import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest'
import { mount, flushPromises, type VueWrapper } from '@vue/test-utils'
import { createPinia, setActivePinia } from 'pinia'
import uiPlugin from '@nuxt/ui/vue-plugin'
import router from '@/router'
import { ApiError, NetworkError, useApi, type UserRole } from '@/composables/useApi'
import type { UpdateStatus } from '@/composables/useUpdate'
import { reloadPage } from '@/lib/reloadPage'
import { RESTART_MEMORY_KEY } from '@/lib/restartMemory'
import { useSessionStore } from '@/stores/session'
import ConfirmDialog from '@/components/ConfirmDialog.vue'
import SettingsView from '../SettingsView.vue'
import {
	CHECK_PATH,
	DOWNLOAD_PATH,
	RESTART_FINISHED_AT,
	RELEASE_URL,
	RESTART_PATH,
	RESTART_STARTED_AT,
	RUNNING_VERSION,
	STATUS_PATH,
	downloading,
	findButton,
	hoursAgo,
	newerAvailable,
	plainRestartDone,
	ready,
	restarting,
	rolledBack,
	startable,
	upToDate,
	updateSucceeded,
	verifying,
	visibleButtonLabels,
	DEFAULT_PURGE_SETTINGS,
	PURGE_SETTINGS_PATH,
} from './updateTestKit'

vi.mock('@/composables/useApi', async (importOriginal) => {
	const actual = await importOriginal<typeof import('@/composables/useApi')>()
	return { ...actual, useApi: vi.fn() }
})

vi.mock('@/lib/reloadPage', () => ({ reloadPage: vi.fn() }))

let toastAdd: ReturnType<typeof vi.fn>

function createOverlayMock() {
	let props: Record<string, unknown> | null = null
	let resolveOpen: ((value: unknown) => void) | null = null
	const state = { settled: false, confirmed: null as unknown }
	const create = vi.fn((_component: unknown, options: { props: Record<string, unknown> }) => {
		props = options.props
		return {
			open: () =>
				new Promise((resolve) => {
					resolveOpen = (value) => {
						state.settled = true
						state.confirmed = value
						resolve(value)
					}
				}),
		}
	})
	return {
		create,
		state,
		getProps: () => props as Record<string, unknown>,
		resolveOpen: (value: unknown) => resolveOpen?.(value),
	}
}

let overlayMock: ReturnType<typeof createOverlayMock>

vi.mock('@nuxt/ui/composables', async (importOriginal) => {
	const actual = await importOriginal<typeof import('@nuxt/ui/composables')>()
	return { ...actual, useToast: () => ({ add: toastAdd }), useOverlay: () => overlayMock }
})

type Outcome = UpdateStatus | Error
type Handler = () => Promise<unknown>

const RESTART_FAILED_COPY =
	"Couldn't start the restart. Nothing was changed and your site is still running. Try again in a moment."
const INSTALL_TITLE = 'Restart to finish the update?'
const INSTALL_TEXT =
	"RenewCMS will install version 2.3.0-beta and restart. Your site will be unavailable for about 10 seconds. This page reloads on its own when the site is back. Save anything you're editing first."
const PLAIN_TITLE = 'Restart the site?'
const PLAIN_TEXT =
	"Your site will be unavailable for about 10 seconds. This page reloads on its own when the site is back. Save anything you're editing first."

let requestMock: ReturnType<typeof vi.fn>
let fetchMock: ReturnType<typeof vi.fn>
let wrapper: VueWrapper | null = null
let siteUp = false

function sequence(...outcomes: Outcome[]): Handler {
	let index = 0
	return () => {
		const outcome = outcomes[Math.min(index, outcomes.length - 1)]!
		index++
		return outcome instanceof Error ? Promise.reject(outcome) : Promise.resolve(outcome)
	}
}

function asHandler(value: Handler | Outcome): Handler {
	return typeof value === 'function' ? value : sequence(value)
}

interface MountOptions {
	role: UserRole
	status: Handler | UpdateStatus
	restart?: Handler | Outcome
	download?: Handler | Outcome
	check?: Handler | Outcome
	meAfterRefresh?: UserRole
}

async function mountSettings(options: MountOptions) {
	setActivePinia(createPinia())
	toastAdd = vi.fn()
	overlayMock = createOverlayMock()
	const session = useSessionStore()
	session.session = { verified: true, username: 'marta', id: 1, role: options.role }
	session.status = 'ready'
	const statusHandler = asHandler(options.status)
	const restartHandler = asHandler(options.restart ?? new ApiError(500))
	const downloadHandler = asHandler(options.download ?? new ApiError(500))
	const checkHandler = asHandler(options.check ?? new ApiError(500))
	requestMock = vi.fn((path: string) => {
		const handlers: Record<string, Handler> = {
			'/v1/settings/': () => Promise.resolve({ version: RUNNING_VERSION }),
			[STATUS_PATH]: statusHandler,
			[RESTART_PATH]: restartHandler,
			[DOWNLOAD_PATH]: downloadHandler,
			[CHECK_PATH]: checkHandler,
		}
		const handler = handlers[path]
		if (!handler) {
			if (path === PURGE_SETTINGS_PATH) {
				return Promise.resolve(DEFAULT_PURGE_SETTINGS)
			}
			throw new Error(`Unexpected request: ${path}`)
		}
		return handler()
	})
	fetchMock = vi.fn((url: string) => {
		if (url !== '/healthz') {
			throw new Error(`Unexpected fetch: ${url}`)
		}
		return siteUp
			? Promise.resolve({ status: 200 } as Response)
			: Promise.reject(new TypeError('Failed to fetch'))
	})
	global.fetch = fetchMock as unknown as typeof fetch
	const getMe = vi.fn().mockResolvedValue({
		verified: true,
		username: 'marta',
		id: 1,
		displayName: '',
		role: options.meAfterRefresh ?? options.role,
	})
	vi.mocked(useApi).mockReturnValue({ getMe, request: requestMock })
	await router.push('/settings')
	wrapper = mount(SettingsView, {
		attachTo: document.body,
		global: { plugins: [router, uiPlugin] },
	})
	await flushPromises()
	return wrapper
}

function useTimers() {
	vi.useFakeTimers({ toFake: ['setTimeout', 'clearTimeout', 'setInterval', 'clearInterval'] })
}

async function tick(milliseconds: number) {
	await vi.advanceTimersByTimeAsync(milliseconds)
}

function updatesCard() {
	return document.body.querySelector('[data-testid="updates-card"]')!
}

function cardText() {
	return updatesCard().textContent ?? ''
}

function cardButtons() {
	return visibleButtonLabels(updatesCard())
}

function dialogProps() {
	return overlayMock.getProps() as {
		title: string
		description: string
		confirmLabel: string
		cancelLabel: string
		pendingLabel: string
		tone: string
		action: () => Promise<void>
	}
}

function dialogOpen() {
	return overlayMock.create.mock.calls.length > 0 && !overlayMock.state.settled
}

async function confirmRestart() {
	let completed = false
	try {
		await dialogProps().action()
		completed = true
	} catch {
		completed = false
	}
	if (completed) {
		overlayMock.resolveOpen(true)
	}
	await flushPromises()
}

async function dismissRestartDialog() {
	overlayMock.resolveOpen(false)
	await flushPromises()
	await flushPromises()
}

function mountRealDialog(props: ReturnType<typeof dialogProps>) {
	return mount(ConfirmDialog, {
		attachTo: document.body,
		props: { ...props } as never,
		global: { plugins: [uiPlugin] },
	})
}

function realDialog() {
	return document.body.querySelector('[role="alertdialog"]')
}

function overlayElement() {
	return document.body.querySelector('[data-testid="restart-overlay"]')
}

function callsTo(path: string) {
	return requestMock.mock.calls.filter(([called]) => called === path)
}

function healthCalls() {
	return fetchMock.mock.calls.filter(([url]) => url === '/healthz')
}

async function press(label: string) {
	findButton(label)!.click()
	await flushPromises()
}

async function pressEscape() {
	document.dispatchEvent(
		new KeyboardEvent('keydown', { key: 'Escape', code: 'Escape', bubbles: true }),
	)
	await flushPromises()
}

function silenceStatusReads() {
	requestMock.mockImplementation((path: string) => {
		if (path === STATUS_PATH) {
			return Promise.reject(new NetworkError())
		}
		if (path === PURGE_SETTINGS_PATH) {
			return Promise.resolve(DEFAULT_PURGE_SETTINGS)
		}
		throw new Error(`Unexpected request: ${path}`)
	})
}

function remembered() {
	const raw = sessionStorage.getItem(RESTART_MEMORY_KEY)
	return raw === null ? null : JSON.parse(raw)
}

function remember(kind: 'update' | 'restart', startedAt = RESTART_STARTED_AT) {
	sessionStorage.setItem(RESTART_MEMORY_KEY, JSON.stringify({ kind, started_at: startedAt }))
}

function toastTitles() {
	return toastAdd.mock.calls.map(([toast]) => toast.title)
}

beforeEach(() => {
	siteUp = false
	sessionStorage.clear()
	localStorage.clear()
	vi.mocked(reloadPage).mockClear()
})

afterEach(async () => {
	wrapper?.unmount()
	wrapper = null
	vi.useRealTimers()
	await router.push('/login')
	document.body.innerHTML = ''
	sessionStorage.clear()
})

describe('Settings, owner, Restart buttons', () => {
	it('ready: Restart is the enabled primary button', async () => {
		await mountSettings({ role: 'owner', status: ready() })

		expect(cardButtons()).toEqual(['Restart', "What's new in 2.3.0-beta"])
		const restart = findButton('Restart') as HTMLButtonElement
		expect(restart.disabled).toBe(false)
		expect(restart.className).not.toContain('border-accented')
	})

	it('idle (Up to date): Restart is an enabled secondary button next to Check for updates', async () => {
		await mountSettings({ role: 'owner', status: upToDate({ can_apply: true }) })

		expect(cardButtons()).toEqual(['Check for updates', 'Restart'])
		const restart = findButton('Restart') as HTMLButtonElement
		expect(restart.disabled).toBe(false)
		expect(restart.className).toContain('border-accented')
		expect(cardText()).toContain(
			'Restart takes about 10 seconds. Your site is unavailable while it restarts.',
		)
	})

	it('idle (Check failed): Try again is primary and Restart is secondary', async () => {
		await mountSettings({
			role: 'owner',
			status: upToDate({ can_apply: true, checked_at: hoursAgo(48) }),
			check: new ApiError(500),
		})

		expect(cardText()).toContain("Couldn't check for updates")
		expect(cardButtons()).toEqual(['Try again', 'Restart'])
		expect((findButton('Restart') as HTMLButtonElement).disabled).toBe(false)
	})

	it.each([
		{ name: 'downloading', status: downloading() },
		{ name: 'verifying', status: verifying() },
	])('$name: no Restart is drawn', async ({ status }) => {
		useTimers()
		await mountSettings({ role: 'owner', status })

		expect(cardButtons()).toEqual(['Updating…'])
	})

	it.each([
		{ name: 'Not prepared', role: 'owner' as const, status: newerAvailable() },
		{ name: 'an admin, up to date', role: 'admin' as const, status: upToDate() },
		{
			name: 'an admin, helper installed',
			role: 'admin' as const,
			status: upToDate({ can_apply: true }),
		},
	])('$name: no Restart is rendered', async ({ role, status }) => {
		await mountSettings({ role, status })

		expect(cardButtons()).not.toContain('Restart')
	})
})

describe('Settings, Restart: confirm (Install dialog)', () => {
	it('opens the dialog with the exact copy, a neutral confirm and sends nothing yet', async () => {
		await mountSettings({ role: 'owner', status: ready() })

		await press('Restart')

		expect(overlayMock.create).toHaveBeenCalledTimes(1)
		expect(dialogProps()).toMatchObject({
			title: INSTALL_TITLE,
			description: INSTALL_TEXT,
			cancelLabel: 'Restart later',
			confirmLabel: 'Restart now',
			tone: 'neutral',
		})
		expect(callsTo(RESTART_PATH)).toHaveLength(0)
		expect(overlayElement()).toBeNull()
	})

	it('renders with focus on the first button; Escape and Restart later close it', async () => {
		await mountSettings({ role: 'owner', status: ready() })
		await press('Restart')
		const props = dialogProps()

		const dialog = mountRealDialog(props)
		await flushPromises()

		expect(realDialog()!.textContent).toContain(INSTALL_TITLE)
		expect(realDialog()!.textContent).toContain(INSTALL_TEXT)
		expect(visibleButtonLabels(realDialog()!)).toEqual(['Restart later', 'Restart now'])
		expect(document.activeElement).toBe(findButton('Restart later', realDialog()!))
		expect(findButton('Restart now', realDialog()!)!.className).not.toContain('error')

		await pressEscape()
		expect(dialog.emitted('close')).toEqual([[false]])
		dialog.unmount()

		const second = mountRealDialog(props)
		await flushPromises()
		await press('Restart later')
		expect(second.emitted('close')).toEqual([[false]])
		second.unmount()
		expect(callsTo(RESTART_PATH)).toHaveLength(0)
	})

	it('closing without confirming returns focus to Restart and sends nothing', async () => {
		await mountSettings({ role: 'owner', status: ready() })
		await press('Restart')

		await dismissRestartDialog()

		expect(callsTo(RESTART_PATH)).toHaveLength(0)
		expect((document.activeElement as HTMLElement).dataset.testid).toBe('restart-button')
	})

	it('Restart now sends {"kind":"update"}', async () => {
		useTimers()
		await mountSettings({ role: 'owner', status: ready(), restart: restarting() })
		await press('Restart')

		await confirmRestart()

		expect(requestMock).toHaveBeenCalledWith(
			RESTART_PATH,
			expect.objectContaining({ method: 'POST', body: JSON.stringify({ kind: 'update' }) }),
		)
	})
})

describe('Settings, Plain restart: confirm', () => {
	it('opens the dialog with the exact copy and sends {"kind":"restart"} only on confirm', async () => {
		useTimers()
		await mountSettings({
			role: 'owner',
			status: upToDate({ can_apply: true }),
			restart: restarting(),
		})

		await press('Restart')

		expect(dialogProps()).toMatchObject({
			title: PLAIN_TITLE,
			description: PLAIN_TEXT,
			cancelLabel: 'Cancel',
			confirmLabel: 'Restart site',
			tone: 'neutral',
		})
		expect(callsTo(RESTART_PATH)).toHaveLength(0)

		await confirmRestart()

		expect(requestMock).toHaveBeenCalledWith(
			RESTART_PATH,
			expect.objectContaining({ method: 'POST', body: JSON.stringify({ kind: 'restart' }) }),
		)
	})

	it('renders with focus on Cancel and closing returns focus to Restart', async () => {
		await mountSettings({ role: 'owner', status: upToDate({ can_apply: true }) })
		await press('Restart')

		const dialog = mountRealDialog(dialogProps())
		await flushPromises()

		expect(visibleButtonLabels(realDialog()!)).toEqual(['Cancel', 'Restart site'])
		expect(document.activeElement).toBe(findButton('Cancel', realDialog()!))
		await pressEscape()
		expect(dialog.emitted('close')).toEqual([[false]])
		dialog.unmount()

		await dismissRestartDialog()
		expect(callsTo(RESTART_PATH)).toHaveLength(0)
		expect((document.activeElement as HTMLElement).dataset.testid).toBe('restart-button')
	})
})

describe('Settings, Restart: request failed', () => {
	it.each([
		{ name: 'a 500', error: new ApiError(500) },
		{ name: 'a network failure', error: new NetworkError() },
		{ name: 'a 400', error: new ApiError(400) },
	])(
		'$name keeps both dialogs open with the error and re-enables the confirm',
		async ({ error }) => {
			for (const scenario of [
				{ status: ready(), confirm: 'Restart now' },
				{ status: upToDate({ can_apply: true }), confirm: 'Restart site' },
			]) {
				await mountSettings({ role: 'owner', status: scenario.status, restart: error })
				await press('Restart')
				const dialog = mountRealDialog(dialogProps())
				await flushPromises()

				findButton(scenario.confirm, realDialog()!)!.click()
				await flushPromises()

				expect(realDialog()).not.toBeNull()
				expect(realDialog()!.textContent).toContain(RESTART_FAILED_COPY)
				expect(dialog.emitted('close')).toBeUndefined()
				expect(
					(findButton(scenario.confirm, realDialog()!) as HTMLButtonElement).disabled,
				).toBe(false)
				expect(dialogOpen()).toBe(true)
				expect(overlayElement()).toBeNull()
				expect(sessionStorage.length).toBe(0)
				dialog.unmount()
				wrapper?.unmount()
				document.body.innerHTML = ''
			}
		},
	)

	it('never carries a raw error body into the dialog', async () => {
		await mountSettings({
			role: 'owner',
			status: ready(),
			restart: new ApiError(500, undefined, 'Internal server error'),
		})
		await press('Restart')

		await expect(dialogProps().action()).rejects.toThrow(RESTART_FAILED_COPY)
	})
})

describe('Settings, this tab remembers that it started the restart', () => {
	it('stores one sessionStorage entry with the kind and the server started_at, and nothing else', async () => {
		useTimers()
		await mountSettings({
			role: 'owner',
			status: ready(),
			restart: startable({ state: 'restarting', started_at: '2026-09-30T09:51:07Z' }),
		})
		const storageBefore = JSON.stringify({ ...localStorage })
		await press('Restart')

		await confirmRestart()

		expect(sessionStorage.length).toBe(1)
		expect(remembered()).toEqual({ kind: 'update', started_at: '2026-09-30T09:51:07Z' })
		expect(JSON.stringify({ ...localStorage })).toBe(storageBefore)
		expect(overlayElement()).not.toBeNull()
	})
})

describe('Settings, Restarting to install', () => {
	async function startInstallRestart() {
		useTimers()
		await mountSettings({ role: 'owner', status: ready(), restart: restarting() })
		await press('Restart')
		await confirmRestart()
	}

	it('shows the status region with the copy and the moving bar', async () => {
		await startInstallRestart()

		const overlay = overlayElement()!
		expect(overlay.getAttribute('role')).toBe('status')
		expect(overlay.textContent).toContain('Installing version 2.3.0-beta')
		expect(overlay.textContent).toContain(
			'Your site is restarting with the new version. This takes about 10 seconds. This page reloads on its own when the site is back.',
		)
		expect(overlay.textContent).toMatch(/Started at \d\d:\d\d/)
		expect(overlay.querySelector('[role="progressbar"]')).not.toBeNull()
		expect(overlay.textContent).not.toContain('Reload page')
	})

	it('survives failing requests and polls /healthz and GET every second', async () => {
		await startInstallRestart()
		const healthBefore = healthCalls().length
		const readsBefore = callsTo(STATUS_PATH).length

		await tick(3000)

		expect(healthCalls().length - healthBefore).toBe(3)
		expect(callsTo(STATUS_PATH).length - readsBefore).toBe(3)
		expect(overlayElement()).not.toBeNull()
		expect(reloadPage).not.toHaveBeenCalled()
	})

	it('ignores the offline state and non-200 answers from /healthz', async () => {
		await startInstallRestart()
		window.dispatchEvent(new Event('offline'))
		fetchMock.mockImplementation(() => Promise.resolve({ status: 502 } as Response))

		await tick(2000)

		expect(overlayElement()).not.toBeNull()
		expect(reloadPage).not.toHaveBeenCalled()
	})
})

describe('Settings, Plain restart: restarting', () => {
	it('shows the shorter copy and polls the same way', async () => {
		useTimers()
		await mountSettings({
			role: 'owner',
			status: upToDate({ can_apply: true }),
			restart: restarting(),
		})
		await press('Restart')
		await confirmRestart()

		const overlay = overlayElement()!
		expect(overlay.textContent).toContain('Restarting your site')
		expect(overlay.textContent).toContain(
			'This takes about 10 seconds. This page reloads on its own when the site is back.',
		)
		const before = healthCalls().length
		await tick(2000)
		expect(healthCalls().length - before).toBe(2)
	})
})

describe('Settings, Restarting, taking longer', () => {
	it('after 60 seconds without an answer shows Still restarting and a Reload page button', async () => {
		useTimers()
		await mountSettings({ role: 'owner', status: ready(), restart: restarting() })
		await press('Restart')
		await confirmRestart()
		silenceStatusReads()

		await tick(59000)
		expect(overlayElement()!.textContent).toContain('Installing version 2.3.0-beta')
		await tick(1000)

		const overlay = overlayElement()!
		expect(overlay.textContent).toContain('Still restarting')
		expect(overlay.textContent).toContain(
			'This is taking longer than usual. Keep this page open. It reloads on its own when the site is back, or you can reload it now.',
		)
		expect(overlay.textContent).toContain(' · ')
		expect(visibleButtonLabels(overlay)).toEqual(['Reload page'])

		await press('Reload page')

		expect(reloadPage).toHaveBeenCalledTimes(1)
		expect(overlayElement()).not.toBeNull()
		const before = healthCalls().length
		await tick(2000)
		expect(healthCalls().length - before).toBe(2)
	})
})

describe('Settings, the overlay ends when the site answers', () => {
	async function runOverlay(answers: Handler, healthy: boolean) {
		useTimers()
		await mountSettings({
			role: 'owner',
			status: sequence(ready()) as Handler,
			restart: restarting(),
		})
		await press('Restart')
		await confirmRestart()
		requestMock.mockImplementation((path: string) => {
			if (path === STATUS_PATH) {
				return answers()
			}
			if (path === PURGE_SETTINGS_PATH) {
				return Promise.resolve(DEFAULT_PURGE_SETTINGS)
			}
			throw new Error(`Unexpected request: ${path}`)
		})
		siteUp = healthy
		await tick(1000)
	}

	it('reloads once when /healthz is 200 and GET answers a later finished_at in another state', async () => {
		await runOverlay(() => Promise.resolve(updateSucceeded()), true)
		await tick(3000)

		expect(reloadPage).toHaveBeenCalledTimes(1)
	})

	it.each([
		{
			name: 'GET still says restarting',
			answer: () => Promise.resolve(restarting()),
			healthy: true,
		},
		{
			name: 'finished_at is null',
			answer: () => Promise.resolve(upToDate({ state: 'idle', finished_at: null })),
			healthy: true,
		},
		{
			name: 'finished_at is not later than the stored started_at',
			answer: () =>
				Promise.resolve(
					upToDate({
						state: 'succeeded',
						finished_at: RESTART_STARTED_AT,
						can_apply: true,
					}),
				),
			healthy: true,
		},
		{
			name: 'GET is rejected',
			answer: () => Promise.reject(new ApiError(502)),
			healthy: true,
		},
		{
			name: '/healthz answers but GET does not',
			answer: () => Promise.reject(new NetworkError()),
			healthy: true,
		},
		{
			name: 'GET answers but /healthz does not',
			answer: () => Promise.resolve(updateSucceeded()),
			healthy: false,
		},
	])('does not reload when $name', async ({ answer, healthy }) => {
		await runOverlay(answer, healthy)
		await tick(3000)

		expect(reloadPage).not.toHaveBeenCalled()
		expect(overlayElement()).not.toBeNull()
	})
})

describe('Settings, Update done (the tab that started it)', () => {
	it('clears the entry, focuses the Updates heading, announces the toast and shows the card', async () => {
		remember('update')

		await mountSettings({ role: 'owner', status: updateSucceeded() })

		expect(sessionStorage.length).toBe(0)
		expect(document.activeElement?.id).toBe('updates-h')
		expect(toastAdd).toHaveBeenCalledTimes(1)
		expect(toastAdd).toHaveBeenCalledWith(
			expect.objectContaining({
				color: 'success',
				icon: 'i-lucide-circle-check',
				title: 'Update installed',
				description: 'RenewCMS is now on version 2.3.0-beta.',
			}),
		)
		expect(cardText()).toContain("You're on version 2.3.0-beta")
		expect(cardText()).toContain('The update is installed and your site is running again.')
		expect(cardText()).toMatch(/Updated (today|yesterday|\d+ \w+ \d{4}) at \d\d:\d\d/)
		const link = Array.from(updatesCard().querySelectorAll('a')).find(
			(anchor) => anchor.textContent?.trim() === 'Read the release notes',
		)
		expect(link?.getAttribute('href')).toBe(RELEASE_URL)
		expect(cardButtons()).toEqual(['Check for updates', 'Restart'])
	})
})

describe('Settings, Update failed, rolled back (the tab that started it)', () => {
	it.each([{ error: 'rolled_back' as const }, { error: 'install' as const }])(
		'error $error: sticky error toast, focus, card copy and Try again posts download',
		async ({ error }) => {
			remember('update')
			await mountSettings({
				role: 'owner',
				status: rolledBack(error),
				download: downloading(),
			})

			expect(sessionStorage.length).toBe(0)
			expect(document.activeElement?.id).toBe('updates-h')
			expect(toastAdd).toHaveBeenCalledWith(
				expect.objectContaining({
					color: 'error',
					icon: 'i-lucide-circle-x',
					title: "The update didn't install",
					description: 'Your site is back on v2.2.0-beta.',
					duration: 0,
				}),
			)
			expect(cardText()).toContain("The update didn't install")
			expect(cardText()).toContain(
				'RenewCMS put the previous version back, so your site is running as before. Nothing was lost.',
			)
			expect(cardText()).toContain(
				'What to do next: try again in a few minutes. If it fails again, ask whoever manages your server to check the update.',
			)
			expect(cardButtons()).toEqual(['Try again'])

			await press('Try again')

			expect(callsTo(DOWNLOAD_PATH)).toHaveLength(1)
		},
	)
})

describe('Settings, Plain restart: done (the tab that started it)', () => {
	it('shows the Site restarted toast, moves focus and renders the Up to date card', async () => {
		remember('restart')

		await mountSettings({ role: 'owner', status: plainRestartDone() })

		expect(sessionStorage.length).toBe(0)
		expect(document.activeElement?.id).toBe('updates-h')
		expect(toastAdd).toHaveBeenCalledWith(
			expect.objectContaining({
				color: 'success',
				icon: 'i-lucide-circle-check',
				title: 'Site restarted',
				description: 'Your site is running again.',
			}),
		)
		expect(cardText()).toContain("You're up to date")
		expect(cardButtons()).toEqual(['Check for updates', 'Restart'])
	})
})

describe('A later visit shows the card with no toast and no focus move', () => {
	it.each([
		{ name: 'succeeded', status: updateSucceeded() },
		{ name: 'rolled_back', status: rolledBack('rolled_back') },
		{ name: 'install', status: rolledBack('install') },
		{ name: 'plain restart idle', status: plainRestartDone() },
	])('$name: no entry', async ({ status }) => {
		await mountSettings({ role: 'owner', status })

		expect(toastAdd).not.toHaveBeenCalled()
		expect(document.activeElement?.id).not.toBe('updates-h')
		expect(sessionStorage.length).toBe(0)
		expect(updatesCard()).not.toBeNull()
	})

	it.each([
		{ name: 'succeeded', status: updateSucceeded() },
		{ name: 'rolled_back', status: rolledBack('rolled_back') },
		{ name: 'plain restart idle', status: plainRestartDone() },
	])('$name: an entry not earlier than finished_at', async ({ status }) => {
		remember('update', RESTART_FINISHED_AT)

		await mountSettings({ role: 'owner', status })

		expect(toastAdd).not.toHaveBeenCalled()
		expect(document.activeElement?.id).not.toBe('updates-h')
		expect(remembered()).toEqual({ kind: 'update', started_at: RESTART_FINISHED_AT })
	})
})

describe("Settings, another owner's tab never takes the toast", () => {
	it('shows the overlay while restarting and the card afterwards, with no toast and no focus move', async () => {
		useTimers()
		siteUp = true
		await mountSettings({
			role: 'owner',
			status: sequence(restarting(), restarting(), updateSucceeded()),
		})

		expect(overlayElement()).not.toBeNull()
		expect(overlayElement()!.textContent).toContain('Restarting your site')
		expect(toastAdd).not.toHaveBeenCalled()

		await tick(3000)

		expect(reloadPage).toHaveBeenCalledTimes(1)
		expect(toastAdd).not.toHaveBeenCalled()
		expect(sessionStorage.length).toBe(0)
	})

	it('an owner tab with an entry still gets the toast and the focus', async () => {
		remember('update')

		await mountSettings({ role: 'owner', status: updateSucceeded() })

		expect(toastAdd).toHaveBeenCalledTimes(1)
		expect(document.activeElement?.id).toBe('updates-h')
	})

	it('an admin sees the admin view, no overlay and no poll', async () => {
		useTimers()
		await mountSettings({ role: 'admin', status: restarting() })

		expect(overlayElement()).toBeNull()
		expect(cardButtons()).toEqual([])
		const before = callsTo(STATUS_PATH).length
		await tick(3000)
		expect(callsTo(STATUS_PATH)).toHaveLength(before)
		expect(healthCalls()).toHaveLength(0)
	})
})

describe('Settings, a stale sessionStorage entry', () => {
	it.each([
		{ name: 'finished_at is null', status: upToDate({ can_apply: true }) },
		{
			name: 'finished_at is not later than the entry',
			status: updateSucceeded(),
			entryStart: RESTART_FINISHED_AT,
		},
	])('$name: no toast, no focus move, the entry stays', async ({ status, entryStart }) => {
		remember('update', entryStart ?? RESTART_STARTED_AT)

		await mountSettings({ role: 'owner', status })

		expect(toastAdd).not.toHaveBeenCalled()
		expect(document.activeElement?.id).not.toBe('updates-h')
		expect(remembered()).toEqual({
			kind: 'update',
			started_at: entryStart ?? RESTART_STARTED_AT,
		})
	})

	it('a new restart overwrites the entry', async () => {
		useTimers()
		remember('update', '2026-09-01T00:00:00Z')
		await mountSettings({
			role: 'owner',
			status: upToDate({ can_apply: true }),
			restart: startable({ state: 'restarting', started_at: '2026-09-30T10:00:00Z' }),
		})
		await press('Restart')
		await confirmRestart()

		expect(remembered()).toEqual({ kind: 'restart', started_at: '2026-09-30T10:00:00Z' })
	})
})

describe('Settings, 409 on Restart', () => {
	it('reloading downloading gives the info toast and the progress', async () => {
		useTimers()
		await mountSettings({
			role: 'owner',
			status: sequence(ready(), downloading()),
			restart: new ApiError(409),
		})
		await press('Restart')

		await confirmRestart()

		expect(dialogOpen()).toBe(false)
		expect(sessionStorage.length).toBe(0)
		expect(toastAdd).toHaveBeenCalledWith(
			expect.objectContaining({
				color: 'info',
				title: 'An update is already running',
				description: 'Another owner started it. Progress shows here.',
			}),
		)
		expect(cardText()).toContain('Downloading version 2.3.0-beta…')
	})

	it('reloading restarting gives the toast and the overlay', async () => {
		useTimers()
		await mountSettings({
			role: 'owner',
			status: sequence(ready(), restarting()),
			restart: new ApiError(409),
		})
		await press('Restart')

		await confirmRestart()

		expect(toastTitles()).toContain('An update is already running')
		expect(overlayElement()).not.toBeNull()
		expect(sessionStorage.length).toBe(0)
	})

	it('reloading can_apply false shows Not prepared and no toast', async () => {
		await mountSettings({
			role: 'owner',
			status: sequence(ready(), newerAvailable()),
			restart: new ApiError(409),
		})
		await press('Restart')

		await confirmRestart()

		expect(dialogOpen()).toBe(false)
		expect(toastAdd).not.toHaveBeenCalled()
		expect(cardText()).toContain("This site can't update itself from the browser yet.")
	})

	it.each([
		{
			name: 'ready (the kind did not match)',
			after: ready(),
			from: upToDate({ can_apply: true }),
		},
		{
			name: 'idle (the kind did not match)',
			after: upToDate({ can_apply: true }),
			from: ready(),
		},
	])('reloading $name shows that card and no toast', async ({ after, from }) => {
		await mountSettings({
			role: 'owner',
			status: sequence(from, after),
			restart: new ApiError(409),
		})
		await press('Restart')

		await confirmRestart()

		expect(toastAdd).not.toHaveBeenCalled()
		expect(sessionStorage.length).toBe(0)
		expect(dialogOpen()).toBe(false)
		expect(cardText()).toContain(
			after.state === 'ready' ? 'is ready to install' : "You're up to date",
		)
	})
})

describe('Settings, 403 and 401 on Restart', () => {
	it('403: the dialog closes, an error toast shows and the card reloads in the admin view', async () => {
		await mountSettings({
			role: 'owner',
			status: sequence(ready(), newerAvailable()),
			restart: new ApiError(403),
			meAfterRefresh: 'admin',
		})
		await press('Restart')

		await confirmRestart()

		expect(dialogOpen()).toBe(false)
		expect(toastAdd).toHaveBeenCalledWith(
			expect.objectContaining({
				color: 'error',
				title: 'Only the owner can do this',
				description: 'Ask the owner of this site to update RenewCMS.',
			}),
		)
		expect(cardText()).toContain('Only the owner can update RenewCMS.')
		expect(cardButtons()).toEqual([])
		expect(sessionStorage.length).toBe(0)
	})

	it('401: the dialog closes and no local copy shows', async () => {
		await mountSettings({ role: 'owner', status: ready(), restart: new ApiError(401) })
		await press('Restart')

		await confirmRestart()

		expect(dialogOpen()).toBe(false)
		expect(toastAdd).not.toHaveBeenCalled()
		expect(overlayElement()).toBeNull()
		expect(sessionStorage.length).toBe(0)
	})
})