/**
 * @license
 * Copyright Google LLC All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.dev/license
 */
import { AbsoluteFsPath, PathSegment, ReadonlyFileSystem } from '@angular/compiler-cli/private/localize';
import { MessageId, ɵParsedTranslation } from '../../../index';
import { Diagnostics } from '../diagnostics';
import { OutputPathFn } from './output_path';
/**
 * An object that holds information to be used to translate files.
 */
export interface TranslationBundle {
    locale: string;
    translations: Record<MessageId, ɵParsedTranslation>;
    diagnostics?: Diagnostics;
}
/**
 * Implement this interface to provide a class that can handle translation for the given resource in
 * an appropriate manner.
 *
 * For example, source code files will need to be transformed if they contain `$localize` tagged
 * template strings, while most static assets will just need to be copied.
 */
export interface TranslationHandler {
    /**
     * Returns true if the given file can be translated by this handler.
     *
     * @param relativeFilePath A relative path from the sourceRoot to the resource file to handle.
     * @param contents The contents of the file to handle.
     */
    canTranslate(relativeFilePath: PathSegment | AbsoluteFsPath, contents: Uint8Array): boolean;
    /**
     * Translate the file at `relativeFilePath` containing `contents`, using the given `translations`,
     * and write the translated content to the path computed by calling `outputPathFn()`.
     *
     * @param diagnostics An object for collecting translation diagnostic messages.
     * @param sourceRoot An absolute path to the root of the files being translated.
     * @param relativeFilePath A relative path from the sourceRoot to the file to translate.
     * @param contents The contents of the file to translate.
     * @param outputPathFn A function that returns an absolute path where the output file should be
     * written.
     * @param translations A collection of translations to apply to this file.
     * @param sourceLocale The locale of the original application source. If provided then an
     * additional copy of the application is created under this locale just with the `$localize` calls
     * stripped out.
     */
    translate(diagnostics: Diagnostics, sourceRoot: AbsoluteFsPath, relativeFilePath: PathSegment | AbsoluteFsPath, contents: Uint8Array, outputPathFn: OutputPathFn, translations: TranslationBundle[], sourceLocale?: string): void;
}
/**
 * Translate each file (e.g. source file or static asset) using the given `TranslationHandler`s.
 * The file will be translated by the first handler that returns true for `canTranslate()`.
 */
export declare class Translator {
    private fs;
    private resourceHandlers;
    private diagnostics;
    constructor(fs: ReadonlyFileSystem, resourceHandlers: TranslationHandler[], diagnostics: Diagnostics);
    translateFiles(inputPaths: PathSegment[], rootPath: AbsoluteFsPath, outputPathFn: OutputPathFn, translations: TranslationBundle[], sourceLocale?: string): void;
}