// ***********************************************************************
// Copyright (c) 2007 Charlie Poole
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
// 
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
// ***********************************************************************

using System;
#if CLR_2_0 || CLR_4_0
using System.Collections.Generic;
#else
using System.Collections;
#endif
using System.Reflection;
using NUnit.Framework.Api;
using NUnit.Framework.Internal.Commands;
using NUnit.Framework.Internal.WorkItems;

namespace NUnit.Framework.Internal
{
    /// <summary>
    /// TestSuite represents a composite test, which contains other tests.
    /// </summary>
	public class TestSuite : Test
	{
		#region Fields

		/// <summary>
		/// Our collection of child tests
		/// </summary>
#if CLR_2_0 || CLR_4_0
        private List<ITest> tests = new List<ITest>();
#else
        private ArrayList tests = new ArrayList();
#endif

        /// <summary>
        /// Set to true to suppress sorting this suite's contents
        /// </summary>
        protected bool maintainTestOrder;

        /// <summary>
        /// Argument list for use in creating the fixture.
        /// </summary>
        internal object[] arguments;

        #endregion

		#region Constructors

        /// <summary>
        /// Initializes a new instance of the <see cref="TestSuite"/> class.
        /// </summary>
        /// <param name="name">The name of the suite.</param>
		public TestSuite( string name ) 
			: base( name ) { }

        /// <summary>
        /// Initializes a new instance of the <see cref="TestSuite"/> class.
        /// </summary>
        /// <param name="parentSuiteName">Name of the parent suite.</param>
        /// <param name="name">The name of the suite.</param>
		public TestSuite( string parentSuiteName, string name ) 
			: base( parentSuiteName, name ) { }

        /// <summary>
        /// Initializes a new instance of the <see cref="TestSuite"/> class.
        /// </summary>
        /// <param name="fixtureType">Type of the fixture.</param>
        public TestSuite(Type fixtureType)
            : this(fixtureType, null) { }

        /// <summary>
        /// Initializes a new instance of the <see cref="TestSuite"/> class.
        /// </summary>
        /// <param name="fixtureType">Type of the fixture.</param>
        /// <param name="arguments">The arguments.</param>
        public TestSuite(Type fixtureType, object[] arguments)
            : base(fixtureType)
        {
            string name = TypeHelper.GetDisplayName(fixtureType, arguments);
            this.Name = name;
            
            this.FullName = name;
            string nspace = fixtureType.Namespace;
            if (nspace != null && nspace != "")
                this.FullName = nspace + "." + name;
            this.arguments = arguments;
        }

        #endregion

		#region Public Methods

        /// <summary>
        /// Sorts tests under this suite.
        /// </summary>
		public void Sort()
		{
            if (!maintainTestOrder)
            {
                this.tests.Sort();

                foreach (Test test in Tests)
                {
                    TestSuite suite = test as TestSuite;
                    if (suite != null)
                        suite.Sort();
                }
            }
		}

#if false
        /// <summary>
        /// Sorts tests under this suite using the specified comparer.
        /// </summary>
        /// <param name="comparer">The comparer.</param>
        public void Sort(IComparer comparer)
        {
			this.tests.Sort(comparer);

			foreach( Test test in Tests )
			{
				TestSuite suite = test as TestSuite;
				if ( suite != null )
					suite.Sort(comparer);
			}
		}
#endif

        /// <summary>
        /// Adds a test to the suite.
        /// </summary>
        /// <param name="test">The test.</param>
		public void Add( Test test ) 
		{
//			if( test.RunState == RunState.Runnable )
//			{
//				test.RunState = this.RunState;
//				test.IgnoreReason = this.IgnoreReason;
//			}
			test.Parent = this;
			tests.Add(test);
		}

#if !NUNITLITE
        /// <summary>
        /// Adds a pre-constructed test fixture to the suite.
        /// </summary>
        /// <param name="fixture">The fixture.</param>
		public void Add( object fixture )
		{
			Test test = TestFixtureBuilder.BuildFrom( fixture );
			if ( test != null )
				Add( test );
		}
#endif

        /// <summary>
        /// Gets the command to be executed before any of
        /// the child tests are run.
        /// </summary>
        /// <returns>A TestCommand</returns>
        public virtual TestCommand GetOneTimeSetUpCommand()
        {
            if (RunState != RunState.Runnable && RunState != RunState.Explicit)
                return new SkipCommand(this);

            TestCommand command = new OneTimeSetUpCommand(this);

            if (this.FixtureType != null)
            {
                IApplyToContext[] changes = (IApplyToContext[])this.FixtureType.GetCustomAttributes(typeof(IApplyToContext), true);
                if (changes.Length > 0)
                    command = new ApplyChangesToContextCommand(command, changes);
            }

            return command;
        }

        /// <summary>
        /// Gets the command to be executed after all of the
        /// child tests are run.
        /// </summary>
        /// <returns>A TestCommand</returns>
        public virtual TestCommand GetOneTimeTearDownCommand()
        {
            TestCommand command = new OneTimeTearDownCommand(this);

            return command;
        }

		#endregion

		#region Properties

        /// <summary>
        /// Gets this test's child tests
        /// </summary>
        /// <value>The list of child tests</value>
#if CLR_2_0 || CLR_4_0
        public override IList<ITest> Tests 
#else
        public override IList Tests
#endif
		{
			get { return tests; }
		}

        /// <summary>
        /// Gets a count of test cases represented by
        /// or contained under this test.
        /// </summary>
        /// <value></value>
		public override int TestCaseCount
		{
			get
			{
				int count = 0;

				foreach(Test test in Tests)
				{
					count += test.TestCaseCount;
				}
				return count;
			}
		}

        #endregion

		#region Test Overrides

        /// <summary>
        /// Overridden to return a TestSuiteResult.
        /// </summary>
        /// <returns>A TestResult for this test.</returns>
        public override TestResult MakeTestResult()
        {
            return new TestSuiteResult(this);
        }

        /// <summary>
        /// Creates a WorkItem for executing this test.
        /// </summary>
        /// <param name="childFilter">A filter to be used in selecting child tests</param>
        /// <returns>A new WorkItem</returns>
        public override WorkItem CreateWorkItem(ITestFilter childFilter, FinallyDelegate finD)
        {
            //return RunState == Api.RunState.Runnable || RunState == Api.RunState.Explicit
            //    ? (WorkItem)new CompositeWorkItem(this, childFilter)
            //    : (WorkItem)new SimpleWorkItem(this);
            return new CompositeWorkItem(this, childFilter, finD);
        }

        /// <summary>
        /// Gets a bool indicating whether the current test
        /// has any descendant tests.
        /// </summary>
        public override bool HasChildren
        {
            get
            {
                return tests.Count > 0;
            }
        }

        /// <summary>
        /// Gets the name used for the top-level element in the
        /// XML representation of this test
        /// </summary>
        public override string XmlElementName
        {
            get { return "test-suite"; }
        }

        /// <summary>
        /// Returns an XmlNode representing the current result after
        /// adding it as a child of the supplied parent node.
        /// </summary>
        /// <param name="parentNode">The parent node.</param>
        /// <param name="recursive">If true, descendant results are included</param>
        /// <returns></returns>
        public override XmlNode AddToXml(XmlNode parentNode, bool recursive)
        {
            XmlNode thisNode = parentNode.AddElement("test-suite");
            thisNode.AddAttribute("type", this.TestType);

            PopulateTestNode(thisNode, recursive);
            thisNode.AddAttribute("testcasecount", this.TestCaseCount.ToString());


            if (recursive)
                foreach (Test test in this.Tests)
                    test.AddToXml(thisNode, recursive);

            return thisNode;
        }

        #endregion
    }
}
