// Copyright 2019-2021 Tauri Programme within The Commons Conservancy
// SPDX-License-Identifier: Apache-2.0
// SPDX-License-Identifier: MIT

/** @ignore */

import { WindowLabel } from '../window'
import { invokeTauriCommand } from './tauri'

/**
 * Emits an event to the backend.
 *
 * @param event Event name
 * @param [windowLabel] The label of the window to which the event is sent, if null/undefined the event will be sent to all windows
 * @param [payload] Event payload
 * @returns
 */
async function emit(
  event: string,
  windowLabel: WindowLabel,
  payload?: string
): Promise<void> {
  await invokeTauriCommand({
    __tauriModule: 'Event',
    message: {
      cmd: 'emit',
      event,
      windowLabel,
      payload
    }
  })
}

export { emit }