/**
 * @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.io/license
 */
import { Pipe } from '@angular/core';
import { getPluralCategory, NgLocalization } from '../i18n/localization';
import { invalidPipeArgumentError } from './invalid_pipe_argument_error';
import * as i0 from "@angular/core";
import * as i1 from "../i18n/localization";
const _INTERPOLATION_REGEXP = /#/g;
/**
 * @ngModule CommonModule
 * @description
 *
 * Maps a value to a string that pluralizes the value according to locale rules.
 *
 * @usageNotes
 *
 * ### Example
 *
 * {@example common/pipes/ts/i18n_pipe.ts region='I18nPluralPipeComponent'}
 *
 * @publicApi
 */
export class I18nPluralPipe {
    constructor(_localization) {
        this._localization = _localization;
    }
    /**
     * @param value the number to be formatted
     * @param pluralMap an object that mimics the ICU format, see
     * https://unicode-org.github.io/icu/userguide/format_parse/messages/.
     * @param locale a `string` defining the locale to use (uses the current {@link LOCALE_ID} by
     * default).
     */
    transform(value, pluralMap, locale) {
        if (value == null)
            return '';
        if (typeof pluralMap !== 'object' || pluralMap === null) {
            throw invalidPipeArgumentError(I18nPluralPipe, pluralMap);
        }
        const key = getPluralCategory(value, Object.keys(pluralMap), this._localization, locale);
        return pluralMap[key].replace(_INTERPOLATION_REGEXP, value.toString());
    }
}
I18nPluralPipe.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "14.3.0", ngImport: i0, type: I18nPluralPipe, deps: [{ token: i1.NgLocalization }], target: i0.ɵɵFactoryTarget.Pipe });
I18nPluralPipe.ɵpipe = i0.ɵɵngDeclarePipe({ minVersion: "14.0.0", version: "14.3.0", ngImport: i0, type: I18nPluralPipe, isStandalone: true, name: "i18nPlural" });
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "14.3.0", ngImport: i0, type: I18nPluralPipe, decorators: [{
            type: Pipe,
            args: [{
                    name: 'i18nPlural',
                    pure: true,
                    standalone: true,
                }]
        }], ctorParameters: function () { return [{ type: i1.NgLocalization }]; } });
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