import { test, expect } from '@playwright/test';
import AxeBuilder from '@axe-core/playwright';
import { createEmptyDocument } from './helpers/upload-empty-document.js';

async function createBlock(
	request: Parameters<typeof createEmptyDocument>[0],
	docId: string
): Promise<void> {
	const res = await request.post(`/api/documents/${docId}/transcription-blocks`, {
		data: {
			pageNumber: 1,
			x: 0.1,
			y: 0.1,
			width: 0.3,
			height: 0.1,
			text: 'Liebe Mutter,',
			label: null
		}
	});
	if (!res.ok()) throw new Error(`Create block failed: ${res.status()}`);
}

function buildAxe(page: Parameters<typeof AxeBuilder>[0]['page']) {
	return new AxeBuilder({ page }).withTags(['wcag2a', 'wcag2aa']);
}

test.describe('Transcribe coach — empty state', () => {
	let docId: string;

	test.beforeAll(async ({ request }) => {
		docId = await createEmptyDocument(request);
	});

	test.afterAll(async ({ request }) => {
		await request.delete(`/api/documents/${docId}`);
	});

	test('shows coach card (title, preamble, three step bodies, animation region)', async ({
		page
	}) => {
		await page.goto(`/documents/${docId}`);
		await page.getByRole('button', { name: 'Transkribieren' }).click();

		await expect(page.getByRole('heading', { level: 2, name: /Erste Transkription/ })).toBeVisible({
			timeout: 5000
		});
		await expect(page.getByText(/Kurrent-Erkenner lernt noch/)).toBeVisible();
		await expect(page.getByText(/Rahmen ziehen/)).toBeVisible();
		await expect(page.getByText(/Text eingeben/)).toBeVisible();
		await expect(page.getByText(/Speichert automatisch/)).toBeVisible();
		await expect(page.getByRole('img', { name: /Rahmen ziehen|Animation/i })).toBeVisible();
	});

	test('training footer is NOT visible on empty doc', async ({ page }) => {
		await page.goto(`/documents/${docId}`);
		await page.getByRole('button', { name: 'Transkribieren' }).click();
		await expect(page.getByText('Für Training vormerken')).not.toBeVisible({ timeout: 3000 });
	});

	test('axe: panel empty state — light theme — no WCAG 2.1 AA violations', async ({ page }) => {
		await page.goto(`/documents/${docId}`);
		await page.getByRole('button', { name: 'Transkribieren' }).click();
		await expect(page.getByRole('heading', { level: 2, name: /Erste Transkription/ })).toBeVisible({
			timeout: 5000
		});

		const a11y = await buildAxe(page).analyze();
		expect(a11y.violations, JSON.stringify(a11y.violations, null, 2)).toHaveLength(0);
	});

	test('axe: panel empty state — dark theme — no WCAG 2.1 AA violations', async ({ page }) => {
		await page.goto(`/documents/${docId}`);
		// Toggle dark theme
		await page.getByRole('button', { name: /dark mode/i }).click();
		await page.getByRole('button', { name: 'Transkribieren' }).click();
		await expect(page.getByRole('heading', { level: 2, name: /Erste Transkription/ })).toBeVisible({
			timeout: 5000
		});

		const a11y = await buildAxe(page).analyze();
		expect(a11y.violations, JSON.stringify(a11y.violations, null, 2)).toHaveLength(0);
	});
});

test.describe('Transcribe coach — with blocks', () => {
	let docId: string;

	test.beforeAll(async ({ request }) => {
		docId = await createEmptyDocument(request);
		await createBlock(request, docId);
	});

	test.afterAll(async ({ request }) => {
		await request.delete(`/api/documents/${docId}`);
	});

	test('training footer IS visible when at least one block exists', async ({ page }) => {
		await page.goto(`/documents/${docId}`);
		await page.getByRole('button', { name: 'Transkribieren' }).click();
		// Wait for blocks to finish loading — block count confirms mode settled to 'read'
		await expect(page.getByText(/1 Abschnitt/)).toBeVisible({ timeout: 5000 });
		await page.locator('[data-testid="mode-edit"]').click();
		await expect(page.getByText('Für Training vormerken')).toBeVisible({ timeout: 5000 });
	});
});