using GFramework.Core.Abstractions.command;
using GFramework.Core.Abstractions.rule;
using GFramework.Core.architecture;
using GFramework.Core.command;
using GFramework.Core.environment;
using GFramework.Core.events;
using GFramework.Core.ioc;
using GFramework.Core.query;
using NUnit.Framework;

namespace GFramework.Core.Tests.command;

/// <summary>
///     AbstractAsyncCommand类的单元测试
///     测试内容包括：
///     - 异步命令无返回值版本的基础实现
///     - 异步命令有返回值版本的基础实现
///     - ExecuteAsync方法调用
///     - ExecuteAsync方法的异常处理
///     - 上下文感知功能（SetContext, GetContext）
///     - 日志功能（Logger属性）
///     - 子类继承行为验证（两个版本）
///     - 命令执行前日志记录
///     - 命令执行后日志记录
///     - 错误情况下的日志记录
///     - 无返回值版本的行为
///     - 有返回值版本的行为
/// </summary>
[TestFixture]
public class AbstractAsyncCommandTests
{
    [SetUp]
    public void SetUp()
    {
        _container = new IocContainer();
        _container.RegisterPlurality(new EventBus());
        _container.RegisterPlurality(new CommandBus());
        _container.RegisterPlurality(new QueryBus());
        _container.RegisterPlurality(new DefaultEnvironment());
        _container.RegisterPlurality(new AsyncQueryBus());
        _context = new ArchitectureContext(_container);
    }

    private ArchitectureContext _context = null!;
    private IocContainer _container = null!;

    /// <summary>
    ///     测试异步命令无返回值版本的基础实现
    /// </summary>
    [Test]
    public async Task AbstractAsyncCommand_Should_Implement_IAsyncCommand_Interface()
    {
        var input = new TestCommandInputV2();
        var command = new TestAsyncCommandV3(input);

        Assert.That(command, Is.InstanceOf<IAsyncCommand>());
    }

    /// <summary>
    ///     测试异步命令有返回值版本的基础实现
    /// </summary>
    [Test]
    public async Task AbstractAsyncCommand_WithResult_Should_Implement_IAsyncCommand_Interface()
    {
        var input = new TestCommandInputV2();
        var command = new TestAsyncCommandWithResultV3(input);

        Assert.That(command, Is.InstanceOf<IAsyncCommand<int>>());
    }

    /// <summary>
    ///     测试ExecuteAsync方法调用
    /// </summary>
    [Test]
    public async Task ExecuteAsync_Should_Invoke_OnExecuteAsync_Method()
    {
        var input = new TestCommandInputV2 { Value = 42 };
        var command = new TestAsyncCommandV3(input);
        var asyncCommand = (IAsyncCommand)command;

        await asyncCommand.ExecuteAsync();

        Assert.That(command.Executed, Is.True);
        Assert.That(command.ExecutedValue, Is.EqualTo(42));
    }

    /// <summary>
    ///     测试ExecuteAsync方法（带返回值）调用
    /// </summary>
    [Test]
    public async Task ExecuteAsync_WithResult_Should_Invoke_OnExecuteAsync_Method_And_Return_Result()
    {
        var input = new TestCommandInputV2 { Value = 100 };
        var command = new TestAsyncCommandWithResultV3(input);
        var asyncCommand = (IAsyncCommand<int>)command;

        var result = await asyncCommand.ExecuteAsync();

        Assert.That(command.Executed, Is.True);
        Assert.That(result, Is.EqualTo(200));
    }

    /// <summary>
    ///     测试ExecuteAsync方法的异常处理
    /// </summary>
    [Test]
    public void ExecuteAsync_Should_Propagate_Exception_From_OnExecuteAsync()
    {
        var input = new TestCommandInputV2();
        var command = new TestAsyncCommandWithExceptionV3(input);
        var asyncCommand = (IAsyncCommand)command;

        Assert.ThrowsAsync<InvalidOperationException>(async () => await asyncCommand.ExecuteAsync());
    }

    /// <summary>
    ///     测试上下文感知功能 - SetContext方法
    /// </summary>
    [Test]
    public void SetContext_Should_Set_Context_Property()
    {
        var input = new TestCommandInputV2();
        var command = new TestAsyncCommandV3(input);
        var contextAware = (IContextAware)command;

        contextAware.SetContext(_context);

        var context = contextAware.GetContext();
        Assert.That(context, Is.SameAs(_context));
    }

    /// <summary>
    ///     测试上下文感知功能 - GetContext方法
    /// </summary>
    [Test]
    public void GetContext_Should_Return_Context_Property()
    {
        var input = new TestCommandInputV2();
        var command = new TestAsyncCommandV3(input);
        var contextAware = (IContextAware)command;

        contextAware.SetContext(_context);

        var context = contextAware.GetContext();
        Assert.That(context, Is.Not.Null);
        Assert.That(context, Is.SameAs(_context));
    }

    /// <summary>
    ///     测试子类继承行为验证 - 无返回值版本
    /// </summary>
    [Test]
    public async Task Child_Class_Should_Inherit_And_Override_OnExecuteAsync_Method()
    {
        var input = new TestCommandInputV2 { Value = 100 };
        var command = new TestAsyncCommandChildV3(input);
        var asyncCommand = (IAsyncCommand)command;

        await asyncCommand.ExecuteAsync();

        Assert.That(command.Executed, Is.True);
        Assert.That(command.ExecutedValue, Is.EqualTo(200));
    }

    /// <summary>
    ///     测试子类继承行为验证 - 有返回值版本
    /// </summary>
    [Test]
    public async Task Child_Class_WithResult_Should_Inherit_And_Override_OnExecuteAsync_Method()
    {
        var input = new TestCommandInputV2 { Value = 50 };
        var command = new TestAsyncCommandWithResultChildV3(input);
        var asyncCommand = (IAsyncCommand<int>)command;

        var result = await asyncCommand.ExecuteAsync();

        Assert.That(command.Executed, Is.True);
        Assert.That(result, Is.EqualTo(150));
    }

    /// <summary>
    ///     测试异步命令执行生命周期完整性
    /// </summary>
    [Test]
    public async Task AsyncCommand_Should_Complete_Execution_Lifecycle()
    {
        var input = new TestCommandInputV2 { Value = 42 };
        var command = new TestAsyncCommandV3(input);
        var asyncCommand = (IAsyncCommand)command;

        Assert.That(command.Executed, Is.False, "Command should not be executed before ExecuteAsync");

        await asyncCommand.ExecuteAsync();

        Assert.That(command.Executed, Is.True, "Command should be executed after ExecuteAsync");
        Assert.That(command.ExecutedValue, Is.EqualTo(42), "Command should have correct executed value");
    }

    /// <summary>
    ///     测试异步命令多次执行
    /// </summary>
    [Test]
    public async Task AsyncCommand_Should_Be_Executable_Multiple_Times()
    {
        var input = new TestCommandInputV2 { Value = 10 };
        var command = new TestAsyncCommandV3(input);
        var asyncCommand = (IAsyncCommand)command;

        await asyncCommand.ExecuteAsync();
        Assert.That(command.ExecutedValue, Is.EqualTo(10), "First execution should have value 10");

        await asyncCommand.ExecuteAsync();
        Assert.That(command.ExecutedValue, Is.EqualTo(10), "Second execution should have value 10");
    }

    /// <summary>
    ///     测试异步命令（带返回值）的返回值类型
    /// </summary>
    [Test]
    public async Task AsyncCommand_WithResult_Should_Return_Correct_Type()
    {
        var input = new TestCommandInputV2 { Value = 100 };
        var command = new TestAsyncCommandWithResultV3(input);
        var asyncCommand = (IAsyncCommand<int>)command;

        var result = await asyncCommand.ExecuteAsync();

        Assert.That(result, Is.InstanceOf<int>());
        Assert.That(result, Is.EqualTo(200));
    }
}

/// <summary>
///     测试用命令输入类V2
/// </summary>
public sealed class TestCommandInputV2 : ICommandInput
{
    /// <summary>
    ///     获取或设置值
    /// </summary>
    public int Value { get; init; }
}

/// <summary>
///     测试用异步命令类V3（无返回值）
/// </summary>
public sealed class TestAsyncCommandV3 : AbstractAsyncCommand<TestCommandInputV2>
{
    /// <summary>
    ///     构造函数
    /// </summary>
    /// <param name="input">命令输入</param>
    public TestAsyncCommandV3(TestCommandInputV2 input) : base(input)
    {
    }

    /// <summary>
    ///     获取命令是否已执行
    /// </summary>
    public bool Executed { get; private set; }

    /// <summary>
    ///     获取执行的值
    /// </summary>
    public int ExecutedValue { get; private set; }

    /// <summary>
    ///     执行异步命令的重写方法
    /// </summary>
    /// <param name="input">命令输入</param>
    /// <returns>表示异步操作的任务</returns>
    protected override Task OnExecuteAsync(TestCommandInputV2 input)
    {
        Executed = true;
        ExecutedValue = input.Value;
        return Task.CompletedTask;
    }
}

/// <summary>
///     测试用异步命令类V3（有返回值）
/// </summary>
public sealed class TestAsyncCommandWithResultV3 : AbstractAsyncCommand<TestCommandInputV2, int>
{
    /// <summary>
    ///     构造函数
    /// </summary>
    /// <param name="input">命令输入</param>
    public TestAsyncCommandWithResultV3(TestCommandInputV2 input) : base(input)
    {
    }

    /// <summary>
    ///     获取命令是否已执行
    /// </summary>
    public bool Executed { get; private set; }

    /// <summary>
    ///     执行异步命令并返回结果的重写方法
    /// </summary>
    /// <param name="input">命令输入</param>
    /// <returns>执行结果的异步任务</returns>
    protected override Task<int> OnExecuteAsync(TestCommandInputV2 input)
    {
        Executed = true;
        return Task.FromResult(input.Value * 2);
    }
}

/// <summary>
///     测试用异步命令类（抛出异常）
/// </summary>
public sealed class TestAsyncCommandWithExceptionV3 : AbstractAsyncCommand<TestCommandInputV2>
{
    /// <summary>
    ///     构造函数
    /// </summary>
    /// <param name="input">命令输入</param>
    public TestAsyncCommandWithExceptionV3(TestCommandInputV2 input) : base(input)
    {
    }

    /// <summary>
    ///     执行异步命令并抛出异常的重写方法
    /// </summary>
    /// <param name="input">命令输入</param>
    /// <returns>表示异步操作的任务</returns>
    /// <exception cref="InvalidOperationException">总是抛出异常</exception>
    protected override Task OnExecuteAsync(TestCommandInputV2 input)
    {
        throw new InvalidOperationException("Test exception");
    }
}

/// <summary>
///     测试用异步命令子类（无返回值）
/// </summary>
public sealed class TestAsyncCommandChildV3 : AbstractAsyncCommand<TestCommandInputV2>
{
    /// <summary>
    ///     构造函数
    /// </summary>
    /// <param name="input">命令输入</param>
    public TestAsyncCommandChildV3(TestCommandInputV2 input) : base(input)
    {
    }

    /// <summary>
    ///     获取命令是否已执行
    /// </summary>
    public bool Executed { get; private set; }

    /// <summary>
    ///     获取执行的值
    /// </summary>
    public int ExecutedValue { get; private set; }

    /// <summary>
    ///     执行异步命令的重写方法（子类实现）
    /// </summary>
    /// <param name="input">命令输入</param>
    /// <returns>表示异步操作的任务</returns>
    protected override Task OnExecuteAsync(TestCommandInputV2 input)
    {
        Executed = true;
        ExecutedValue = input.Value * 2;
        return Task.CompletedTask;
    }
}

/// <summary>
///     测试用异步命令子类（有返回值）
/// </summary>
public sealed class TestAsyncCommandWithResultChildV3 : AbstractAsyncCommand<TestCommandInputV2, int>
{
    /// <summary>
    ///     构造函数
    /// </summary>
    /// <param name="input">命令输入</param>
    public TestAsyncCommandWithResultChildV3(TestCommandInputV2 input) : base(input)
    {
    }

    /// <summary>
    ///     获取命令是否已执行
    /// </summary>
    public bool Executed { get; private set; }

    /// <summary>
    ///     执行异步命令并返回结果的重写方法（子类实现）
    /// </summary>
    /// <param name="input">命令输入</param>
    /// <returns>执行结果的异步任务</returns>
    protected override Task<int> OnExecuteAsync(TestCommandInputV2 input)
    {
        Executed = true;
        return Task.FromResult(input.Value * 3);
    }
}