import { afterEach, 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 { useApi, type UserRole } from '@/composables/useApi'
import type { UpdateStatus } from '@/composables/useUpdate'
import { useSessionStore } from '@/stores/session'
import SettingsView from '../SettingsView.vue'
import {
	RUNNING_VERSION,
	STATUS_PATH,
	findButton,
	newerAvailable,
	stubClipboard,
	upToDate,
	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(),
	}
})

const CONTAINER_COMMAND = 'docker compose pull && docker compose up -d'

let wrapper: VueWrapper | null = null

async function mountSettings(role: UserRole, status: UpdateStatus) {
	setActivePinia(createPinia())
	const session = useSessionStore()
	session.session = { verified: true, username: 'marta', id: 1, role }
	session.status = 'ready'
	const request = vi.fn((path: string) => {
		if (path === '/v1/settings/') {
			return Promise.resolve({ version: RUNNING_VERSION })
		}
		if (path === STATUS_PATH) {
			return Promise.resolve(status)
		}
		if (path === PURGE_SETTINGS_PATH) {
			return Promise.resolve(DEFAULT_PURGE_SETTINGS)
		}
		throw new Error(`Unexpected request: ${path}`)
	})
	vi.mocked(useApi).mockReturnValue({
		getMe: vi.fn().mockResolvedValue({
			verified: true,
			username: 'marta',
			id: 1,
			displayName: '',
			role,
		}),
		request,
	})
	await router.push('/settings')
	wrapper = mount(SettingsView, {
		attachTo: document.body,
		global: { plugins: [router, uiPlugin] },
	})
	await flushPromises()
}

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

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

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

describe('Settings, owner, container, update available', () => {
	it('shows the pull-image guidance, the command, Copy and the docs link, with no other button', async () => {
		await mountSettings('owner', newerAvailable({ container: true }))

		expect(cardText()).toContain('Version 2.3.0-beta is available')
		expect(cardText()).toContain(
			'You have v2.2.0-beta. This site runs in Docker, so it updates by pulling a new image. Run the commands below on the server.',
		)
		expect(updatesCard().querySelector('code')?.textContent).toBe(CONTAINER_COMMAND)
		const link = Array.from(updatesCard().querySelectorAll('a')).find(
			(anchor) => anchor.textContent?.trim() === 'How to update',
		)!
		expect(link.getAttribute('href')).toBe(
			'https://git.example/fsylvain/RenewCMS/src/branch/main/docs/docker.md',
		)
		expect(visibleButtonLabels(updatesCard())).toEqual(["What's new in 2.3.0-beta", 'Copy'])
		expect(cardText()).not.toContain('renewcms enable-browser-updates')
		expect(cardText()).not.toContain('They run this once on the server')
		expect(cardText()).not.toContain("can't update itself from the browser")
	})

	it('copies the container command and reads Copied for 2 s', async () => {
		const writeText = stubClipboard()
		vi.useFakeTimers({ toFake: ['setTimeout', 'clearTimeout'] })
		await mountSettings('owner', newerAvailable({ container: true }))

		findButton('Copy')!.click()
		await flushPromises()

		expect(writeText).toHaveBeenCalledWith(CONTAINER_COMMAND)
		expect(findButton('Copied')!.getAttribute('aria-live')).toBe('polite')

		await vi.advanceTimersByTimeAsync(2000)
		expect(findButton('Copy')?.textContent?.trim()).toBe('Copy')
		expect(findButton('Copied')).toBeUndefined()
	})
})

describe('Settings, owner, container, up to date', () => {
	it("shows You're up to date with only Check for updates and no container hint", async () => {
		await mountSettings('owner', upToDate({ container: true }))

		expect(cardText()).toContain("You're up to date")
		expect(visibleButtonLabels(updatesCard())).toEqual(['Check for updates'])
		expect(cardText()).not.toContain('Docker')
		expect(updatesCard().querySelector('code')).toBeNull()
	})
})

describe('Settings, admin, container', () => {
	it('keeps the admin view with no command block', async () => {
		await mountSettings('admin', newerAvailable({ container: true }))

		expect(cardText()).toContain('Only the owner can update RenewCMS.')
		expect(cardText()).not.toContain('Docker')
		expect(updatesCard().querySelector('code')).toBeNull()
		expect(visibleButtonLabels(updatesCard())).toEqual([])
	})
})

describe('Settings, owner, not container, not prepared', () => {
	it('still shows the enable-browser-updates command', async () => {
		await mountSettings('owner', newerAvailable({ container: false }))

		expect(updatesCard().querySelector('code')?.textContent).toBe(
			'renewcms enable-browser-updates',
		)
		expect(cardText()).toContain("This site can't update itself from the browser yet.")
		expect(cardText()).not.toContain('Docker')
	})
})