import type { Page } from 'playwright'

export interface ApiMock {
	status: number
	body?: unknown
	headers?: Record<string, string>
	hang?: boolean
}

export interface DiffException {
	maxPercent: number
	reason: string
	approvedBy: string
}

export interface VisualState {
	exception?: DiffException
	skip?: 'clock-sensitive'
	path: string
	origin?: string
	now?: string
	paused?: boolean
	api?: Record<string, ApiMock>
	steps?: (page: Page) => Promise<void>
}

const registrationClosed: ApiMock = { status: 200, body: { open: false } }
const registrationOpen: ApiMock = { status: 200, body: { open: true } }

async function fillLogin(page: Page, username: string, password: string) {
	await page.getByPlaceholder('Your username').fill(username)
	await page.locator('input[autocomplete="current-password"]').fill(password)
}

function submitLogin(username: string, password: string) {
	return async (page: Page) => {
		await fillLogin(page, username, password)
		await page.getByRole('button', { name: 'Log in', exact: true }).click()
	}
}

function loginWith(response: ApiMock, path = '/login'): Omit<VisualState, 'steps'> {
	return {
		path,
		api: {
			'GET /v1/auth/registration': registrationClosed,
			'POST /v1/auth/login': response,
		},
	}
}

async function fillRegister(page: Page, username: string, email: string, password: string) {
	await page.getByPlaceholder('e.g. marta').fill(username)
	await page.getByPlaceholder('e.g. marta').blur()
	await page.getByPlaceholder('you@example.com').fill(email)
	await page.getByPlaceholder('you@example.com').blur()
	await page.locator('input[autocomplete="new-password"]').fill(password)
	await page.locator('input[autocomplete="new-password"]').blur()
}

function registerWith(response: ApiMock): Omit<VisualState, 'steps'> {
	return {
		path: '/register',
		api: {
			'POST /v1/auth/register': response,
		},
	}
}

function submitRegister(username: string, email: string, password: string) {
	return async (page: Page) => {
		await fillRegister(page, username, email, password)
		await page.getByRole('button', { name: 'Create account', exact: true }).click()
	}
}

async function setPendingEmail(page: Page, email: string) {
	await page.evaluate((value) => sessionStorage.setItem('renewcms:pendingEmail', value), email)
	await page.reload()
	await page.waitForLoadState('networkidle')
}

async function openCancelDialog(page: Page) {
	await page.getByRole('button', { name: 'Cancel registration', exact: true }).click()
}

async function confirmCancelDialog(page: Page) {
	await page
		.getByRole('alertdialog')
		.getByRole('button', { name: 'Cancel registration', exact: true })
		.click()
}

const boardNow = '2026-09-10T09:00:00Z'

const sixArticlesFixture = [
	{
		id: 1,
		title: 'How we price a bathroom renovation',
		body: '',
		images: [],
		is_online: true,
		created_at: '2026-03-12T09:00:00Z',
		updated_at: '2026-09-10T07:00:00Z',
	},
	{
		id: 2,
		title: 'Choosing lime plaster for old stone walls',
		body: '',
		images: [],
		is_online: false,
		created_at: '2026-09-09T08:00:00Z',
		updated_at: '2026-09-09T09:00:00Z',
	},
	{
		id: 3,
		title: 'Before and after: the Rue Verte kitchen',
		body: '',
		images: [],
		is_online: true,
		created_at: '2026-08-28T09:00:00Z',
		updated_at: '2026-09-07T09:00:00Z',
	},
	{
		id: 4,
		title: 'Winter checklist for timber windows',
		body: '',
		images: [],
		is_online: false,
		created_at: '2026-09-02T09:00:00Z',
		updated_at: '2026-09-05T09:00:00Z',
	},
	{
		id: 5,
		title: 'Why we reuse original floorboards',
		body: '',
		images: [],
		is_online: true,
		created_at: '2026-06-14T09:00:00Z',
		updated_at: '2026-08-18T09:00:00Z',
	},
	{
		id: 6,
		title: 'Our first passive-house retrofit',
		body: '',
		images: [],
		is_online: true,
		created_at: '2026-04-03T09:00:00Z',
		updated_at: '2026-07-02T09:00:00Z',
	},
]

const verifiedSession: ApiMock = {
	status: 200,
	body: { is_verified: true, username: 'marta' },
}

const editorNow = '2026-09-26T11:02:00Z'

const bathroomBody =
	"<p>Every bathroom is different, but the way we price them isn't. We start with a visit, measure everything, and <strong>write down what stays</strong>.</p>" +
	'<h2>What goes into the price</h2>' +
	'<ul><li>Stripping out and making good</li><li>Plumbing moves, if any</li><li>Tiles, fittings and a day for silicone</li></ul>' +
	'<p>We don’t add a margin on materials you choose yourself.</p>'

const editorArticle = {
	id: 12,
	title: 'How we price a bathroom renovation',
	body: bathroomBody,
	images: [
		{ id: 1, url: '/images/1.png' },
		{ id: 2, url: '/images/2.png' },
		{ id: 3, url: '/images/3.png' },
	],
	is_online: false,
	created_at: '2026-03-12T09:14:00Z',
	updated_at: editorNow,
}

function editorApi(overrides: Record<string, ApiMock> = {}): Record<string, ApiMock> {
	return {
		'GET /v1/auth/me': verifiedSession,
		'GET /v1/article/12': { status: 200, body: editorArticle },
		...overrides,
	}
}

async function focusBoldSample(page: Page) {
	await page.getByText('write down what stays').click()
}

async function markDirty(page: Page) {
	await page.getByText('choose yourself').click()
	await page.keyboard.press('End')
	await page.keyboard.type('x')
	await page.keyboard.press('Backspace')
}

async function typeExactBodyLength(page: Page, totalLength: number) {
	const editable = page.locator('[contenteditable="true"]')
	await editable.click()
	await page.keyboard.press('Control+a')
	await page.keyboard.press('Delete')
	const inner = 'a'.repeat(Math.max(0, totalLength - 7))
	await page.keyboard.insertText(inner)
}

function mib(value: number) {
	return Math.round(value * 1024 * 1024)
}

async function openImageUploader(page: Page) {
	await page.getByRole('button', { name: 'Image', exact: true }).first().click()
	await page.getByRole('dialog').getByText('Add an image').waitFor()
}

async function chooseImageFile(page: Page, filename: string, mimeType: string, size: number) {
	await page.locator('input[type="file"]').setInputFiles({
		name: filename,
		mimeType,
		buffer: Buffer.alloc(size),
	})
}

async function mockUploadedImage(page: Page) {
	const isDark = await page.evaluate(
		() => window.matchMedia('(prefers-color-scheme: dark)').matches,
	)
	const background = isDark ? 'rgb(26,26,26)' : 'rgb(244,244,245)'
	const border = isDark ? 'rgb(64,64,64)' : 'rgb(212,212,216)'
	await page.route('**/static/uploadedImages/**', async (route) => {
		const pathname = new URL(route.request().url()).pathname
		const svg = `<svg xmlns="http://www.w3.org/2000/svg" width="900" height="450"><rect width="100%" height="100%" fill="${background}" stroke="${border}" stroke-width="2" /><text x="50%" y="50%" text-anchor="middle" dominant-baseline="middle" font-family="monospace" font-size="16" fill="${border}">${pathname}</text></svg>`
		await route.fulfill({ status: 200, contentType: 'image/svg+xml', body: svg })
	})
}

async function freezeUploadProgress(page: Page, loaded: number, total: number) {
	await page.evaluate(
		({ loaded, total }) => {
			const proto = XMLHttpRequest.prototype as unknown as Record<string, unknown>
			const originalOpen = proto.open as (...args: unknown[]) => void
			proto.open = function (this: XMLHttpRequest, ...args: unknown[]) {
				;(this as unknown as { __imageUrl?: string }).__imageUrl = String(args[1])
				return originalOpen.apply(this, args)
			}
			const originalSend = proto.send as (...args: unknown[]) => void
			proto.send = function (this: XMLHttpRequest, ...args: unknown[]) {
				const url = (this as unknown as { __imageUrl?: string }).__imageUrl ?? ''
				if (url.includes('/image')) {
					setTimeout(() => {
						const event = new Event('progress')
						Object.assign(event, { loaded, total, lengthComputable: true })
						this.upload.dispatchEvent(event)
					}, 50)
					return
				}
				return originalSend.apply(this, args)
			}
		},
		{ loaded, total },
	)
}

const newArticleTitle = 'Choosing tiles for a small bathroom'
const newArticleBody = 'Small rooms show every grout line, so we start with the floor.'

function newArticleHomeApi(overrides: Record<string, ApiMock> = {}): Record<string, ApiMock> {
	return {
		'GET /v1/auth/me': verifiedSession,
		'GET /v1/article/': { status: 200, body: sixArticlesFixture },
		...overrides,
	}
}

async function openNewArticleModal(page: Page) {
	await page.getByRole('button', { name: 'New article' }).click()
	await page.getByRole('dialog').waitFor()
}

async function fillNewArticleValid(page: Page) {
	await page.getByPlaceholder(`e.g. ${newArticleTitle}`).fill(newArticleTitle)
	await page
		.getByPlaceholder("Start writing. You'll continue in the editor.")
		.fill(newArticleBody)
}

function submitNewArticle() {
	return async (page: Page) => {
		await openNewArticleModal(page)
		await fillNewArticleValid(page)
		await page.getByRole('button', { name: 'Create draft', exact: true }).click()
		await page.mouse.move(0, 0)
	}
}

const articlesNow = '2026-09-15T12:00:00Z'
const HOUR_MS = 60 * 60 * 1000
const DAY_MS = 24 * HOUR_MS

function articlesFixtureIso(offsetMs: number) {
	return new Date(new Date(articlesNow).getTime() - offsetMs).toISOString()
}

function articlesFixture() {
	return [
		{
			id: 1,
			title: 'How we price a bathroom renovation',
			body: '',
			images: [],
			is_online: true,
			created_at: '2026-03-12T09:14:00Z',
			updated_at: articlesFixtureIso(2 * HOUR_MS),
		},
		{
			id: 2,
			title: 'Choosing lime plaster for old stone walls',
			body: '',
			images: [],
			is_online: false,
			created_at: '2026-09-09T09:00:00Z',
			updated_at: articlesFixtureIso(1 * DAY_MS),
		},
		{
			id: 3,
			title: 'Before and after: the Rue Verte kitchen',
			body: '',
			images: [],
			is_online: true,
			created_at: '2026-08-28T09:00:00Z',
			updated_at: articlesFixtureIso(3 * DAY_MS),
		},
		{
			id: 4,
			title: 'Winter checklist for timber windows',
			body: '',
			images: [],
			is_online: false,
			created_at: '2026-09-02T09:00:00Z',
			updated_at: articlesFixtureIso(5 * DAY_MS),
		},
		{
			id: 5,
			title: 'Why we reuse original floorboards',
			body: '',
			images: [],
			is_online: true,
			created_at: '2026-06-14T09:00:00Z',
			updated_at: '2026-08-18T09:00:00Z',
		},
		{
			id: 6,
			title: 'Our first passive-house retrofit',
			body: '',
			images: [],
			is_online: true,
			created_at: '2026-04-03T09:00:00Z',
			updated_at: '2026-07-02T09:00:00Z',
		},
	]
}

function articlesFixtureWithImages() {
	return articlesFixture().map((article) =>
		article.id === 4
			? {
					...article,
					images: [
						{ id: 10, url: '/images/10.png' },
						{ id: 11, url: '/images/11.png' },
						{ id: 12, url: '/images/12.png' },
					],
				}
			: article,
	)
}

function articlesApi(overrides: Record<string, ApiMock> = {}): Record<string, ApiMock> {
	return {
		'GET /v1/auth/me': verifiedSession,
		'GET /v1/article/': { status: 200, body: articlesFixture() },
		...overrides,
	}
}

async function openArticleRowMenu(page: Page, title: string) {
	await page.getByRole('button', { name: `Actions for ${title}` }).click()
}

async function chooseArticleRowMenuItem(page: Page, label: string) {
	await page.getByRole('menuitem', { name: label, exact: true }).click()
}

async function fillResetRequestEmail(page: Page, email: string) {
	await page.getByPlaceholder('you@example.com').fill(email)
}

function submitResetRequest(email: string) {
	return async (page: Page) => {
		await fillResetRequestEmail(page, email)
		await page.getByRole('button', { name: 'Send reset link', exact: true }).click()
		await page.mouse.move(0, 0)
	}
}

function resetRequestWith(response: ApiMock): Omit<VisualState, 'steps'> {
	return {
		path: '/register/reset/request',
		api: {
			'POST /v1/auth/password-reset': response,
		},
	}
}

const resetConfirmPath = '/register/reset/validate?c=abc123&email=marta%40renew.example'

async function fillResetConfirm(page: Page, password: string, confirmPassword: string) {
	await page.locator('#reset-new-password').fill(password)
	await page.locator('#reset-confirm-password').fill(confirmPassword)
}

function submitResetConfirm(password: string, confirmPassword: string) {
	return async (page: Page) => {
		await fillResetConfirm(page, password, confirmPassword)
		await page.getByRole('button', { name: 'Change password', exact: true }).click()
		await page.mouse.move(0, 0)
	}
}

function resetConfirmWith(response: ApiMock): Omit<VisualState, 'steps'> {
	return {
		path: resetConfirmPath,
		api: {
			'POST /v1/auth/password-reset/confirm': response,
		},
	}
}

const integrationOrigin = 'https://cms.renew.example'

async function clickBaseUrlCopy(page: Page) {
	await page.getByRole('button', { name: 'Copy', exact: true }).first().click()
}

export const visualStates: Record<string, Record<string, VisualState>> = {
	integration: {
		Default: {
			path: '/integration',
			origin: integrationOrigin,
			api: { 'GET /v1/auth/me': verifiedSession },
		},
		Copied: {
			path: '/integration',
			origin: integrationOrigin,
			api: { 'GET /v1/auth/me': verifiedSession },
			steps: clickBaseUrlCopy,
		},
	},
	articles: {
		Default: {
			path: '/article',
			now: articlesNow,
			api: articlesApi(),
			exception: {
				maxPercent: 3.7,
				reason: 'UTable column boundaries land ~9-12px off the board grid (110/130/140/44px), unresolved by nth-child width overrides on table-fixed',
				approvedBy: 'Florian Sylvain',
			},
		},
		'Row menu open': {
			path: '/article',
			now: articlesNow,
			api: articlesApi(),
			steps: async (page) => {
				await openArticleRowMenu(page, 'Winter checklist for timber windows')
			},
			exception: {
				maxPercent: 7.5,
				reason: 'Same UTable column-boundary offset as Default, plus the open row menu popover rendering',
				approvedBy: 'Florian Sylvain',
			},
		},
		Loading: {
			path: '/article',
			now: articlesNow,
			api: articlesApi({
				'GET /v1/article/': { status: 200, body: articlesFixture(), hang: true },
			}),
			exception: {
				maxPercent: 10.6,
				reason: 'Skeleton placeholder block sizes/positions only approximate the board skeleton shape',
				approvedBy: 'Florian Sylvain',
			},
		},
		Empty: {
			path: '/article',
			now: articlesNow,
			api: articlesApi({ 'GET /v1/article/': { status: 200, body: [] } }),
			exception: {
				maxPercent: 3.6,
				reason: 'Same UTable/EmptyState geometry offset as Default, carried into the empty layout',
				approvedBy: 'Florian Sylvain',
			},
		},
		'No results': {
			path: '/article',
			now: articlesNow,
			api: articlesApi(),
			steps: async (page) => {
				await page.getByPlaceholder('Search by title').fill('tiles')
				await page.waitForTimeout(200)
			},
			exception: {
				maxPercent: 3.3,
				reason: 'Same UTable/EmptyState geometry offset as Default, carried into the no-results layout',
				approvedBy: 'Florian Sylvain',
			},
		},
		'No drafts': {
			path: '/article',
			now: articlesNow,
			api: articlesApi({
				'GET /v1/article/': {
					status: 200,
					body: articlesFixture()
						.slice(0, 4)
						.map((article) => ({ ...article, is_online: true })),
				},
			}),
			steps: async (page) => {
				await page.getByRole('tab', { name: /^Drafts/ }).focus()
				await page.keyboard.press('Enter')
			},
			exception: {
				maxPercent: 2.7,
				reason: 'Same UTable/EmptyState geometry offset as Default, carried into the no-drafts layout',
				approvedBy: 'Florian Sylvain',
			},
		},
		'Action in progress': {
			path: '/article',
			now: articlesNow,
			api: articlesApi({
				'PATCH /v1/article/4/publish': { status: 200, hang: true },
			}),
			steps: async (page) => {
				await openArticleRowMenu(page, 'Winter checklist for timber windows')
				await chooseArticleRowMenuItem(page, 'Publish')
			},
			exception: {
				maxPercent: 3.6,
				reason: 'Same UTable column-boundary offset as Default, plus the busy badge/spinner rendering',
				approvedBy: 'Florian Sylvain',
			},
		},
		Published: {
			path: '/article',
			now: articlesNow,
			api: articlesApi({
				'PATCH /v1/article/4/publish': {
					status: 200,
					body: {
						...articlesFixture()[3],
						is_online: true,
						updated_at: articlesNow,
					},
				},
			}),
			steps: async (page) => {
				await openArticleRowMenu(page, 'Winter checklist for timber windows')
				await chooseArticleRowMenuItem(page, 'Publish')
				await page.getByText('Article published').first().waitFor()
			},
			exception: {
				maxPercent: 4.6,
				reason: 'Same UTable column-boundary offset as Default, plus the success toast rendering',
				approvedBy: 'Florian Sylvain',
			},
		},
		'Action failed': {
			path: '/article',
			now: articlesNow,
			api: articlesApi({ 'PATCH /v1/article/3/unpublish': { status: 500 } }),
			steps: async (page) => {
				await openArticleRowMenu(page, 'Before and after: the Rue Verte kitchen')
				await chooseArticleRowMenuItem(page, 'Unpublish')
				await page.getByText("Couldn't unpublish").first().waitFor()
			},
			exception: {
				maxPercent: 5.7,
				reason: 'Same UTable column-boundary offset as Default, plus the error toast with Retry rendering',
				approvedBy: 'Florian Sylvain',
			},
		},
		'Row vanished (404)': {
			path: '/article',
			now: articlesNow,
			api: articlesApi({ 'PATCH /v1/article/2/publish': { status: 404 } }),
			steps: async (page) => {
				await openArticleRowMenu(page, 'Choosing lime plaster for old stone walls')
				await chooseArticleRowMenuItem(page, 'Publish')
				await page.getByText('That article no longer exists').first().waitFor()
			},
			exception: {
				maxPercent: 4.3,
				reason: 'Same UTable column-boundary offset as Default, plus the info toast after row removal',
				approvedBy: 'Florian Sylvain',
			},
		},
		'Delete: confirm': {
			path: '/article',
			now: articlesNow,
			api: articlesApi({
				'GET /v1/article/': { status: 200, body: articlesFixtureWithImages() },
			}),
			steps: async (page) => {
				await openArticleRowMenu(page, 'Winter checklist for timber windows')
				await chooseArticleRowMenuItem(page, 'Delete…')
				await page.getByRole('alertdialog').waitFor()
			},
		},
		'Delete: in progress': {
			path: '/article',
			now: articlesNow,
			api: articlesApi({
				'GET /v1/article/': { status: 200, body: articlesFixtureWithImages() },
				'DELETE /v1/article/4': { status: 204, hang: true },
			}),
			steps: async (page) => {
				await openArticleRowMenu(page, 'Winter checklist for timber windows')
				await chooseArticleRowMenuItem(page, 'Delete…')
				await page
					.getByRole('alertdialog')
					.getByRole('button', { name: 'Delete article' })
					.click()
			},
		},
		'Delete: failed': {
			path: '/article',
			now: articlesNow,
			api: articlesApi({
				'GET /v1/article/': { status: 200, body: articlesFixtureWithImages() },
				'DELETE /v1/article/4': { status: 500 },
			}),
			steps: async (page) => {
				await openArticleRowMenu(page, 'Winter checklist for timber windows')
				await chooseArticleRowMenuItem(page, 'Delete…')
				await page
					.getByRole('alertdialog')
					.getByRole('button', { name: 'Delete article' })
					.click()
				await page.getByText("Couldn't delete the article").waitFor()
			},
		},
		Deleted: {
			path: '/article',
			now: articlesNow,
			api: articlesApi({
				'GET /v1/article/': { status: 200, body: articlesFixtureWithImages() },
				'DELETE /v1/article/4': { status: 204 },
			}),
			steps: async (page) => {
				await openArticleRowMenu(page, 'Winter checklist for timber windows')
				await chooseArticleRowMenuItem(page, 'Delete…')
				await page
					.getByRole('alertdialog')
					.getByRole('button', { name: 'Delete article' })
					.click()
				await page.getByText('Article deleted').first().waitFor()
			},
		},
	},
	home: {
		Default: {
			path: '/home',
			now: boardNow,
			api: {
				'GET /v1/auth/me': verifiedSession,
				'GET /v1/article/': { status: 200, body: sixArticlesFixture },
			},
		},
		Loading: {
			path: '/home',
			now: boardNow,
			api: {
				'GET /v1/auth/me': verifiedSession,
				'GET /v1/article/': { status: 200, body: sixArticlesFixture, hang: true },
			},
		},
		'Empty, first run': {
			path: '/home',
			now: boardNow,
			api: {
				'GET /v1/auth/me': verifiedSession,
				'GET /v1/article/': { status: 200, body: [] },
			},
		},
		Error: {
			path: '/home',
			now: boardNow,
			api: {
				'GET /v1/auth/me': verifiedSession,
				'GET /v1/article/': { status: 500 },
			},
		},
	},
	'log-in': {
		Default: { path: '/login', api: { 'GET /v1/auth/registration': registrationClosed } },
		'Fresh install': {
			path: '/login',
			api: { 'GET /v1/auth/registration': registrationOpen },
			exception: {
				maxPercent: 1.1,
				reason: 'The board draws a design-time "API pending" chip in the footer; the API exists, so the app omits it and the theme select fits on the first row on mobile',
				approvedBy: 'Florian Sylvain, 2026-09-26',
			},
		},
		'Validation errors': {
			...loginWith({ status: 500 }),
			steps: submitLogin('ma', ''),
		},
		Submitting: {
			...loginWith({ status: 200, hang: true }),
			steps: submitLogin('marta', 'limewash2026'),
		},
		'Wrong credentials (403)': {
			...loginWith({ status: 403, body: 'forbidden' }),
			steps: submitLogin('marta', 'limewash2026'),
		},
		'Too many attempts (429)': {
			...loginWith({ status: 429, headers: { 'Retry-After': '42' } }),
			steps: submitLogin('marta', 'limewash'),
		},
		'Session expired': {
			...loginWith({ status: 500 }, '/login?redirect=/article/12/edit&reason=expired'),
			steps: async (page) => {
				await page.getByPlaceholder('Your username').fill('marta')
				await page.locator('input[autocomplete="current-password"]').focus()
			},
		},
		'Password changed': {
			path: '/login?reason=password-changed',
			api: { 'GET /v1/auth/registration': registrationClosed },
		},
		'Server or network error': {
			...loginWith({ status: 500 }),
			steps: submitLogin('marta', 'limewash2026'),
		},
	},
	register: {
		Default: { path: '/register' },
		'Validation errors': {
			path: '/register',
			steps: async (page) => {
				await fillRegister(page, 'ma', 'marta@renew', 'lime')
			},
		},
		'Filled, valid': {
			path: '/register',
			steps: async (page) => {
				await fillRegister(page, 'marta', 'marta@renew.example', 'limewash2026')
				await page.getByRole('button', { name: 'Show password' }).click()
			},
		},
		Submitting: {
			...registerWith({ status: 200, hang: true }),
			steps: submitRegister('marta', 'marta@renew.example', 'limewash2026'),
		},
		'Registration closed (403)': {
			...registerWith({ status: 403 }),
			steps: submitRegister('marta', 'marta@renew.example', 'limewash2026'),
		},
		'Server error': {
			...registerWith({ status: 500 }),
			steps: submitRegister('marta', 'marta@renew.example', 'limewash2026'),
		},
	},
	pending: {
		Default: {
			path: '/register/pending',
			api: { 'GET /v1/auth/me': { status: 200, body: { is_verified: false } } },
			steps: async (page) => {
				await setPendingEmail(page, 'marta@renew.example')
			},
		},
		'Email unknown': {
			path: '/register/pending',
			api: { 'GET /v1/auth/me': { status: 200, body: { is_verified: false } } },
		},
		'Confirm cancel': {
			path: '/register/pending',
			api: { 'GET /v1/auth/me': { status: 200, body: { is_verified: false } } },
			steps: async (page) => {
				await setPendingEmail(page, 'marta@renew.example')
				await openCancelDialog(page)
			},
		},
		Cancelling: {
			path: '/register/pending',
			api: {
				'GET /v1/auth/me': { status: 200, body: { is_verified: false } },
				'DELETE /v1/auth/register': { status: 200, hang: true },
			},
			steps: async (page) => {
				await setPendingEmail(page, 'marta@renew.example')
				await openCancelDialog(page)
				await confirmCancelDialog(page)
			},
		},
		Cancelled: {
			path: '/register/pending',
			api: {
				'GET /v1/auth/me': { status: 200, body: { is_verified: false } },
				'DELETE /v1/auth/register': { status: 200, body: { message: 'ok' } },
			},
			steps: async (page) => {
				await setPendingEmail(page, 'marta@renew.example')
				await openCancelDialog(page)
				await confirmCancelDialog(page)
				await page.waitForURL('**/register')
			},
		},
		'Already verified (403)': {
			path: '/register/pending',
			paused: true,
			api: {
				'DELETE /v1/auth/register': { status: 403 },
				'GET /v1/auth/me': { status: 200, body: { is_verified: true } },
			},
			steps: async (page) => {
				await setPendingEmail(page, 'marta@renew.example')
				await openCancelDialog(page)
				await confirmCancelDialog(page)
				await page.getByText("You're verified").waitFor()
			},
		},
	},
	editor: {
		Loading: {
			path: '/article/12/edit',
			now: editorNow,
			api: editorApi({
				'GET /v1/article/12': { status: 200, body: editorArticle, hang: true },
			}),
		},
		Saved: {
			path: '/article/12/edit',
			now: editorNow,
			api: editorApi(),
			steps: async (page) => {
				await focusBoldSample(page)
			},
		},
		'Unsaved changes': {
			path: '/article/12/edit',
			now: editorNow,
			api: editorApi(),
			steps: async (page) => {
				await markDirty(page)
				await focusBoldSample(page)
			},
		},
		Saving: {
			path: '/article/12/edit',
			now: editorNow,
			api: editorApi({
				'PATCH /v1/article/12': { status: 200, body: editorArticle, hang: true },
			}),
			steps: async (page) => {
				await markDirty(page)
				await focusBoldSample(page)
				await page.getByRole('button', { name: 'Save', exact: true }).click()
			},
		},
		'Save failed': {
			path: '/article/12/edit',
			now: editorNow,
			api: editorApi({ 'PATCH /v1/article/12': { status: 500 } }),
			steps: async (page) => {
				await markDirty(page)
				await page.getByRole('button', { name: 'Save', exact: true }).click()
				await page.getByText('Save failed').waitFor()
				await focusBoldSample(page)
			},
		},
		'Near the limit': {
			path: '/article/12/edit',
			now: editorNow,
			api: editorApi(),
			steps: async (page) => {
				await typeExactBodyLength(page, 9240)
			},
		},
		'Too long': {
			path: '/article/12/edit',
			now: editorNow,
			api: editorApi(),
			steps: async (page) => {
				await typeExactBodyLength(page, 10214)
			},
		},
		Preview: {
			path: '/article/12/edit',
			now: editorNow,
			api: editorApi(),
			steps: async (page) => {
				const preview = page.getByRole('switch')
				if (await preview.count()) {
					await preview.click()
				}
			},
		},
		'Leave with unsaved changes': {
			path: '/article/12/edit',
			now: editorNow,
			api: editorApi(),
			paused: true,
			steps: async (page) => {
				await markDirty(page)
				await focusBoldSample(page)
				await page.getByRole('button', { name: 'Back to Articles' }).click()
				await page.getByRole('alertdialog').waitFor()
			},
		},
		Offline: {
			path: '/article/12/edit',
			now: editorNow,
			api: editorApi(),
			steps: async (page) => {
				await markDirty(page)
				await focusBoldSample(page)
				await page.evaluate(() => {
					Object.defineProperty(navigator, 'onLine', {
						configurable: true,
						get: () => false,
					})
					window.dispatchEvent(new Event('offline'))
				})
				await page.getByText('Waiting for connection').waitFor()
			},
		},
		'Not found (404)': {
			path: '/article/9999/edit',
			now: editorNow,
			api: {
				'GET /v1/auth/me': verifiedSession,
				'GET /v1/article/9999': { status: 404 },
			},
		},
		'Upload: choose': {
			path: '/article/12/edit',
			now: editorNow,
			api: editorApi(),
			steps: async (page) => {
				await markDirty(page)
				await openImageUploader(page)
			},
		},
		'Upload: in progress': {
			path: '/article/12/edit',
			now: editorNow,
			api: editorApi(),
			steps: async (page) => {
				await markDirty(page)
				await openImageUploader(page)
				await freezeUploadProgress(page, mib(2.4), mib(3.9))
				await chooseImageFile(page, 'north-wall.jpg', 'image/jpeg', mib(3.9))
				await page.getByText('north-wall.jpg 62%').waitFor()
			},
		},
		'Upload: rejected': {
			path: '/article/12/edit',
			now: editorNow,
			api: editorApi(),
			steps: async (page) => {
				await markDirty(page)
				await openImageUploader(page)
				await chooseImageFile(page, 'north-wall.tif', 'image/png', mib(14.2))
				await page.getByText(`"north-wall.tif" can't be used`).waitFor()
			},
		},
		'Upload: inserted': {
			path: '/article/12/edit',
			now: editorNow,
			api: editorApi({
				'POST /v1/article/12/image': {
					status: 201,
					body: { location: '/static/uploadedImages/north-wall.jpg' },
				},
			}),
			steps: async (page) => {
				await mockUploadedImage(page)
				await page.getByText('add a margin on materials').click()
				await page.keyboard.press('Home')
				await openImageUploader(page)
				await chooseImageFile(page, 'north-wall.jpg', 'image/jpeg', mib(3.9))
				await page.getByText('Save to keep it in the article.').first().waitFor()
				await page.waitForTimeout(650)
			},
		},
	},
	'new-article': {
		Default: {
			path: '/home',
			now: boardNow,
			api: newArticleHomeApi(),
			steps: openNewArticleModal,
		},
		Validation: {
			path: '/home',
			now: boardNow,
			api: newArticleHomeApi(),
			steps: async (page) => {
				await openNewArticleModal(page)
				await page.getByPlaceholder(`e.g. ${newArticleTitle}`).fill('Ti')
				await page.getByPlaceholder(`e.g. ${newArticleTitle}`).blur()
				await page.getByPlaceholder("Start writing. You'll continue in the editor.").click()
				await page.getByPlaceholder("Start writing. You'll continue in the editor.").blur()
			},
		},
		Submitting: {
			path: '/home',
			now: boardNow,
			api: newArticleHomeApi({ 'POST /v1/article/': { status: 201, hang: true } }),
			steps: submitNewArticle(),
		},
		'Title rejected (400)': {
			path: '/home',
			now: boardNow,
			api: newArticleHomeApi({ 'POST /v1/article/': { status: 400 } }),
			steps: submitNewArticle(),
		},
		Error: {
			path: '/home',
			now: boardNow,
			api: newArticleHomeApi({ 'POST /v1/article/': { status: 500 } }),
			steps: submitNewArticle(),
		},
	},
	verify: {
		Verifying: {
			path: '/register/validate?c=abc123',
			api: { 'POST /v1/auth/verify': { status: 200, hang: true } },
		},
		Success: {
			path: '/register/validate?c=abc123',
			paused: true,
			api: {
				'POST /v1/auth/verify': { status: 200, body: { message: 'ok' } },
				'GET /v1/auth/me': { status: 200, body: { is_verified: true } },
			},
		},
		'Invalid or expired (403)': {
			path: '/register/validate?c=abc123',
			api: { 'POST /v1/auth/verify': { status: 403 } },
		},
		'No session (401)': {
			path: '/register/validate?c=abc123',
			api: { 'POST /v1/auth/verify': { status: 401 } },
		},
		'No session, retrying': {
			path: '/register/validate?c=abc123',
			api: { 'POST /v1/auth/verify': { status: 200, hang: true } },
		},
		'Missing code': {
			path: '/register/validate',
		},
	},
	'forgot-password': {
		Default: { path: '/register/reset/request' },
		'Validation error': {
			path: '/register/reset/request',
			steps: submitResetRequest('marta@renew'),
		},
		Submitting: {
			...resetRequestWith({ status: 200, hang: true }),
			steps: submitResetRequest('marta@renew.example'),
		},
		Sent: {
			...resetRequestWith({ status: 200, body: { message: 'ok' } }),
			steps: submitResetRequest('marta@renew.example'),
		},
		'Too many attempts (429)': {
			...resetRequestWith({ status: 429, headers: { 'Retry-After': '58' } }),
			steps: submitResetRequest('marta@renew.example'),
		},
		'Server error': {
			...resetRequestWith({ status: 500 }),
			steps: submitResetRequest('marta@renew.example'),
		},
	},
	'reset-password': {
		Default: { path: resetConfirmPath },
		'Too short': {
			path: resetConfirmPath,
			steps: submitResetConfirm('lime', 'lime'),
		},
		Mismatch: {
			path: resetConfirmPath,
			steps: async (page) => {
				await fillResetConfirm(page, 'limewash2026', 'limewash2025')
				await page.locator('#reset-confirm-password').blur()
			},
		},
		Submitting: {
			...resetConfirmWith({ status: 200, hang: true }),
			steps: submitResetConfirm('limewash2026', 'limewash2026'),
		},
		Success: {
			path: resetConfirmPath,
			api: {
				'POST /v1/auth/password-reset/confirm': { status: 200, body: { message: 'ok' } },
				'GET /v1/auth/registration': registrationClosed,
			},
			steps: async (page) => {
				await submitResetConfirm('limewash2026', 'limewash2026')(page)
				await page.waitForURL('**/login**')
				await page.getByText('Password changed').waitFor()
			},
		},
		'Invalid or expired (403)': {
			...resetConfirmWith({ status: 403 }),
			steps: submitResetConfirm('limewash2026', 'limewash2026'),
		},
		'Missing parameters': {
			path: '/register/reset/validate',
		},
		'Server error': {
			...resetConfirmWith({ status: 500 }),
			steps: submitResetConfirm('limewash2026', 'limewash2026'),
		},
	},
}