more temp

src/state/remoteMembers/matrixLivekitMerger.ts

@@ -31,17 +31,18 @@ import {
 
 import { type ObservableScope } from "../ObservableScope";
 import { type Connection } from "./Connection";
-import { Behavior } from "../Behavior";
-import { RoomMember } from "matrix-js-sdk";
+import { Behavior, constant } from "../Behavior";
+import { Room as MatrixRoom, RoomMember } from "matrix-js-sdk";
 import { getRoomMemberFromRtcMember } from "./displayname";
-
+import { pauseWhen } from "../../utils/observable";
 
 // TODOs:
 // - make ConnectionManager its own actual class
 // - write test for scopes (do we really need to bind scope)
 class ConnectionManager {
   constructor(transports$: Observable<Transport[]>) {}
-  public readonly connections$: Observable<Connection[]>;
+  public startWithMemberships(memberships$: Behavior<CallMembership[]>) {}
+  public readonly connections$: Observable<Connection[]> = constant([]);
 }
 
 /**
@@ -51,16 +52,14 @@ class ConnectionManager {
  */
 
 export interface MatrixLivekitItem {
-  callMembership: CallMembership;
+  membership: CallMembership;
   livekitParticipant?: LivekitParticipant;
+  member?: RoomMember;
 }
 
 // Alternative structure idea:
 // const livekitMatrixItems$ = (callMemberships$,connectionManager,scope): Observable<MatrixLivekitItem[]> => {
 
-  // Map of Connection -> to (callMembership, LivekitParticipant?))
-type participants = {participant: LocalParticipant | RemoteParticipant}[]
-
 interface LivekitRoomWithParticipants {
   livekitRoom: LivekitRoom;
   url: string; // Included for use as a React key
@@ -87,14 +86,12 @@ interface LivekitRoomWithParticipants {
  *    - `remoteMatrixLivekitItems` an observable of MatrixLivekitItem[] to track the remote members and associated livekit data.
  */
 export class MatrixLivekitMerger {
-  public remoteMatrixLivekitItems$: Observable<MatrixLivekitItem[]>;
-
   /**
    * The MatrixRTC session participants.
    */
   // Note that MatrixRTCSession already filters the call memberships by users
   // that are joined to the room; we don't need to perform extra filtering here.
-  private readonly memberships$ = this.scope.behavior(
+  public readonly memberships$ = this.scope.behavior(
     fromEvent(
       this.matrixRTCSession,
       MatrixRTCSessionEvent.MembershipsChanged,
@@ -108,16 +105,9 @@ export class MatrixLivekitMerger {
     private matrixRTCSession: MatrixRTCSession,
     private connectionManager: ConnectionManager,
     private scope: ObservableScope,
+    private matrixRoom: MatrixRoom,
   ) {
-    const publishingParticipants$ = combineLatest([
-      this.memberships$,
-      connectionManager.connections$,
-    ]).pipe(map(), this.scope.bind());
-    this.remoteMatrixLivekitItems$ = combineLatest([
-      callMemberships$,
-      connectionManager.connections$,
-    ]).pipe(this.scope.bind());
-    // Implementation goes here
+    connectionManager.startWithMemberships(this.memberships$);
   }
 
   /**
@@ -128,6 +118,7 @@ export class MatrixLivekitMerger {
    * together when it might change together is what you have to do in RxJS to
    * avoid reading inconsistent state or observing too many changes.)
    */
+  // TODO pass this over to our conncetions
   private readonly membershipsWithTransport$: Behavior<{
     membership: CallMembership;
     transport?: LivekitTransport;
@@ -137,63 +128,47 @@ export class MatrixLivekitMerger {
         const oldestMembership = this.matrixRTCSession.getOldestMembership();
 
         memberships.map((membership) => {
-          let transport = membership.getTransport(oldestMembership ?? membership)
-          return { membership, transport: isLivekitTransport(transport) ? transport : undefined };
-        })
+          let transport = membership.getTransport(
+            oldestMembership ?? membership,
+          );
+          return {
+            membership,
+            transport: isLivekitTransport(transport) ? transport : undefined,
+          };
+        });
       }),
     ),
   );
 
-  /**
-   * Lists the transports used by each MatrixRTC session member other than
-   * ourselves.
-   */
-  // private readonly remoteTransports$ = this.scope.behavior(
-  //   this.membershipsWithTransport$.pipe(
-  //     map((transports) => transports?.remote ?? []),
-  //   ),
-  // );
-
-  /**
-   * Lists, for each LiveKit room, the LiveKit participants whose media should
-   * be presented.
-   */
-  private readonly participantsByRoom$ = this.scope.behavior<LivekitRoomWithParticipants[]>(
-    // TODO: Move this logic into Connection/PublishConnection if possible
-
-           this.connectionManager.connections$.pipe(
-            switchMap((connections) => {
-                  connections.map((c)=>c.publishingParticipants$.pipe(
-                    map((publishingParticipants) => {
-                      const participants: {
-                        id: string;
-                        participant: LivekitParticipant | undefined;
-                        member: RoomMember;
-                      }[] = publishingParticipants.map(({ participant, membership }) => ({
-                        // TODO update to UUID
-                        id: `${membership.userId}:${membership.deviceId}`,
-                        participant,
-                        // This makes sense to add the the js-sdk callMembership (we only need the avatar so probably the call memberhsip just should aquire the avatar)
-                        member:
-                          getRoomMemberFromRtcMember(
-                            membership,
-                            this.matrixRoom,
-                          )?.member ?? memberError(),
-                      }));
-
-                      return {
-                        livekitRoom: c.livekitRoom,
-                        url: c.transport.livekit_service_url,
-                        participants,
-                      };
-                    }),
-                  ),
-                ),
-              ),
-            ),
-          );
-        }),
-      )
-      .pipe(startWith([]), pauseWhen(this.pretendToBeDisconnected$)),
+  private allPublishingParticipants$ = this.connectionManager.connections$.pipe(
+    switchMap((connections) => {
+      const listOfPublishingParticipants = connections.map(
+        (connection) => connection.publishingParticipants$,
+      );
+      return combineLatest(listOfPublishingParticipants).pipe(
+        map((list) => list.flatMap((innerList) => innerList)),
+      );
+    }),
   );
+
+  public readonly matrixLivekitItems$ = this.scope
+    .behavior<MatrixLivekitItem[]>(
+      this.allPublishingParticipants$.pipe(
+        map((participants) => {
+          const matrixLivekitItems: MatrixLivekitItem[] = participants.map(
+            ({ participant, membership }) => ({
+              participant,
+              membership,
+              id: `${membership.userId}:${membership.deviceId}`,
+              // This makes sense to add the the js-sdk callMembership (we only need the avatar so probably the call memberhsip just should aquire the avatar)
+              member:
+                getRoomMemberFromRtcMember(membership, this.matrixRoom)
+                  ?.member ?? memberError(),
+            }),
+          );
+          return matrixLivekitItems;
+        }),
+      ),
+    )
+    .pipe(startWith([]), pauseWhen(this.pretendToBeDisconnected$));
 }