Add slash command to switch to a room's virtual room (#7839)

* Add slash command to switch to a room's virtual room

* Update to new interface

* Return null if no virtual user

* Throw newTranslateableError

* Types

* Disable tovirtual if virtual rooms not supported

src/SlashCommands.tsx

@@ -65,6 +65,7 @@ import RoomViewStore from "./stores/RoomViewStore";
 import { XOR } from "./@types/common";
 import { PosthogAnalytics } from "./PosthogAnalytics";
 import { ViewRoomPayload } from "./dispatcher/payloads/ViewRoomPayload";
+import VoipUserMapper from './VoipUserMapper';
 
 // XXX: workaround for https://github.com/microsoft/TypeScript/issues/31816
 interface HTMLInputEvent extends Event {
@@ -1129,6 +1130,26 @@ export const Commands = [
         },
         category: CommandCategories.advanced,
     }),
+    new Command({
+        command: "tovirtual",
+        description: _td("Switches to this room's virtual room, if it has one"),
+        category: CommandCategories.advanced,
+        isEnabled(): boolean {
+            return CallHandler.instance.getSupportsVirtualRooms();
+        },
+        runFn: (roomId) => {
+            return success((async () => {
+                const room = await VoipUserMapper.sharedInstance().getVirtualRoomForRoom(roomId);
+                if (!room) throw newTranslatableError("No virtual room for this room");
+                dis.dispatch<ViewRoomPayload>({
+                    action: Action.ViewRoom,
+                    room_id: room.roomId,
+                    metricsTrigger: "SlashCommand",
+                    metricsViaKeyboard: true,
+                });
+            })());
+        },
+    }),
     new Command({
         command: "query",
         description: _td("Opens chat with the given user"),

src/VoipUserMapper.ts

@@ -42,13 +42,20 @@ export default class VoipUserMapper {
         return results[0].userid;
     }
 
-    public async getOrCreateVirtualRoomForRoom(roomId: string): Promise<string> {
+    private async getVirtualUserForRoom(roomId: string): Promise<string | null> {
         const userId = DMRoomMap.shared().getUserIdForRoomId(roomId);
         if (!userId) return null;
 
         const virtualUser = await this.userToVirtualUser(userId);
         if (!virtualUser) return null;
 
+        return virtualUser;
+    }
+
+    public async getOrCreateVirtualRoomForRoom(roomId: string): Promise<string | null> {
+        const virtualUser = await this.getVirtualUserForRoom(roomId);
+        if (!virtualUser) return null;
+
         const virtualRoomId = await ensureVirtualRoomExists(MatrixClientPeg.get(), virtualUser, roomId);
         MatrixClientPeg.get().setRoomAccountData(virtualRoomId, VIRTUAL_ROOM_EVENT_TYPE, {
             native_room: roomId,
@@ -59,6 +66,17 @@ export default class VoipUserMapper {
         return virtualRoomId;
     }
 
+    /**
+     * Gets the ID of the virtual room for a room, or null if the room has no
+     * virtual room
+     */
+    public async getVirtualRoomForRoom(roomId: string): Promise<Room | null> {
+        const virtualUser = await this.getVirtualUserForRoom(roomId);
+        if (!virtualUser) return null;
+
+        return findDMForUser(MatrixClientPeg.get(), virtualUser);
+    }
+
     public nativeRoomForVirtualRoom(roomId: string): string {
         const cachedNativeRoomId = this.virtualToNativeRoomIdCache.get(roomId);
         if (cachedNativeRoomId) {

src/i18n/strings/en_EN.json

@@ -486,6 +486,8 @@
     "Displays list of commands with usages and descriptions": "Displays list of commands with usages and descriptions",
     "Displays information about a user": "Displays information about a user",
     "Send a bug report with logs": "Send a bug report with logs",
+    "Switches to this room's virtual room, if it has one": "Switches to this room's virtual room, if it has one",
+    "No virtual room for this room": "No virtual room for this room",
     "Opens chat with the given user": "Opens chat with the given user",
     "Unable to find Matrix ID for phone number": "Unable to find Matrix ID for phone number",
     "Sends a message to the given user": "Sends a message to the given user",