import { describe, it, expect, afterEach } from 'vitest';
import { cleanup, render } from 'vitest-browser-svelte';
import { page } from 'vitest/browser';
import LoginPage from './+page.svelte';

afterEach(cleanup);

describe('login page', () => {
	it('renders the login form by default', async () => {
		render(LoginPage, { props: { data: { registered: false }, form: undefined } });

		await expect.element(page.getByRole('heading', { name: /^anmelden$/i })).toBeVisible();
		await expect.element(page.getByLabelText(/e-mail-adresse/i)).toBeVisible();
		await expect.element(page.getByLabelText(/passwort/i)).toBeVisible();
		await expect.element(page.getByRole('button', { name: /^anmelden$/i })).toBeVisible();
	});

	it('shows the registered-success banner when data.registered is true', async () => {
		render(LoginPage, { props: { data: { registered: true }, form: undefined } });

		await expect
			.element(page.getByText('Dein Konto wurde erfolgreich erstellt. Melde dich jetzt an.'))
			.toBeVisible();
	});

	it('hides the registered-success banner when data.registered is false', async () => {
		render(LoginPage, { props: { data: { registered: false }, form: undefined } });

		await expect.element(page.getByRole('status')).not.toBeInTheDocument();
	});

	it('shows the form error when form.error is set', async () => {
		render(LoginPage, {
			props: { data: { registered: false }, form: { error: 'Ungültige Anmeldedaten' } }
		});

		await expect.element(page.getByText('Ungültige Anmeldedaten')).toBeVisible();
	});

	it('declares POST as the form method and routes to ?/login', async () => {
		render(LoginPage, { props: { data: { registered: false }, form: undefined } });

		const form = document.querySelector('form');
		expect(form?.getAttribute('method')).toBe('POST');
		expect(form?.getAttribute('action')).toBe('?/login');
	});

	it('exposes the email input as type=email and required', async () => {
		render(LoginPage, { props: { data: { registered: false }, form: undefined } });

		const email = document.querySelector('input[name="email"]') as HTMLInputElement;
		expect(email.type).toBe('email');
		expect(email.required).toBe(true);
		expect(email.autocomplete).toBe('email');
	});

	it('exposes the password input as type=password and required', async () => {
		render(LoginPage, { props: { data: { registered: false }, form: undefined } });

		const pwd = document.querySelector('input[name="password"]') as HTMLInputElement;
		expect(pwd.type).toBe('password');
		expect(pwd.required).toBe(true);
		expect(pwd.autocomplete).toBe('current-password');
	});

	it('renders the forgot-password link', async () => {
		render(LoginPage, { props: { data: { registered: false }, form: undefined } });

		await expect
			.element(page.getByRole('link', { name: /passwort vergessen/i }))
			.toHaveAttribute('href', '/forgot-password');
	});

	it('shows rate-limit alert with clock icon when rateLimited is true', async () => {
		render(LoginPage, {
			props: {
				data: { registered: false },
				form: { error: 'Zu viele Anmeldeversuche.', rateLimited: true }
			}
		});

		await expect.element(page.getByRole('alert')).toBeVisible();
		await expect.element(page.getByText('Zu viele Anmeldeversuche.')).toBeVisible();
	});
});