From ef071c09153a1bb843515dff1598beef7932b093 Mon Sep 17 00:00:00 2001
From: Paul Frazee <pfrazee@gmail.com>
Date: Mon, 14 Nov 2022 15:02:42 -0600
Subject: [PATCH] Fix issue causing double-loads of notifications

---
 src/state/models/feed-view.ts          | 15 ++++++---------
 src/state/models/notifications-view.ts |  5 +++++
 2 files changed, 11 insertions(+), 9 deletions(-)

diff --git a/src/state/models/feed-view.ts b/src/state/models/feed-view.ts
index 8e180a35..905f7af7 100644
--- a/src/state/models/feed-view.ts
+++ b/src/state/models/feed-view.ts
@@ -134,9 +134,9 @@ export class FeedModel {
   isLoading = false
   isRefreshing = false
   hasLoaded = false
-  hasReachedEnd = false
   error = ''
   params: GetTimeline.QueryParams | GetAuthorFeed.QueryParams
+  hasMore = true
   loadMoreCursor: string | undefined
   _loadPromise: Promise<void> | undefined
   _loadMorePromise: Promise<void> | undefined
@@ -298,18 +298,15 @@ export class FeedModel {
   }
 
   private async _loadMore() {
+    if (!this.hasMore) {
+      return
+    }
     this._xLoading()
     try {
       const res = await this._getFeed({
         before: this.loadMoreCursor,
       })
-      if (res.data.feed.length === 0) {
-        runInAction(() => {
-          this.hasReachedEnd = true
-        })
-      } else {
-        this._appendAll(res)
-      }
+      this._appendAll(res)
       this._xIdle()
     } catch (e: any) {
       this._xIdle(`Failed to load feed: ${e.toString()}`)
@@ -342,12 +339,12 @@ export class FeedModel {
 
   private _replaceAll(res: GetTimeline.Response | GetAuthorFeed.Response) {
     this.feed.length = 0
-    this.hasReachedEnd = false
     this._appendAll(res)
   }
 
   private _appendAll(res: GetTimeline.Response | GetAuthorFeed.Response) {
     this.loadMoreCursor = res.data.cursor
+    this.hasMore = !!this.loadMoreCursor
     let counter = this.feed.length
     for (const item of res.data.feed) {
       this._append(counter++, item)
diff --git a/src/state/models/notifications-view.ts b/src/state/models/notifications-view.ts
index 43bc0cb4..72cc17f6 100644
--- a/src/state/models/notifications-view.ts
+++ b/src/state/models/notifications-view.ts
@@ -113,6 +113,7 @@ export class NotificationsViewModel {
   hasLoaded = false
   error = ''
   params: ListNotifications.QueryParams
+  hasMore = true
   loadMoreCursor?: string
   _loadPromise: Promise<void> | undefined
   _loadMorePromise: Promise<void> | undefined
@@ -246,6 +247,9 @@ export class NotificationsViewModel {
   }
 
   private async _loadMore() {
+    if (!this.hasMore) {
+      return
+    }
     this._xLoading()
     try {
       const params = Object.assign({}, this.params, {
@@ -291,6 +295,7 @@ export class NotificationsViewModel {
 
   private _appendAll(res: ListNotifications.Response) {
     this.loadMoreCursor = res.data.cursor
+    this.hasMore = !!this.loadMoreCursor
     let counter = this.notifications.length
     for (const item of groupNotifications(res.data.notifications)) {
       this._append(counter++, item)