/*---------------------------------------------------------------------------------------------
 *  Copyright (c) Microsoft Corporation. All rights reserved.
 *  Licensed under the MIT License. See License.txt in the project root for license information.
 *--------------------------------------------------------------------------------------------*/

import { strictEqual } from 'assert';
import { fromNow, fromNowByDay, getDurationString, safeIntl } from '../../common/date.js';
import { ensureNoDisposablesAreLeakedInTestSuite } from './utils.js';
import { LANGUAGE_DEFAULT } from '../../common/platform.js';

suite('Date', () => {
	ensureNoDisposablesAreLeakedInTestSuite();

	suite('fromNow', () => {
		test('appendAgoLabel', () => {
			strictEqual(fromNow(Date.now() - 35000), '35 secs');
			strictEqual(fromNow(Date.now() - 35000, false), '35 secs');
			strictEqual(fromNow(Date.now() - 35000, true), '35 secs ago');
		});
		test('useFullTimeWords', () => {
			strictEqual(fromNow(Date.now() - 35000), '35 secs');
			strictEqual(fromNow(Date.now() - 35000, undefined, false), '35 secs');
			strictEqual(fromNow(Date.now() - 35000, undefined, true), '35 seconds');
		});
		test('disallowNow', () => {
			strictEqual(fromNow(Date.now() - 5000), 'now');
			strictEqual(fromNow(Date.now() - 5000, undefined, undefined, false), 'now');
			strictEqual(fromNow(Date.now() - 5000, undefined, undefined, true), '5 secs');
		});
	});

	suite('fromNowByDay', () => {
		test('today', () => {
			const now = new Date();
			strictEqual(fromNowByDay(now), 'Today');
		});
		test('yesterday', () => {
			const yesterday = new Date();
			yesterday.setDate(yesterday.getDate() - 1);
			yesterday.setHours(12);
			strictEqual(fromNowByDay(yesterday), 'Yesterday');
		});
		test('daysAgo', () => {
			const daysAgo = new Date();
			daysAgo.setDate(daysAgo.getDate() - 5);
			daysAgo.setHours(daysAgo.getHours() - 2); // 2 hours further to avoid DST issues
			strictEqual(fromNowByDay(daysAgo, true), '5 days ago');
		});
	});

	suite('getDurationString', () => {
		test('basic', () => {
			strictEqual(getDurationString(1), '1ms');
			strictEqual(getDurationString(999), '999ms');
			strictEqual(getDurationString(1000), '1s');
			strictEqual(getDurationString(1000 * 60 - 1), '59.999s');
			strictEqual(getDurationString(1000 * 60), '1 mins');
			strictEqual(getDurationString(1000 * 60 * 60 - 1), '60 mins');
			strictEqual(getDurationString(1000 * 60 * 60), '1 hrs');
			strictEqual(getDurationString(1000 * 60 * 60 * 24 - 1), '24 hrs');
			strictEqual(getDurationString(1000 * 60 * 60 * 24), '1 days');
		});
		test('useFullTimeWords', () => {
			strictEqual(getDurationString(1, true), '1 milliseconds');
			strictEqual(getDurationString(999, true), '999 milliseconds');
			strictEqual(getDurationString(1000, true), '1 seconds');
			strictEqual(getDurationString(1000 * 60 - 1, true), '59.999 seconds');
			strictEqual(getDurationString(1000 * 60, true), '1 minutes');
			strictEqual(getDurationString(1000 * 60 * 60 - 1, true), '60 minutes');
			strictEqual(getDurationString(1000 * 60 * 60, true), '1 hours');
			strictEqual(getDurationString(1000 * 60 * 60 * 24 - 1, true), '24 hours');
			strictEqual(getDurationString(1000 * 60 * 60 * 24, true), '1 days');
		});

		suite('safeIntl', () => {
			test('Collator fallback', () => {
				const collator = safeIntl.Collator('en_IT').value;
				const comparison = collator.compare('a', 'b');
				strictEqual(comparison, -1);
			});

			test('Locale fallback', () => {
				const locale = safeIntl.Locale('en_IT').value;
				strictEqual(locale.baseName, LANGUAGE_DEFAULT);
			});
		});
	});
});
