using ESRI.ArcGIS.ADF.BaseClasses;
using ESRI.ArcGIS.Carto;
using ESRI.ArcGIS.Controls;
using ESRI.ArcGIS.Display;
using ESRI.ArcGIS.esriSystem;
using ESRI.ArcGIS.Geodatabase;
using ESRI.ArcGIS.Geometry;
using KGIS.Framework.Maps;
using KGIS.Framework.Utils;
using Kingo.Plugin.MapView.Views;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Kingo.Plugin.MapView.Commands
{
    public class AttributeLookCommand : BaseTool
    {
        private IHookHelper m_hookHelper;
        IPoint fromPoint = null;
        IPoint toPoint = null;
        FrmFeatureAttributes frmAttr = null;
        private INewEnvelopeFeedback m_NewPolygonFeedback;
        public override void OnClick()
        {
            try
            {
                if (frmAttr == null)
                {
                    frmAttr = new FrmFeatureAttributes(m_hookHelper)
                    {
                        Title = "识别",
                        ResizeMode = System.Windows.ResizeMode.NoResize,
                        WindowStartupLocation = System.Windows.WindowStartupLocation.CenterScreen,
                        Width = 300,
                        Height = 700
                    };
                    frmAttr.Closed += FrmAttr_CloseViewHandler;
                    frmAttr.ShowInMainWindow(false);
                }
                this.m_NewPolygonFeedback = new NewEnvelopeFeedback() { Display = this.m_hookHelper.ActiveView.ScreenDisplay };
                base.OnClick();
            }
            catch (Exception ex)
            {
                LogAPI.Debug("点击 查看要素属性 时异常，异常信息如下：");
                LogAPI.Debug(ex);
                LogAPI.Debug("点击 查看要素属性 时异常信息结束");
            }
        }

        private void FrmAttr_CloseViewHandler(object sender, EventArgs e)
        {
            frmAttr.CloseViewHandler -= FrmAttr_CloseViewHandler;
            frmAttr = null;
        }

        public override void OnCreate(object hook)
        {
            try
            {
                if (m_hookHelper == null)
                {
                    m_hookHelper = new HookHelper();
                    m_hookHelper.Hook = hook;
                }
            }
            catch (Exception ex)
            {
                m_hookHelper = new HookHelper();
                m_hookHelper.Hook = null;
                LogAPI.Debug("初始化 查看要素属性 命令时异常，异常信息如下：");
                LogAPI.Debug(ex);
                LogAPI.Debug("初始化 查看要素属性 命令时异常信息结束");
            }
        }
        public override void OnDblClick()
        {
            base.OnDblClick();
        }
        public override void OnKeyDown(int keyCode, int shift)
        {
            base.OnKeyDown(keyCode, shift);
        }
        public override void OnKeyUp(int keyCode, int shift)
        {
            base.OnKeyUp(keyCode, shift);
        }
        public override void OnMouseDown(int button, int shift, int x, int y)
        {
            //鼠标左键按下时再去绘制矩形，区分中键按下拖动地图功能，对应bug10406
            if (button == 1)
            {
                fromPoint = m_hookHelper.ActiveView.ScreenDisplay.DisplayTransformation.ToMapPoint(x, y);
                if (m_NewPolygonFeedback != null)
                {
                    m_NewPolygonFeedback.Start(fromPoint);
                }
            }
            base.OnMouseDown(button, shift, x, y);
        }
        public override void OnMouseMove(int button, int shift, int x, int y)
        {
            if (button == 1)
            {
                toPoint = m_hookHelper.ActiveView.ScreenDisplay.DisplayTransformation.ToMapPoint(x, y);
                if (m_NewPolygonFeedback != null)
                {
                    m_NewPolygonFeedback.MoveTo(toPoint);
                }
            }
            base.OnMouseMove(button, shift, x, y);
        }
        public override void OnMouseUp(int button, int shift, int x, int y)
        {
            try
            {
                if (button == 1)
                {
                    toPoint = m_hookHelper.ActiveView.ScreenDisplay.DisplayTransformation.ToMapPoint(x, y);
                    List<IFeatureLayer> layers = MapsManager.Instance.MapService.GetAllVisibleLayerInMap<IFeatureLayer>();
                    IGeometry pGeometry = m_NewPolygonFeedback.Stop();
                    if (pGeometry == null || pGeometry.IsEmpty)
                    {
                        if (toPoint == null || toPoint.IsEmpty)
                        {
                            return;
                        }
                        pGeometry = toPoint;
                    }
                    Dictionary<string, List<IFeature>> features = Identify(pGeometry, layers);
                    if (frmAttr == null)
                    {
                        frmAttr = new FrmFeatureAttributes(m_hookHelper);
                        frmAttr.Title = "识别";
                        frmAttr.Width = 300;
                        frmAttr.Height = 700;
                        frmAttr.Closed += FrmAttr_CloseViewHandler;
                        frmAttr.ShowInMainWindow(false);
                    }
                    frmAttr.Identify(features);
                }
            }
            catch (Exception ex)
            {
                //Common.Utility.LogAPI.Debug(ex);

                LogAPI.Debug("查看要素属性期间 鼠标抬起 时异常，异常信息如下：");
                LogAPI.Debug(ex);
                LogAPI.Debug("查看要素属性期间 鼠标抬起 时异常信息结束");
            }
            base.OnMouseUp(button, shift, x, y);
        }
        //[LogWrite(Description = "")]
        public override bool Deactivate()
        {
            if (frmAttr != null)
            {
                frmAttr.ClearData();//.RegistSelectionChangedEvent();
            }
            return base.Deactivate();
        }
        public override void Refresh(int hdc)
        {
            base.Refresh(hdc);
        }
        public override string Tooltip
        {
            get
            {
                return base.Tooltip;
            }
        }

        /// <summary>
        /// 根据线捕捉要素
        /// </summary>
        /// <param name="pPoint"></param>
        /// <param name="pLayers"></param>
        /// <returns></returns>
        //[LogWrite(Description = "")]
        public Dictionary<string, List<IFeature>> Identify(IGeometry pGeo, List<IFeatureLayer> pLayers, int buffer = 5)
        {
            Dictionary<string, List<IFeature>> result = new Dictionary<string, List<IFeature>>();
            IArray geoArray = new ArrayClass();
            try
            {
                if (pGeo != null && !pGeo.IsEmpty && pLayers != null)
                {
                    foreach (IFeatureLayer item in pLayers)
                    {
                        //if (!item.Selectable) continue;
                        IIdentify identify = item as IIdentify;
                        if (identify == null)
                            continue;
                        //ITopologicalOperator pTopo = pGeo as ITopologicalOperator;
                        //IGeometry pGeometry = pTopo.Buffer(buffer).Envelope as IGeometry;
                        ESRI.ArcGIS.esriSystem.IArray array = identify.Identify(pGeo);
                        if (array == null)
                            continue;
                        if (array.Count == 0)
                            continue;
                        if (!result.Keys.Contains(item.Name))
                        {
                            result.Add(item.Name, new List<IFeature>());
                        }
                        for (int i = 0; i < array.Count; i++)
                        {
                            IRowIdentifyObject row = (IRowIdentifyObject)array.get_Element(i);
                            if (row == null)
                                continue;
                            IFeature f = row.Row as IFeature;
                            result[item.Name].Add(f);
                            if (!f.ShapeCopy.IsEmpty)
                            {
                                geoArray.Add(f.ShapeCopy);
                            }
                        }
                    }
                    if (geoArray.Count > 0)
                    {
                        FlashShapeArray(m_hookHelper, geoArray);
                    }
                }
            }
            catch (Exception ex)
            {
                LogAPI.Debug("查看要素属性期间 根据线捕捉要素 时异常，异常信息如下：");
                LogAPI.Debug(ex);
                LogAPI.Debug("查看要素属性期间 根据线捕捉要素 时异常信息结束");

                throw ex;
            }
            return result;
        }

        /// <summary>
        /// 通过IHookActions闪烁要素集合 
        /// </summary>
        /// <param name="m_hookHelper"></param>
        /// <param name="geoArray"></param>
        public static void FlashShapeArray(IHookHelper m_hookHelper, IArray geoArray)
        {
            IHookActions hookActions = (IHookActions)m_hookHelper;
            System.Windows.Forms.Application.DoEvents();
            hookActions.DoActionOnMultiple(geoArray, esriHookActions.esriHookActionsFlash);
        }
    }
}