using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.IO;
using System.Linq;
using System.Net;
using CefSharp;
using CefSharp.Enums;
using CefSharp.Structs;
using Size = CefSharp.Structs.Size;

namespace XeroBrowser
{
    public class DisplayHandler : IDisplayHandler
    {

        public FrmBrowser Frmref;
        public DisplayHandler(FrmBrowser frm)
        {
            Frmref = frm;
        }
        public static Icon BytesToIcon(byte[] bytes)
        {
            using (MemoryStream ms = new MemoryStream(bytes))
            {
                return new Icon(ms);
            }
        }
        public void OnAddressChanged(IWebBrowser chromiumWebBrowser, AddressChangedEventArgs addressChangedArgs)
        {
        }

        public bool OnAutoResize(IWebBrowser chromiumWebBrowser, IBrowser browser, Size newSize)
        {
            return true;
        }

        public bool OnConsoleMessage(IWebBrowser chromiumWebBrowser, ConsoleMessageEventArgs consoleMessageArgs)
        {
            return true;
        }

        public bool OnCursorChange(IWebBrowser chromiumWebBrowser, IBrowser browser, IntPtr cursor, CursorType type, CursorInfo customCursorInfo)
        {
            return true;
        }

        public void OnFaviconUrlChange(IWebBrowser chromiumWebBrowser, IBrowser browser, IList<string> urls)
        {
            try
            {
                if (urls.Count > 0)
                {
                    WebClient wc = new WebClient();
                    byte[] buffer = wc.DownloadData(urls[0]);
                    Frmref.Icon = BytesToIcon(buffer);
                    Frmref.Update();
                    Frmref.ParentTabs.UpdateThumbnailPreviewIcon(Frmref.ParentTabs.Tabs.Single(t => t.Content == Frmref));
                    Frmref.ParentTabs.RedrawTabs();
                    
                    
                }
            } catch (Exception){
                try
                {
                    WebClient wc = new WebClient();
                    Uri furi = new Uri(chromiumWebBrowser.Address);
                    byte[] buffer = wc.DownloadData(furi.GetLeftPart(UriPartial.Authority) +"/favicon.ico");
                    Frmref.Icon = BytesToIcon(buffer);
                    Frmref.Update();
                    Frmref.ParentTabs.UpdateThumbnailPreviewIcon(Frmref.ParentTabs.Tabs.Single(t => t.Content == Frmref));
                    Frmref.ParentTabs.RedrawTabs();
                }
                catch (Exception){
                    ComponentResourceManager resources = new ComponentResourceManager(typeof(FrmBrowser));
                    Frmref.Icon = ((Icon)(resources.GetObject("$this.Icon")));
                    Frmref.Update();
                    Frmref.ParentTabs.UpdateThumbnailPreviewIcon(Frmref.ParentTabs.Tabs.Single(t => t.Content == Frmref));
                    Frmref.ParentTabs.RedrawTabs();
                }
            }
        }

        public void OnFullscreenModeChange(IWebBrowser chromiumWebBrowser, IBrowser browser, bool fullscreen)
        {
        }

        public void OnLoadingProgressChange(IWebBrowser chromiumWebBrowser, IBrowser browser, double progress)
        {
        }

        public void OnStatusMessage(IWebBrowser chromiumWebBrowser, StatusMessageEventArgs statusMessageArgs)
        {
        }

        public void OnTitleChanged(IWebBrowser chromiumWebBrowser, TitleChangedEventArgs titleChangedArgs)
        {
        }

        public bool OnTooltipChanged(IWebBrowser chromiumWebBrowser, ref string text)
        {
            return true;
        }
    }
}