/**
 * Copyright (c) Meta Platforms, Inc. and affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 * @format
 * @oncall react_native
 */

import type {TransformResultWithSource} from './DeltaBundler';
import type {TransformOptions} from './DeltaBundler/Worker';
import type DependencyGraph from './node-haste/DependencyGraph';
import type {EventEmitter} from 'events';
import type {ConfigT} from 'metro-config';

export interface BundlerOptions {
  readonly hasReducedPerformance?: boolean;
  readonly watch?: boolean;
}

export default class Bundler {
  constructor(config: ConfigT, options?: BundlerOptions);

  getWatcher(): EventEmitter;

  end(): Promise<void>;

  getDependencyGraph(): Promise<DependencyGraph>;

  transformFile(
    filePath: string,
    transformOptions: TransformOptions,
    /** Optionally provide the file contents, this can be used to provide virtual contents for a file. */
    fileBuffer?: Buffer,
  ): Promise<TransformResultWithSource<void>>;

  ready(): Promise<void>;
}