import { act, type ReactNode } from 'react'
import { createRoot } from 'react-dom/client'
import { QueryClient, QueryClientProvider } from '@tanstack/react-query'
import type { PolicyRollout } from '@evofw/shared'
import { WebhooksSheet } from '@/components/webhooks-sheet'
import { AgentLabelsSheet } from '@/components/agents/agent-labels-sheet'
import { PolicyRolloutsSheet } from '@/components/rules/policy-rollouts-sheet'
import { AgentCredentialsSheet } from '@/components/agents/agent-credentials-sheet'
import { ensureAuthConfig, setToken, getToken } from '@/lib/auth'
import '@evofw/ui/globals.css'

if (!import.meta.env.DEV) throw new Error('Development checks only')
;(
  globalThis as { IS_REACT_ACT_ENVIRONMENT?: boolean }
).IS_REACT_ACT_ENVIRONMENT = true
const results = document.querySelector<HTMLPreElement>('#results')!
const metrics = document.querySelector<HTMLPreElement>('#metrics')!
const root = createRoot(document.querySelector<HTMLDivElement>('#fixture')!)
const qc = new QueryClient({
  defaultOptions: { queries: { retry: false }, mutations: { retry: false } },
})
const originalFetch = window.fetch
const originalToken = getToken()
const checks: string[] = []
const calls: { method: string; path: string; body: any }[] = []
const flush = () => new Promise((resolve) => setTimeout(resolve, 75))
function check(value: unknown, label: string) {
  if (!value) throw new Error(label)
  checks.push(`PASS ${label}`)
  results.textContent = checks.join('\n')
}
async function render(node: ReactNode) {
  await act(async () => {
    root.render(<QueryClientProvider client={qc}>{node}</QueryClientProvider>)
    await flush()
  })
  await act(async () => {
    await flush()
  })
}
async function click(text: string) {
  await act(async () => {
    const button = [
      ...document.querySelectorAll<HTMLButtonElement>('button'),
    ].find((item) => item.textContent?.trim() === text && !item.disabled)
    if (!button) throw new Error(`Button missing or disabled: ${text}`)
    button.click()
    await flush()
  })
}
function button(text: string) {
  return [...document.querySelectorAll<HTMLButtonElement>('button')].find(
    (item) => item.textContent?.trim() === text,
  )
}
async function input(id: string, value: string) {
  await act(async () => {
    const field = document.getElementById(id) as HTMLInputElement
    Object.getOwnPropertyDescriptor(
      HTMLInputElement.prototype,
      'value',
    )!.set!.call(field, value)
    field.dispatchEvent(new Event('input', { bubbles: true }))
    await flush()
  })
}
async function submit() {
  await act(async () => {
    document
      .querySelector<HTMLFormElement>('[data-slot="sheet-content"] form')!
      .requestSubmit()
    await flush()
  })
}
async function choose(id: string, label: string) {
  await act(async () => {
    const field = document.getElementById(id)!
    field.focus()
    field.dispatchEvent(new KeyboardEvent('keydown', { key: 'ArrowDown', bubbles: true }))
    await flush()
    await flush()
  })
  await act(async () => {
    const option = [
      ...document.querySelectorAll<HTMLElement>('[role="option"]'),
    ].find((item) => item.textContent?.trim() === label)
    if (!option) throw new Error(`Option missing: ${label}`)
    option.click()
    await flush()
  })
  await act(async () => {
    document
      .getElementById(id)
      ?.dispatchEvent(
        new KeyboardEvent('keydown', { key: 'Escape', bubbles: true }),
      )
    await flush()
  })
}
async function chooseSelect(index: number, label: string) {
  await act(async () => {
    document
      .querySelectorAll<HTMLElement>('[data-slot="select-trigger"]')
      [index].click()
    await flush()
  })
  await act(async () => {
    const option = [
      ...document.querySelectorAll<HTMLElement>('[role="option"]'),
    ].find((item) => item.textContent?.trim() === label)
    if (!option) throw new Error(`Select option missing: ${label}`)
    option.click()
    await flush()
  })
}
const writes = (path: string) =>
  calls.filter((call) => call.method !== 'GET' && call.path === path)
const fixtureToken = (permissions: string[]) =>
  `fixture.${btoa(JSON.stringify({ sub: 'fixture', permissions, apps: ['fw'] }))}.unsigned`
let configured = true,
  failHook = true,
  failLabels = true,
  pendingRotation = false
const endpoint = {
  id: 'hook',
  name: 'Existing endpoint',
  url: 'https://fixture.invalid/hook',
  events: ['agent.offline'],
  enabled: false,
  secret_configured: true,
  created_at: '',
  updated_at: '',
}
let rollout: PolicyRollout = {
  id: 'rollout',
  snapshot_id: 'snapshot',
  state: 'canary',
  version: 9,
  created_at: '2026-10-24',
  updated_at: '',
  targets: [
    {
      agent_id: 'target',
      is_canary: true,
      phase: 'candidate',
      desired_revision: 8,
      desired_hash: 'new',
      applied_revision: null,
      applied_hash: null,
      acknowledged: false,
      previous_desired_snapshot_id: 'previous',
    },
  ],
}
window.fetch = async (request, init) => {
  const url = String(request),
    path = new URL(url, location.origin).pathname,
    method = init?.method ?? 'GET'
  const body = init?.body ? JSON.parse(String(init.body)) : null
  calls.push({ method, path, body })
  metrics.textContent = JSON.stringify(
    calls.map(({ method, path }) => ({ method, path })),
    null,
    2,
  )
  if (path === '/api/auth/config') return Response.json({ required: true })
  if (path === '/api/v1/agents')
    return Response.json({
      items: [
        { id: 'target', name: 'Fixture target', hostname: 'fixture.invalid' },
      ],
    })
  if (path === '/api/v1/webhooks') {
    if (method === 'POST')
      return failHook
        ? Response.json(
            { error: { message: 'Fixture webhook failure' } },
            { status: 503 },
          )
        : Response.json(endpoint)
    return Response.json({
      items: [endpoint],
      configured,
      limits: { endpoints: 10, pending: 100 },
      queue: { pending: 1, dead: 2, dropped: 3 },
    })
  }
  if (path === '/api/v1/webhooks/hook') return Response.json(endpoint)
  if (path.endsWith('/deliveries'))
    return Response.json({ items: [], total: 0 })
  if (path === '/api/v1/agent-labels')
    return Response.json({
      items: [
        { id: 'label-a', name: 'Fixture label A', color: null, created_at: '' },
        { id: 'label-b', name: 'Fixture label B', color: null, created_at: '' },
      ],
      total: 2,
    })
  if (path.endsWith('/labels')) {
    if (method === 'PUT' && failLabels)
      return Response.json(
        { error: { message: 'Fixture label write rejected' } },
        { status: 409 },
      )
    return Response.json({ agent_id: 'target', label_ids: ['label-a'] })
  }
  if (path === '/api/v1/policy-sets')
    return Response.json({ items: [{ id: 'set', name: 'Fixture set' }] })
  if (path.endsWith('/preview-assignment'))
    return Response.json({
      mode: body.mode,
      items: [
        {
          agent_id: 'target',
          generation: 7,
          previous_set_ids: [],
          set_ids: ['set'],
          changed: true,
        },
      ],
      total: 1,
    })
  if (path.endsWith('/assign-policy-sets'))
    return Response.json({ items: [], affected_agent_ids: ['target'] })
  if (path === '/api/v1/policies/snapshots')
    return Response.json({
      items: [{ id: 'snapshot', name: 'Fixture snapshot' }],
    })
  if (path.endsWith('/diff'))
    return Response.json({
      snapshot_id: 'snapshot',
      items: [
        {
          agent_id: 'target',
          expected_generation: 7,
          before_hash: 'old',
          candidate_hash: 'new',
          added: 1,
          removed: 0,
          examples: [],
          truncated: false,
          default_action_changed: false,
          port_rules_changed: false,
          conflict: null,
        },
      ],
    })
  if (path === '/api/v1/policies/rollouts')
    return method === 'POST'
      ? Response.json(rollout)
      : Response.json({ items: [rollout] })
  if (path === '/api/v1/policies/rollouts/rollout')
    return Response.json(rollout)
  if (
    path.endsWith('/confirm') ||
    path.endsWith('/rollback') ||
    path.endsWith('/release')
  )
    return Response.json({ ok: true })
  if (path.endsWith('/token-rotation')) {
    if (method === 'POST') {
      pendingRotation = true
      return Response.json(
        {
          request_id: '00000000-0000-4000-8000-000000000001',
          expires_at: '2099-01-01T00:00:00Z',
        },
        { status: 202 },
      )
    }
    return Response.json({
      agent_id: 'target',
      supported: true,
      client_version: '1.0.0',
      agent_status: 'approved',
      rotation: pendingRotation
        ? {
            request_id: '00000000-0000-4000-8000-000000000001',
            expires_at: '2099-01-01T00:00:00Z',
          }
        : null,
      completed_rotation: null,
    })
  }
  if (path === '/api/v1/install-links')
    return Response.json({
      items: [
        {
          id: 'install',
          slug: 'not-rendered',
          client_name: 'Fixture target',
          platform: 'linux',
          agent_id: 'target',
          created_at: '2026-10-24',
          expires_at: '2026-10-25',
          consumed_at: '2026-10-24',
          revoked_at: null,
          use_count: 1,
          urls: { by_id: 'not-rendered', by_slug: 'not-rendered' },
          curl: {
            by_id: 'credential-must-not-render',
            by_slug: 'credential-must-not-render',
          },
        },
      ],
      total: 1,
    })
  throw new Error(`Unexpected fixture request ${method} ${path}`)
}
try {
  await ensureAuthConfig()
  setToken(
    fixtureToken(['fw:agents:write', 'fw:policies:write', 'fw:settings:admin']),
  )
  await render(<WebhooksSheet open onOpenChange={() => {}} />)
  check(
    document.body.textContent?.includes('1 ожидают') &&
      document.body.textContent.includes('2 исчерпали'),
    'webhook health keeps pending/dead/dropped distinct',
  )
  await input('webhook-name', 'Draft hook')
  await input('webhook-url', 'https://fixture.invalid/new')
  await input('webhook-secret', 'short')
  await submit()
  check(
    writes('/api/v1/webhooks').length === 0 &&
      document
        .getElementById('webhook-secret')
        ?.getAttribute('aria-invalid') === 'true',
    'short webhook secret blocked inline before POST',
  )
  await input('webhook-secret', 'fixture-only-never-delivered-0000000000')
  await submit()
  check(
    writes('/api/v1/webhooks').length === 1 &&
      (document.getElementById('webhook-name') as HTMLInputElement).value ===
        'Draft hook',
    'failed webhook write preserves dirty draft',
  )
  failHook = false
  await submit()
  check(
    (document.getElementById('webhook-secret') as HTMLInputElement).value ===
      '' && writes('/api/v1/webhooks')[1].body.enabled === false,
    'successful create clears write-only secret and defaults disabled',
  )
  await click('Изменить')
  await input('webhook-name', 'Renamed hook')
  await submit()
  check(
    writes('/api/v1/webhooks/hook')[0]?.body.name === 'Renamed hook' &&
      !('secret' in writes('/api/v1/webhooks/hook')[0].body),
    'edit omits blank secret instead of clearing existing secret',
  )
  configured = false
  await act(async () => {
    await qc.invalidateQueries({ queryKey: ['webhooks'] })
    await flush()
  })
  check(
    button('Добавить webhook')?.disabled &&
      document.body.textContent?.includes('Шифрование webhook не настроено'),
    'missing encryption key disables writes with explanation',
  )
  await render(null)
  qc.clear()
  setToken(fixtureToken(['fw:agents:read']))
  const previousCalls = calls.length
  await render(<WebhooksSheet key="denied" open onOpenChange={() => {}} />)
  check(
    calls.length === previousCalls &&
      document.body.textContent?.includes('Требуются права администратора'),
    'non-admin webhook panel fetches and writes nothing',
  )

  await render(null)
  qc.clear()
  setToken(fixtureToken(['fw:agents:write', 'fw:policies:write']))
  await render(
    <AgentLabelsSheet agentId="target" open onOpenChange={() => {}} />,
  )
  await choose('agent-label-ids', 'Fixture label B')
  await act(async () => {
    await qc.invalidateQueries({ queryKey: ['agents', 'target', 'labels'] })
    await flush()
  })
  check(
    document.body.textContent?.includes('Fixture label B'),
    'agent labels retain dirty selection across refetch',
  )
  await click('Сохранить метки агента')
  check(
    writes('/api/v1/agents/target/labels')[0]?.body.label_ids.includes(
      'label-b',
    ) && !button('Сохранить метки агента')?.disabled,
    'rejected labels write preserves editable selection',
  )
  await render(null)
  qc.clear()
  await render(<AgentLabelsSheet open onOpenChange={() => {}} />)
  await choose('group-label-selector', 'Fixture label A')
  await choose('group-sets', 'Fixture set')
  await click('Предпросмотр назначения')
  check(
    writes('/api/v1/agent-labels/assign-policy-sets').length === 0 &&
      document.body.textContent?.includes('Fixture target'),
    'group preview resolves named agents without auto-assignment',
  )
  await click('Применить показанное назначение')
  check(
    writes('/api/v1/agent-labels/assign-policy-sets').length === 0,
    'group write requires explicit confirmation',
  )
  await click('Подтвердить')
  check(
    JSON.stringify(
      writes('/api/v1/agent-labels/assign-policy-sets')[0]?.body.expected,
    ) === JSON.stringify([{ agent_id: 'target', generation: 7 }]),
    'group assignment sends exact preview CAS generations',
  )

  await render(null)
  qc.clear()
  await render(<PolicyRolloutsSheet open onOpenChange={() => {}} />)
  await chooseSelect(0, 'Fixture snapshot')
  await choose('rollout-targets', 'Fixture targetfixture.invalid')
  check(
    button('Запустить canary')?.disabled,
    'canary start gated on prior diff',
  )
  await click('Предпросмотр diff')
  await choose('rollout-canaries', 'Fixture targetfixture.invalid')
  await click('Запустить canary')
  check(
    writes('/api/v1/policies/rollouts').length === 0,
    'canary publication requires separate confirmation',
  )
  await click('Подтвердить')
  check(
    writes('/api/v1/policies/rollouts')[0]?.body.targets[0]
      .expected_generation === 7 &&
      button('Подтвердить после ACK')?.disabled &&
      document.body.textContent?.includes('Ожидается ACK'),
    'canary uses diff generation and pending ACK never enables confirmation',
  )
  rollout = {
    ...rollout,
    targets: [
      {
        ...rollout.targets[0],
        acknowledged: true,
        applied_revision: 8,
        applied_hash: 'new',
      },
    ],
  }
  await act(async () => {
    await qc.invalidateQueries({ queryKey: ['policy-rollouts'] })
    await flush()
  })
  check(
    !button('Подтвердить после ACK')?.disabled &&
      writes('/api/v1/policies/rollouts/rollout/confirm').length === 0,
    'fresh canary ACK enables but does not auto-confirm',
  )
  await click('Подтвердить после ACK')
  await click('Подтвердить')
  check(
    writes('/api/v1/policies/rollouts/rollout/confirm')[0]?.body
      .expected_version === 9,
    'rollout transition sends exact displayed version',
  )
  await click('Снять pin')
  check(
    document.body.textContent?.includes('живая политика будет проверена') &&
      writes('/api/v1/agents/target/policy-pin/release').length === 0,
    'pin release warns about validated live-policy resume before write',
  )
  await click('Отмена')

  await render(null)
  qc.clear()
  await render(
    <AgentCredentialsSheet agentId="target" open onOpenChange={() => {}} />,
  )
  check(
    document.body.textContent?.includes('Использована') &&
      !document.body.textContent.includes('credential-must-not-render'),
    'credential panel displays link lifecycle without installation credentials',
  )
  await click('Запросить ротацию')
  check(
    writes('/api/v1/agents/target/token-rotation').length === 0,
    'rotation requires explicit request confirmation',
  )
  await click('Запросить')
  check(
    pendingRotation &&
      document.body.textContent?.includes('Ожидается обмен ключа агентом') &&
      button('Запросить ротацию')?.disabled,
    'rotation request remains pending until agent exchange',
  )
  results.dataset.status = 'passed'
} catch (error) {
  results.textContent = `${checks.join('\n')}\nFAIL ${error instanceof Error ? error.stack : String(error)}`
  results.dataset.status = 'failed'
} finally {
  if (results.dataset.status === 'passed') {
    await act(async () => root.unmount())
    qc.clear()
    window.fetch = originalFetch
  }
  if (originalToken) setToken(originalToken)
  else localStorage.removeItem('fw_auth_token')
}