using AyCode.Core.Extensions;
using AyCode.Services.SignalRs;

namespace AyCode.Services.Tests.SignalRs;

[TestClass]
public class PostJsonDataMessageTests
{
    [TestMethod]
    public void Debug_ParameterBinary_RoundTrip_ForInt()
    {
        var parameters = new object[] { 42 };
        Console.WriteLine($"Parameters: [{string.Join(", ", parameters)}]");

        var bytes = SignalRSerializationHelper.SerializeParametersToBinary(parameters);
        Console.WriteLine($"Binary bytes: {bytes.Length}");

        // Simulate server deserialization with known target types
        var paramInfos = typeof(PostJsonDataMessageTests)
            .GetMethod(nameof(DummyIntMethod))!.GetParameters();
        var deserialized = SignalRSerializationHelper.DeserializeParametersFromBinary(bytes, paramInfos);

        Assert.IsNotNull(deserialized);
        Assert.AreEqual(1, deserialized.Length);
        Assert.AreEqual(42, deserialized[0]);
    }

    [TestMethod]
    [DataRow(42)]
    [DataRow("45")]
    [DataRow(true)]
    public void ParameterBinary_FullRoundTrip_AnyParameter(object testValue)
    {
        Console.WriteLine("=== Step 1: Client creates object[] ===");
        var parameters = new[] { testValue };

        Console.WriteLine("\n=== Step 2: Binary serialization ===");
        var bytes = SignalRSerializationHelper.SerializeParametersToBinary(parameters);
        Console.WriteLine($"Binary bytes: {bytes.Length}");

        Console.WriteLine("\n=== Step 3: Server deserializes with target type ===");
        var paramInfos = new[] { GetParamInfoForType(testValue.GetType()) };
        var serverParams = SignalRSerializationHelper.DeserializeParametersFromBinary(bytes, paramInfos);

        Console.WriteLine($"Server params[0]: '{serverParams[0]}' (type: {serverParams[0]?.GetType().Name})");

        Console.WriteLine("\n=== Step 4: Service method uses parameter ===");
        var serviceResult = $"{serverParams![0]}";
        Console.WriteLine($"Service result: '{serviceResult}'");

        Console.WriteLine("\n=== Step 5: Server creates response ===");
        var response = new SignalResponseDataMessage(100, SignalResponseStatus.Success, serviceResult, AyCode.Core.Serializers.Binaries.AcBinarySerializerOptions.Default);

        Console.WriteLine("\n=== Step 6: Response Binary ===");
        var responseBytes = response.ToBinary();

        Console.WriteLine("\n=== Step 7: Client deserializes response ===");
        var clientResponse = responseBytes.BinaryTo<SignalResponseDataMessage>();

        Console.WriteLine("\n=== Step 8: Client deserializes to string ===");
        var finalResult = clientResponse?.GetResponseData<string>();
        Console.WriteLine($"Final result: '{finalResult}'");
        Assert.AreEqual(testValue.ToString(), finalResult);
    }

    [TestMethod]
    public void ParameterBinary_MultipleParams_RoundTrip()
    {
        var guid = Guid.NewGuid();
        var parameters = new object[] { 42, "hello", true, guid };

        var bytes = SignalRSerializationHelper.SerializeParametersToBinary(parameters);

        var paramInfos = typeof(PostJsonDataMessageTests)
            .GetMethod(nameof(DummyMultiMethod))!.GetParameters();
        var deserialized = SignalRSerializationHelper.DeserializeParametersFromBinary(bytes, paramInfos);

        Assert.IsNotNull(deserialized);
        Assert.AreEqual(4, deserialized.Length);
        Assert.AreEqual(42, deserialized[0]);
        Assert.AreEqual("hello", deserialized[1]);
        Assert.AreEqual(true, deserialized[2]);
        Assert.AreEqual(guid, deserialized[3]);
    }

    // Dummy methods for ParameterInfo extraction
    public static void DummyIntMethod(int value) { }
    public static void DummyMultiMethod(int a, string b, bool c, Guid d) { }

    private static System.Reflection.ParameterInfo GetParamInfoForType(Type type)
    {
        // Find a dummy method with the matching parameter type
        if (type == typeof(int)) return typeof(PostJsonDataMessageTests).GetMethod(nameof(DummyInt))!.GetParameters()[0];
        if (type == typeof(string)) return typeof(PostJsonDataMessageTests).GetMethod(nameof(DummyString))!.GetParameters()[0];
        if (type == typeof(bool)) return typeof(PostJsonDataMessageTests).GetMethod(nameof(DummyBool))!.GetParameters()[0];
        throw new NotSupportedException($"No dummy method for type {type.Name}");
    }

    public static void DummyInt(int v) { }
    public static void DummyString(string v) { }
    public static void DummyBool(bool v) { }
}