import Debug from 'debug';

import { InfoPlist } from './IosConfig.types';
import { ConfigPlugin } from '../Plugin.types';
import { withInfoPlist } from '../plugins/ios-plugins';

const debug = Debug('expo:config-plugins:ios:permissions');

export function applyPermissions<Defaults extends Record<string, string> = Record<string, string>>(
  defaults: Defaults,
  permissions: Partial<Record<keyof Defaults, string | false>>,
  infoPlist: InfoPlist
): InfoPlist {
  const entries = Object.entries(defaults);
  if (entries.length === 0) {
    debug(`No defaults provided: ${JSON.stringify(permissions)}`);
  }
  for (const [permission, description] of entries) {
    if (permissions[permission] === false) {
      debug(`Deleting "${permission}"`);
      delete infoPlist[permission];
    } else {
      infoPlist[permission] = permissions[permission] || infoPlist[permission] || description;
      debug(`Setting "${permission}" to "${infoPlist[permission]}"`);
    }
  }
  return infoPlist;
}

/**
 * Helper method for creating mods to apply default permissions.
 *
 * @param action
 */
export function createPermissionsPlugin<
  Defaults extends Record<string, string> = Record<string, string>,
>(defaults: Defaults, name?: string) {
  const withIosPermissions: ConfigPlugin<Record<keyof Defaults, string | undefined | false>> = (
    config,
    permissions
  ) =>
    withInfoPlist(config, async (config) => {
      config.modResults = applyPermissions(defaults, permissions, config.modResults);
      return config;
    });
  if (name) {
    Object.defineProperty(withIosPermissions, 'name', {
      value: name,
    });
  }
  return withIosPermissions;
}