import {
  createElement,
  Fragment,
  useCallback,
  useState,
  type Dispatch,
  type SetStateAction
} from 'react'
import { Text } from 'react-native'
import { act, create, type ReactTestRenderer } from 'react-test-renderer'
import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest'
import type { RuntimeWorktreeAgentRow } from '../../../src/shared/runtime-types'
import { WorktreeAgentRow } from './WorktreeAgentRow'
import type { Worktree } from '../worktree/workspace-list-types'
import { WorktreeListRow } from './WorktreeListRow'
import {
  DEFAULT_WORKTREE_CARD_PROPERTIES,
  getWorktreeCardDetails,
  type WorktreeCardDetails
} from '../../../src/shared/worktree/card-properties'
import { findAllByHostType } from '../test-support/react-test-renderer-host-nodes'

const { agentSpinnerRender, agentStateDotRender, metaGlyphsRender } = vi.hoisted(() => ({
  agentSpinnerRender: vi.fn(),
  agentStateDotRender: vi.fn(),
  metaGlyphsRender: vi.fn()
}))

vi.mock('react-native', () => ({
  Pressable: 'Pressable',
  StyleSheet: { create: <T>(styles: T) => styles },
  Text: 'Text',
  View: 'View'
}))

vi.mock('lucide-react-native', () => ({
  Bell: 'Bell',
  ChevronDown: 'ChevronDown',
  ChevronRight: 'ChevronRight',
  GitBranch: 'GitBranch',
  GitPullRequest: 'GitPullRequest',
  Monitor: 'Monitor',
  Server: 'Server'
}))

vi.mock('../platform/haptics', () => ({ triggerMediumImpact: vi.fn() }))
vi.mock('./AgentSpinner', () => ({
  AgentSpinner: (props: unknown) => {
    agentSpinnerRender(props)
    return null
  }
}))
vi.mock('./AgentStateDot', () => ({
  AgentStateDot: (props: unknown) => {
    agentStateDotRender(props)
    return null
  }
}))
vi.mock('./MobileAgentIcon', () => ({ MobileAgentIcon: () => null }))
vi.mock('./MobileRepoIcon', () => ({ MobileRepoIcon: () => null }))
vi.mock('./WorktreeAgentList', () => ({ WorktreeAgentList: () => null }))
vi.mock('./WorktreeMetaGlyphs', () => ({
  prStateColor: () => '#000000',
  WorktreeMetaGlyphs: (props: unknown) => {
    metaGlyphsRender(props)
    return null
  }
}))

type TestItem = Worktree & { status: NonNullable<Worktree['status']> }

const stableRepoIcon = { type: 'emoji', emoji: 'o' } as const
let updateSibling: Dispatch<SetStateAction<number>> = () => undefined

const detailsFor = (compactWorktreeCards: boolean, newCardStyle: boolean) =>
  getWorktreeCardDetails(DEFAULT_WORKTREE_CARD_PROPERTIES, { compactWorktreeCards, newCardStyle })
const ALL_DETAILS = detailsFor(false, false)
const COMPACT = detailsFor(true, false)
const NEW_CARD_STYLE = detailsFor(false, true)

function ListRowHarness({
  item,
  now,
  cardDetails = ALL_DETAILS,
  hideRepo = false
}: {
  item: TestItem
  now: number
  cardDetails?: WorktreeCardDetails
  hideRepo?: boolean
}) {
  const [sibling, setSibling] = useState(0)
  updateSibling = setSibling
  const onPress = useCallback(() => undefined, [])
  const onLongPress = useCallback(() => undefined, [])
  const onToggleLineage = useCallback(() => undefined, [])

  // Rerender harness with unchanged row props to exercise React.memo bailout.
  return createElement(
    Fragment,
    null,
    createElement(Text, null, sibling),
    createElement(WorktreeListRow, {
      item,
      isReadOnly: false,
      now,
      repoColor: '#000000',
      repoIcon: stableRepoIcon,
      hideRepo,
      cardDetails,
      agentActivityDisplayMode: 'compact',
      status: item.status,
      onPress,
      onLongPress,
      onToggleLineage
    })
  )
}

function agent(overrides: Partial<RuntimeWorktreeAgentRow> = {}): RuntimeWorktreeAgentRow {
  return {
    paneKey: 'agent-1',
    parentPaneKey: null,
    state: 'working',
    agentType: null,
    prompt: 'Fix the list',
    taskTitle: null,
    displayName: null,
    lastAssistantMessage: null,
    toolName: null,
    toolInput: null,
    interrupted: false,
    stateStartedAt: 1_000,
    updatedAt: 1_000,
    ...overrides
  }
}

const baseItem: TestItem = {
  worktreeId: 'worktree-1',
  repoId: 'repo-1',
  repo: 'orca',
  path: 'mobile-list',
  hasAttachedPty: true,
  isPinned: false,
  branch: 'feature/mobile-list',
  displayName: 'mobile-list',
  liveTerminalCount: 1,
  unread: false,
  linkedPR: null,
  agents: [agent()],
  status: 'active',
  lastOutputAt: 1_000
}

describe('memoized worktree rows', () => {
  let renderer: ReactTestRenderer | null = null

  beforeEach(() => {
    agentSpinnerRender.mockClear()
    agentStateDotRender.mockClear()
    metaGlyphsRender.mockClear()
  })

  afterEach(() => {
    act(() => renderer?.unmount())
    renderer = null
  })

  it.each([false, true])('names the owner once (Project mode: %s)', async (hideRepo) => {
    await act(async () => {
      renderer = create(
        createElement(WorktreeListRow, {
          item: { ...baseItem, showProjectName: true, lineageDepth: 1 },
          isReadOnly: false,
          now: 2_000,
          repoColor: '#000000',
          hideRepo,
          cardDetails: ALL_DETAILS,
          agentActivityDisplayMode: 'compact',
          status: 'active',
          onPress: () => undefined
        })
      )
    })
    const ownerNames = renderer!.root
      .findAllByType(Text)
      .map((node) => node.props.children)
      .filter((text) => text === baseItem.repo)
    expect(ownerNames).toEqual([baseItem.repo])
  })

  it('skips an unrelated parent render but updates for live item fields and time', async () => {
    await act(async () => {
      renderer = create(createElement(ListRowHarness, { item: baseItem, now: 2_000 }))
    })
    expect(agentSpinnerRender).toHaveBeenCalledTimes(1)

    await act(async () => updateSibling((value) => value + 1))
    expect(agentSpinnerRender).toHaveBeenCalledTimes(1)

    let expectedRenders = 1
    const liveUpdates: TestItem[] = [
      { ...baseItem, unread: true },
      { ...baseItem, lastOutputAt: 2_000 },
      { ...baseItem, agents: [agent({ state: 'waiting', updatedAt: 2_000 })] },
      { ...baseItem, status: 'working' }
    ]
    for (const liveUpdate of liveUpdates) {
      await act(async () =>
        renderer!.update(createElement(ListRowHarness, { item: liveUpdate, now: 2_000 }))
      )
      expect(agentSpinnerRender).toHaveBeenCalledTimes(++expectedRenders)
      await act(async () =>
        renderer!.update(createElement(ListRowHarness, { item: baseItem, now: 2_000 }))
      )
      expect(agentSpinnerRender).toHaveBeenCalledTimes(++expectedRenders)
    }

    await act(async () =>
      renderer!.update(createElement(ListRowHarness, { item: baseItem, now: 32_000 }))
    )
    expect(agentSpinnerRender).toHaveBeenCalledTimes(++expectedRenders)
  })

  it('skips a value-equal item and re-renders for time, callbacks and nested agent fields', async () => {
    const onPress = () => undefined
    const row = (item: TestItem, overrides: { now?: number; onPress?: () => void } = {}) =>
      createElement(WorktreeListRow, {
        item,
        isReadOnly: false,
        now: overrides.now ?? 2_000,
        repoColor: '#000000',
        repoIcon: { type: 'emoji', emoji: 'o' },
        // A fresh but equal details object each render, as a parent re-render makes.
        cardDetails: { ...ALL_DETAILS },
        agentActivityDisplayMode: 'compact',
        status: item.status,
        onPress: overrides.onPress ?? onPress
      })
    await act(async () => {
      renderer = create(row(baseItem))
    })
    expect(agentSpinnerRender).toHaveBeenCalledTimes(1)

    // A fresh parse of the same row, with a fresh repo icon object, is not a change.
    await act(async () => renderer!.update(row(structuredClone(baseItem))))
    expect(agentSpinnerRender).toHaveBeenCalledTimes(1)

    await act(async () => renderer!.update(row(baseItem, { now: 32_000 })))
    expect(agentSpinnerRender).toHaveBeenCalledTimes(2)

    const nestedChange = structuredClone(baseItem)
    nestedChange.agents![0]!.lastAssistantMessage = 'Tests pass'
    await act(async () => renderer!.update(row(nestedChange, { now: 32_000 })))
    expect(agentSpinnerRender).toHaveBeenCalledTimes(3)

    await act(async () =>
      renderer!.update(row(nestedChange, { now: 32_000, onPress: () => undefined }))
    )
    expect(agentSpinnerRender).toHaveBeenCalledTimes(4)
  })

  it('memoizes agent rows without hiding agent updates', async () => {
    const firstAgent = agent()
    await act(async () => {
      renderer = create(
        createElement(WorktreeAgentRow, {
          agent: firstAgent,
          depth: 0,
          now: 2_000,
          unvisited: false
        })
      )
    })
    expect(agentStateDotRender).toHaveBeenCalledTimes(1)

    await act(async () => {
      renderer!.update(
        createElement(WorktreeAgentRow, {
          agent: firstAgent,
          depth: 0,
          now: 2_000,
          unvisited: false
        })
      )
    })
    expect(agentStateDotRender).toHaveBeenCalledTimes(1)

    await act(async () => {
      renderer!.update(
        createElement(WorktreeAgentRow, {
          agent: agent({ state: 'working', workingMode: 'monitoring', updatedAt: 2_000 }),
          depth: 0,
          now: 2_000,
          unvisited: false
        })
      )
    })
    expect(agentStateDotRender).toHaveBeenCalledTimes(2)
    expect(agentStateDotRender).toHaveBeenLastCalledWith({ state: 'monitoring' })
  })

  it('shows how long a silent agent row has gone without an update, keeping its task', async () => {
    const minute = 60_000
    await act(async () => {
      renderer = create(
        createElement(WorktreeAgentRow, {
          agent: agent({ stateStartedAt: 0, updatedAt: 200 * minute, hasLivePty: true }),
          depth: 0,
          now: 240 * minute,
          unvisited: false
        })
      )
    })
    const texts = renderer!.root
      .findAll((node) => String(node.type) === 'Text')
      .map((node) => node.props.children)
    expect(texts).toEqual(expect.arrayContaining(['Fix the list', 'No update in 40m']))
  })

  it('passes workspace monitoring mode to the status indicator', async () => {
    await act(async () => {
      renderer = create(
        createElement(ListRowHarness, {
          item: { ...baseItem, status: 'working', workingMode: 'monitoring' },
          now: 2_000
        })
      )
    })

    expect(agentSpinnerRender).toHaveBeenLastCalledWith({
      status: 'working',
      workingMode: 'monitoring'
    })
  })

  it('names the host with a glyph that matches the host kind', async () => {
    const textNodes = (): string[] =>
      findAllByHostType(renderer!.root, 'Text')
        .flatMap((node) => node.props.children)
        .filter((child): child is string => typeof child === 'string')

    await act(async () => {
      renderer = create(
        createElement(ListRowHarness, {
          item: { ...baseItem, hostId: 'ssh:ssh-1', hostContextLabel: 'openclaw' },
          now: 2_000
        })
      )
    })
    expect(textNodes()).toContain('openclaw')
    expect(textNodes().some((text) => text.includes('Disconnected'))).toBe(false)
    expect(findAllByHostType(renderer!.root, 'Server')).toHaveLength(1)

    await act(async () =>
      renderer!.update(
        createElement(ListRowHarness, {
          item: {
            ...baseItem,
            hostId: 'ssh:ssh-1',
            hostContextLabel: 'openclaw',
            hostContextHealthLabel: 'Disconnected'
          },
          now: 2_000
        })
      )
    )
    // Separate nodes: the name truncates while the health word stays whole.
    expect(textNodes()).toEqual(expect.arrayContaining(['openclaw', '· Disconnected']))
    const healthText = findAllByHostType(renderer!.root, 'Text').find(
      (node) => node.props.children === '· Disconnected'
    )
    expect([healthText?.props.style].flat()).toContainEqual({ flexShrink: 0 })
    const announcedBadges = renderer!.root.findAll(
      (node) => node.props.accessibilityLabel === 'openclaw, Disconnected'
    )
    expect(announcedBadges).toHaveLength(1)
    expect(findAllByHostType(renderer!.root, 'Monitor')).toHaveLength(0)

    await act(async () =>
      renderer!.update(
        createElement(ListRowHarness, {
          item: {
            ...baseItem,
            hostId: 'ssh:ssh-1',
            hostContextHealthLabel: 'Disconnected'
          },
          now: 2_000
        })
      )
    )
    expect(textNodes()).toContain('Disconnected')
    expect(textNodes()).not.toContain('openclaw')
    expect(textNodes()).not.toContain('· Disconnected')
    expect(renderer!.root.findAll((node) => String(node.type) === 'Server')).toHaveLength(1)
    expect(
      renderer!.root.findAll((node) => node.props.accessibilityLabel === 'Disconnected')
    ).toHaveLength(1)

    await act(async () =>
      renderer!.update(
        createElement(ListRowHarness, {
          item: { ...baseItem, hostContextLabel: 'Local Mac' },
          now: 2_000
        })
      )
    )
    expect(textNodes()).toContain('Local Mac')
    expect(findAllByHostType(renderer!.root, 'Monitor')).toHaveLength(1)

    await act(async () =>
      renderer!.update(createElement(ListRowHarness, { item: baseItem, now: 2_000 }))
    )
    expect(textNodes()).not.toContain('Local Mac')
    expect(findAllByHostType(renderer!.root, 'Monitor')).toHaveLength(0)
  })

  it("leaves out the PR, host and agents the desktop's card properties turn off", async () => {
    const item: TestItem = {
      ...baseItem,
      hostId: 'ssh:ssh-1',
      hostContextLabel: 'openclaw',
      linkedPR: { number: 7, state: 'open' }
    }
    const shown = () => ({
      pr: renderer!.root.findAll((node) => String(node.type) === 'GitPullRequest').length,
      host: renderer!.root.findAll((node) => String(node.type) === 'Server').length
    })
    await act(async () => {
      renderer = create(createElement(ListRowHarness, { item, now: 2_000 }))
    })
    expect(shown()).toEqual({ pr: 1, host: 1 })

    await act(async () =>
      renderer!.update(
        createElement(ListRowHarness, {
          item,
          now: 2_000,
          cardDetails: getWorktreeCardDetails(['status', 'unread'], {
            compactWorktreeCards: false,
            newCardStyle: false
          })
        })
      )
    )
    expect(shown()).toEqual({ pr: 0, host: 0 })
  })

  describe('Compact', () => {
    const texts = (): string[] =>
      findAllByHostType(renderer!.root, 'Text')
        .flatMap((node) => node.props.children)
        .filter((child): child is string => typeof child === 'string')
    const repoChips = () =>
      renderer!.root.findAll((node) => node.props.accessibilityLabel === 'Project orca')
    const render = async (
      props: Partial<{
        item: TestItem
        cardDetails: WorktreeCardDetails
        hideRepo: boolean
      }> = {}
    ) => {
      const element = createElement(ListRowHarness, { item: baseItem, now: 2_000, ...props })
      await act(async () => {
        if (renderer) {
          renderer.update(element)
        } else {
          renderer = create(element)
        }
      })
    }

    it('moves the repo into a title chip and drops the branch line, as the desktop does', async () => {
      await render()
      expect(texts()).toEqual(expect.arrayContaining(['orca', 'feature/mobile-list']))
      expect(repoChips()).toHaveLength(0)

      await render({ cardDetails: COMPACT })
      expect(texts()).not.toContain('orca')
      expect(texts()).not.toContain('feature/mobile-list')
      expect(texts()).toContain('mobile-list')
      expect(repoChips()).toHaveLength(1)
    })

    it('drops the host and child badges with the meta row, keeping a remote host glyph', async () => {
      const item: TestItem = {
        ...baseItem,
        hostId: 'ssh:ssh-1',
        hostContextLabel: 'openclaw',
        lineageDepth: 1
      }
      await render({ item })
      expect(texts()).toEqual(expect.arrayContaining(['openclaw', 'Child']))

      await render({ item, cardDetails: COMPACT })
      expect(texts()).not.toContain('openclaw')
      expect(texts()).not.toContain('Child')
      const glyphs = () => renderer!.root.findAll((node) => String(node.type) === 'Server')
      expect(glyphs()).toHaveLength(1)
      expect(
        renderer!.root.findAll((node) => node.props.accessibilityLabel === 'openclaw')
      ).toHaveLength(1)

      // A remote row with no host label still gets the glyph, named generically.
      await render({ item: { ...item, hostContextLabel: undefined }, cardDetails: COMPACT })
      expect(glyphs()).toHaveLength(1)
      expect(
        renderer!.root.findAll((node) => node.props.accessibilityLabel === 'Remote host')
      ).toHaveLength(1)

      // An older host's row carries only the resolved host the label pass stamped.
      await render({
        item: { ...item, hostId: undefined, hostContextHostId: 'ssh:ssh-1' },
        cardDetails: COMPACT
      })
      expect(glyphs()).toHaveLength(1)

      // The new card style keeps the host badge in its meta row: one server icon, the badge's.
      await render({ item, cardDetails: NEW_CARD_STYLE })
      expect(glyphs()).toHaveLength(1)
      expect(texts()).toContain('openclaw')

      // Local rows get no glyph, as the desktop shows none for local projects.
      await render({ item: { ...item, hostId: 'local' }, cardDetails: COMPACT })
      expect(glyphs()).toHaveLength(0)
      expect(renderer!.root.findAll((node) => String(node.type) === 'Monitor')).toHaveLength(0)
    })

    it('leaves the chip out when the list is grouped by repo or the row is a folder', async () => {
      await render({ cardDetails: COMPACT, hideRepo: true })
      expect(repoChips()).toHaveLength(0)

      await render({
        cardDetails: COMPACT,
        item: { ...baseItem, workspaceKind: 'folder-workspace' }
      })
      expect(repoChips()).toHaveLength(0)
      expect(texts()).toContain('Folder')
    })

    it('keeps the PR badge next to the repo chip', async () => {
      await render({
        cardDetails: COMPACT,
        item: { ...baseItem, linkedPR: { number: 7, state: 'open' } }
      })
      expect(repoChips()).toHaveLength(1)
      expect(renderer!.root.findAll((node) => String(node.type) === 'GitPullRequest')).toHaveLength(
        1
      )
      const badgeTexts = findAllByHostType(renderer!.root, 'Text').map((node) =>
        [node.props.children].flat().join('')
      )
      expect(badgeTexts).toContain('#7')
    })

    it('uses the chip under the new card style but keeps the branch line', async () => {
      await render({ cardDetails: NEW_CARD_STYLE })
      expect(repoChips()).toHaveLength(1)
      expect(texts()).not.toContain('orca')
      expect(texts()).toContain('feature/mobile-list')
    })
  })

  it('passes the Jira, automation and CLI facts the card properties show', async () => {
    const item: TestItem = {
      ...baseItem,
      automationCreated: true,
      cliCreated: true,
      linkedItems: [{ provider: 'jira', type: 'issue', number: 12, jiraIdentifier: 'ORCA-12' }]
    }
    const lastPresence = () => metaGlyphsRender.mock.lastCall?.[0].presence
    await act(async () => {
      renderer = create(createElement(ListRowHarness, { item, now: 2_000 }))
    })
    expect(lastPresence()).toMatchObject({ jira: true, automation: true, cli: true })

    await act(async () =>
      renderer!.update(
        createElement(ListRowHarness, {
          item,
          now: 2_000,
          cardDetails: getWorktreeCardDetails(['status', 'unread'], {
            compactWorktreeCards: false,
            newCardStyle: false
          })
        })
      )
    )
    expect(lastPresence()).toMatchObject({ jira: false, automation: false, cli: false })
  })
})