/**
 * Copyright 2018-present Facebook.
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 * @format
 */

import {remote} from 'electron';

export type ProcessConfig = {|
  disabledPlugins: Set<string>,
  pluginPaths: Array<string>,
  lastWindowPosition: ?{x: number, y: number, width: number, height: number},
  screenCapturePath: ?string,
  launcherMsg: ?string,
  updaterEnabled: boolean,
  // Controls whether to delegate to the launcher if present.
  launcherEnabled: boolean,
|};

let configObj = null;
export default function config(): ProcessConfig {
  if (configObj === null) {
    const json = JSON.parse(
      // $FlowFixMe: process.env not in type defs
      remote?.process.env.CONFIG || process.env.CONFIG || '{}',
    );
    configObj = {
      disabledPlugins: new Set(json.disabledPlugins || []),
      pluginPaths: json.pluginPaths || [],
      lastWindowPosition: json.lastWindowPosition,
      launcherMsg: json.launcherMsg,
      updaterEnabled:
        typeof json.updaterEnabled === 'boolean' ? json.updaterEnabled : true,
      screenCapturePath: json.screenCapturePath,
      launcherEnabled:
        typeof json.launcherEnabled === 'boolean' ? json.launcherEnabled : true,
    };
  }

  return configObj;
}

export function resetConfigForTesting() {
  configObj = null;
}