ip_endpoint.pony

use "promises"
use "ponytest"

class val IPEndpoint
  """Represents a host and service name.

  The endpoint can be resolved to an IP address.
  """

  let _host: String
  let _service: String
  let _promise: Promise[IPAddress] = _promise.create()

  new create(host: String, service: String) =>
    _host = host
    _service = service

  fun ref resolve(): Promise[IPAddress] =>
    // To-Do: Actually spawn an asynchronous `getaddrinfo_a` call and
    //somehow connect the result to the promise.
    _promise(IPAddress)
    _promise


class iso _IPEndpointTest is UnitTest
  fun name(): String => "net/IPEndpoint"

  fun ref apply(h: TestHelper) =>
    let endpoint = IPEndpoint("localhost", "25")
    let p = endpoint.resolve()
      .next[String](
        recover lambda(ip_address: IPAddress)(x: U32 = 42): String => ip_address.string() end end
      )