import { BridgeConfiguration } from '../../types/types';
import FeatureFlagManager from './featureFlagManager';
import { getSupportedFeatureFlags } from './helpers';
import { manageFeatureToggles } from './manageFeatureToggles';

/**
 * Handles incoming event data containing feature flags.
 * @param event - The event object containing feature flags.
 * Expected structure: { featureFlags: FeatureFlagList }.
 */
export const handleFeatureFlags = (event: string): void => {
  const bridgeConfiguration: BridgeConfiguration = JSON.parse(event);
  // NOTE: During development, you might need to test the behavior of the feature using remote feature flags.
  // Comment out the lines below to update featureFlags with remote data.
  if (__DEV__) {
    manageFeatureToggles();
    return;
  }

  const { feature_flags } = bridgeConfiguration;

  // Retrieve supported feature flags from the event data
  const supportedFeatureFlags =
    feature_flags && getSupportedFeatureFlags(feature_flags);

  if (!supportedFeatureFlags) {
    return;
  }

  // Apply supported feature flags to the FeatureFlagManager
  supportedFeatureFlags.forEach((featureFlag: { name: any; enabled: any }) => {
    const { name, enabled } = featureFlag;
    const featureFlagsObject = FeatureFlagManager.featureFlags;

    if (
      typeof featureFlagsObject === 'object' &&
      Object.prototype.hasOwnProperty.call(featureFlagsObject, name)
    ) {
      FeatureFlagManager.setFeatureFlag(name, enabled);
    }
  });

  // Function responsible for managing feature toggles based on remote feature flags.
  // This function initializes or restores necessary functionality after fetching the remote feature flags.
  manageFeatureToggles();
};