import path from 'node:path'
import os from 'node:os'

/** converts path to absolute path */
export function absPath(filePath: string, cwd?: string) {
  if (!filePath) {
    throw new Error('A file path must be provided.')
  }
  if (filePath.startsWith('~')) {
    return path.normalize(path.join(os.homedir(), filePath.slice(1)))
  }
  if (path.isAbsolute(filePath)) {
    return path.normalize(filePath)
  }
  if (cwd) {
    return path.normalize(path.resolve(cwd, filePath))
  }
  return path.normalize(path.resolve(filePath))
}