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using System;
using System.Collections.Generic;
using System.Text;
using NUnit.Framework;
using XenAdmin.Controls;
using XenAdmin.Controls.MainWindowControls;

using XenAPI;
using XenAdmin;
using XenAdmin.Core;


namespace XenAdminTests.MiscTests
{
    [TestFixture, Category(TestCategories.UICategoryB)]
    public class ShowHideTests : MainWindowLauncher_TestFixture
    {
        public ShowHideTests()
            : base(true, "state4.xml")
        { }

        private ComparableList<IXenObject> Populate()
        {
            VirtualTreeNode rootNode = MW(() => new MainWindowTreeBuilder(new FlickerFreeTreeView()).CreateNewRootNode(new NavigationPane().Search, NavigationPane.NavigationMode.Infrastructure));
            List<VirtualTreeNode> nodes = new List<VirtualTreeNode>(rootNode.Descendants);
            return new ComparableList<IXenObject>(nodes.ConvertAll(n => (IXenObject)n.Tag));
        }

        /// <summary>
        /// Calculates the nodes that should be visible in the main window tree view when the specified xen object is hidden.
        /// </summary>
        /// <param name="hiddenObject">The hidden object.</param>
        private ComparableList<IXenObject> CalculatePopulateWithHiddenObject(IXenObject hiddenObject)
        {
            VirtualTreeNode rootNode = MW(() => new MainWindowTreeBuilder(new FlickerFreeTreeView()).CreateNewRootNode(new NavigationPane().Search, NavigationPane.NavigationMode.Infrastructure));

            List<VirtualTreeNode> nodes = new List<VirtualTreeNode>(rootNode.Descendants);

            nodes.RemoveAll(n => hiddenObject.Equals(n.Tag));
            nodes.RemoveAll(n => new List<VirtualTreeNode>(n.Ancestors).Find(nn => hiddenObject.Equals(nn.Tag)) != null);
            return new ComparableList<IXenObject>(nodes.ConvertAll(n => (IXenObject)n.Tag));
        }

        [Test]
        public void TestHideXenObject()
        {
            var xenObjectsToHide = Populate();

            foreach (var xenObject in xenObjectsToHide)
            {
                ComparableList<IXenObject> calc = CalculatePopulateWithHiddenObject(xenObject);

                Program.HideObject(xenObject.opaque_ref);
                Assert.AreEqual(0, calc.CompareTo(Populate()), "Incorrect hidden nodes.");
                Program.ShowObject(xenObject.opaque_ref);
            }
        }
    }
}