Improved types for IPowerLevelsContent and hasSufficientPowerLevelFor

src/models/room-state.ts

@@ -53,13 +53,15 @@ enum OobStatus {
 export interface IPowerLevelsContent {
     users?: Record<string, number>;
     events?: Record<string, number>;
+    notifications?: Partial<Record<"room", number>>;
     // eslint-disable-next-line camelcase
     users_default?: number;
     // eslint-disable-next-line camelcase
     events_default?: number;
     // eslint-disable-next-line camelcase
     state_default?: number;
     ban?: number;
+    invite?: number;
     kick?: number;
     redact?: number;
 }
@@ -130,6 +132,8 @@ export type RoomStateEventHandlerMap = {
 type EmittedEvents = RoomStateEvent | BeaconEvent;
 type EventHandlerMap = RoomStateEventHandlerMap & BeaconEventHandlerMap;
 
+type KeysMatching<T, V> = { [K in keyof T]-?: T[K] extends V ? K : never }[keyof T];
+
 export class RoomState extends TypedEventEmitter<EmittedEvents, EventHandlerMap> {
     public readonly reEmitter = new TypedReEmitter<EmittedEvents, EventHandlerMap>(this);
     private sentinels: Record<string, RoomMember> = {}; // userId: RoomMember
@@ -800,7 +804,7 @@ export class RoomState extends TypedEventEmitter<EmittedEvents, EventHandlerMap>
      * @param powerLevel - The power level of the member
      * @returns true if the given power level is sufficient
      */
-    public hasSufficientPowerLevelFor(action: "ban" | "kick" | "redact", powerLevel: number): boolean {
+    public hasSufficientPowerLevelFor(action: KeysMatching<Required<IPowerLevelsContent>, number>, powerLevel: number): boolean {
         const powerLevelsEvent = this.getStateEvents(EventType.RoomPowerLevels, "");
 
         let powerLevels: IPowerLevelsContent = {};