using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.IO;
using System.Linq;
using System.Reflection;
using Autofac;
using PluginSystem;

namespace WpfApp4
{

        public class PluginLoader
        {
            private readonly string _pluginDirectory;

            public PluginLoader(string pluginDirectory)
            {
                _pluginDirectory = pluginDirectory;
            }

            // 加载插件并注册到Autofac容器
            public void LoadPlugins(ContainerBuilder builder)
            {
                if (!Directory.Exists(_pluginDirectory))
                {
                    Directory.CreateDirectory(_pluginDirectory);
                    return;
                }

                // 加载插件程序集
                var pluginAssemblies = Directory.GetFiles(_pluginDirectory, "*.dll")
                    .Select(Assembly.LoadFrom)
                    .ToList();

                // 注册所有实现IJobPlugin接口的类型
                builder.RegisterAssemblyTypes(pluginAssemblies.ToArray())
                    .Where(t => typeof(IJobPlugin).IsAssignableFrom(t) && !t.IsAbstract)
                    //.As<IJobPlugin>()--错误加上就查不出来插件
                    .InstancePerDependency();

                // 注册插件元数据
                foreach (var assembly in pluginAssemblies)
                {
                    var pluginTypes = assembly.GetTypes()
                        .Where(t => typeof(IJobPlugin).IsAssignableFrom(t) && !t.IsAbstract);

                    foreach (var type in pluginTypes)
                    {
                        // 可以存储插件元数据，如类型名称等
                    }
                }
            }
        }
    
}