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

<script src="../../../bower_components/webcomponentsjs/webcomponents-lite.min.js"></script>
<script src="../../../bower_components/web-component-tester/browser.js"></script>

<link rel="import" href="../../../bower_components/iron-test-helpers/iron-test-helpers.html">
<link rel="import" href="gr-account-list.html">

<test-fixture id="basic">
  <template>
    <gr-account-list></gr-account-list>
  </template>
</test-fixture>

<script>
  suite('gr-account-list tests', function() {
    var _nextAccountId = 0;
    var makeAccount = function() {
      var accountId = ++_nextAccountId;
      return {
        _account_id: accountId,
      };
    };
    var makeGroup = function() {
      var groupId = 'group' + (++_nextAccountId);
      return {
        id: groupId,
      };
    };

    var existingReviewer1;
    var existingReviewer2;
    var sandbox;
    var element;

    function getChips() {
      return Polymer.dom(element.root).querySelectorAll('gr-account-chip');
    }

    setup(function() {
      sandbox = sinon.sandbox.create();
      existingReviewer1 = makeAccount();
      existingReviewer2 = makeAccount();

      stub('gr-rest-api-interface', {
        getConfig: function() { return Promise.resolve({}); },
      });
      element = fixture('basic');
      element.accounts = [existingReviewer1, existingReviewer2];
    });

    teardown(function() {
      sandbox.restore();
    });

    test('account entry only appears when editable', function() {
      element.readonly = false;
      assert.isFalse(element.$.entry.hasAttribute('hidden'));
      element.readonly = true;
      assert.isTrue(element.$.entry.hasAttribute('hidden'));
    });

    test('addition and removal of account/group chips', function() {
      flushAsynchronousOperations();
      sandbox.stub(element, '_computeRemovable').returns(true);
      // Existing accounts are listed.
      var chips = getChips();
      assert.equal(chips.length, 2);
      assert.isFalse(chips[0].classList.contains('pendingAdd'));
      assert.isFalse(chips[1].classList.contains('pendingAdd'));

      // New accounts are added to end with pendingAdd class.
      var newAccount = makeAccount();
      element._handleAdd({
        detail: {
          value: {
            account: newAccount,
          },
        },
      });
      flushAsynchronousOperations();
      chips = getChips();
      assert.equal(chips.length, 3);
      assert.isFalse(chips[0].classList.contains('pendingAdd'));
      assert.isFalse(chips[1].classList.contains('pendingAdd'));
      assert.isTrue(chips[2].classList.contains('pendingAdd'));

      // Removed accounts are taken out of the list.
      element.fire('remove', {account: existingReviewer1});
      flushAsynchronousOperations();
      chips = getChips();
      assert.equal(chips.length, 2);
      assert.isFalse(chips[0].classList.contains('pendingAdd'));
      assert.isTrue(chips[1].classList.contains('pendingAdd'));

      // Invalid remove is ignored.
      element.fire('remove', {account: existingReviewer1});
      element.fire('remove', {account: newAccount});
      flushAsynchronousOperations();
      chips = getChips();
      assert.equal(chips.length, 1);
      assert.isFalse(chips[0].classList.contains('pendingAdd'));

      // New groups are added to end with pendingAdd and group classes.
      var newGroup = makeGroup();
      element._handleAdd({
        detail: {
          value: {
            group: newGroup,
          },
        },
      });
      flushAsynchronousOperations();
      chips = getChips();
      assert.equal(chips.length, 2);
      assert.isTrue(chips[1].classList.contains('group'));
      assert.isTrue(chips[1].classList.contains('pendingAdd'));

      // Removed groups are taken out of the list.
      element.fire('remove', {account: newGroup});
      flushAsynchronousOperations();
      chips = getChips();
      assert.equal(chips.length, 1);
      assert.isFalse(chips[0].classList.contains('pendingAdd'));
    });

    test('_computeChipClass', function() {
      var account = makeAccount();
      assert.equal(element._computeChipClass(account), '');
      account._pendingAdd = true;
      assert.equal(element._computeChipClass(account), 'pendingAdd');
      account._group = true;
      assert.equal(element._computeChipClass(account), 'group pendingAdd');
      account._pendingAdd = false;
      assert.equal(element._computeChipClass(account), 'group');
    });

    test('_computeRemovable', function() {
      var newAccount = makeAccount();
      newAccount._pendingAdd = true;
      element.readonly = false;
      assert.isFalse(element._computeRemovable(existingReviewer1));
      assert.isTrue(element._computeRemovable(newAccount));

      element.readonly = true;
      assert.isFalse(element._computeRemovable(existingReviewer1));
      assert.isFalse(element._computeRemovable(newAccount));
    });

    test('additions returns sanitized new accounts and groups', function() {
      assert.equal(element.additions().length, 0);

      var newAccount = makeAccount();
      element._handleAdd({
        detail: {
          value: {
            account: newAccount,
          },
        },
      });
      var newGroup = makeGroup();
      element._handleAdd({
        detail: {
          value: {
            group: newGroup,
          },
        },
      });

      assert.deepEqual(element.additions(), [
        {
          account: {
            _account_id: newAccount._account_id,
            _pendingAdd: true,
          },
        },
        {
          group: {
            id: newGroup.id,
            _group: true,
            _pendingAdd: true,
          },
        },
      ]);
    });

    test('large group confirmations', function() {
      assert.isNull(element.pendingConfirmation);
      assert.deepEqual(element.additions(), []);

      var group = makeGroup();
      var reviewer = {
        group: group,
        count: 10,
        confirm: true,
      };
      element._handleAdd({
        detail: {
          value: reviewer,
        },
      });

      assert.deepEqual(element.pendingConfirmation, reviewer);
      assert.deepEqual(element.additions(), []);

      element.confirmGroup(group);
      assert.isNull(element.pendingConfirmation);
      assert.deepEqual(element.additions(), [
        {
          group: {
            id: group.id,
            _group: true,
            _pendingAdd: true,
            confirmed: true,
          },
        },
      ]);
    });

    test('removeAccount fails if account is not removable', function() {
      element.readonly = true;
      var acct = makeAccount();
      element.accounts = [acct];
      element._removeAccount(acct);
      assert.equal(element.accounts.length, 1);
    });

    suite('keyboard interactions', function() {

      test('backspace at text input start removes last account', function() {
        var input = element.$.entry.$.input;
        sandbox.stub(element.$.entry, '_getReviewerSuggestions');
        sandbox.stub(input, '_updateSuggestions');
        sandbox.stub(element, '_computeRemovable').returns(true);
        // Next line is a workaround for Firefix not moving cursor
        // on input field update
        assert.equal(input.$.input.selectionStart, 0);
        input.text = 'test';
        MockInteractions.focus(input.$.input);
        flushAsynchronousOperations();
        assert.equal(element.accounts.length, 2);
        MockInteractions.pressAndReleaseKeyOn(input.$.input, 8); // Backspace
        assert.equal(element.accounts.length, 2);
        input.text = '';
        MockInteractions.pressAndReleaseKeyOn(input.$.input, 8); // Backspace
        assert.equal(element.accounts.length, 1);
      });

      test('arrow key navigation', function() {
        var input = element.$.entry.$.input;
        input.text = '';
        element.accounts = [makeAccount(), makeAccount()];
        MockInteractions.focus(input.$.input);
        flushAsynchronousOperations();
        var chips = element.accountChips;
        var chipsOneSpy = sandbox.spy(chips[1], 'focus');
        MockInteractions.pressAndReleaseKeyOn(input.$.input, 37); // Left
        assert.isTrue(chipsOneSpy.called);
        var chipsZeroSpy = sandbox.spy(chips[0], 'focus');
        MockInteractions.pressAndReleaseKeyOn(chips[1], 37); // Left
        assert.isTrue(chipsZeroSpy.called);
        MockInteractions.pressAndReleaseKeyOn(chips[0], 37); // Left
        assert.isTrue(chipsZeroSpy.calledOnce);
        MockInteractions.pressAndReleaseKeyOn(chips[0], 39); // Right
        assert.isTrue(chipsOneSpy.calledTwice);
      });

      test('delete', function(done) {
        element.accounts = [makeAccount(), makeAccount()];
        flush(function() {
          var chips = element.accountChips;
          var focusSpy = sandbox.spy(element.accountChips[1], 'focus');
          var removeSpy = sandbox.spy(element, '_removeAccount');
          MockInteractions.pressAndReleaseKeyOn(
              element.accountChips[0], 8); // Backspace
          assert.isTrue(focusSpy.called);
          assert.isTrue(removeSpy.calledOnce);

          MockInteractions.pressAndReleaseKeyOn(
              element.accountChips[1], 46); // Delete
          assert.isTrue(removeSpy.calledTwice);
          done();
        });
      });
    });
  });
</script>