
- sidebar => sidebar.threadInfo.currentUser.unread,
- ).length;
- let numReadSidebarsToShow = maxReadSidebars - numUnreadSidebars;
- const threeDaysAgo = Date.now() - threeDays;
-
- const sidebarItems: SidebarItem[] = [];
- for (const sidebar of allSidebarItems) {
- if (sidebarItems.length >= maxUnreadSidebars) {
- break;
- } else if (sidebar.threadInfo.currentUser.unread) {
- sidebarItems.push(sidebar);
- } else if (
- sidebar.lastUpdatedTime > threeDaysAgo &&
- numReadSidebarsToShow > 0
- ) {
- sidebarItems.push(sidebar);
- numReadSidebarsToShow--;
- }
- }
-
- const numReadButRecentSidebars = allSidebarItems.filter(
- sidebar =>
- !sidebar.threadInfo.currentUser.unread &&
- sidebar.lastUpdatedTime > threeDaysAgo,
- ).length;
- if (
- sidebarItems.length < numUnreadSidebars + numReadButRecentSidebars ||
- (sidebarItems.length < allSidebarItems.length && sidebarItems.length > 0)
- ) {
- sidebarItems.push({
- type: 'seeMore',
- unread: numUnreadSidebars > maxUnreadSidebars,
- });
- }
- if (sidebarItems.length !== 0) {
- sidebarItems.push({
- type: 'spacer',
- });
- }
-
- return {
- type: 'chatThreadItem',
- threadInfo,
- mostRecentMessageInfo,
- mostRecentNonLocalMessage,
- lastUpdatedTime,
- lastUpdatedTimeIncludingSidebars,
- sidebars: sidebarItems,
- };
-}
-
function useCreateChatThreadItem(): ThreadInfo => ChatThreadItem {
const messageInfos = useSelector(messageInfoSelector);
const sidebarInfos = useSelector(sidebarInfoSelector);
const messageStore = useSelector(state => state.messageStore);
return React.useCallback(
- threadInfo =>
- createChatThreadItem(
+ threadInfo => {
+ const mostRecentMessageInfo = getMostRecentMessageInfo(
threadInfo,
messageStore,
messageInfos,
- sidebarInfos[threadInfo.id],
- ),
+ );
+ const mostRecentNonLocalMessage = getMostRecentNonLocalMessageID(
+ threadInfo.id,
+ messageStore,
+ );
+ const lastUpdatedTime = getLastUpdatedTime(
+ threadInfo,
+ mostRecentMessageInfo,
+ );
+
+ const sidebars = sidebarInfos[threadInfo.id] ?? [];
+ const allSidebarItems = sidebars.map(sidebarInfo => ({
+ type: 'sidebar',
+ ...sidebarInfo,
+ }));
+ const lastUpdatedTimeIncludingSidebars =
+ allSidebarItems.length > 0
+ ? Math.max(lastUpdatedTime, allSidebarItems[0].lastUpdatedTime)
+ : lastUpdatedTime;
+
+ const numUnreadSidebars = allSidebarItems.filter(
+ sidebar => sidebar.threadInfo.currentUser.unread,
+ ).length;
+ let numReadSidebarsToShow = maxReadSidebars - numUnreadSidebars;
+ const threeDaysAgo = Date.now() - threeDays;
+
+ const sidebarItems: SidebarItem[] = [];
+ for (const sidebar of allSidebarItems) {
+ if (sidebarItems.length >= maxUnreadSidebars) {
+ break;
+ } else if (sidebar.threadInfo.currentUser.unread) {
+ sidebarItems.push(sidebar);
+ } else if (
+ sidebar.lastUpdatedTime > threeDaysAgo &&
+ numReadSidebarsToShow > 0
+ ) {
+ sidebarItems.push(sidebar);
+ numReadSidebarsToShow--;
+ }
+ }
+
+ const numReadButRecentSidebars = allSidebarItems.filter(
+ sidebar =>
+ !sidebar.threadInfo.currentUser.unread &&
+ sidebar.lastUpdatedTime > threeDaysAgo,
+ ).length;
+ if (
+ sidebarItems.length < numUnreadSidebars + numReadButRecentSidebars ||
+ (sidebarItems.length < allSidebarItems.length &&
+ sidebarItems.length > 0)
+ ) {
+ sidebarItems.push({
+ type: 'seeMore',
+ unread: numUnreadSidebars > maxUnreadSidebars,
+ });
+ }
+ if (sidebarItems.length !== 0) {
+ sidebarItems.push({
+ type: 'spacer',
+ });
+ }
+
+ return {
+ type: 'chatThreadItem',
+ threadInfo,
+ mostRecentMessageInfo,
+ mostRecentNonLocalMessage,
+ lastUpdatedTime,
+ lastUpdatedTimeIncludingSidebars,
+ sidebars: sidebarItems,
+ };
+ },
[messageInfos, messageStore, sidebarInfos],
);
}

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