import { ConfigPlugin, createRunOncePlugin } from 'expo/config-plugins';

const pkg = require('expo-tracking-transparency/package.json');

export const DEFAULT_NSUserTrackingUsageDescription =
  'Allow this app to collect app-related data that can be used for tracking you or your device.';

const withTrackingTransparency: ConfigPlugin<
  {
    /**
     * Sets the iOS `NSUserTrackingUsageDescription` permission message in `Info.plist`. Omitting a
     * description will result in using the default permission message.
     * @default 'Allow this app to collect app-related data that can be used for tracking you or your
     * device.'
     */
    userTrackingPermission?: string;
  } | void
> = (config, props) => {
  config = withUserTrackingPermission(config, props);
  return config;
};

export const withUserTrackingPermission: ConfigPlugin<
  {
    userTrackingPermission?: string;
  } | void
> = (config, { userTrackingPermission } = {}) => {
  if (!config.ios) config.ios = {};
  if (!config.ios.infoPlist) config.ios.infoPlist = {};
  config.ios.infoPlist.NSUserTrackingUsageDescription =
    userTrackingPermission ||
    config.ios.infoPlist.NSUserTrackingUsageDescription ||
    DEFAULT_NSUserTrackingUsageDescription;

  return config;
};

export default createRunOncePlugin(withTrackingTransparency, pkg.name, pkg.version);