package jalview.util.dialogrunner;

import org.testng.Assert;
import org.testng.annotations.Test;

public class DialogRunnerTest
{
  public class MockDialog implements DialogRunnerI
  {
    DialogRunner<MockDialog> runner = new DialogRunner<>(this);

    @Override
    public MockDialog response(RunResponse action)
    {
      return runner.response(action);
    }

    public void doDialog(String resp)
    {
      runner.firstRun(resp);
    }
  }

  MockDialog dialog = new MockDialog();

  @Test
  public void testDialogRunner()
  {
    RunResponse ok, cancel, help, ineed;
    final Response ooh = new Response("OOOOoooOOOOH!"),
            r_ok = new Response("OK"), r_cancel = new Response("CANCEL"),
            r_done = new Response("DONE"), r_help = new Response("HELP"),
            r_ddoit = new Response("DIDNT DOIT"),
            r_needsb = new Response("I NEED SOMEBODY");

    ok = new RunResponse("OK")
    {

      @Override
      public void run()
      {
        returned = new Response("DONE");
      }
    };
    final RunResponse befok = new RunResponse("OK")
    {

      @Override
      public void run()
      {
        returned = new Response("OK");
      }
    };

    cancel = new RunResponse("CANCEL")
    {
      @Override
      public void run()
      {
        returned = r_ddoit;
      }
    };
    help = new RunResponse("HELP")
    {
      @Override
      public void run()
      {
        returned = r_needsb;

      }
    };
    ineed = new RunResponse(r_needsb)
    {
      @Override
      public void run()
      {
        returned = ooh;
      }
    };

    Assert.assertFalse(dialog.runner.isRegistered(ok));

    dialog.response(ok).response(cancel).response(help).response(ineed);

    Assert.assertTrue(dialog.runner.isRegistered(ok));

    Assert.assertFalse(dialog.runner.firstRunWasCalled);
    dialog.doDialog("OK");
    // OK called, nothing else.
    Assert.assertTrue(dialog.runner.firstRunWasCalled);
    Assert.assertTrue(ok.wasRun);
    Assert.assertEquals(ok.returned, r_done);
    Assert.assertFalse(cancel.wasRun);
    Assert.assertEquals(dialog.runner.responses.size(), 2);

    // do it again - check it doesn't trigger again
    ok.wasRun = false;
    dialog.doDialog("OK");
    Assert.assertFalse(ok.wasRun);

    // reset - everything false/null
    dialog.runner.resetResponses();
    Assert.assertFalse(dialog.runner.firstRunWasCalled);
    Assert.assertFalse(ok.wasRun);
    Assert.assertNull(ok.returned);
    Assert.assertEquals(dialog.runner.responses.size(), 0);

    // cancel called ..
    dialog.doDialog("HELP");
    Assert.assertTrue(dialog.runner.firstRunWasCalled);
    Assert.assertFalse(ok.wasRun);
    Assert.assertEquals(ineed.returned, ooh);
    Assert.assertEquals(dialog.runner.responses.size(), 3);

    // TODO: test prepend and chained execution of tasks for a response.
    Assert.assertFalse(dialog.runner.isRegistered(befok));
    dialog.runner.firstResponse(befok);

    Assert.assertTrue(dialog.runner.isRegistered(befok));
    Assert.assertTrue(dialog.runner.isRegistered(ok));

    dialog.runner.resetResponses();

    dialog.doDialog("OK");
    Assert.assertTrue(befok.wasRun);
    Assert.assertTrue(ok.wasRun);
    Assert.assertEquals(dialog.runner.responses.size(), 3);
  }
}