From 1d8c8131352d05d796a6baf65a09fbdd1726fedf Mon Sep 17 00:00:00 2001
From: Roger Braun <roger@rogerbraun.net>
Date: Fri, 25 Nov 2016 16:56:08 +0100
Subject: [PATCH] Better handling of favorites.

---
 src/modules/statuses.js                  | 16 ++++++++++--
 test/unit/specs/modules/statuses.spec.js | 33 ++++++++++++++++++++++--
 2 files changed, 45 insertions(+), 4 deletions(-)

diff --git a/src/modules/statuses.js b/src/modules/statuses.js
index 734ffc8a..37115506 100644
--- a/src/modules/statuses.js
+++ b/src/modules/statuses.js
@@ -7,6 +7,7 @@ export const defaultState = {
   allStatuses: [],
   maxId: 0,
   notifications: [],
+  favorites: new Set(),
   timelines: {
     public: {
       statuses: [],
@@ -147,6 +148,13 @@ const addNewStatuses = (state, { statuses, showImmediately = false, timeline, us
     const status = find(allStatuses, { id: toInteger(favorite.in_reply_to_status_id) })
     if (status) {
       status.fave_num += 1
+
+      // This is our favorite, so the relevant bit.
+      if (favorite.user.id === user.id) {
+        status.favorited = true
+      }
+
+      // Add a notification if the user's status is favorited
       if (status.user.id === user.id) {
         addNotification({type: 'favorite', status, action: favorite})
       }
@@ -175,8 +183,12 @@ const addNewStatuses = (state, { statuses, showImmediately = false, timeline, us
       retweet.retweeted_status = retweetedStatus
     },
     'favorite': (favorite) => {
-      updateMaxId(favorite)
-      favoriteStatus(favorite)
+      // Only update if this is a new favorite.
+      if (!state.favorites.has(favorite.id)) {
+        state.favorites.add(favorite.id)
+        updateMaxId(favorite)
+        favoriteStatus(favorite)
+      }
     },
     'deletion': (deletion) => {
       const uri = deletion.uri
diff --git a/test/unit/specs/modules/statuses.spec.js b/test/unit/specs/modules/statuses.spec.js
index a50e4f9c..f068bb92 100644
--- a/test/unit/specs/modules/statuses.spec.js
+++ b/test/unit/specs/modules/statuses.spec.js
@@ -197,7 +197,8 @@ describe('The Statuses module', () => {
       is_post_verb: false,
       in_reply_to_status_id: '1', // The API uses strings here...
       uri: 'tag:shitposter.club,2016-08-21:fave:3895:note:773501:2016-08-21T16:52:15+00:00',
-      text: 'a favorited something by b'
+      text: 'a favorited something by b',
+      user: {}
     }
 
     mutations.addNewStatuses(state, { statuses: [status], showImmediately: true, timeline: 'public' })
@@ -206,6 +207,33 @@ describe('The Statuses module', () => {
     expect(state.timelines.public.visibleStatuses.length).to.eql(1)
     expect(state.timelines.public.visibleStatuses[0].fave_num).to.eql(1)
     expect(state.timelines.public.maxId).to.eq(favorite.id)
+
+    // Adding it again does nothing
+    mutations.addNewStatuses(state, { statuses: [favorite], showImmediately: true, timeline: 'public' })
+
+    expect(state.timelines.public.visibleStatuses.length).to.eql(1)
+    expect(state.timelines.public.visibleStatuses[0].fave_num).to.eql(1)
+    expect(state.timelines.public.maxId).to.eq(favorite.id)
+
+    // If something is favorited by the current user, it also sets the 'favorited' property
+    const user = {
+      id: 1
+    }
+
+    const ownFavorite = {
+      id: 3,
+      is_post_verb: false,
+      in_reply_to_status_id: '1', // The API uses strings here...
+      uri: 'tag:shitposter.club,2016-08-21:fave:3895:note:773501:2016-08-21T16:52:15+00:00',
+      text: 'a favorited something by b',
+      user
+    }
+
+    mutations.addNewStatuses(state, { statuses: [ownFavorite], showImmediately: true, timeline: 'public', user })
+
+    expect(state.timelines.public.visibleStatuses.length).to.eql(1)
+    expect(state.timelines.public.visibleStatuses[0].fave_num).to.eql(2)
+    expect(state.timelines.public.visibleStatuses[0].favorited).to.eql(true)
   })
 
   describe('notifications', () => {
@@ -220,7 +248,8 @@ describe('The Statuses module', () => {
         is_post_verb: false,
         in_reply_to_status_id: '1', // The API uses strings here...
         uri: 'tag:shitposter.club,2016-08-21:fave:3895:note:773501:2016-08-21T16:52:15+00:00',
-        text: 'a favorited something by b'
+        text: 'a favorited something by b',
+        user: {}
       }
 
       mutations.addNewStatuses(state, { statuses: [status], showImmediately: true, timeline: 'public', user })