import { accessSync, constants, mkdirSync, statfsSync } from 'node:fs'
import { dirname, resolve } from 'node:path'

export default defineEventHandler(() => {
  const config = useRuntimeConfig()
  useDatabase().prepare('SELECT 1').get()
  const databaseDirectory = dirname(resolve(process.cwd(), config.databasePath))
  const uploadsDirectory = resolve(process.cwd(), 'data', 'uploads')
  mkdirSync(uploadsDirectory, { recursive: true })
  accessSync(databaseDirectory, constants.R_OK | constants.W_OK)
  accessSync(uploadsDirectory, constants.R_OK | constants.W_OK)
  const disk = statfsSync(resolve(process.cwd(), 'data'))
  const freeBytes = Number(disk.bavail) * Number(disk.bsize)
  if (freeBytes < 256 * 1024 * 1024) throw createError({ statusCode: 503, statusMessage: '可用磁盘空间不足' })
  return {
    status: 'ok',
    timestamp: new Date().toISOString(),
    version: process.env.APP_VERSION || 'development',
    checks: { database: 'ok', uploads: 'writable', freeBytes },
  }
})