import { Assertions, Logger, Step } from '@ephox/agar';
import { UnitTest } from '@ephox/bedrock';
import { Attr, Node } from '@ephox/sugar';

import * as Behaviour from 'ephox/alloy/api/behaviour/Behaviour';
import { Coupling } from 'ephox/alloy/api/behaviour/Coupling';
import * as GuiFactory from 'ephox/alloy/api/component/GuiFactory';
import { Button } from 'ephox/alloy/api/ui/Button';
import { Container } from 'ephox/alloy/api/ui/Container';
import * as Tagger from 'ephox/alloy/registry/Tagger';
import * as GuiSetup from 'ephox/alloy/api/testhelpers/GuiSetup';
import * as StepUtils from 'ephox/alloy/test/StepUtils';

UnitTest.asynctest('CouplingTest', (success, failure) => {

  GuiSetup.setup((store, doc, body) => {
    return GuiFactory.build(
      Container.sketch({
        uid: 'primary',
        containerBehaviours: Behaviour.derive([
          Coupling.config({
            others: {
              'secondary-1' (primary) {
                return Button.sketch({
                  dom: {
                    tag: 'button'
                  },
                  action: store.adder('clicked on coupled button of: ' + Tagger.read(primary.element()).getOr('No UID'))
                });
              }
            }
          })
        ])
      })
    );
  }, (doc, body, gui, component, store) => {
    return [
      StepUtils.sAssertFailContains(
        'Testing getCoupled with invalid name: fake',
        'No information found for coupled component: fake',
        () => {
          Coupling.getCoupled(component, 'fake');
        }
      ),

      Logger.t(
        'Testing getCoupled with valid name: secondary-1',
        Step.sync(() => {
          const secondary1 = Coupling.getCoupled(component, 'secondary-1');
          const button1 = secondary1.element();
          Assertions.assertEq('secondary1 should be a button', 'button', Node.name(button1));
          Attr.set(button1, 'data-test', 'marked');

          Assertions.assertEq(
            'secondary1 is not recreated. Should still have attribute: data-test',
            'marked',
            Attr.get(Coupling.getCoupled(component, 'secondary-1').element(), 'data-test')
          );
        })
      ),

      store.sAssertEq('Should be nothing on the store', [ ]),
      Step.sync(() => {
        const secondary1 = Coupling.getCoupled(component, 'secondary-1');
        gui.add(secondary1);
        secondary1.element().dom().click();
      }),
      store.sAssertEq(
        'After clicking, store should have message',
        [ 'clicked on coupled button of: primary' ]
      )
    ];
  }, () => { success(); }, failure);
});