import { describe, expect, it, vi } from 'vitest';
import type { Cookies } from '@sveltejs/kit';
import {
	AUTH_COOKIE_NAME,
	SESSION_MAX_AGE_SECONDS,
	createSession,
	isValidSession,
	renewSession,
	verifyPassword,
} from './auth';

const TEST_PASSWORD = vi.hoisted(() => {
	return 'family-password-5f2c1d7e';
});
const NOW = Temporal.Instant.fromEpochMilliseconds(1_800_000_000_000);

vi.mock('$env/dynamic/private', () => ({
	env: { AUTH_PASSWORD: TEST_PASSWORD },
}));

describe('authentication', () => {
	it('verifies the configured shared password', () => {
		expect(verifyPassword(TEST_PASSWORD)).toBe(true);
		expect(verifyPassword('wrong-password')).toBe(false);
	});

	it('accepts a signed session until its expiry', () => {
		const session = createSession(NOW);

		const almostExpired = NOW.add({
			milliseconds: SESSION_MAX_AGE_SECONDS * 1000 - 1,
		});
		expect(isValidSession(session, almostExpired)).toBe(true);
		const expired = NOW.add({ milliseconds: SESSION_MAX_AGE_SECONDS * 1000 });
		expect(isValidSession(session, expired)).toBe(false);
		expect(isValidSession(`${session}x`, NOW)).toBe(false);
	});

	it('renews a valid session with the requested cookie settings', () => {
		const session = createSession(NOW);
		const cookies = {
			get: vi.fn(() => session),
			set: vi.fn(),
		} as unknown as Cookies;

		expect(renewSession(cookies, true, NOW.add({ milliseconds: 1_000 }))).toBe(
			true,
		);
		expect(cookies.set).toHaveBeenCalledWith(
			AUTH_COOKIE_NAME,
			expect.any(String),
			expect.objectContaining({
				path: '/',
				httpOnly: true,
				secure: true,
				sameSite: 'lax',
				maxAge: SESSION_MAX_AGE_SECONDS,
			}),
		);
	});
});