function getAuth()

in src/client.ts [340:376]

• 17 lines of code
• 9 McCabe index (conditional complexity)

function getAuth (node?: string | string[] | NodeOptions | NodeOptions[]): { username: string, password: string } | null {
  if (Array.isArray(node)) {
    for (const url of node) {
      const auth = getUsernameAndPassword(url)
      if (auth != null && auth.username !== '' && auth.password !== '') {
        return auth
      }
    }

    return null
  } else {
    const auth = getUsernameAndPassword(node)
    if (auth != null && auth.username !== '' && auth.password !== '') {
      return auth
    }

    return null
  }

  function getUsernameAndPassword (node?: string | NodeOptions): { username: string, password: string } | null {
    /* istanbul ignore else */
    if (typeof node === 'string') {
      const { username, password } = new URL(node)
      return {
        username: decodeURIComponent(username),
        password: decodeURIComponent(password)
      }
    } else if (node != null && node.url instanceof URL) {
      return {
        username: decodeURIComponent(node.url.username),
        password: decodeURIComponent(node.url.password)
      }
    } else {
      return null
    }
  }
}