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<meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
<title>gr-dom-hooks</title>

<script src="/bower_components/webcomponentsjs/custom-elements-es5-adapter.js"></script>

<script src="/bower_components/webcomponentsjs/webcomponents-lite.js"></script>
<script src="/bower_components/web-component-tester/browser.js"></script>
<link rel="import" href="../../../test/common-test-setup.html"/>
<link rel="import" href="gr-dom-hooks.html"/>
<link rel="import" href="../../shared/gr-js-api-interface/gr-js-api-interface.html">

<script>void(0);</script>

<test-fixture id="basic">
  <template>
    <div></div>
  </template>
</test-fixture>

<script>
  suite('gr-dom-hooks tests', () => {
    const PUBLIC_METHODS =
        ['onAttached', 'getLastAttached', 'getAllAttached', 'getModuleName'];

    let instance;
    let sandbox;
    let hook;
    let hookInternal;

    setup(() => {
      sandbox = sinon.sandbox.create();
      let plugin;
      Gerrit.install(p => { plugin = p; }, '0.1',
          'http://test.com/plugins/testplugin/static/test.js');
      instance = new GrDomHooksManager(plugin);
    });

    teardown(() => {
      sandbox.restore();
    });

    suite('placeholder', () => {
      setup(()=>{
        sandbox.stub(GrDomHook.prototype, '_createPlaceholder');
        hookInternal = instance.getDomHook('foo-bar');
        hook = hookInternal.getPublicAPI();
      });

      test('public hook API has only public methods', () => {
        assert.deepEqual(Object.keys(hook), PUBLIC_METHODS);
      });

      test('registers placeholder class', () => {
        assert.isTrue(hookInternal._createPlaceholder.calledWithExactly(
            'testplugin-autogenerated-foo-bar'));
      });

      test('getModuleName()', () => {
        const hookName = Object.keys(instance._hooks).pop();
        assert.equal(hookName, 'testplugin-autogenerated-foo-bar');
        assert.equal(hook.getModuleName(), 'testplugin-autogenerated-foo-bar');
      });
    });

    suite('custom element', () => {
      setup(() => {
        hookInternal = instance.getDomHook('foo-bar', 'my-el');
        hook = hookInternal.getPublicAPI();
      });

      test('public hook API has only public methods', () => {
        assert.deepEqual(Object.keys(hook), PUBLIC_METHODS);
      });

      test('getModuleName()', () => {
        const hookName = Object.keys(instance._hooks).pop();
        assert.equal(hookName, 'foo-bar my-el');
        assert.equal(hook.getModuleName(), 'my-el');
      });

      test('onAttached', () => {
        const onAttachedSpy = sandbox.spy();
        hook.onAttached(onAttachedSpy);
        const [el1, el2] = [
          document.createElement(hook.getModuleName()),
          document.createElement(hook.getModuleName()),
        ];
        hookInternal.handleInstanceAttached(el1);
        hookInternal.handleInstanceAttached(el2);
        assert.isTrue(onAttachedSpy.firstCall.calledWithExactly(el1));
        assert.isTrue(onAttachedSpy.secondCall.calledWithExactly(el2));
      });

      test('getAllAttached', () => {
        const [el1, el2] = [
          document.createElement(hook.getModuleName()),
          document.createElement(hook.getModuleName()),
        ];
        el1.textContent = 'one';
        el2.textContent = 'two';
        hookInternal.handleInstanceAttached(el1);
        hookInternal.handleInstanceAttached(el2);
        assert.deepEqual([el1, el2], hook.getAllAttached());
        hookInternal.handleInstanceDetached(el1);
        assert.deepEqual([el2], hook.getAllAttached());
      });

      test('getLastAttached', () => {
        const beforeAttachedPromise = hook.getLastAttached().then(
            el => assert.strictEqual(el1, el));
        const [el1, el2] = [
          document.createElement(hook.getModuleName()),
          document.createElement(hook.getModuleName()),
        ];
        el1.textContent = 'one';
        el2.textContent = 'two';
        hookInternal.handleInstanceAttached(el1);
        hookInternal.handleInstanceAttached(el2);
        const afterAttachedPromise = hook.getLastAttached().then(
            el => assert.strictEqual(el2, el));
        return Promise.all([
          beforeAttachedPromise,
          afterAttachedPromise,
        ]);
      });
    });
  });
</script>