/**
 * Host OTA + --datadir prelude. Statically imported first from index.js so it
 * runs before main(), and bare-pack embeds it without dynamic import().
 */
import { name, version, upgrade } from '../../../bin/meta/booter.mjs'
import { startPearOta, parseOtaFlags } from '../../../lib/bare-os-ota.mjs'
import { applyHostFlagsFromArgv } from '../../../lib/bare-os-host-flags.mjs'

function pathBasename(p) {
  const s = String(p || '')
  const i = Math.max(s.lastIndexOf('/'), s.lastIndexOf('\\'))
  return i >= 0 ? s.slice(i + 1) : s
}

function hostArgv() {
  const isBare = typeof globalThis.Bare !== 'undefined'
  if (isBare) {
    const a0 = globalThis.Bare.argv?.[0]
    return globalThis.Bare.argv.slice(pathBasename(a0) === 'bare' ? 2 : 1)
  }
  return (globalThis.process?.argv || []).slice(2)
}

const argv = hostArgv()
const { rest: afterHost } = applyHostFlagsFromArgv(argv)
const { updates, storage } = parseOtaFlags(afterHost)

export const hostOta = await startPearOta({
  upgrade,
  version,
  name: name || 'bare-os-booter',
  updates,
  storage,
})

if (typeof process !== 'undefined' && process.on) {
  const onExit = async (code = 0) => {
    await hostOta.close()
    if (typeof globalThis.Bare !== 'undefined') globalThis.Bare.exit(code)
    else process.exit(code)
  }
  for (const sig of ['SIGINT', 'SIGTERM', 'SIGHUP']) {
    process.on(sig, () => {
      onExit(sig === 'SIGINT' ? 130 : 143).catch(() => {})
    })
  }
}