// src/shared/errors.ts

export enum ErrorCode {
  // === Success ===
  Success = 0,

  // === STT (100-199) ===
  STTEngineNotInstalled = 100,
  STTModelNotFound = 101,
  STTModelNotLoaded = 102,
  STTModelLoadFailed = 103,
  STTModelDownloadFailed = 104,
  STTModelDownloadCancelled = 105,
  STTTranscriptionFailed = 110,
  STTTranscriptionTimeout = 111,
  STTTranscriptionCancelled = 112,
  STTNoAudioData = 113,
  STTAudioTooShort = 114,
  STTLanguageNotSupported = 120,
  STTSidecarSpawnFailed = 130,
  STTSidecarCrashed = 131,
  STTSidecarCommunicationFailed = 132,
  STTGPUNotAvailable = 140,

  // === TTS (200-299) ===
  TTSEngineNotInstalled = 200,
  TTSVoiceNotFound = 201,
  TTSVoiceNotLoaded = 202,
  TTSVoiceLoadFailed = 203,
  TTSVoiceDownloadFailed = 204,
  TTSSynthesisFailed = 210,
  TTSPlaybackFailed = 211,
  TTSPlaybackInterrupted = 212,
  TTSTextTooLong = 220,
  TTSTextEmpty = 221,

  // === LLM / Ollama (300-399) ===
  LLMServerUnreachable = 300,
  LLMServerConnectionFailed = 301,
  LLMServerTimeout = 302,
  LLMModelNotFound = 310,
  LLMModelNotLoaded = 311,
  LLMModelLoadFailed = 312,
  LLMModelPullFailed = 313,
  LLMModelPullCancelled = 314,
  LLMProcessingFailed = 320,
  LLMProcessingTimeout = 321,
  LLMProcessingCancelled = 322,
  LLMResponseParseFailed = 323,
  LLMInvalidAction = 330,
  LLMPromptTooLong = 331,

  // === Audio (400-499) ===
  AudioDeviceNotFound = 400,
  AudioDeviceAccessDenied = 401,
  AudioDeviceBusy = 402,
  AudioCaptureStartFailed = 410,
  AudioCaptureStopFailed = 411,
  AudioCaptureFailed = 412,
  AudioNoPermission = 420,
  AudioStreamError = 430,
  AudioBufferOverflow = 431,

  // === Hotkey (500-599) ===
  HotkeyRegistrationFailed = 500,
  HotkeyConflict = 501,
  HotkeySystemReserved = 502,
  HotkeyHookInitFailed = 510,
  HotkeyHookCrashed = 511,

  // === TextInsert (600-699) ===
  TextInsertFailed = 600,
  TextInsertClipboardSaveFailed = 601,
  TextInsertClipboardRestoreFailed = 602,
  TextInsertKeySimulationFailed = 603,
  TextInsertNoActiveWindow = 610,
  TextInsertTargetAppNotResponding = 611,

  // === History / Dictionary / DB (700-799) ===
  DBOpenFailed = 700,
  DBMigrationFailed = 701,
  DBQueryFailed = 702,
  DBWriteFailed = 703,
  HistoryNotFound = 710,
  HistoryExportFailed = 711,
  DictionaryNotFound = 720,
  DictionaryDuplicate = 721,
  DictionaryImportFailed = 722,
  DictionaryExportFailed = 723,
  DictionaryImportInvalidFormat = 724,

  // === Phase 10: Memo Tags (730-739) ===
  MemoTagDuplicate = 730,
  MemoTagNotFound = 731,
  MemoExportFailed = 732,

  // === Phase 10: Voice Commands (740-749) ===
  VoiceCommandMatchFailed = 740,
  VoiceCommandNotFound = 741,

  // === Phase 10: Screen Context (750-759) ===
  ContextCaptureFailed = 750,
  ContextSelectedTextFailed = 751,

  // === Phase 10: LLM Chain (760-769) ===
  ChainNotFound = 760,
  ChainExecutionFailed = 761,
  ChainStepFailed = 762,
  ChainCancelled = 763,

  // === Phase 10: Live Caption (770-779) ===
  CaptionStartFailed = 770,
  CaptionAlreadyActive = 771,
  CaptionSTTFailed = 772,

  // === Phase 12: File Transcription (780-784) ===
  FileTranscriptionFFmpegFailed = 780,
  FileTranscriptionInvalidFormat = 781,
  FileTranscriptionChunkFailed = 782,
  FileTranscriptionCancelled = 783,
  FileTranscriptionFileTooLarge = 784,

  // === Phase 12: Meeting Summary (785-789) ===
  MeetingSummaryGenerationFailed = 785,
  MeetingSummaryNoTranscript = 786,
  MeetingSummaryExportFailed = 787,

  // === Phase 12: Dictation Template (790-794) ===
  TemplateNotFound = 790,
  TemplateSessionAlreadyActive = 791,
  TemplateSessionNotActive = 792,
  TemplateFieldRecordingFailed = 793,
  TemplateInvalidFormat = 794,

  // === Phase 13: Voice Conversation (795-799) ===
  ConversationSessionAlreadyActive = 795,
  ConversationNoActiveSession = 796,
  ConversationTTSFailed = 797,
  ConversationLLMFailed = 798,

  // === Phase 13: Local RAG (870-874) ===
  RAGDocumentNotFound = 870,
  RAGIndexingFailed = 871,
  RAGEmbeddingFailed = 872,
  RAGQueryFailed = 873,
  RAGUnsupportedFormat = 874,

  // === Phase 13: Voice Action (875-879) ===
  VoiceActionPlanFailed = 875,
  VoiceActionExecutionFailed = 876,
  VoiceActionBlocked = 877,
  VoiceActionInvalidPlan = 878,

  // === Phase 14: Meeting Mode (880-889) ===
  MeetingAlreadyRecording = 880,
  MeetingNotRecording = 881,
  MeetingProcessingFailed = 882,
  MeetingSessionNotFound = 883,
  MeetingExportFailed = 884,
  MeetingPdfFailed = 885,

  // === Config (800-849) ===
  ConfigReadFailed = 800,
  ConfigWriteFailed = 801,
  ConfigInvalidValue = 802,
  ConfigKeyNotFound = 803,
  ConfigResetFailed = 804,
  ConfigMigrationFailed = 810,

  // === License (850-869) ===
  LicenseKeyInvalid = 850,
  LicenseKeyExpired = 851,
  LicenseActivationFailed = 852,
  LicenseDeactivationFailed = 853,
  LicenseMachineIdMismatch = 854,
  LicenseOfflineGraceExpired = 855,
  LicenseVerificationFailed = 856,
  FeatureNotAvailable = 860,
  QuotaExceeded = 861,
  TierRequired = 862,

  // === System / Window (900-999) ===
  WindowCreationFailed = 900,
  WindowNotFound = 901,
  TrayCreationFailed = 910,
  NotificationFailed = 920,
  PermissionDenied = 930,
  ExternalOpenFailed = 940,
  SoundPlayFailed = 950,
  AppAlreadyRunning = 960,
  UnknownError = 999
}

/**
 * D3RO-VOICE 표준 에러 객체 (Speakly NXError 패턴)
 */
export class D3ROError extends Error {
  readonly code: ErrorCode
  readonly details?: Record<string, unknown>

  constructor(code: ErrorCode, message: string, details?: Record<string, unknown>) {
    super(message)
    this.name = 'D3ROError'
    this.code = code
    this.details = details
  }

  toJSON(): D3ROErrorJSON {
    return {
      code: this.code,
      message: this.message,
      details: this.details
    }
  }

  static fromJSON(json: D3ROErrorJSON): D3ROError {
    return new D3ROError(json.code, json.message, json.details)
  }
}

export interface D3ROErrorJSON {
  code: ErrorCode
  message: string
  details?: Record<string, unknown>
}

/**
 * IPC 핸들러에서 사용하는 표준 응답 래퍼.
 */
export type IPCResult<T> =
  | { success: true; data: T }
  | { success: false; error: D3ROErrorJSON }

export function ipcSuccess<T>(data: T): IPCResult<T> {
  return { success: true, data }
}

export function ipcError<T>(
  code: ErrorCode,
  message: string,
  details?: Record<string, unknown>
): IPCResult<T> {
  return { success: false, error: { code, message, details } }
}