using System.Reflection;
using Autodesk.Revit.UI;
using UIFramework;
using UIFrameworkServices;

namespace ShrlAlgoToolkit.Revit.Assists
{
    /// <summary>
    /// 通过命令id设置快捷键
    /// </summary>
	public class KeyboardShortcutService
    {
        /// <summary>
        /// 设置菜单快捷键
        /// </summary>
        /// <param name="id"></param>
        /// <param name="shortcutsRep"></param>
        /// <returns></returns>
		public bool SetRibbonItemShortcut(string id, string shortcutsRep)
        {
            Dictionary<string, UIFrameworkServices.ShortcutItem> dictionary = this.LoadShortcuts();
            if (this.Commands.TryGetValue(id, out UIFrameworkServices.ShortcutItem shortcutItem))
            {
                shortcutItem.ShortcutsRep = shortcutsRep;
                shortcutItem.Shortcuts.Clear();
                //多个快捷键中间以#分割
                foreach (string text in shortcutsRep.Split('#'))
                {
                    shortcutItem.Shortcuts.Add(text);
                }
                dictionary.Add(id, shortcutItem);
                List<UIFrameworkServices.ShortcutItem> list = dictionary.Select((KeyValuePair<string, UIFrameworkServices.ShortcutItem> e) => e.Value).ToList<UIFrameworkServices.ShortcutItem>();

                /* 项目“ShrlAlgo.Toolkit.Revit (net481)”的未合并的更改
                在此之前:
                                this.SaveShortcuts(list);
                                this.ArmCommands();
                在此之后:
                                SaveShortcuts(list);
                                this.ArmCommands();
                */
                KeyboardShortcutService.SaveShortcuts(list);

                /* 项目“ShrlAlgo.Toolkit.Revit (net481)”的未合并的更改
                在此之前:
                                this.ArmCommands();
                                return true;
                在此之后:
                                ArmCommands();
                                return true;
                */
                KeyboardShortcutService.ArmCommands();
                return true;
            }
            return false;
        }
        /// <summary>
        /// 通过外部命令类设置快捷键
        /// </summary>
        /// <param name="id"></param>
        /// <param name="shortcutsRep"></param>
        /// <returns></returns>
		public bool SetRibbonItemShortcut<T>() where T : IExternalCommand
        {
            var attribute = typeof(T).GetCustomAttribute<ShortcutRepAttribute>();
            if (attribute == null)
            {
                return false;
            }
            Dictionary<string, UIFrameworkServices.ShortcutItem> dictionary = this.LoadShortcuts();
            foreach (var item in Commands)
            {
                if (item.Key.EndsWith(nameof(T)))
                {
                    ShortcutItem shortcutItem = item.Value;
                    shortcutItem.ShortcutsRep = attribute.Shortcuts;
                    shortcutItem.Shortcuts.Clear();
                    //多个快捷键中间以#分割
                    foreach (string text in attribute.Shortcuts.Split('#'))
                    {
                        shortcutItem.Shortcuts.Add(text);
                    }
                    dictionary.Add(item.Key, shortcutItem);
                    List<UIFrameworkServices.ShortcutItem> list = dictionary.Select((KeyValuePair<string, UIFrameworkServices.ShortcutItem> e) => e.Value).ToList<UIFrameworkServices.ShortcutItem>();

                    /* 项目“ShrlAlgo.Toolkit.Revit (net481)”的未合并的更改
                    在此之前:
                                        this.SaveShortcuts(list);
                                        this.ArmCommands();
                    在此之后:
                                        SaveShortcuts(list);
                                        this.ArmCommands();
                    */
                    KeyboardShortcutService.SaveShortcuts(list);

                    /* 项目“ShrlAlgo.Toolkit.Revit (net481)”的未合并的更改
                    在此之前:
                                        this.ArmCommands();
                                        return true;
                    在此之后:
                                        ArmCommands();
                                        return true;
                    */
                    KeyboardShortcutService.ArmCommands();
                    return true;
                }
            }
            return false;
        }
        #region 组合使用
        /// 基于Revit封装的RibbonButton设置其快捷键.
        /// </summary>
        /// <param name="btn">RibbonButton.</param>
        /// <param name="key">快捷键字符串.</param>
        /// <returns></returns>
        public bool SetShortCut(Autodesk.Revit.UI.RibbonButton btn, string key)
        {
            if (btn == null)
                return false;

            var item = btn.GetType()
                .InvokeMember(
                    "getRibbonItem",
                    BindingFlags.NonPublic | BindingFlags.Instance | BindingFlags.InvokeMethod,
                    Type.DefaultBinder,
                    btn,
                    null
                );

            return item != null && (item is Autodesk.Windows.RibbonItem ribbonItem) && SetAdShortCut(ribbonItem, key);
        }
        /// <summary>
        /// 基于通用库封装的RibbonCommandItem设置其快捷键.
        /// </summary>
        /// <param name="commandItem">RibbonCommandItem.</param>
        /// <param name="key">快捷键字符串.</param>
        /// <returns></returns>
        private static bool SetAdShortCut(Autodesk.Windows.RibbonItem commandItem, string key)
        {
            if (commandItem == null || string.IsNullOrEmpty(key))
                return false;

            Autodesk.Windows.ComponentManager.Ribbon.FindItem(
                commandItem.Id,
                false,
                out var parentPanel,
                out var parentTab,
                true
            );

            if (parentTab == null || parentPanel == null)
                return false;

            var path = string.Format("{0}>{1}", parentTab.Id, parentPanel.Source.Id);
            var cmdId = ControlHelper.GetCommandId(commandItem);

            if (string.IsNullOrEmpty(cmdId))
            {
                cmdId = Guid.NewGuid().ToString();
                ControlHelper.SetCommandId(commandItem, cmdId);
            }

            var shortcutItem = new ShortcutItem(commandItem.Text, cmdId, key, path)
            {
                ShortcutType = StType.RevitAPI
            };
            UIFrameworkServices.KeyboardShortcutService.applyShortcutChanges(
                new Dictionary<string, ShortcutItem>() { { cmdId, shortcutItem } }
            );
            return true;
        }
        #endregion

        /// <summary>
        /// 移除菜单快捷键
        /// </summary>
        /// <param name="id">命令id</param>
        /// <returns></returns>
		public bool RemoveRibbonItemShortcut(string id)
        {
            Dictionary<string, UIFrameworkServices.ShortcutItem> dictionary = this.LoadShortcuts();
            UIFrameworkServices.ShortcutItem shortcutItem;
            if (dictionary.TryGetValue(id, out shortcutItem))
            {
                dictionary.Remove(id);
                List<UIFrameworkServices.ShortcutItem> list = dictionary.Select((KeyValuePair<string, UIFrameworkServices.ShortcutItem> e) => e.Value).ToList<UIFrameworkServices.ShortcutItem>();

                /* 项目“ShrlAlgo.Toolkit.Revit (net481)”的未合并的更改
                在此之前:
                                this.SaveShortcuts(list);
                                this.ArmCommands();
                在此之后:
                                SaveShortcuts(list);
                                this.ArmCommands();
                */
                KeyboardShortcutService.SaveShortcuts(list);

                /* 项目“ShrlAlgo.Toolkit.Revit (net481)”的未合并的更改
                在此之前:
                                this.ArmCommands();
                                return true;
                在此之后:
                                ArmCommands();
                                return true;
                */
                KeyboardShortcutService.ArmCommands();
                return true;
            }
            return false;
        }
        /// <summary>
        /// 是否具有菜单快捷键
        /// </summary>
        /// <param name="id"></param>
        /// <returns></returns>
		public bool HasRibbonItemShortcut(string id)
        {
            return this.LoadShortcuts().TryGetValue(id, out var _);
        }
        /// <summary>
        /// 获取快捷键的映射（最多五个按键）
        /// </summary>
        /// <param name="id">CommandId</param>
        /// <returns>快捷键</returns>
		public string GetRibbonItemShortcutsRep(string id)
        {
            if (this.LoadShortcuts().TryGetValue(id, out var shortcutItem))
            {
                return shortcutItem.ShortcutsRep;
            }
            return "";
        }
        /// <summary>
        /// 获取全部命令快捷键CommandId-ObservableCollect<string>()
        /// </summary>
        /// <returns></returns>
		public Dictionary<string, IEnumerable<string>> GetCommandShortcuts()
        {
            return (from e in this.Commands
                    select e.Value into e
                    group e by e.CommandId).ToDictionary((IGrouping<string, UIFrameworkServices.ShortcutItem> i) => i.Key, (IGrouping<string, UIFrameworkServices.ShortcutItem> j) => j.SelectMany((UIFrameworkServices.ShortcutItem i) => i.Shortcuts));
        }
        /// <summary>
        /// 获取自定义快捷键被关联到的命令CommandId
        /// </summary>
        /// <param name="shortcut">自定义的快捷键</param>
        /// <returns>CommandId</returns>
        public string GetCommandShortcut(string shortcut)
        {
            return this.Commands.FirstOrDefault((KeyValuePair<string, UIFrameworkServices.ShortcutItem> e) => e.Value.Shortcuts.Contains(shortcut)).Key;
        }
        /// <summary>
        /// 自定义的快捷键是否已经被关联到某个命令上
        /// </summary>
        /// <param name="shortcut">自定义的快捷键</param>
        /// <returns></returns>
		public bool HasCommandShortcut(string shortcut)
        {
            return this.GetCommandShortcuts().Any((KeyValuePair<string, IEnumerable<string>> e) => e.Value.Contains(shortcut));
        }
        /// <summary>
        /// 加载命令
        /// </summary>
		public static void LoadCommands()
        {
            ShortcutsHelper.LoadCommands();
        }
        /// <summary>
        /// 应用快捷键更改
        /// </summary>
		public void ApplyShortcutChanges()
        {
            UIFrameworkServices.KeyboardShortcutService.applyShortcutChanges(this.LoadShortcuts());
        }
        /// <summary>
        /// 应用更改
        /// </summary>
		private static void ArmCommands()
        {
            ShortcutsHelper.ArmCommands();
        }
        /// <summary>
        /// 获取已经加载的ShortcutItems
        /// </summary>
        /// <returns></returns>
		private Dictionary<string, UIFrameworkServices.ShortcutItem> LoadShortcuts()
        {
            return ShortcutsHelper.LoadShortcuts();
        }
        /// <summary>
        /// 保存ShortcutItems
        /// </summary>
        /// <param name="shortcutList"></param>
		private static void SaveShortcuts(ICollection<UIFrameworkServices.ShortcutItem> shortcutList)
        {
            ShortcutsHelper.SaveShortcuts(shortcutList);
        }
        /// <summary>
        /// 所有快捷命令条目字典
        /// </summary>
		private Dictionary<string, UIFrameworkServices.ShortcutItem> Commands
        {
            get
            {
                return ShortcutsHelper.Commands;
            }
        }
        /// <summary>
        /// 获取所有ShortcutItems
        /// </summary>
        /// <returns>ShortcutItems</returns>
		public IEnumerable<UIFrameworkServices.ShortcutItem> GetShortcutItems()
        {
            return from e in this.LoadShortcuts()
                   select new UIFrameworkServices.ShortcutItem(e.Value);
        }
    }
}