import path from "path";
import os from "os";

/**
 * Manages user settings and storage locations.
 */
export class User {

  private static customStoragePath?: string;
  private static storageAccessed = false;

  static configPath(): string {
    return path.join(User.storagePath(), "config.json");
  }

  static persistPath(): string {
    return path.join(User.storagePath(), "persist"); // hap-nodejs data is stored here
  }

  static cachedAccessoryPath(): string {
    return path.join(User.storagePath(), "accessories");
  }

  static storagePath(): string {
    User.storageAccessed = true;

    return User.customStoragePath ? User.customStoragePath : path.join(os.homedir(), ".homebridge");
  }

  public static setStoragePath(...storagePathSegments: string[]): void {
    if (User.storageAccessed) {
      throw new Error("Storage path was already accessed and cannot be changed anymore. Try initializing your custom storage path earlier!");
    }

    User.customStoragePath = path.resolve(...storagePathSegments);
  }

}