using Microsoft.Web.WebView2.Core;
using System.ComponentModel.DataAnnotations;
using System.IO;
using Yw.Model.Map;
using Yw.WebBrower;

namespace PBS.WinFrmUI.Hydro
{
    public partial class MapSetPlaceMarkerContainer : UserControl, IMapSetPlaceMarkerContainer
    {
        public MapSetPlaceMarkerContainer()
        {
            InitializeComponent();
        }

        public event Action LoadCompletedEvent;
        public event Action LoadFailedEvent;
        public event Action<HandingError> HandingErrorEvent;
        public event Action<Marker> SetMarkerEvent;
        public event Action<Yw.Model.Map.Point, Yw.Model.Map.Point> SetMapBoundsEvent;
         

        public MapSetPlaceMarkerCallBackObj CallBackObj
        {
            get
            {
                if (_callBackObj == null)
                {
                    _callBackObj = new MapSetPlaceMarkerCallBackObj();
                }
                return _callBackObj;
            }
        }
        private MapSetPlaceMarkerCallBackObj _callBackObj;

        public bool IsInitialized
        {
            get
            {
                return _isInitialized;
            }
        }
        private bool _isInitialized;

        /// <summary>
        /// 初始化容器
        /// </summary>
        public async Task InitialContainer()
        {
            var callBackObj = this.CallBackObj;
            callBackObj.LoadCompletedEvent += CallBackObj_LoadCompletedEvent;
            callBackObj.LoadFailedEvent += CallBackObj_LoadFailedEvent;
            callBackObj.HandingErrorEvent += CallBackObj_HandingErrorEvent;
            callBackObj.SetMarkerEvent += CallBackObj_SetMarkerEvent;
            callBackObj.SetMapBoundsEvent += CallBackObj_SetMapBoundsEvent;
            await this.webViewControl1.InitialWebBrower(MapUrlHelper.SetPlaceMarkerUrl, callBackObj);
        }

   
        //加载完成
        private void CallBackObj_LoadCompletedEvent()
        {
            _isInitialized = true;
            this.LoadCompletedEvent?.Invoke();
        }

        //加载失败
        private void CallBackObj_LoadFailedEvent()
        {
            this.LoadFailedEvent?.Invoke();
        }

        //处理错误
        private void CallBackObj_HandingErrorEvent(HandingError obj)
        {
            this.HandingErrorEvent?.Invoke(obj);
        }

        //设置标记
        private void CallBackObj_SetMarkerEvent(Yw.Model.Map.Marker obj)
        {
            this.SetMarkerEvent?.Invoke(obj);
        }

        //设置地图边界
        private void CallBackObj_SetMapBoundsEvent(Yw.Model.Map.Point southWest, Yw.Model.Map.Point northEast)
        {
            this.SetMapBoundsEvent?.Invoke(southWest, northEast);
        }

        /// <summary>
        /// 加载标记
        /// </summary>
        public async Task<bool> LoadMarker(Marker marker)
        {
            if (!this.IsInitialized)
            {
                return false;
            }
            return await this.webViewControl1.EvaluateScriptAsync<bool>("loadMarker", marker);
        }

        /// <summary>
        /// 加载地图边界
        /// </summary> 
        public async Task<bool> LoadMapBounds(Yw.Model.Map.Point southWest, Yw.Model.Map.Point northEast)
        {
            if (!this.IsInitialized)
            {
                return false;
            }
            return await this.webViewControl1.EvaluateScriptAsync<bool>("loadMapBounds", southWest, northEast);
        }

        /// <summary>
        /// 查询地址
        /// </summary>
        public async Task SearchAddress()
        {
            if (!this.IsInitialized)
            {
                return;
            }
            await this.webViewControl1.EvaluateScriptAsync("searchAddress()");
        }


        public async Task<(double Width, double Height, double Zoom)?> CaptureImage
            (string tempFilePath,
            Yw.Model.Map.Point southWest,
            Yw.Model.Map.Point northEast)
        {

            var webView = this.webViewControl1.Controls[0] as Microsoft.Web.WebView2.WinForms.WebView2;
            if (webView == null)
            {
                TipFormHelper.ShowError(" webView is null");
                return null;
            }

            return await this.Invoke(async () =>
             {

                 await webView.EnsureCoreWebView2Async(); 

                 var coreWebView = webView.CoreWebView2;
                 int pageWidth = webView.ClientSize.Width;
                 int pageHeight = webView.ClientSize.Height;

                 webView.Width = pageWidth;
                 webView.Height = pageHeight;
                 var pWidth = pageWidth - 10;
                 var pHeight = pageHeight - 10;

                 var directory = Path.GetDirectoryName(tempFilePath);
                 if (!Directory.Exists(directory))
                     Directory.CreateDirectory(directory);

                 using (var fileStream = new FileStream(tempFilePath + "_t.png", FileMode.Create))
                 {
                     await coreWebView.CapturePreviewAsync(CoreWebView2CapturePreviewImageFormat.Png, fileStream);
                     var bitMap = new Bitmap(fileStream);
                     bitMap.Clone(new Rectangle(10, 10, pWidth, pHeight), System.Drawing.Imaging.PixelFormat.DontCare).Save(tempFilePath);
                     fileStream.Close();

                     var screen = Screen.PrimaryScreen;
                     var screenBound = screen.Bounds;
                     var bo = (double)screenBound.Height / screenBound.Width;
                     var dpi = Math.Round(bo, 3);//0.56  

                 }





                 var size = AmapBoundsHelper.CalcSize(southWest, northEast);

                 double distanceHeight = size.Height;
                 double distanceWidth = size.Width;
                 var BackgroundWidth = distanceWidth;
                 var BackgroundHeight = distanceHeight;
                 var w = pageWidth / BackgroundWidth;
                 var h = pageHeight / BackgroundHeight;
                 var Zoom = w > h ? w : h;

                 File.Delete(tempFilePath + "_t.png");

                 return (BackgroundWidth, BackgroundHeight, Zoom);


             });



        }





        #region 边框

        /// <summary>
        /// 显示边框
        /// </summary>
        [Display(Name = "显示边框")]
        [DisplayName("显示边框")]
        [Browsable(true)]
        public bool ShowBorder
        {
            get { return this.webViewControl1.ShowBorder; }
            set { this.webViewControl1.ShowBorder = value; }
        }

        /// <summary>
        /// 边框颜色
        /// </summary>
        [Display(Name = "边框颜色")]
        [DisplayName("边框颜色")]
        [Browsable(true)]
        public Color BorderColor
        {
            get { return this.webViewControl1.BorderColor; }
            set { this.webViewControl1.BorderColor = value; }
        }

        /// <summary>
        /// 边框宽度
        /// </summary>
        [Display(Name = "边框宽度")]
        [DisplayName("边框宽度")]
        [Browsable(true)]
        public int BorderWidth
        {
            get { return this.webViewControl1.BorderWidth; }
            set { this.webViewControl1.BorderWidth = value; }
        }

        #endregion



    }
}