Only connect to chat when authenticating in the first place

To avoid duplication of the connection, the chat socket is destroyed
upon logging out.

src/boot/after_store.js

@@ -89,10 +89,8 @@ const afterStoreSetup = ({ store, i18n }) => {
           copyInstanceOption('noAttachmentLinks')
           copyInstanceOption('showFeaturesPanel')
 
-          if ((config.chatDisabled)) {
+          if (config.chatDisabled) {
             store.dispatch('disableChat')
-          } else {
-            store.dispatch('initializeSocket')
           }
 
           return store.dispatch('setTheme', config['theme'])

src/modules/api.js

@@ -50,7 +50,7 @@ const api = {
     },
     initializeSocket (store) {
       // Set up websocket connection
-      if (!store.state.chatDisabled && store.state.wsToken) {
+      if (!store.state.chatDisabled) {
         const token = store.state.wsToken
         const socket = new Socket('/socket', {params: {token}})
         socket.connect()

src/modules/chat.js

@@ -1,12 +1,16 @@
 const chat = {
   state: {
     messages: [],
-    channel: {state: ''}
+    channel: {state: ''},
+    socket: null
   },
   mutations: {
     setChannel (state, channel) {
       state.channel = channel
     },
+    setSocket (state, socket) {
+      state.socket = socket
+    },
     addMessage (state, message) {
       state.messages.push(message)
       state.messages = state.messages.slice(-19, 20)
@@ -16,8 +20,12 @@ const chat = {
     }
   },
   actions: {
+    disconnectFromChat (store) {
+      store.state.socket.disconnect()
+    },
     initializeChat (store, socket) {
       const channel = socket.channel('chat:public')
+      store.commit('setSocket', socket)
       channel.on('new_msg', (msg) => {
         store.commit('addMessage', msg)
       })

src/modules/users.js

@@ -292,6 +292,7 @@ const users = {
 
     logout (store) {
       store.commit('clearCurrentUser')
+      store.dispatch('disconnectFromChat')
       store.commit('setToken', false)
       store.dispatch('stopFetching', 'friends')
       store.commit('setBackendInteractor', backendInteractorService())
@@ -321,6 +322,9 @@ const users = {
 
               if (user.token) {
                 store.dispatch('setWsToken', user.token)
+
+                // Initialize the chat socket.
+                store.dispatch('initializeSocket')
               }
 
               // Start getting fresh posts.