using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Linq;
using System.Threading;
using System.Windows;
using System.Windows.Input;
using System.Windows.Media;
using Bricscad.Windows;
using CAD.Extend.Model;
using Prism.Commands;
using Prism.Dialogs;
using SWS.CAD.Base;
using Teigha.Colors;
using Teigha.DatabaseServices;
using Brush = System.Windows.Media.Brush;
using Color = System.Windows.Media.Color;

namespace CAD.Extend.ViewModels
{
    public class DialogConvertBaseMapViewModel : DialogBase, IDialogAware
    {
        #region binding
        private ObservableCollection<KeyValueModel> _listLayerName = new ObservableCollection<KeyValueModel>();
        /// <summary>
        /// 底图名列表
        /// </summary>
        public ObservableCollection<KeyValueModel> listLayerName
        {
            get { return _listLayerName; }
            set { _listLayerName = value; RaisePropertyChanged(nameof(listLayerName)); }
        }
        private KeyValueModel _SelectedLayerName;
        /// <summary>
        /// 选中的底图名
        /// </summary>
        public KeyValueModel SelectedLayerName
        {
            get { return _SelectedLayerName; }
            set { _SelectedLayerName = value; RaisePropertyChanged(nameof(SelectedLayerName)); }
        }
        private bool _IsToBlock;
        /// <summary>
        /// 是否转为图块
        /// </summary>
        public bool IsToBlock
        {
            get { return _IsToBlock; }
            set { _IsToBlock = value; RaisePropertyChanged(nameof(IsToBlock)); }
        }
        #endregion

        private string _BlockName = "EI-Elec专用底图";
        /// <summary>
        /// 块名
        /// </summary>
        public string BlockName
        {
            get { return _BlockName; }
            set { _BlockName = value; RaisePropertyChanged(nameof(BlockName)); }
        }
        private Brush _BlockColor;
        /// <summary>
        /// 图层颜色
        /// </summary>
        public Brush BlockColor
        {
            get { return _BlockColor; }
            set { _BlockColor = value; RaisePropertyChanged(nameof(BlockColor)); }
        }

        /// <summary>
        /// 随机块名
        /// </summary>
        public ICommand Command_BlockName { get; set; }
        /// <summary>
        /// 颜色
        /// </summary>
        public ICommand Command_Color { get; set; }
        /// <summary>
        /// 图层颜色 默认灰色
        /// </summary>
        Teigha.Colors.Color layerColor = Teigha.Colors.Color.FromColorIndex(ColorMethod.ByAci, 8);
        List<ObjectId> listObjectId = new List<ObjectId>();
        string layerName = "EI-Elec专用底图图层";
        public DialogConvertBaseMapViewModel()
        {
            title = "背景底图设置";
            Command_BlockName = new DelegateCommand(onBlockName);
            Command_Color = new DelegateCommand(onColor);
            System.Drawing.Color winColor = layerColor.ColorValue;
            var c = Color.FromArgb(winColor.A, winColor.R, winColor.G, winColor.B);
            BlockColor = new SolidColorBrush(c);
        }
        /// <summary>
        /// 颜色选择
        /// </summary>
        public void onColor()
        {
            var list=General.GetTopLevelDictionaryNames();

            ColorDialog dlg = new ColorDialog();

            if (dlg.ShowDialog() == System.Windows.Forms.DialogResult.OK)
            {
                layerColor = dlg.Color;
                System.Drawing.Color winColor = dlg.Color.ColorValue;
                var b = Color.FromArgb(winColor.A, winColor.R, winColor.G, winColor.B);
                BlockColor = new SolidColorBrush(b);
            }
        }
        /// <summary>
        /// 随机块名
        /// </summary>
        public void onBlockName()
        {
            var a = GetRndABC();
            Thread.Sleep(10);
            var b = GetRndABC();
            Thread.Sleep(10);
            var c = GetRndABC();
            BlockName = "EI-Elec图块" + a + b + c;
        }
        public string GetRndABC()
        {
            // a-z  ASCII值  97-122 
            // A-Z  ASCII值  65-90
            int i = new Random().Next(65, 90);
            char c = (char)i;
            return c.ToString();
        }

        #region Dialog

        public DialogCloseListener RequestClose { get; }

        public bool CanCloseDialog()
        {
            return true;
        }

        public void OnDialogClosed()
        {

        }

        #endregion

        public void OnDialogOpened(IDialogParameters parameters)
        {
            listObjectId = parameters.GetValue<List<ObjectId>>(GlobalObject.dialogPar.info.ToString());
            var list = General.GetAllLayerNames();
            foreach (var layerName in list)
            {
                if (layerName.Equals(layerName))
                { listLayerName.Insert(0, new KeyValueModel() { Key = layerName, Value = layerName }); }
                else
                {
                    listLayerName.Add(new KeyValueModel() { Key = layerName, Value = layerName });
                }
            }
            if (!listLayerName.Where(a => a.Key == layerName).Any())
            { listLayerName.Insert(0, new KeyValueModel() { Key = layerName, Value = layerName }); }
            SelectedLayerName = listLayerName[0];
        }
        public override void ExecuteOKCommandAsync(object para)
        {
            if (IsToBlock)
            {
                if (string.IsNullOrEmpty(BlockName))
                {
                    MessageBox.Show("块名不能为空！"); 
                    return;
                }
                if (General.CheckHasBlockName(BlockName))
                {
                    MessageBox.Show("块名已存在，请更换块名！");
                    return;
                }
                General.SetEntityToLayer(listObjectId, SelectedLayerName.Value, layerColor, BlockName);
            }
            else
            {
                General.SetEntityToLayer(listObjectId, SelectedLayerName.Value, layerColor);
            }
            MessageBox.Show("底图设置成功！");
            //Prism.Dialogs.DialogParameters resPara = new Prism.Dialogs.DialogParameters();
            //RequestClose.Invoke(resPara, ButtonResult.Yes);
        }
        public override void ExecuteCloseCommand(object parameter)
        {
            if (parameter as string == "ClickNo")
            {
                RequestClose.Invoke(ButtonResult.No);
            }
            else
            {
                RequestClose.Invoke(ButtonResult.Cancel);
            }
            this.Dispose();
        }

    }


}