// Copyright (C) Stichting Deltares 2017. All rights reserved.
//
// This file is part of Ringtoets.
//
// Ringtoets is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// 
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
//
// All names, logos, and references to "Deltares" are registered trademarks of
// Stichting Deltares and remain full property of Stichting Deltares at all times.
// All rights reserved.

using System;
using System.ComponentModel;
using System.Windows.Media;
using Core.Components.GraphSharp.Commands;
using Core.Components.GraphSharp.Data;
using NUnit.Framework;

namespace Core.Components.GraphSharp.Test.Data
{
    [TestFixture]
    public class PointedTreeElementVertexTest
    {
        [Test]
        public void Constructor_ContentNull_ThrowsArgumentNullException()
        {
            // Call
            TestDelegate call = () => new PointedTreeElementVertex(null, new SolidColorBrush(Colors.Gray), new SolidColorBrush(Colors.Gray), 3, PointedTreeVertexType.None, false);

            // Assert
            var exception = Assert.Throws<ArgumentNullException>(call);
            Assert.AreEqual("content", exception.ParamName);
        }

        [Test]
        public void Constructor_FillColorNull_ThrowsArgumentNullException()
        {
            // Call
            TestDelegate call = () => new PointedTreeElementVertex("test", null, new SolidColorBrush(Colors.Gray), 3, PointedTreeVertexType.None, false);

            // Assert
            var exception = Assert.Throws<ArgumentNullException>(call);
            Assert.AreEqual("fillColor", exception.ParamName);
        }

        [Test]
        public void Constructor_LineColorNull_ThrowsArgumentNullException()
        {
            // Call
            TestDelegate call = () => new PointedTreeElementVertex("test", new SolidColorBrush(Colors.Gray), null, 3, PointedTreeVertexType.None, false);

            // Assert
            var exception = Assert.Throws<ArgumentNullException>(call);
            Assert.AreEqual("lineColor", exception.ParamName);
        }

        [Test]
        public void Constructor_ExpectedValues()
        {
            // Setup
            const string content = "test";
            var fillColor = new SolidColorBrush(Colors.Blue);
            var lineColor = new SolidColorBrush(Colors.Gray);
            const int lineWidth = 3;
            const PointedTreeVertexType type = PointedTreeVertexType.None;
            const bool isSelectable = true;

            // Call
            var vertex = new PointedTreeElementVertex(content, fillColor, lineColor, lineWidth, type, isSelectable);

            // Assert
            Assert.IsInstanceOf<INotifyPropertyChanged>(vertex);
            Assert.AreEqual(content, vertex.Content);
            Assert.AreEqual(fillColor, vertex.FillColor);
            Assert.AreEqual(lineColor, vertex.LineColor);
            Assert.AreEqual(lineWidth, vertex.LineWidth);
            Assert.AreEqual(type, vertex.Type);
            Assert.AreEqual(isSelectable, vertex.IsSelectable);
            Assert.IsFalse(vertex.IsSelected);
            Assert.IsInstanceOf<VertexSelectedCommand>(vertex.VertexSelectedCommand);
        }

        [Test]
        public void IsSelected_SetNewValue_PropertyChangedEventFired()
        {
            // Setup
            var vertex = new PointedTreeElementVertex("test", new SolidColorBrush(Colors.Blue),
                                                      new SolidColorBrush(Colors.Gray), 3,
                                                      PointedTreeVertexType.Rectangle, true);

            var propertyChanged = 0;
            vertex.PropertyChanged += (sender, args) => propertyChanged++;

            // Call
            vertex.IsSelected = true;

            // Assert
            Assert.AreEqual(1, propertyChanged);
        }
    }
}