// tests/main/services/suggestion-redteam-r3-1.test.ts
// 제안 서비스 회귀 (r3-1):
//  - 케어렛을 모르는 문서 중간 편집 뒤에는 수락하지 않는다
//  - 다른 기능의 짧은 keep_alive 로 모델이 내려갔으면 warm 이 아니다 / 시간 초과면 콜드로 본다
//  - 입력 수집 동의가 없으면 모델을 데우지 않고, 철회하면 세션·보관 문맥을 버린다
//  - 한 세션은 한 이력 행이다 (채우기 후보는 행을 늘리지 않고, 수락은 세션 행에 기록)
import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest'
import type { PersonalPhrase } from '@d3ro/core/input-intelligence'

const config = vi.hoisted(() => ({
  suggestionEnabled: true as boolean,
  suggestionModelId: 'model-a' as string | null,
  llmModelId: 'model-a' as string | null,
  inputExcludedApps: [] as string[],
  suggestionTriggerDelayMs: 600,
  suggestionMinPrefixChars: 8,
  suggestionMaxRequestsPerMinute: 12,
  suggestionDailyBudget: 500,
  suggestionRequestTimeoutMs: 8000,
  inputLearnTypedText: false as boolean,
  inputTelemetryEnabled: false as boolean,
  inputTelemetryPaused: false as boolean,
  suggestionOverlayInteractive: true,
  insertMethod: 'clipboard'
}))
const harness = vi.hoisted(() => ({
  isAvailable: vi.fn(() => true),
  streamGenerate: vi.fn(),
  insertText: vi.fn(async (text: string) => ({ success: true, method: 'clipboard', textLength: text.length })),
  phrases: [] as PersonalPhrase[]
}))

vi.mock('../../../src/main/services/ConfigService', () => ({
  configGet: vi.fn((key: keyof typeof config) => config[key]),
  configSet: vi.fn((key: keyof typeof config, value: never) => {
    config[key] = value
  })
}))
vi.mock('../../../src/main/services/LoggerService', () => ({
  getLogger: () => ({ info: vi.fn(), warn: vi.fn(), error: vi.fn(), debug: vi.fn() })
}))
vi.mock('../../../src/main/services/LocalLLMService', () => ({
  getLocalLLMService: () => ({ isAvailable: harness.isAvailable, streamGenerate: harness.streamGenerate })
}))
vi.mock('../../../src/main/services/InputTelemetryService', () => ({
  getInputTelemetryService: () => ({ listPhrases: () => harness.phrases })
}))
vi.mock('../../../src/main/services/PersonalGraphService', () => ({
  getPersonalGraphService: () => ({ retrieveContext: () => ({ continuations: [], related: [] }) })
}))
vi.mock('../../../src/main/services/TextInsertService', () => ({
  getTextInsertService: () => ({ insertText: harness.insertText })
}))
vi.mock('../../../src/main/services/modifier-state', () => ({ waitForModifiersReleased: async () => true }))
vi.mock('../../../src/main/utils/win32-foreground', () => ({ getForegroundWindowInfo: () => null }))
vi.mock('../../../src/main/db', () => ({ getDatabase: vi.fn() }))
vi.mock('../../../src/main/db/schema', () => ({ suggestions: {} }))

import { SuggestionService, type SuggestionServiceDeps } from '../../../src/main/services/SuggestionService'
import { SuggestionBudget } from '../../../src/main/services/suggestion/SuggestionBudget'
import { ModelWarmTracker } from '../../../src/main/services/suggestion/ModelWarmTracker'
import type { TypingContext } from '../../../src/main/services/InputTelemetryService'

const PREFIX = '오늘 회의에서 논의한 내용을 정리해서'
const SUGGESTION = '다음 단계도 확인하겠습니다.'

function typingContext(overrides: Partial<TypingContext> = {}): TypingContext {
  const prefix = overrides.prefix ?? PREFIX
  return {
    prefix,
    fullText: prefix,
    caretOffset: prefix.length,
    anchor: { x: 100, y: 100, width: 2, height: 20 },
    anchorKind: 'caret',
    isPassword: false,
    isEditable: true,
    isComposing: false,
    hasSelection: false,
    available: true,
    appName: 'Slack.exe',
    windowTitle: 'general',
    windowHandle: 101,
    idleMs: 2000,
    capturedAt: Date.now(),
    editedSinceFocus: true,
    typedRecently: true,
    ...overrides
  }
}

interface Fakes {
  deps: SuggestionServiceDeps
  record: ReturnType<typeof vi.fn>
  markAccepted: ReturnType<typeof vi.fn>
  expectInsert: ReturnType<typeof vi.fn>
  recordAccepted: ReturnType<typeof vi.fn>
}

function fakes(): Fakes {
  const record = vi.fn()
  const markAccepted = vi.fn()
  const expectInsert = vi.fn(() => vi.fn())
  const recordAccepted = vi.fn()
  return {
    record,
    markAccepted,
    expectInsert,
    recordAccepted,
    deps: {
      repository: { record, markAccepted, list: vi.fn(() => []) },
      budget: new SuggestionBudget(),
      warmth: new ModelWarmTracker(),
      foreground: { currentWindowHandle: () => 101 },
      learning: { expectProgrammaticInsert: expectInsert, recordAccepted }
    }
  }
}

function streamOf(text: string): AsyncGenerator<string> {
  return (async function* () {
    yield text
  })()
}

/** 호출자가 풀어 줄 때까지 기다리는 스트림 — abort 되면 예외로 끝난다. */
function gatedStream(signal: AbortSignal | undefined, gate: Promise<string>): AsyncGenerator<string> {
  return (async function* () {
    const text = await new Promise<string>((resolve, reject) => {
      signal?.addEventListener('abort', () => reject(new Error('aborted')), { once: true })
      void gate.then(resolve)
    })
    yield text
  })()
}

interface Internal {
  _generate(prefix: string, context: TypingContext, maxCandidates: number, maxChars: number): Promise<void>
  _lastContext: TypingContext | null
  _inFlight: boolean
  _warmUpPromise: Promise<void> | null
}

let services: SuggestionService[] = []
function create(deps: SuggestionServiceDeps, warm = true): SuggestionService {
  if (warm) deps.warmth.noteWarm('model-a', Date.now() + 600_000)
  const service = new SuggestionService(deps)
  services.push(service)
  return service
}


import { ModelResidencyLedger, parseKeepAliveMs } from '../../../src/main/services/llm/model-residency'

beforeEach(() => {
  config.suggestionEnabled = true
  config.suggestionModelId = 'model-a'
  config.llmModelId = 'model-a'
  config.suggestionRequestTimeoutMs = 8000
  config.inputLearnTypedText = false
  config.inputTelemetryEnabled = false
  config.inputTelemetryPaused = false
  harness.isAvailable.mockReset()
  harness.isAvailable.mockReturnValue(true)
  harness.streamGenerate.mockReset()
  harness.insertText.mockClear()
  harness.phrases = []
})

afterEach(() => {
  for (const service of services) service.dispose()
  services = []
})

async function flush(): Promise<void> {
  for (let i = 0; i < 8; i += 1) await new Promise((resolve) => setTimeout(resolve, 0))
}

describe('케어렛을 모르는 필드 (item 3)', () => {
  it('문서 중간 편집 뒤(caretReliable=false)에는 표시 중인 후보를 수락하지 않는다', async () => {
    harness.streamGenerate.mockImplementation(() => streamOf(SUGGESTION))
    const fake = fakes()
    const service = create(fake.deps)
    await (service as unknown as Internal)._generate(PREFIX, typingContext(), 3, 160)
    expect(service.isVisible).toBe(true)

    const internal = service as unknown as Internal
    internal._lastContext = typingContext({ caretOffset: null, caretReliable: false })
    const result = await service.accept()

    expect(result).toEqual({ ok: false, reason: 'caret-unknown' })
    expect(harness.insertText).not.toHaveBeenCalled()
  })

  it('케어렛을 모르는 문맥이 오면 세션을 닫는다', async () => {
    harness.streamGenerate.mockImplementation(() => streamOf(SUGGESTION))
    const fake = fakes()
    const service = create(fake.deps)
    await (service as unknown as Internal)._generate(PREFIX, typingContext(), 3, 160)
    service.handleTypingContext(typingContext({ caretOffset: null, caretReliable: false }))
    expect(service.isVisible).toBe(false)
    expect(service.getState().lastSkipReason).toBe('caret-unknown')
  })
})

describe('모델 상주 추정 (item 4)', () => {
  it('keep_alive 문자열을 해석한다', () => {
    expect(parseKeepAliveMs('10m')).toBe(600_000)
    expect(parseKeepAliveMs('2m')).toBe(120_000)
    expect(parseKeepAliveMs(undefined)).toBe(300_000)
    expect(parseKeepAliveMs('1h30m')).toBe(5_400_000)
  })

  it('같은 모델을 더 짧은 keep_alive 로 쓴 요청이 있으면 그 만료 뒤에는 warm 이 아니다', () => {
    const ledger = new ModelResidencyLedger()
    const tracker = new ModelWarmTracker(ledger)
    const t0 = 1_000_000
    ledger.noteRequest('model-a', '10m', t0)
    tracker.noteWarm('model-a', t0 + 570_000)
    // 1분 뒤 음성 대화가 같은 모델을 keep_alive 2m 로 사용
    ledger.noteRequest('model-a', '2m', t0 + 60_000)
    expect(tracker.isWarm('model-a', t0 + 120_000)).toBe(true)
    expect(tracker.isWarm('model-a', t0 + 6 * 60_000)).toBe(false)
  })

  it('warm 이라 믿은 요청이 시간 초과하면 콜드로 본다 (다음 멈춤은 워밍업)', async () => {
    config.suggestionRequestTimeoutMs = 20
    harness.streamGenerate.mockImplementation((_text: string, options: { signal?: AbortSignal }) =>
      gatedStream(options.signal, new Promise<string>(() => undefined))
    )
    const fake = fakes()
    const service = create(fake.deps)
    expect(fake.deps.warmth.isWarm('model-a', Date.now())).toBe(true)
    await (service as unknown as Internal)._generate(PREFIX, typingContext(), 3, 160)
    expect(fake.deps.warmth.isWarm('model-a', Date.now())).toBe(false)
  })
})

describe('입력 수집 동의 (item 7)', () => {
  it('동의 없이 제안을 켜면 모델을 데우지 않는다', async () => {
    const fake = fakes()
    const service = create(fake.deps, false)
    service.setEnabled(true)
    await flush()
    expect(harness.streamGenerate).not.toHaveBeenCalled()
  })

  it('동의를 철회하면 떠 있는 세션을 닫고 보관 문맥을 버린다 (수동 요청이 옛 접두로 생성하지 않음)', async () => {
    config.inputTelemetryEnabled = true
    harness.streamGenerate.mockImplementation(() => streamOf(SUGGESTION))
    const fake = fakes()
    const service = create(fake.deps)
    service.handleTypingContext(typingContext())
    await flush()
    expect(service.isVisible).toBe(true)

    config.inputTelemetryEnabled = false
    harness.streamGenerate.mockClear()
    service.handleInputConsentChanged()

    expect(service.isVisible).toBe(false)
    expect(await service.requestNow()).toEqual({ ok: false, reason: 'not-editable' })
    expect(harness.streamGenerate).not.toHaveBeenCalled()
  })
})

describe('제안 이력은 세션당 한 행 (item 8)', () => {
  function sessionRepository() {
    return {
      record: vi.fn(() => 'row-1'),
      updateSessionCandidates: vi.fn(),
      markSessionAccepted: vi.fn(),
      markAccepted: vi.fn(),
      list: vi.fn(() => [])
    }
  }

  it('채우기 후보는 새 행(지연 0)을 만들지 않고 세션 행의 후보 수만 갱신한다', async () => {
    const outputs = ['첫 번째 후보 문장입니다.', '두 번째 후보 문장입니다.', '세 번째 후보 문장입니다.']
    let call = 0
    harness.streamGenerate.mockImplementation(() => streamOf(outputs[Math.min(call++, outputs.length - 1)]))
    const fake = fakes()
    const repository = sessionRepository()
    fake.deps.repository = repository
    const service = create(fake.deps)
    await (service as unknown as Internal)._generate(PREFIX, typingContext(), 3, 160)
    await flush()

    expect(service.getState().candidates.length).toBeGreaterThanOrEqual(2)
    expect(repository.record).toHaveBeenCalledTimes(1)
    expect(repository.updateSessionCandidates).toHaveBeenCalledWith('row-1', expect.any(Number))
  })

  it('로컬 기억 세션에서 2번째 후보를 수락하면 그 세션 행에 기록한다', async () => {
    config.suggestionModelId = null
    config.llmModelId = null
    harness.phrases = [
      { id: 'p1', phrase: '다음 단계도 확인하겠습니다.', count: 3, score: 3, lastUsedAt: Date.now(), appName: null, source: 'typed' },
      { id: 'p2', phrase: '회의록은 내일 공유드리겠습니다.', count: 2, score: 2, lastUsedAt: Date.now(), appName: null, source: 'typed' }
    ] as unknown as typeof harness.phrases
    const fake = fakes()
    const repository = sessionRepository()
    fake.deps.repository = repository
    const service = create(fake.deps, false)
    const context = typingContext({ prefix: '오늘 회의 정리했습니다.' })
    const internal = service as unknown as Internal
    internal._lastContext = context
    await internal._generate(context.prefix, context, 3, 160)
    const state = service.getState()
    expect(state.candidates.length).toBeGreaterThanOrEqual(2)
    expect(repository.record).toHaveBeenCalledTimes(1)

    const second = state.candidates[1].text
    expect(await service.accept(1)).toEqual({ ok: true })
    expect(repository.markSessionAccepted).toHaveBeenCalledWith('row-1', second)
    expect(repository.markAccepted).not.toHaveBeenCalled()
  })
})