using System;
using System.Threading.Tasks;

namespace TestNamespace
{
    /// <summary>
    /// A test class with various members for testing the mcilspy MCP server.
    /// </summary>
    public class TestClass
    {
        // Constants for testing string search
        public const string API_KEY = "test-secret-key";
        public const string BASE_URL = "https://api.example.com";
        public const int MAX_RETRIES = 3;

        // Fields
        public static readonly string BaseUrl = "https://api.example.com";
        private int _privateField;
        protected string _protectedField;
        internal double _internalField;

        // Properties
        public string Name { get; set; }
        public int Age { get; private set; }
        public virtual bool IsActive { get; set; }

        // Events
        public event EventHandler OnChange;
        public event EventHandler<string> OnMessage;

        // Constructors
        public TestClass()
        {
            Name = "Default";
            Age = 0;
        }

        public TestClass(string name, int age)
        {
            Name = name;
            Age = age;
        }

        // Methods
        public void DoSomething()
        {
            Console.WriteLine("Hello from DoSomething");
            OnChange?.Invoke(this, EventArgs.Empty);
        }

        public string GetGreeting()
        {
            return $"Hello, {Name}!";
        }

        public static int Add(int a, int b)
        {
            return a + b;
        }

        protected virtual void OnPropertyChanged(string propertyName)
        {
            OnMessage?.Invoke(this, propertyName);
        }

        private void PrivateMethod()
        {
            _privateField = 42;
        }
    }

    /// <summary>
    /// Interface for testing interface discovery.
    /// </summary>
    public interface ITestService
    {
        void Execute();
        Task<string> ExecuteAsync();
        string ServiceName { get; }
    }

    /// <summary>
    /// Another interface for inheritance testing.
    /// </summary>
    public interface IConfigurable
    {
        void Configure(string settings);
    }

    /// <summary>
    /// Struct for testing struct discovery.
    /// </summary>
    public struct TestStruct
    {
        public int Value;
        public string Label;

        public TestStruct(int value, string label)
        {
            Value = value;
            Label = label;
        }

        public override string ToString() => $"{Label}: {Value}";
    }

    /// <summary>
    /// Enum for testing enum discovery.
    /// </summary>
    public enum TestEnum
    {
        None = 0,
        First = 1,
        Second = 2,
        Third = 3
    }

    /// <summary>
    /// Delegate for testing delegate discovery.
    /// </summary>
    public delegate void TestDelegate(string message);

    /// <summary>
    /// Delegate with return type.
    /// </summary>
    public delegate bool ValidationDelegate<T>(T value);

    /// <summary>
    /// Service implementation for testing class relationships.
    /// </summary>
    public class TestServiceImpl : ITestService, IConfigurable
    {
        private string _config;

        public string ServiceName => "TestService";

        public void Execute()
        {
            Console.WriteLine($"Executing with config: {_config}");
        }

        public Task<string> ExecuteAsync()
        {
            return Task.FromResult($"Async result from {ServiceName}");
        }

        public void Configure(string settings)
        {
            _config = settings;
        }
    }

    /// <summary>
    /// Nested class for testing nested type discovery.
    /// </summary>
    public class OuterClass
    {
        public class NestedClass
        {
            public string Value { get; set; }
        }

        private class PrivateNestedClass
        {
            public int Secret { get; set; }
        }

        public NestedClass CreateNested() => new NestedClass();
    }

    /// <summary>
    /// Abstract class for testing abstract type discovery.
    /// </summary>
    public abstract class AbstractBase
    {
        public abstract void AbstractMethod();
        public virtual void VirtualMethod() { }

        protected string BaseProperty { get; set; }
    }

    /// <summary>
    /// Derived class for testing inheritance.
    /// </summary>
    public class DerivedClass : AbstractBase
    {
        public override void AbstractMethod()
        {
            Console.WriteLine("Implemented abstract method");
        }

        public override void VirtualMethod()
        {
            base.VirtualMethod();
            Console.WriteLine("Overridden virtual method");
        }
    }
}

namespace TestNamespace.SubNamespace
{
    /// <summary>
    /// Class in a sub-namespace for testing namespace filtering.
    /// </summary>
    public class SubClass
    {
        public const string CONNECTION_STRING = "Server=localhost;Database=test";

        public void SubMethod()
        {
            Console.WriteLine("Sub namespace method");
        }
    }
}