import { expect, test } from '@playwright/test';
import {
	appendZipInput,
	createZip,
	dropFiles,
	expectPdfDownload,
	newZipButton,
	replaceThroughDialog,
	replaceZipInput,
	settingsButton,
	trackPageErrors,
	waitForLoadedWorkspace,
	workspaceStatus,
	zipDropzone
} from './helpers';

test('beA reports an invalid ZIP and lets the user remove it', async ({ page }) => {
	const pageErrors = trackPageErrors(page);

	await page.goto('/tools/bea');
	await dropFiles(page, zipDropzone(page), [
		{
			name: 'defektes-archiv.zip',
			mimeType: 'application/zip',
			buffer: Buffer.from('kein gueltiges ZIP-Archiv')
		}
	]);

	await expect(page.getByText('defektes-archiv.zip', { exact: true })).toBeVisible();
	await expect(page.getByText('Konnte nicht geöffnet werden.')).toBeVisible();
	await expect(page.getByRole('status')).toContainText('1 fehlgeschlagen');
	await expect(page.getByRole('button', { name: 'Erneut versuchen' })).toBeVisible();

	await page.getByRole('button', { name: 'Entfernen' }).click();
	await expect(zipDropzone(page)).toBeVisible();
	expect(pageErrors).toEqual([]);
});

test('cancelling the replacement confirmation keeps the current archive', async ({ page }) => {
	const pageErrors = trackPageErrors(page);
	const zipA = await createZip('archiv-a');
	const zipB = await createZip('archiv-b');

	await page.goto('/tools/bea');
	await dropFiles(page, zipDropzone(page), [
		{ name: 'archiv-a.zip', mimeType: 'application/zip', buffer: zipA }
	]);
	await waitForLoadedWorkspace(page, /1 ZIP · 1 Archiv geöffnet/);

	await replaceThroughDialog(page, zipB, false);

	await expect(workspaceStatus(page, /1 ZIP · 1 Archiv geöffnet/)).toBeVisible();
	await expect(page.getByText('2 ZIPs')).toHaveCount(0);
	expect(pageErrors).toEqual([]);
});

test('confirming the replacement opens only the new ZIP and drops stale results', async ({
	page
}) => {
	const pageErrors = trackPageErrors(page);
	const zipA = await createZip('archiv-a', 3);
	const zipB = await createZip('archiv-b');

	await page.goto('/tools/bea');
	await dropFiles(page, zipDropzone(page), [
		{ name: 'archiv-a.zip', mimeType: 'application/zip', buffer: zipA }
	]);
	// Replace while the first ZIP may still be extracting; generation guarding
	// must ensure no late result from archiv-a reappears.
	await replaceThroughDialog(page, zipB, true);

	await waitForLoadedWorkspace(page, /1 ZIP · 1 Archiv geöffnet/);
	await expect(page.getByText('1 lose Datei')).toHaveCount(1);
	expect(pageErrors).toEqual([]);
});

test('cancelling the system file picker leaves the workspace unchanged', async ({ page }) => {
	const pageErrors = trackPageErrors(page);
	const zipA = await createZip('archiv-a');

	await page.goto('/tools/bea');
	await dropFiles(page, zipDropzone(page), [
		{ name: 'archiv-a.zip', mimeType: 'application/zip', buffer: zipA }
	]);
	await waitForLoadedWorkspace(page, /1 ZIP · 1 Archiv geöffnet/);

	await newZipButton(page).click();
	await replaceZipInput(page).setInputFiles([]);
	await expect(page.getByText('Aktuelle Bearbeitung ersetzen?')).toHaveCount(0);
	await expect(workspaceStatus(page, /1 ZIP · 1 Archiv geöffnet/)).toBeVisible();
	expect(pageErrors).toEqual([]);
});

test('the replacement input accepts the same ZIP twice', async ({ page }) => {
	const pageErrors = trackPageErrors(page);
	const zipA = await createZip('archiv-a');
	const zipB = await createZip('archiv-b');

	await page.goto('/tools/bea');
	await dropFiles(page, zipDropzone(page), [
		{ name: 'archiv-a.zip', mimeType: 'application/zip', buffer: zipA }
	]);
	await waitForLoadedWorkspace(page, /1 ZIP · 1 Archiv geöffnet/);

	await replaceThroughDialog(page, zipB, true);
	await waitForLoadedWorkspace(page, /1 ZIP · 1 Archiv geöffnet/);

	await replaceThroughDialog(page, zipB, true);
	await waitForLoadedWorkspace(page, /1 ZIP · 1 Archiv geöffnet/);
	await expect(page.getByText('1 lose Datei')).toHaveCount(1);
	expect(pageErrors).toEqual([]);
});

test('appending a ZIP keeps both archive editors visible', async ({ page }) => {
	const pageErrors = trackPageErrors(page);
	const zipA = await createZip('archiv-a');
	const zipB = await createZip('archiv-b');

	await page.goto('/tools/bea');
	await dropFiles(page, zipDropzone(page), [
		{ name: 'archiv-a.zip', mimeType: 'application/zip', buffer: zipA }
	]);
	await waitForLoadedWorkspace(page, /1 ZIP · 1 Archiv geöffnet/);

	await settingsButton(page).click();
	await appendZipInput(page).setInputFiles([
		{ name: 'archiv-b.zip', mimeType: 'application/zip', buffer: zipB }
	]);

	await waitForLoadedWorkspace(page, /2 ZIPs · 2 Archive geöffnet/);
	await expect(page.getByText('1 lose Datei')).toHaveCount(2);
	expect(pageErrors).toEqual([]);
});

test('bulk export only appears for two or more processed archives', async ({ page }) => {
	const pageErrors = trackPageErrors(page);
	const zipA = await createZip('archiv-a');
	const zipB = await createZip('archiv-b');

	await page.goto('/tools/bea');
	await dropFiles(page, zipDropzone(page), [
		{ name: 'archiv-a.zip', mimeType: 'application/zip', buffer: zipA }
	]);
	await waitForLoadedWorkspace(page, /1 ZIP · 1 Archiv geöffnet/);

	await settingsButton(page).click();
	await expect(
		page.getByRole('button', { name: 'Alle Archive als PDF herunterladen' })
	).toHaveCount(0);

	await appendZipInput(page).setInputFiles([
		{ name: 'archiv-b.zip', mimeType: 'application/zip', buffer: zipB }
	]);
	await waitForLoadedWorkspace(page, /2 ZIPs · 2 Archive geöffnet/);

	// The popover stays open, so the new bulk export action appears in place.
	const exportButton = page.getByRole('button', { name: 'Alle Archive als PDF herunterladen' });
	await expect(exportButton).toBeVisible();

	const downloadPromise = page.waitForEvent('download');
	await exportButton.click();
	await expectPdfDownload(await downloadPromise, /\.pdf$/);
	expect(pageErrors).toEqual([]);
});

test('clearing the workspace requires confirmation and returns to the dropzone', async ({
	page
}) => {
	const pageErrors = trackPageErrors(page);
	const zipA = await createZip('archiv-a');

	await page.goto('/tools/bea');
	await dropFiles(page, zipDropzone(page), [
		{ name: 'archiv-a.zip', mimeType: 'application/zip', buffer: zipA }
	]);
	await waitForLoadedWorkspace(page, /1 ZIP · 1 Archiv geöffnet/);

	await settingsButton(page).click();
	await page.getByRole('button', { name: 'Aktuelle Bearbeitung leeren' }).click();
	await expect(page.getByText('Aktuelle Bearbeitung leeren?')).toBeVisible();
	await page.getByRole('button', { name: 'Abbrechen' }).click();
	await expect(workspaceStatus(page, /1 ZIP · 1 Archiv geöffnet/)).toBeVisible();

	await page.getByRole('button', { name: 'Aktuelle Bearbeitung leeren' }).click();
	await page.getByRole('button', { name: 'Bearbeitung leeren', exact: true }).click();
	await expect(zipDropzone(page)).toBeVisible();
	await expect(newZipButton(page)).toHaveCount(0);
	expect(pageErrors).toEqual([]);
});

test('the preview-size slider works with arrow keys and survives a reload', async ({ page }) => {
	const pageErrors = trackPageErrors(page);
	const zipA = await createZip('archiv-a');

	await page.goto('/tools/bea');
	await dropFiles(page, zipDropzone(page), [
		{ name: 'archiv-a.zip', mimeType: 'application/zip', buffer: zipA }
	]);
	await waitForLoadedWorkspace(page, /1 ZIP · 1 Archiv geöffnet/);
	await expect(page.locator('li[style*="width: 200px"]').first()).toBeVisible();

	await settingsButton(page).click();
	const slider = page.getByRole('slider', { name: 'Vorschaugröße' });
	await expect(page.getByText('200 px')).toBeVisible();
	await slider.focus();
	await page.keyboard.press('ArrowRight');
	await expect(page.getByText('201 px')).toBeVisible();
	await expect(page.locator('li[style*="width: 201px"]').first()).toBeVisible();

	await page.reload();
	await page.locator('[data-dropzone-ready="true"]').first().waitFor();
	await dropFiles(page, zipDropzone(page), [
		{ name: 'archiv-a.zip', mimeType: 'application/zip', buffer: zipA }
	]);
	await waitForLoadedWorkspace(page, /1 ZIP · 1 Archiv geöffnet/);
	await settingsButton(page).click();
	await expect(page.getByText('201 px')).toBeVisible();
	await expect(await page.evaluate(() => localStorage.getItem('thumbnailWidth'))).toBe('201');
	expect(pageErrors).toEqual([]);
});

test('settings closes on Escape and outside click and returns focus to its trigger', async ({
	page
}) => {
	const pageErrors = trackPageErrors(page);
	const zipA = await createZip('archiv-a');

	await page.goto('/tools/bea');
	await dropFiles(page, zipDropzone(page), [
		{ name: 'archiv-a.zip', mimeType: 'application/zip', buffer: zipA }
	]);
	await waitForLoadedWorkspace(page, /1 ZIP · 1 Archiv geöffnet/);

	await expect(settingsButton(page)).toHaveAccessibleName('Einstellungen');
	await settingsButton(page).click();
	await expect(page.getByText('Vorschaugröße')).toBeVisible();
	await page.keyboard.press('Escape');
	await expect(page.getByText('Vorschaugröße')).toHaveCount(0);
	await expect(settingsButton(page)).toBeFocused();

	await settingsButton(page).click();
	await expect(page.getByText('Vorschaugröße')).toBeVisible();
	await page.getByRole('heading', { name: 'beA-Edit' }).click();
	await expect(page.getByText('Vorschaugröße')).toHaveCount(0);
	expect(pageErrors).toEqual([]);
});

test('mobile toolbar and settings popover stay inside the viewport', async ({ page }) => {
	const pageErrors = trackPageErrors(page);
	const zipA = await createZip('archiv-a');

	await page.setViewportSize({ width: 390, height: 844 });
	await page.goto('/tools/bea');
	await dropFiles(page, zipDropzone(page), [
		{ name: 'archiv-a.zip', mimeType: 'application/zip', buffer: zipA }
	]);
	await waitForLoadedWorkspace(page, /1 ZIP · 1 Archiv geöffnet/);

	await settingsButton(page).click();
	const popover = page.locator('[data-slot="popover-content"]');
	await expect(popover).toBeVisible();
	await expect(page.getByText('Weitere ZIP hinzufügen')).toBeVisible();

	const popoverBox = await popover.boundingBox();
	expect(popoverBox).not.toBeNull();
	expect(popoverBox!.x).toBeGreaterThanOrEqual(0);
	expect(popoverBox!.x + popoverBox!.width).toBeLessThanOrEqual(390);
	expect(popoverBox!.y).toBeGreaterThanOrEqual(0);
	expect(popoverBox!.y + popoverBox!.height).toBeLessThanOrEqual(844);
	const popoverMetrics = await popover.evaluate((element) => ({
		scrollWidth: element.scrollWidth,
		clientWidth: element.clientWidth
	}));
	expect(popoverMetrics.scrollWidth).toBeLessThanOrEqual(popoverMetrics.clientWidth);

	// The toolbar sits in normal flow, so it must not cover the archive header.
	const toolbarBox = await workspaceStatus(page, /1 ZIP · 1 Archiv geöffnet/).boundingBox();
	const archiveHeaderBox = await page.getByText('1 lose Datei').first().boundingBox();
	expect(toolbarBox).not.toBeNull();
	expect(archiveHeaderBox).not.toBeNull();
	expect(toolbarBox!.y + toolbarBox!.height).toBeLessThanOrEqual(archiveHeaderBox!.y);

	expect(pageErrors).toEqual([]);
});