// rnx cli version, resolved once and cached. standalone builds embed it so
// lazy command chunks do not depend on an npm package layout at runtime.

import { readFileSync } from 'node:fs'
import { fileURLToPath } from 'node:url'
import { rnxPublicBrand } from './public-brand.ts'

declare const __RNX_CLI_VERSION__: string

let cached: string | null = null

export function getCliVersion(): string {
  if (cached != null) return cached
  if (
    typeof __RNX_CLI_VERSION__ !== 'undefined' &&
    typeof __RNX_CLI_VERSION__ === 'string' &&
    __RNX_CLI_VERSION__
  ) {
    cached = __RNX_CLI_VERSION__
    return cached
  }
  // prefer package resolution (works for npm/global installs); fall back to
  // the package.json next to this module's source for repo / bundled runs.
  const candidates: Array<() => string> = [
    () =>
      fileURLToPath(import.meta.resolve(`${rnxPublicBrand.packageName}/package.json`)),
    () => fileURLToPath(new URL('../package.json', import.meta.url)),
  ]
  for (const resolve of candidates) {
    try {
      const version = JSON.parse(readFileSync(resolve(), 'utf8')).version
      if (typeof version === 'string' && version) {
        cached = version
        return cached
      }
    } catch {}
  }
  cached = '0.0.0'
  return cached
}