RemoveStatusService fleshed out, still doesn't send Salmon slaps though

app/assets/javascripts/components/actions/timelines.jsx

@@ -1,6 +1,6 @@
 export const TIMELINE_SET    = 'TIMELINE_SET';
 export const TIMELINE_UPDATE = 'TIMELINE_UPDATE';
-
+export const TIMELINE_DELETE = 'TIMELINE_DELETE';
 
 export function setTimeline(timeline, statuses) {
   return {
@@ -17,3 +17,10 @@ export function updateTimeline(timeline, status) {
     status: status
   };
 }
+
+export function deleteFromTimeline(id) {
+  return {
+    type: TIMELINE_DELETE,
+    id: id
+  };
+}

app/assets/javascripts/components/containers/root.jsx

@@ -1,7 +1,7 @@
 import { Provider }                                         from 'react-redux';
 import configureStore                                       from '../store/configureStore';
 import Frontend                                             from '../components/frontend';
-import { setTimeline, updateTimeline } from '../actions/timelines';
+import { setTimeline, updateTimeline, deleteFromTimelines } from '../actions/timelines';
 import { setAccessToken }                                   from '../actions/meta';
 import PureRenderMixin                                      from 'react-addons-pure-render-mixin';
 
@@ -32,7 +32,11 @@ const Root = React.createClass({
         disconnected: function() {},
 
         received: function(data) {
+          if (data.type === 'update') {
             return store.dispatch(updateTimeline(data.timeline, JSON.parse(data.message)));
+          } else if (data.type === 'delete') {
+            return store.dispatch(deleteFromTimelines(data.id));
+          }
         }
       });
     }

app/assets/javascripts/components/reducers/timelines.jsx

@@ -1,10 +1,10 @@
-import { TIMELINE_SET, TIMELINE_UPDATE }    from '../actions/timelines';
+import { TIMELINE_SET, TIMELINE_UPDATE, TIMELINE_DELETE } from '../actions/timelines';
 import { REBLOG_SUCCESS, FAVOURITE_SUCCESS }              from '../actions/interactions';
 import Immutable                                          from 'immutable';
 
 const initialState = Immutable.Map({
-  home: Immutable.List(),
-  mentions: Immutable.List(),
+  home: Immutable.List([]),
+  mentions: Immutable.List([]),
   statuses: Immutable.Map(),
   accounts: Immutable.Map()
 });
@@ -44,12 +44,22 @@ function updateTimelineWithMaps(state, timeline, status) {
   return state;
 };
 
+function deleteStatus(state, id) {
+  ['home', 'mentions'].forEach(function (timeline) {
+    state = state.update(timeline, list => list.filterNot(item => item === id));
+  });
+
+  return state.deleteIn(['statuses', id]);
+};
+
 export default function timelines(state = initialState, action) {
   switch(action.type) {
     case TIMELINE_SET:
       return timelineToMaps(state, action.timeline, Immutable.fromJS(action.statuses));
     case TIMELINE_UPDATE:
       return updateTimelineWithMaps(state, action.timeline, Immutable.fromJS(action.status));
+    case TIMELINE_DELETE:
+      return deleteStatus(state, action.id);
     case REBLOG_SUCCESS:
     case FAVOURITE_SUCCESS:
       return statusToMaps(state, Immutable.fromJS(action.response));

app/services/fan_out_on_write_service.rb

@@ -31,7 +31,7 @@ class FanOutOnWriteService < BaseService
   def push(type, receiver, status)
     redis.zadd(FeedManager.key(type, receiver.id), status.id, status.id)
     trim(type, receiver)
-    ActionCable.server.broadcast("timeline:#{receiver.id}", timeline: type, message: inline_render(receiver, status))
+    ActionCable.server.broadcast("timeline:#{receiver.id}", type: 'update', timeline: type, message: inline_render(receiver, status))
   end
 
   def trim(type, receiver)

app/services/remove_status_service.rb

@@ -1,10 +1,54 @@
 class RemoveStatusService < BaseService
   def call(status)
-    status.destroy!
+    remove_from_self(status) if status.account.local?
+    remove_from_followers(status)
+    remove_from_mentioned(status)
+    remove_reblogs(status)
 
+    status.destroy!
+  end
+
+  private
+
+  def remove_from_self(status)
+    unpush(:home, status.account, status)
+  end
+
+  def remove_from_followers(status)
+    status.account.followers.each do |follower|
+      next unless follower.local?
+      unpush(:home, follower, status)
+    end
+  end
+
+  def remove_from_mentioned(status)
+    status.mentions.each do |mention|
+      mentioned_account = mention.account
+
+      if mentioned_account.local?
+        unpush(:mentions, mentioned_account, status)
+      else
+        send_delete_salmon(mentioned_account, status)
+      end
+    end
+  end
+
+  def send_delete_salmon(account, status)
     # TODO
-    # Remove from timelines of self, followers, and mentioned accounts
-    # For remote mentioned accounts, send delete Salmon
-    # Push delete event through ActionCable
+  end
+
+  def remove_reblogs(status)
+    status.reblogs.each do |reblog|
+      RemoveStatusService.new.(reblog)
+    end
+  end
+
+  def unpush(type, receiver, status)
+    redis.zremrangebyscore(FeedManager.key(type, receiver.id), status.id, status.id)
+    ActionCable.server.broadcast("timeline:#{receiver.id}", type: 'delete', id: status.id)
+  end
+
+  def redis
+    $redis
   end
 end