using System;

using JetBrains.ProjectModel;
using JetBrains.ReSharper.UnitTestExplorer;

namespace MbUnit.ReSharperRunner.Elements
{
    internal class MbUnitChildTestElement : MbUnitTestElement, IEquatable<MbUnitChildTestElement>
    {
        private readonly MbUnitTestElement currentTest;

        public MbUnitChildTestElement(MbUnitTestElement parentTest, IUnitTestProvider provider,
                                      IProjectModelElement project, string declaringTypeName, string methodName,
                                      string childTestTyp)
            : base(provider, parentTest, parentTest.Fixture, project, declaringTypeName, methodName, childTestTyp
                )
        {
            currentTest = parentTest;
        }

        public MbUnitTestElement Test
        {
            get { return currentTest; }
        }

        #region IEquatable<MbUnitChildTestElement> Members

        public bool Equals(MbUnitChildTestElement mbUnitTestElement)
        {
            if (mbUnitTestElement == null)
            {
                return false;
            }
            if (!base.Equals(mbUnitTestElement))
            {
                return false;
            }
            if (!Equals(currentTest, mbUnitTestElement.currentTest))
            {
                return false;
            }
            return true;
        }

        #endregion

        public override string GetTitle()
        {
            return string.Format("{0}.{1}", currentTest.GetTitle(), MethodName);
        }

        public override bool Matches(string filter)
        {
            return
                (Fixture.Matches(filter) ||
                 (MethodName.IndexOf(filter, StringComparison.CurrentCultureIgnoreCase) != -1));
        }

        public override bool Equals(object obj)
        {
            if (ReferenceEquals(this, obj))
            {
                return true;
            }
            return Equals(obj as MbUnitTestElement);
        }

        public override int GetHashCode()
        {
            int result = base.GetHashCode();
            result = 29 * result + (currentTest != null ? currentTest.GetHashCode() : 0);
            return result;
        }
    }
}