using System;
using System.ComponentModel;
using DelftTools.Controls;
using DelftTools.Utils.Collections;
using System.Linq;

using NUnit.Framework;
using Rhino.Mocks;
using Wti.Data;
using Wti.Forms.NodePresenters;

namespace Wti.Forms.Test.NodePresenters
{
    public class PipingFailureMechanismNodePresenterTest
    {
        [Test]
        public void DefaultConstructor_ExpectedValues()
        {
            // Call
            var nodePresenter = new PipingFailureMechanismNodePresenter();

            // Assert
            Assert.IsInstanceOf<ITreeNodePresenter>(nodePresenter);
            Assert.IsNull(nodePresenter.TreeView);
            Assert.AreEqual(typeof(PipingFailureMechanism), nodePresenter.NodeTagType);
        }

        [Test]
        public void UpdateNode_WithData_InitializeNode()
        {
            // Setup
            const string nodeName = "Faalmechanisme piping";

            var mocks = new MockRepository();
            var pipingNode = mocks.Stub<ITreeNode>();
            mocks.ReplayAll();

            var nodePresenter = new PipingFailureMechanismNodePresenter();

            var pipingData = new PipingData();

            // Call
            nodePresenter.UpdateNode(null, pipingNode, pipingData);

            // Assert
            Assert.AreEqual(nodeName, pipingNode.Text);
            Assert.AreEqual(16, pipingNode.Image.Height);
            Assert.AreEqual(16, pipingNode.Image.Width);
        }

        [Test]
        public void GetChildNodeObjects_Always_ReturnChildDataNodes()
        {
            // Setup
            var mocks = new MockRepository();
            var nodeMock = mocks.StrictMock<ITreeNode>();
            mocks.ReplayAll();

            var nodePresenter = new PipingFailureMechanismNodePresenter();

            var pipingFailureMechanism = new PipingFailureMechanism();

            // Call
            var children = nodePresenter.GetChildNodeObjects(pipingFailureMechanism, nodeMock).OfType<object>().ToArray();

            // Assert
            Assert.AreEqual(2, children.Length);
            Assert.AreSame(pipingFailureMechanism.SurfaceLines, children[0]);
            Assert.AreSame(pipingFailureMechanism.PipingData, children[1]);
            mocks.VerifyAll(); // Expect no calls on tree node
        }

        [Test]
        public void CanRenameNode_Always_ReturnFalse()
        {
            // Setup
            var mocks = new MockRepository();
            var nodeMock = mocks.StrictMock<ITreeNode>();
            mocks.ReplayAll();

            var nodePresenter = new PipingFailureMechanismNodePresenter();

            // Call
            var renameAllowed = nodePresenter.CanRenameNode(nodeMock);

            // Assert
            Assert.IsFalse(renameAllowed);
            mocks.VerifyAll(); // Expect no calls on tree node
        }

        [Test]
        public void CanRenameNodeTo_Always_ReturnFalse()
        {
            // Setup
            var mocks = new MockRepository();
            var nodeMock = mocks.StrictMock<ITreeNode>();
            mocks.ReplayAll();

            var nodePresenter = new PipingFailureMechanismNodePresenter();

            // Call
            var renameAllowed = nodePresenter.CanRenameNodeTo(nodeMock, "<Insert New Name Here>");

            // Assert
            Assert.IsFalse(renameAllowed);
            mocks.ReplayAll(); // Expect no calls on tree node
        }

        [Test]
        public void OnNodeRenamed_Always_ThrowInvalidOperationException()
        {
            // Setup
            var mocks = new MockRepository();
            var nodeMock = mocks.StrictMock<ITreeNode>();
            mocks.ReplayAll();

            var nodePresenter = new PipingFailureMechanismNodePresenter();

            // Call
            TestDelegate call = () => { nodePresenter.OnNodeRenamed(nodeMock, "<Insert New Name Here>"); };

            // Assert
            var exception = Assert.Throws<InvalidOperationException>(call);
            var expectedMessage = string.Format("Cannot rename tree node of type {0}.", nodePresenter.GetType().Name);
            Assert.AreEqual(expectedMessage, exception.Message);
            mocks.ReplayAll(); // Expect no calls on tree node
        }

        [Test]
        public void OnNodeChecked_Always_DoNothing()
        {
            // Setup
            var mocks = new MockRepository();
            var nodeMock = mocks.StrictMock<ITreeNode>();
            mocks.ReplayAll();

            var nodePresenter = new PipingFailureMechanismNodePresenter();

            // Call
            nodePresenter.OnNodeChecked(nodeMock);

            // Assert
            mocks.VerifyAll(); // Expect no calls on tree node
        }

        [Test]
        public void CanDrag_Always_ReturnNone()
        {
            // Setup
            var mocks = new MockRepository();
            var dataMock = mocks.StrictMock<object>();
            mocks.ReplayAll();

            var nodePresenter = new PipingFailureMechanismNodePresenter();

            // Call
            DragOperations dragAllowed = nodePresenter.CanDrag(dataMock);

            // Assert
            Assert.AreEqual(DragOperations.None, dragAllowed);
            mocks.VerifyAll();
        }

        [Test]
        public void CanDrop_Always_ReturnNone()
        {
            // Setup
            var mocks = new MockRepository();
            var dataMock = mocks.StrictMock<object>();
            var sourceMock = mocks.StrictMock<ITreeNode>();
            var targetMock = mocks.StrictMock<ITreeNode>();
            mocks.ReplayAll();

            var nodePresenter = new PipingFailureMechanismNodePresenter();

            // Call
            DragOperations dropAllowed = nodePresenter.CanDrop(dataMock, sourceMock, targetMock, DragOperations.Move);

            // Assert
            Assert.AreEqual(DragOperations.None, dropAllowed);
            mocks.VerifyAll(); // Expect no calls on mocks.
        }

        [Test]
        public void CanInsert_Always_ReturnFalse()
        {
            // Setup
            var mocks = new MockRepository();
            var dataMock = mocks.StrictMock<object>();
            var sourceMock = mocks.StrictMock<ITreeNode>();
            var targetMock = mocks.StrictMock<ITreeNode>();
            mocks.ReplayAll();

            var nodePresenter = new PipingFailureMechanismNodePresenter();

            // Call
            bool insertionAllowed = nodePresenter.CanInsert(dataMock, sourceMock, targetMock);

            // Assert
            Assert.IsFalse(insertionAllowed);
            mocks.VerifyAll(); // Expect no calls on arguments
        }

        [Test]
        public void OnDragDrop_Always_DoNothing()
        {
            // Setup
            var mocks = new MockRepository();
            var dataMock = mocks.StrictMock<object>();
            var sourceParentNodeMock = mocks.StrictMock<ITreeNode>();
            var targetParentNodeDataMock = mocks.StrictMock<ITreeNode>();
            mocks.ReplayAll();

            var nodePresenter = new PipingFailureMechanismNodePresenter();

            // Call
            nodePresenter.OnDragDrop(dataMock, sourceParentNodeMock, targetParentNodeDataMock, DragOperations.Move, 2);

            // Assert
            mocks.VerifyAll(); // Expect no calls on arguments
        }

        [Test]
        public void OnNodeSelected_Always_DoNothing()
        {
            // Setup
            var mocks = new MockRepository();
            var dataMock = mocks.StrictMock<object>();
            mocks.ReplayAll();

            var nodePresenter = new PipingFailureMechanismNodePresenter();

            // Call
            nodePresenter.OnNodeSelected(dataMock);

            // Assert
            mocks.VerifyAll(); // Expect no calls on arguments
        }

        [Test]
        public void GetContextMenu_Always_ReturnsNull()
        {
            // Setup
            var mocks = new MockRepository();
            var nodeMock = mocks.StrictMock<ITreeNode>();
            var dataMock = mocks.StrictMock<PipingData>();

            var nodePresenter = new PipingFailureMechanismNodePresenter();

            mocks.ReplayAll();

            // Call
            var contextMenu = nodePresenter.GetContextMenu(nodeMock, dataMock);

            // Assert
            Assert.IsNull(contextMenu);
            mocks.VerifyAll(); // Expect no calls on arguments
        }

        [Test]
        public void OnPropertyChange_Always_DoNothing()
        {
            // Setup
            var mocks = new MockRepository();
            var dataMock = mocks.StrictMock<object>();
            var nodeMock = mocks.StrictMock<ITreeNode>();
            var eventArgsMock = mocks.StrictMock<PropertyChangedEventArgs>("");
            mocks.ReplayAll();

            var nodePresenter = new PipingFailureMechanismNodePresenter();

            // Call
            nodePresenter.OnPropertyChanged(dataMock, nodeMock, eventArgsMock);

            // Assert
            mocks.VerifyAll(); // Expect no calls on arguments
        }

        [Test]
        public void OnCollectionChange_Always_DoNothing()
        {
            // Setup
            var mocks = new MockRepository();
            var dataMock = mocks.StrictMock<object>();
            var eventArgsMock = mocks.StrictMock<NotifyCollectionChangingEventArgs>();
            mocks.ReplayAll();

            var nodePresenter = new PipingFailureMechanismNodePresenter();

            // Call
            nodePresenter.OnCollectionChanged(dataMock, eventArgsMock);

            // Assert
            mocks.VerifyAll(); // Expect no calls on arguments
        }

        [Test]
        public void CanRemove_PipingFailureMechanism_ReturnTrue()
        {
            // Setup
            var mocks = new MockRepository();
            var dataMock = mocks.StrictMock<object>();
            var nodeMock = mocks.StrictMock<PipingFailureMechanism>();
            mocks.ReplayAll();

            var nodePresenter = new PipingFailureMechanismNodePresenter();

            // Call
            bool removalAllowed = nodePresenter.CanRemove(dataMock, nodeMock);

            // Assert
            Assert.IsTrue(removalAllowed);
            mocks.VerifyAll(); // Expect no calls on arguments
        }

        [Test]
        public void CanRemove_NotPipingFailureMechanism_ReturnFalse()
        {
            // Setup
            var mocks = new MockRepository();
            var dataMock = mocks.StrictMock<object>();
            var nodeMock = mocks.StrictMock<object>();
            mocks.ReplayAll();

            var nodePresenter = new PipingFailureMechanismNodePresenter();

            // Call
            bool removalAllowed = nodePresenter.CanRemove(dataMock, nodeMock);

            // Assert
            Assert.IsFalse(removalAllowed);
            mocks.VerifyAll(); // Expect no calls on arguments
        }

        [Test]
        public void RemoveNodeData_PipingFailureMechanism_PipingFailureMechanismRemovedFromWtiProject()
        {
            // Setup
            var project = new WtiProject();
            project.InitializePipingFailureMechanism();

            var nodePresenter = new PipingFailureMechanismNodePresenter();

            // Call
            bool removalSuccesful = nodePresenter.RemoveNodeData(project, new PipingFailureMechanism());

            // Assert
            Assert.IsTrue(removalSuccesful);
            Assert.IsNull(project.PipingFailureMechanism);
        }

        [Test]
        public void RemoveNodeData_NotPipingFailureMechanism_PipingFailureMechanismStillAssignedToWtiProject()
        {
            // Setup
            var project = new WtiProject();
            project.InitializePipingFailureMechanism();
            var expectedFailureMechanism = project.PipingFailureMechanism;

            var nodePresenter = new PipingFailureMechanismNodePresenter();

            // Call
            bool removalSuccesful = nodePresenter.RemoveNodeData(project, new object());

            // Assert
            Assert.IsFalse(removalSuccesful);
            Assert.AreSame(expectedFailureMechanism, project.PipingFailureMechanism);
        }
    }
}