using ESRI.ArcGIS.Carto;
using ESRI.ArcGIS.Controls;
using ESRI.ArcGIS.esriSystem;
using ESRI.ArcGIS.Geometry;
using KGIS.Framework.Maps;
using KGIS.Framework.Platform;
using KGIS.Framework.Utils;
using Kingo.Plugin.MapView.Interface;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Kingo.Plugin.MapView.Commands
{
    public class BaseSnapCommand2 : ICheckBarItem
    {
        private IHookHelper m_hookHelper;
        private EngineEditorClass m_editor = new EngineEditorClass();
        private ISnappingEnvironment snapEnv = null;
        private bool IsChecked = false;
        List<IFeatureLayer> layers = new List<IFeatureLayer>();
        public virtual esriSnappingType SnappingType { get { return esriSnappingType.esriSnappingTypeNone; } }

        public bool Checked
        {
            get
            {
                IsChecked = (snapEnv.SnappingType & SnappingType) == SnappingType;
                return IsChecked;
            }
        }

        public virtual void OnCreate(object hook)
        {
            try
            {
                if (hook == null)
                {
                    return;
                }
                if (m_hookHelper == null)
                {
                    m_hookHelper = new HookHelper();
                    m_hookHelper.Hook = hook;
                }

                if (m_hookHelper.ActiveView == null)
                {
                    m_hookHelper = null;
                    return;
                }
                layers = null;
                IHookHelper2 hookHelper2 = m_hookHelper as IHookHelper2;
                if (hookHelper2 != null)
                {
                    IExtensionManager extensionManager = hookHelper2.ExtensionManager;

                    if (extensionManager != null)
                    {
                        IExtension extension = extensionManager.FindExtension(new UIDClass
                        {
                            Value = "{E07B4C52-C894-4558-B8D4-D4050018D1DA}"//捕捉
                        });
                        if (extension != null)
                        {
                            this.snapEnv = (extension as ISnappingEnvironment);
                            this.snapEnv.SnappingType = esriSnappingType.esriSnappingTypeEndpoint ^ esriSnappingType.esriSnappingTypeEdge ^ esriSnappingType.esriSnappingTypeVertex;
                        }
                    }
                }
            }
            catch (Exception ex)
            {
                LogAPI.Debug("加载 BaseSnap 类时失败，异常原因: " + ex + " ; ");
                m_hookHelper = null;
            }
        }

        private IMapService _MapService;

        public virtual void OnClick()
        {
            try
            {
                this.IsChecked = !this.IsChecked;
                if (this.IsChecked)
                {
                    if (snapEnv != null)
                    {
                        if ((snapEnv.SnappingType & SnappingType) != SnappingType)
                        {
                            snapEnv.SnappingType = snapEnv.SnappingType | SnappingType;
                        }
                    }
                }
                else
                {
                    if (snapEnv != null && (snapEnv.SnappingType & SnappingType) == SnappingType)
                    {
                        if ((snapEnv.SnappingType ^ SnappingType) == esriSnappingType.esriSnappingTypeNone)
                        {
                            snapEnv.SnappingType = esriSnappingType.esriSnappingTypeNone;
                        }
                        else
                        {
                            if (snapEnv != null && (snapEnv.SnappingType & SnappingType) == SnappingType)
                            {
                                snapEnv.SnappingType = snapEnv.SnappingType ^ SnappingType;
                            }
                        }
                    }
                }
            }
            catch (Exception ex)
            {
                LogAPI.Debug(ex);
            }
            finally
            {

            }
        }


        public int Bitmap
        {
            get { return 0; }
        }

        public string Caption
        {
            get { return ""; }
        }

        public string Category
        {
            get { return ""; }
        }

        public bool Enabled
        {
            get { return m_editor.EditState == esriEngineEditState.esriEngineStateEditing; }
        }

        public int HelpContextID
        {
            get { return 0; }
        }

        public string HelpFile
        {
            get { return ""; }
        }

        public string Message
        {
            get { return ""; }
        }

        public string Name
        {
            get { return ""; }
        }

        public virtual string Tooltip
        {
            get { return ""; }
        }
        #region 获取所有可见图层
        ///// <summary>
        ///// 获取当前地图中可见的矢量图层
        ///// </summary>
        ///// <param name="pMap"></param>
        ///// <returns></returns>
        //private List<IFeatureLayer> GetVisibleLayer(IMap pMap)
        //{
        //    List<IFeatureLayer> result = new List<IFeatureLayer>();
        //    if (pMap == null)
        //        return result;
        //    try
        //    {
        //        for (int i = 0; i < pMap.LayerCount; i++)
        //        {
        //            ILayer layer = pMap.get_Layer(i);
        //            if (layer is IFeatureLayer)
        //            {
        //                if ((layer as IFeatureLayer).Visible)
        //                {
        //                    result.Add(layer as IFeatureLayer);
        //                }
        //            }
        //            else if (layer is ICompositeLayer)
        //            {
        //                if ((layer as IGroupLayer).Visible)
        //                {
        //                    result.AddRange(GetVisibleLayerByGroupLayer(layer as ICompositeLayer));
        //                }
        //            }
        //        }
        //    }
        //    catch (Exception ex)
        //    {
        //        LogAPI.Debug("获取当前地图中可见的矢量图层时失败，异常原因:" + ex + " ; ");
        //    }
        //    return result;
        //}

        //private List<IFeatureLayer> GetVisibleLayerByGroupLayer(ICompositeLayer pGroupLayer)
        //{
        //    List<IFeatureLayer> result = new List<IFeatureLayer>();
        //    if (pGroupLayer != null && pGroupLayer.Count > 0)
        //    {
        //        for (int i = 0; i < pGroupLayer.Count; i++)
        //        {
        //            ILayer layer = pGroupLayer.get_Layer(i);
        //            if (layer is IAnnotationLayer)
        //            {

        //            }
        //            else if (layer is IGroupLayer)
        //            {
        //                if ((layer as IGroupLayer).Visible)
        //                {
        //                    result.AddRange(GetVisibleLayerByGroupLayer(layer as ICompositeLayer));
        //                }
        //            }
        //            else
        //            {
        //                if (layer is IFeatureLayer)
        //                {
        //                    if ((layer as IFeatureLayer).Visible)
        //                    {
        //                        result.Add((IFeatureLayer)layer);
        //                    }
        //                }
        //            }
        //        }
        //    }
        //    return result;
        //}
        #endregion

    }
}