Add group calling events to the message timeline

ts/util/callingNotification.ts

@@ -0,0 +1,108 @@
+// Copyright 2020 Signal Messenger, LLC
+// SPDX-License-Identifier: AGPL-3.0-only
+
+import { LocalizerType } from '../types/Util';
+import { CallMode } from '../types/Calling';
+import { missingCaseError } from './missingCaseError';
+
+interface DirectCallNotificationType {
+  callMode: CallMode.Direct;
+  wasIncoming: boolean;
+  wasVideoCall: boolean;
+  wasDeclined: boolean;
+  acceptedTime?: number;
+  endedTime: number;
+}
+
+interface GroupCallNotificationType {
+  activeCallConversationId?: string;
+  callMode: CallMode.Group;
+  conversationId: string;
+  creator?: {
+    firstName?: string;
+    isMe?: boolean;
+    title: string;
+  };
+  ended: boolean;
+  deviceCount: number;
+  maxDevices: number;
+  startedTime: number;
+}
+
+export type CallingNotificationType =
+  | DirectCallNotificationType
+  | GroupCallNotificationType;
+
+function getDirectCallNotificationText(
+  {
+    wasIncoming,
+    wasVideoCall,
+    wasDeclined,
+    acceptedTime,
+  }: DirectCallNotificationType,
+  i18n: LocalizerType
+): string {
+  const wasAccepted = Boolean(acceptedTime);
+
+  if (wasIncoming) {
+    if (wasDeclined) {
+      if (wasVideoCall) {
+        return i18n('declinedIncomingVideoCall');
+      }
+      return i18n('declinedIncomingAudioCall');
+    }
+    if (wasAccepted) {
+      if (wasVideoCall) {
+        return i18n('acceptedIncomingVideoCall');
+      }
+      return i18n('acceptedIncomingAudioCall');
+    }
+    if (wasVideoCall) {
+      return i18n('missedIncomingVideoCall');
+    }
+    return i18n('missedIncomingAudioCall');
+  }
+  if (wasAccepted) {
+    if (wasVideoCall) {
+      return i18n('acceptedOutgoingVideoCall');
+    }
+    return i18n('acceptedOutgoingAudioCall');
+  }
+  if (wasVideoCall) {
+    return i18n('missedOrDeclinedOutgoingVideoCall');
+  }
+  return i18n('missedOrDeclinedOutgoingAudioCall');
+}
+
+function getGroupCallNotificationText(
+  notification: GroupCallNotificationType,
+  i18n: LocalizerType
+): string {
+  if (notification.ended) {
+    return i18n('calling__call-notification__ended');
+  }
+  if (!notification.creator) {
+    return i18n('calling__call-notification__started-by-someone');
+  }
+  if (notification.creator.isMe) {
+    return i18n('calling__call-notification__started-by-you');
+  }
+  return i18n('calling__call-notification__started', [
+    notification.creator.firstName || notification.creator.title,
+  ]);
+}
+
+export function getCallingNotificationText(
+  notification: CallingNotificationType,
+  i18n: LocalizerType
+): string {
+  switch (notification.callMode) {
+    case CallMode.Direct:
+      return getDirectCallNotificationText(notification, i18n);
+    case CallMode.Group:
+      return getGroupCallNotificationText(notification, i18n);
+    default:
+      window.log.error(missingCaseError(notification));
+      return '';
+  }
+}