using Demo.Models;

namespace Demo.Features;

/// <summary>
/// 抽象功能类
/// </summary>
public abstract class Feature
{
    /// <summary>
    /// 执行顺序
    /// </summary>
    public int Order { get; init; }

    public bool Finished { get; protected set; }

    public string Name { get; init; } = String.Empty;
    
    public abstract void Execute(IMetadata metadata);

    public virtual ValueTask ExecuteAsync(IMetadata metadata)
    {
        Execute(metadata);
        return ValueTask.CompletedTask;
    }

    public virtual void OnException(FeatureExceptionContext context)
    {
        throw context.Exception;
    }

    public virtual ValueTask OnExceptionAsync(FeatureExceptionContext context)
    {
        throw context.Exception;
    }
}

public delegate void FeatureFunction(Feature feature, IMetadata metadata);

public delegate ValueTask FeatureFunctionAsync(Feature feature, IMetadata metadata);