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

afterEach(cleanup);

const sender = { id: 's-1', firstName: 'Anna', lastName: 'Schmidt', displayName: 'Anna Schmidt' };
const r1 = { id: 'r-1', firstName: 'Bert', lastName: 'Meier', displayName: 'Bert Meier' };
const r2 = { id: 'r-2', firstName: 'Clara', lastName: 'Weiss', displayName: 'Clara Weiss' };
const r3 = { id: 'r-3', firstName: 'Doris', lastName: 'Lang', displayName: 'Doris Lang' };

describe('PersonChipRow', () => {
	it('renders only the sender when there are no receivers', async () => {
		render(PersonChipRow, {
			props: { sender, receivers: [], abbreviated: false, extraCount: 0 }
		});

		await expect.element(page.getByText('Anna Schmidt')).toBeVisible();
		await expect.element(page.getByRole('img', { name: '' })).not.toBeInTheDocument();
	});

	it('renders the arrow image when sender and at least one receiver are present', async () => {
		render(PersonChipRow, {
			props: { sender, receivers: [r1], abbreviated: false, extraCount: 0 }
		});

		const arrow = document.querySelector('img[aria-hidden="true"]');
		expect(arrow).not.toBeNull();
	});

	it('renders both sender and visible receivers with abbreviated=false', async () => {
		render(PersonChipRow, {
			props: { sender, receivers: [r1, r2], abbreviated: false, extraCount: 0 }
		});

		await expect.element(page.getByText('Anna Schmidt')).toBeVisible();
		await expect.element(page.getByText('Bert Meier')).toBeVisible();
	});

	it('uses abbreviated names when abbreviated=true', async () => {
		render(PersonChipRow, {
			props: { sender, receivers: [r1], abbreviated: true, extraCount: 0 }
		});

		await expect.element(page.getByText('A. Schmidt')).toBeVisible();
		await expect.element(page.getByText('B. Meier')).toBeVisible();
	});

	it('limits the visible receivers to the first two', async () => {
		render(PersonChipRow, {
			props: { sender, receivers: [r1, r2, r3], abbreviated: false, extraCount: 1 }
		});

		await expect.element(page.getByText('Bert Meier')).toBeVisible();
		await expect.element(page.getByText('Clara Weiss')).toBeVisible();
		await expect.element(page.getByText('Doris Lang')).not.toBeInTheDocument();
	});

	it('renders the OverflowPillDisplay when extraCount > 0', async () => {
		render(PersonChipRow, {
			props: { sender, receivers: [r1, r2, r3], abbreviated: false, extraCount: 1 }
		});

		await expect.element(page.getByText(/\+1/)).toBeVisible();
	});

	it('omits the OverflowPillDisplay when extraCount is 0', async () => {
		render(PersonChipRow, {
			props: { sender, receivers: [r1], abbreviated: false, extraCount: 0 }
		});

		await expect.element(page.getByText(/\+\d/)).not.toBeInTheDocument();
	});

	it('renders only receivers when there is no sender', async () => {
		render(PersonChipRow, {
			props: { sender: null, receivers: [r1], abbreviated: false, extraCount: 0 }
		});

		await expect.element(page.getByText('Bert Meier')).toBeVisible();
		const arrow = document.querySelector('img[aria-hidden="true"]');
		expect(arrow).toBeNull();
	});
});