using System;

namespace Chernobyl.Plugin
{
    /// <summary>
    /// Provides an interface through which plug-ins can be added to the Chernobyl framework. Plugins
    /// should derive from <see cref="IDisposable"/> if they wish to be disposed of on application
    /// shutdown or unloading of the plugin.
    /// </summary>
    public interface IPlugin
    {}

    /// <summary>
    /// Wraps an instance to make it a plugin. This is useful when you have a type that you want to
    /// treat as a plugin, such as when using dependency injection, but don't want to create an
    /// additional plugin type for it.
    /// </summary>
    /// <typeparam name="T">The instance being </typeparam>
    public class Plugin<T> : IPlugin
    {
        /// <param name="instance">The instance to treat as a plugin.</param>
        public Plugin(T instance)
        {
            Instance = instance;
        }

        /// <summary>
        /// The instance to treat as a plugin.
        /// </summary>
        public T Instance { get; }
    }
}