// JSONオブジェクトとしてスナップショットを取得
getSerializableSnapshot(): SnapshotSuccess | SnapshotFailure

// JSONオブジェクトからスナップショットを復元
setupSnapshotFromSerializedData(data: unknown): SnapshotSuccess | SnapshotFailure

// @f88/promidas-utils/repository

/**
 * Export snapshot to JSON file
 */
export async function exportSnapshotToFile(
  repository: ProtopediaInMemoryRepository,
  filePath: string,
  options?: {
    pretty?: boolean      // JSON formatting (default: false)
    logger?: Logger       // Optional logger
  }
): Promise<FileExportResult>

/**
 * Import snapshot from JSON file
 */
export async function importSnapshotFromFile(
  repository: ProtopediaInMemoryRepository,
  filePath: string,
  options?: {
    logger?: Logger       // Optional logger
  }
): Promise<FileImportResult>

export type FileExportSuccess = {
  ok: true
  filePath: string
  bytesWritten: number
  prototypesExported: number
  snapshot: SerializableSnapshot
}

export type FileExportFailure = {
  ok: false
  error: 'SnapshotError' | 'FileWriteError' | 'SerializationError' | 'PathValidationError' | 'PermissionError' | 'DiskSpaceError'
  message: string
  cause?: unknown
  filePath?: string
}

export type FileImportSuccess = {
  ok: true
  filePath: string
  bytesRead: number
  prototypesLoaded: number
}

export type FileImportFailure = {
  ok: false
  error: 'FileNotFoundError' | 'FileReadError' | 'ParseError' | 'ValidationError' | 'SetupError' | 'PathValidationError'
  message: string
  cause?: unknown
  filePath?: string
}

export type FileExportResult = FileExportSuccess | FileExportFailure
export type FileImportResult = FileImportSuccess | FileImportFailure

import { createPromidasForLocal } from '@f88/promidas'
import { importSnapshotFromFile } from '@f88/promidas-utils/repository'

const repository = createPromidasForLocal('dev-token')

// APIリクエスト不要で固定データをロード
const result = await importSnapshotFromFile(
  repository,
  './fixtures/dev-snapshot.json'
)

if (result.ok) {
  console.log(`✓ Loaded ${result.prototypesLoaded} prototypes`)
}

// 本番環境からスナップショットを取得して保存
const prodRepo = createPromidasForServer()
await prodRepo.loadAndStore()

await exportSnapshotToFile(
  prodRepo,
  './data/prod-snapshot-2026-01-13.json',
  { pretty: true }
)

// ローカル開発で本番データを使用
const devRepo = createPromidasForLocal('dev-token')
await importSnapshotFromFile(devRepo, './data/prod-snapshot-2026-01-13.json')

async function createBackup(repository: ProtopediaInMemoryRepository) {
  const timestamp = new Date().toISOString().replace(/:/g, '-')
  const result = await exportSnapshotToFile(
    repository,
    `./backups/snapshot-${timestamp}.json`,
    { pretty: true }
  )
  
  if (result.ok) {
    console.log(`Backup: ${result.filePath} (${result.bytesWritten} bytes)`)
  }
}

// 一時ファイルを使ったアトミックな書き込み
const tempPath = `${filePath}.tmp`
await fs.writeFile(tempPath, json, 'utf-8')
await fs.rename(tempPath, filePath)

await fs.mkdir(dirname(filePath), { recursive: true })