/*-------------------------------------------------------------------------
 * 功能描述：ButtonAssemblyManager
 * 作者：xulisong
 * 创建时间： 2019/7/25 13:06:54
 * 版本号：v1.0
 *  -------------------------------------------------------------------------*/

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Reflection;
using System.Text;
using System.Threading.Tasks;
using Autodesk.Revit.UI;

namespace FWindSoft.Revit.Menu
{
    public class ButtonAssemblyManager
    {
        public static MenuConfig GetMenuConfigIsolate(string path)
        {
           return DoaminProxy.NewDomainExecute(ButtonAssemblyManager.GetMenuConfig, path);
        }
        public static MenuConfig GetMenuConfig(string path)
        {
            var usePath = path;
            MenuConfig config = new MenuConfig();
            List<string> files = new List<string>();
            #region 获取相关文件
            List<string> tempFolders = new List<string>();
            var flag = Tools.FileUtil.IsPathDirectory(path);
            if (flag == 1)
            {
                tempFolders.Add(usePath);
            }
            else
            {
                files.Add(usePath);
            }

            for (int i = 0; i < tempFolders.Count; i++)
            {
                var tempPath = tempFolders[i];
                files.AddRange(Directory.GetFiles(tempPath));
                tempFolders.AddRange(Directory.GetDirectories(tempPath));
            } 
            #endregion
            foreach (var file in files)
            {
                if (".dll"!= Path.GetExtension(file)?.ToLower())
                {
                    continue;
                }

                //if (!file.Contains("Tool"))
                //{
                //    continue;
                //}
                try
                {
                    Assembly tempAssembly=Assembly.ReflectionOnlyLoadFrom(file);
                    var refAssemblies = tempAssembly.GetReferencedAssemblies();
                    if (refAssemblies.All(s => s.Name != "FWindSoft.Revit"))
                    {
                        continue;
                    }
                    var assembly=Assembly.LoadFrom(file);
                    var attribue = assembly.GetCustomAttribute<AutoParseButtonAttribute>();
                    if (attribue == null || !attribue.Use)
                    {
                        continue;
                    }
                    var types = assembly.GetTypes();
                    var interfaceName = typeof(IExternalCommand).FullName;
                    foreach (var type in types)
                    {
                        if (type.GetInterface(interfaceName) != null)
                        {
                            if (type.IsAbstract || type.IsGenericTypeDefinition)
                                continue;
                            var buttonAttribute = type.GetCustomAttribute<ButtonAttribute>();
                            if (buttonAttribute == null)
                            {
                                continue;
                            }

                            #region 增加命令信息
                            var tab = buttonAttribute.GetTab();
                            if (config.Tabs.All(t => t.Name != tab.Name))
                            {
                                config.Tabs.Add(tab);
                            }
                            var panel = buttonAttribute.GetPanel();
                            if (config.Panels.All(t => t.Name != panel.Name))
                            {
                                config.Panels.Add(panel);
                            }
                            var button = buttonAttribute.GetButton();
                            button.AssemblyName = assembly.Location;
                            button.ClassName = type.FullName;
                            button.Index = buttonAttribute.Index;
                            config.Buttons.Add(button); 
                            #endregion
                        }
                    }
                }
                catch (Exception ex)
                {

                    //非托管dll可能会报错
                }
            }
            return config;
        }
        /// <summary>
        /// 将assistantConfig数据合并到config中
        /// </summary>
        /// <param name="config"></param>
        /// <param name="assistantConfig"></param>
        /// <returns></returns>
        public static MenuConfig GetMenuConfig(MenuConfig config, MenuConfig assistantConfig)
        {
            var tabs = assistantConfig.Tabs;
            foreach (var tab in tabs)
            {
                if (config.Tabs.Any(t => t.Name == tab.Name))
                {
                    continue;
                }
                config.Tabs.Add(tab);
            }
            var panels = assistantConfig.Panels;
            foreach (var panel in panels)
            {
                if (config.Panels.Any(t => t.Name == panel.Name))
                {
                    continue;
                }
                config.Panels.Add(panel);
            }
            var buttons = assistantConfig.Buttons;
            foreach (var button in buttons)
            {
                if (config.Buttons.Any(t => t.Name == button.Name))
                {
                    continue;
                }
                config.Buttons.Add(button);
            }
            return config;
        }
    }

    internal class DoaminProxy : MarshalByRefObject
    {
        public R Execute<T, R>(Func<T, R> func,T input)
        {
            if (func == null)
            {
                return default(R);
            }
            return func.Invoke(input);
        }
        public void Execute<T>(Action<T> action, T input)
        {
            if (action == null)
            {
                return ;
            }
            action(input);
        }
        internal static R NewDomainExecute<T, R>(Func<T, R> func, T input)
        {
            AppDomain tempAppDomain = AppDomain.CreateDomain(Guid.NewGuid().ToString());
            DoaminProxy proxy = (DoaminProxy)tempAppDomain.CreateInstanceAndUnwrap(Assembly.GetAssembly(typeof(DoaminProxy)).GetName().Name, typeof(DoaminProxy).FullName);
            var result = proxy.Execute<T,R>(func,input);
            AppDomain.Unload(tempAppDomain);
            return result;
        }
    }
}