Chat Federation, connection to remote chat:

Front-end connect using BOSH or WS directly on the remote server.
If use is logged-in, his nickname is use as default nickname.

shared/lib/video.ts

@@ -1,6 +1,6 @@
 import { parseConfigUUIDs } from './config'
 
-interface SharedSettings {
+interface VideoHasWebchatSettings {
   'chat-per-live-video': boolean
   'chat-all-lives': boolean
   'chat-all-non-lives': boolean
@@ -12,6 +12,7 @@ interface SharedVideoBase {
   isLive: boolean
   pluginData?: {
     'livechat-active'?: boolean
+    'livechat-remote'?: boolean
   }
 }
 
@@ -25,7 +26,13 @@ interface SharedVideoBackend extends SharedVideoBase {
 
 type SharedVideo = SharedVideoBackend | SharedVideoFrontend
 
-function videoHasWebchat (settings: SharedSettings, video: SharedVideo): boolean {
+/**
+ * Indicate if the video has a local chat.
+ * @param settings plugin settings
+ * @param video the video
+ * @returns true if the video has a local chat
+ */
+function videoHasWebchat (settings: VideoHasWebchatSettings, video: SharedVideo): boolean {
   // Never use webchat on remote videos.
   if ('isLocal' in video) {
     if (!video.isLocal) return false
@@ -53,6 +60,29 @@ function videoHasWebchat (settings: SharedSettings, video: SharedVideo): boolean
   return false
 }
 
-export {
-  videoHasWebchat
+interface VideoHasRemoteWebchatSettings {
+  'federation-no-remote-chat': boolean
+}
+
+/**
+ * Indicates if the video has a remote chat.
+ * @param settings plugin settings
+ * @param video the video
+ * @returns true if the video has a remote chat
+ */
+function videoHasRemoteWebchat (settings: VideoHasRemoteWebchatSettings, video: SharedVideo): boolean {
+  if (settings['federation-no-remote-chat']) { return false }
+  if ('isLocal' in video) {
+    if (video.isLocal) return false
+  } else {
+    if (!video.remote) return false
+  }
+  if (!video.pluginData) { return false }
+  if (!video.pluginData['livechat-remote']) { return false }
+  return true
+}
+
+export {
+  videoHasWebchat,
+  videoHasRemoteWebchat
 }