@assistant-ui/react/dist/api/subscribable/NestedSubscriptionSubject.js

Typescript/React library for AI Chat

import { BaseSubject } from "./BaseSubject";
class NestedSubscriptionSubject extends BaseSubject {
  constructor(binding) {
    super();
    this.binding = binding;
  }
  get path() {
    return this.binding.path;
  }
  getState() {
    return this.binding.getState();
  }
  outerSubscribe(callback) {
    return this.binding.subscribe(callback);
  }
  _connect() {
    const callback = () => {
      this.notifySubscribers();
    };
    let lastState = this.binding.getState();
    let innerUnsubscribe = lastState?.subscribe(callback);
    const onRuntimeUpdate = () => {
      const newState = this.binding.getState();
      if (newState === lastState) return;
      lastState = newState;
      innerUnsubscribe?.();
      innerUnsubscribe = this.binding.getState()?.subscribe(callback);
      callback();
    };
    const outerUnsubscribe = this.outerSubscribe(onRuntimeUpdate);
    return () => {
      outerUnsubscribe?.();
      innerUnsubscribe?.();
    };
  }
}
export {
  NestedSubscriptionSubject
};
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