/*
 * SonarQube
 * Copyright (C) 2009-2023 SonarSource SA
 * mailto:info AT sonarsource DOT com
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 3 of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */
import { ParsableDate } from '../types/dates';

function pad(number: number) {
  if (number < 10) {
    return '0' + number.toString();
  }
  return number;
}

export function parseDate(rawDate: ParsableDate): Date {
  return new Date(rawDate);
}

export function toShortISO8601String(rawDate: ParsableDate): string {
  const date = parseDate(rawDate);
  return `${date.getFullYear()}-${pad(date.getMonth() + 1)}-${pad(date.getDate())}`;
}

export function toISO8601WithOffsetString(rawDate: ParsableDate): string {
  const date = parseDate(rawDate);
  // JS ISO Date implementation returns a datetime in UTC time (suffixed by "Z"). But the backend
  // expects a datetime with a timeoffset (e.g., +0200). UTC time is actually "+0000", so we convert
  // the string to this other format for the backend. The backend also doesn't expect milliseconds, so
  // we truncate that part, too.
  return date.toISOString().split('.')[0] + '+0000';
}

export function isValidDate(date: Date): boolean {
  return !isNaN(date.getTime());
}

export function now() {
  return new Date();
}