/**
 * 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.
 *
 * @noformat
 * @oncall react_native
 * @generated SignedSource<<1ff95f1ad6bb911f3d2c2bc41d59bc1a>>
 *
 * This file was translated from Flow by scripts/generateTypeScriptDefinitions.js
 * Original file: packages/metro/src/lib/reporting.js
 * To regenerate, run:
 *   js1 build metro-ts-defs (internal) OR
 *   yarn run build-ts-defs (OSS) 
 */

import type {Terminal} from 'metro-core';
import type {HealthCheckResult, WatcherStatus} from 'metro-file-map';
import type {CustomResolverOptions} from 'metro-resolver';
import type {CustomTransformOptions} from 'metro-transform-worker';

export type BundleDetails = {
  bundleType: string;
  customResolverOptions: CustomResolverOptions;
  customTransformOptions: CustomTransformOptions;
  dev: boolean;
  entryFile: string;
  minify: boolean;
  platform: null | undefined | string;
};
/**
 * A tagged union of all the actions that may happen and we may want to
 * report to the tool user.
 */
export type ReportableEvent =
  | {port: number; hasReducedPerformance: boolean; type: 'initialize_started'}
  | {type: 'initialize_failed'; port: number; error: Error}
  | {type: 'initialize_done'; port: number}
  | {buildID: string; type: 'bundle_build_done'}
  | {buildID: string; type: 'bundle_build_failed'}
  | {type: 'bundle_save_log'; message: string}
  | {
      buildID: string;
      bundleDetails: BundleDetails;
      isPrefetch?: boolean;
      type: 'bundle_build_started';
    }
  | {error: Error; type: 'bundling_error'}
  | {type: 'dep_graph_loading'; hasReducedPerformance: boolean}
  | {type: 'dep_graph_loaded'}
  | {
      buildID: string;
      type: 'bundle_transform_progressed';
      transformedFileCount: number;
      totalFileCount: number;
    }
  | {type: 'cache_read_error'; error: Error}
  | {type: 'cache_write_error'; error: Error}
  | {type: 'transform_cache_reset'}
  | {type: 'worker_stdout_chunk'; chunk: string}
  | {type: 'worker_stderr_chunk'; chunk: string}
  | {type: 'hmr_client_error'; error: Error}
  | {
      type: 'client_log';
      level:
        | 'trace'
        | 'info'
        | 'warn'
        | 'log'
        | 'group'
        | 'groupCollapsed'
        | 'groupEnd'
        | 'debug';
      data: Array<unknown>;
    }
  | {type: 'resolver_warning'; message: string}
  | {type: 'server_listening'; port: number; address: string; family: string}
  | {type: 'transformer_load_started'}
  | {type: 'transformer_load_done'}
  | {type: 'transformer_load_failed'; error: Error}
  | {type: 'watcher_health_check_result'; result: HealthCheckResult}
  | {type: 'watcher_status'; status: WatcherStatus};
/**
 * Code across the application takes a reporter as an option and calls the
 * update whenever one of the ReportableEvent happens. Code does not directly
 * write to the standard output, because a build would be:
 *
 *   1. ad-hoc, embedded into another tool, in which case we do not want to
 *   pollute that tool's own output. The tool is free to present the
 *   warnings/progress we generate any way they want, by specifing a custom
 *   reporter.
 *   2. run as a background process from another tool, in which case we want
 *   to expose updates in a way that is easily machine-readable, for example
 *   a JSON-stream. We don't want to pollute it with textual messages.
 *
 * We centralize terminal reporting into a single place because we want the
 * output to be robust and consistent. The most common reporter is
 * TerminalReporter, that should be the only place in the application should
 * access the `terminal` module (nor the `console`).
 */
export type Reporter = {update(event: ReportableEvent): void};
/**
 * A standard way to log a warning to the terminal. This should not be called
 * from some arbitrary Metro logic, only from the reporters. Instead of
 * calling this, add a new type of ReportableEvent instead, and implement a
 * proper handler in the reporter(s).
 */
export declare function logWarning(
  terminal: Terminal,
  format: string,
  ...args: Array<unknown>
): void;
/**
 * Similar to `logWarning`, but for messages that require the user to act.
 */
export declare function logError(
  terminal: Terminal,
  format: string,
  ...args: Array<unknown>
): void;
/**
 * Similar to `logWarning`, but for informational messages.
 */
export declare function logInfo(
  terminal: Terminal,
  format: string,
  ...args: Array<unknown>
): void;
/**
 * A reporter that does nothing. Errors and warnings will be swallowed, that
 * is generally not what you want.
 */
export declare const nullReporter: {update(): void};
export declare type nullReporter = typeof nullReporter;