import { padNumber, toInteger, isNumber } from '../util/util';
import { Injectable } from '@angular/core';
import * as i0 from "@angular/core";
export function NGB_DATEPICKER_PARSER_FORMATTER_FACTORY() {
    return new NgbDateISOParserFormatter();
}
/**
 * An abstract service for parsing and formatting dates for the
 * [`NgbInputDatepicker`](#/components/datepicker/api#NgbInputDatepicker) directive.
 * Converts between the internal `NgbDateStruct` model presentation and a `string` that is displayed in the
 * input element.
 *
 * When user types something in the input this service attempts to parse it into a `NgbDateStruct` object.
 * And vice versa, when users selects a date in the calendar with the mouse, it must be displayed as a `string`
 * in the input.
 *
 * Default implementation uses the ISO 8601 format, but you can provide another implementation via DI
 * to use an alternative string format or a custom parsing logic.
 *
 * See the [date format overview](#/components/datepicker/overview#date-model) for more details.
 */
export class NgbDateParserFormatter {
}
NgbDateParserFormatter.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "14.2.6", ngImport: i0, type: NgbDateParserFormatter, deps: [], target: i0.ɵɵFactoryTarget.Injectable });
NgbDateParserFormatter.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: "12.0.0", version: "14.2.6", ngImport: i0, type: NgbDateParserFormatter, providedIn: 'root', useFactory: NGB_DATEPICKER_PARSER_FORMATTER_FACTORY });
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "14.2.6", ngImport: i0, type: NgbDateParserFormatter, decorators: [{
            type: Injectable,
            args: [{ providedIn: 'root', useFactory: NGB_DATEPICKER_PARSER_FORMATTER_FACTORY }]
        }] });
export class NgbDateISOParserFormatter extends NgbDateParserFormatter {
    parse(value) {
        if (value != null) {
            const dateParts = value.trim().split('-');
            if (dateParts.length === 1 && isNumber(dateParts[0])) {
                return { year: toInteger(dateParts[0]), month: null, day: null };
            }
            else if (dateParts.length === 2 && isNumber(dateParts[0]) && isNumber(dateParts[1])) {
                return { year: toInteger(dateParts[0]), month: toInteger(dateParts[1]), day: null };
            }
            else if (dateParts.length === 3 && isNumber(dateParts[0]) && isNumber(dateParts[1]) && isNumber(dateParts[2])) {
                return { year: toInteger(dateParts[0]), month: toInteger(dateParts[1]), day: toInteger(dateParts[2]) };
            }
        }
        return null;
    }
    format(date) {
        return date
            ? `${date.year}-${isNumber(date.month) ? padNumber(date.month) : ''}-${isNumber(date.day) ? padNumber(date.day) : ''}`
            : '';
    }
}
NgbDateISOParserFormatter.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "14.2.6", ngImport: i0, type: NgbDateISOParserFormatter, deps: null, target: i0.ɵɵFactoryTarget.Injectable });
NgbDateISOParserFormatter.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: "12.0.0", version: "14.2.6", ngImport: i0, type: NgbDateISOParserFormatter });
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "14.2.6", ngImport: i0, type: NgbDateISOParserFormatter, decorators: [{
            type: Injectable
        }] });
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