{
      fromCache: false,
      fromServiceWorker: false,
      isCachedResource: false,
    });

    this.#emitWindowGlobalNetworkResource(data.channel, request, response);
  };

  #startListening() {
    if (this.#subscribedEvents.size == 0) {
      this.#beforeStopRequestListener.startListening();
      this.#cachedResourceListener.startListening();
      this.#dataChannelListener.startListening();
    }
  }

  #stopListening() {
    if (this.#subscribedEvents.size == 0) {
      this.#beforeStopRequestListener.stopListening();
      this.#cachedResourceListener.stopListening();
      this.#dataChannelListener.stopListening();
    }
  }

  #subscribeEvent(event) {
    switch (event) {
      case "network.beforeRequestSent":
        this.#startListening();
        this.#subscribedEvents.add("network.beforeRequestSent");
        break;
      case "network.responseStarted":
        this.#startListening();
        this.#subscribedEvents.add("network.responseStarted");
        break;
      case "network.responseCompleted":
        this.#startListening();
        this.#subscribedEvents.add("network.responseCompleted");
        break;
    }
  }

  #unsubscribeEvent(event) {
    switch (event) {
      case "network.beforeRequestSent":
        this.#subscribedEvents.delete("network.beforeRequestSent");
        break;
      case "network.responseStarted":
        this.#subscribedEvents.delete("network.responseStarted");
        break;
      case "network.responseCompleted":
        this.#subscribedEvents.delete("network.responseCompleted");
        break;
    }

    this.#stopListening();
  }

  /**
   * Internal commands
   */

  _applySessionData(params) {
    // TODO: Bug 1775231. Move this logic to a shared module or an abstract
    // class.
    const { category } = params;
    if (category === "event") {
      const filteredSessionData = params.sessionData.filter(item =>
        this.messageHandler.matchesContext(item.contextDescriptor)
      );
      for (const event of this.#subscribedEvents.values()) {
        const hasSessionItem = filteredSessionData.some(
          item => item.value === event
        );
        // If there are no session items for this context, we should unsubscribe from the event.
        if (!hasSessionItem) {
          this.#unsubscribeEvent(event);
        }
      }

      // Subscribe to all events, which have an item in SessionData.
      for (const { value } of filteredSessionData) {
        this.#subscribeEvent(value);
      }
    }
  }
}

export const network = NetworkModule;
PK