import { each, compact, last, get } from 'lodash';

RNCallKeep.addEventListener(
  'didLoadWithEvents',
  this.onDidLoadWithNativeEvents
);

onDidLoadWithNativeEvents(events) {
  const validEvents = compact(events);
  let callDataToAdd = null;
  let callDataToAnswer = null;
  let callDataToReject = null;
  let callDataToInitiateCall = null;
  each(compact(validEvents), event => {
    const { name, data } = event;
    if (name === 'RNCallKeepDidDisplayIncomingCall') {
      callDataToAdd = data;
      callDataToAnswer = null;
      callDataToReject = null;
    }
    if (name === 'RNCallKeepPerformAnswerCallAction') {
      callDataToReject = null;
      callDataToAnswer = data;
    }
    if (name === 'RNCallKeepPerformEndCallAction') {
      callDataToAnswer = null;
      callDataToReject = data;
    }
  });

  const lastEventName = get(last(validEvents), 'name');
  if (lastEventName === 'RNCallKeepDidReceiveStartCallAction') {
    callDataToInitiateCall = get(last(validEvents), 'data');
    callDataToAnswer = null;
    if (!callDataToReject) {
      callDataToAdd = null;
    }
  }

  if (callDataToAdd) {
    this.onDisplayIncomingCall(callDataToAdd);
    if (callDataToReject) {
      this.onEndCall(callDataToReject);
    }
    if (callDataToAnswer) {
      this.onAnswerCall(callDataToAnswer);
    }
  }
  if (callDataToInitiateCall) {
    this.onStartCall(callDataToAnswer);
  }
}