TypeScript types

[josmithua]

I made some types for this library. Not sure if they're 100% correct but hopefully they'll be useful.

declare module 'react-native-zebra-bluetooth-printer' {
  export type ScanResult = {
    found: string;
    paired: string;
  };

  export type BluetoothDevice = {
    address: string;
    name: string;
    state: 'not-connected' | 'connected';
  };

  export type PairedBluetoothDevice = {
    address: string;
    class: number;
    name: string;
    type: 'paired';
  };

  /**
   * Checks the status of the bluetooth service of the device.
   * @returns true if already enabled, false if not enabled.
   */
  export function isEnabledBluetooth(): Promise<boolean>;

  /**
   * Android: Requests for bluetooth on/off permission on the android device.
   *
   * iOS: Resolves to nil.
   * */
  export function enableBluetooth(): Promise<undefined>;

  /**
   * Android: Disables bluetooth if bluetooth is switched on.
   *
   * iOS: Resolves to nil.
   */
  export function disableBluetooth(): Promise<undefined>;

  /**
   * Scans for available nearby bluetooth devices for a specific period of time.
   * @returns Android: JSON string; iOS: ScanResult object
   */
  export function scanDevices(): Promise<ScanResult | string>;

  /**
   * Android: Returns already paired devices.
   *
   * iOS: Resolves to nil.
   */
  export function pairedDevices(): Promise<PairedBluetoothDevice[]>;

  /**
   * Connects to a device using the given address
   * @param address The address of the device
   */
  export function connectDevice(address: string): Promise<undefined>;

  /**
   * Android only: Unpairs/disconnects a paired device.
   * @param address The address of the device
   */
  export function unpairDevice(address: string): Promise<undefined>;

  /**
   * iOS only: Sends the zpl to the paired printer
   * @param zpl The zpl to send to the printer
   */
  export function print(zpl: string): Promise<boolean>;

  /**
   * Android only: Sends the zpl to the device with the given address
   * @param address The address of the printer
   * @param zpl The zpl to send to the printer
   */
  export function print(address: string, zpl: string): Promise<boolean>;
}