using System;
using System.Collections.Generic;
using System.Text;
using Shared;
using System.Xml;
using Shared.SimpleControl.Pad.Music;
using Shared.SimpleControl;
using Shared.SimpleControl.R;

namespace SmartHome.UI.SimpleControl.Pad.Music
{
    class A31Dlna : FrameLayout
    {

        public void show (DLNAServer dlnaServer, List<MusicInfo> list,FrameLayout MusicSourcePage,FrameLayout PalyMusicPage)
        {
            var topFrameLayout = new FrameLayout {
                Height = Application.GetRealHeight (100),
               BackgroundColor = SkinStyle.Current.MainColor,
            };
            AddChidren (topFrameLayout);

            var RadiolistName = new Button {
                TextID = MyInternationalizationString.Musicdlna,
            };
            topFrameLayout.AddChidren (RadiolistName);

            var back = new Button {
                Width = Application.GetRealWidth (82),
                Height = Application.GetRealHeight (89),
                X = Application.GetRealWidth (10),
                Gravity = Gravity.CenterVertical,
                UnSelectedImagePath = "MusicIcon/HomepageBack.png",
            };
            topFrameLayout.AddChidren (back);
            back.MouseDownEventHandler += (sender, e) => {
                RemoveFromParent ();
            };


            FrameLayout TtopFrameLayout = new FrameLayout ();
            TtopFrameLayout.Width = LayoutParams.MatchParent;
            TtopFrameLayout.Height = Application.GetRealHeight (100);
            TtopFrameLayout.Y = topFrameLayout.Bottom;
            TtopFrameLayout.BackgroundColor = 0xff121212;

            AddChidren (TtopFrameLayout);

            var sourcephoto = new Button {
                Width = Application.GetRealWidth (80),
                Height = Application.GetRealHeight (76),
                UnSelectedImagePath = "MusicIcon/dlna.png",
                TextAlignment = TextAlignment.CenterLeft,
                X = Application.GetRealWidth (30),
                Gravity = Gravity.CenterVertical,
            };
            TtopFrameLayout.AddChidren (sourcephoto);

            var dlnamusic = new Button {
                Height = Application.GetRealHeight (100),
                TextID = MyInternationalizationString.Musicmediaplayer,
                TextAlignment = TextAlignment.CenterLeft,
                X = Application.GetRealWidth (130),
                Gravity = Gravity.CenterVertical,
            };
            TtopFrameLayout.AddChidren (dlnamusic);

            Button dropdown = new Button {
                Width = Application.GetRealWidth (65),
                Height = Application.GetRealHeight (49),
                UnSelectedImagePath = "MusicIcon/Homepagexiala.png",
                X = Application.GetRealWidth (480),
                Gravity = Gravity.CenterVertical,
            };
            TtopFrameLayout.AddChidren (dropdown);


            var middle = new VerticalScrolViewLayout ();
            middle.Y = TtopFrameLayout.Bottom;
            middle.Height = Application.GetRealHeight (Application.DesignHeight - 100 - 100-150);
            middle.BackgroundColor = 0xff2F2F2F;
            AddChidren (middle);


            for (int i = 0; i < list.Count; i++) {
                var music = list [i];

                var dlnarowLayout = new RowLayout {
                    Height = Application.GetRealHeight (100),
                };
                middle.AddChidren (dlnarowLayout);

                var radius = new Button {
                    Width = Application.GetRealWidth (36),
                    Height = Application.GetRealHeight (36),
                    TextAlignment = TextAlignment.CenterLeft,
                    X = Application.GetRealWidth (20),
                    UnSelectedImagePath = "MusicIcon/radius.png",
                    Gravity = Gravity.CenterVertical,
                };
                dlnarowLayout.AddChidren (radius);

                var listnext = new Button {
                    Width = Application.GetRealWidth (87),
                    Height = Application.GetRealHeight (100),
                    UnSelectedImagePath = "MusicIcon/Next.png",
                    X = Application.GetRealWidth (480),
                };
                dlnarowLayout.AddChidren (listnext);

                var dlnalists = new Button {
                    TextAlignment = TextAlignment.CenterLeft,
                    X = Application.GetRealWidth (80),
                    Text = music.dlnalistName,
                };

                dlnarowLayout.AddChidren (dlnalists);

                EventHandler<MouseEventArgs> A31dlnaserver = (sender, e) => {

                    MainPage.Loading.Start (Language.StringByID (MyInternationalizationString.load) + "...");
                    System.Threading.Tasks.Task.Run (() => {
                        try {
                            var dlnaString = readDlnaList (dlnaServer, music.ID);
                            if (dlnaString == null) {
                                return;
                            }
                            list.Clear ();
                            dlnaString = dlnaString.Replace ("&amp;", "&").Replace ("&lt;", "<").Replace ("&gt;", ">").Replace ("&quot;", "\"").Replace ("<?xml version=\"1.0\" encoding=\"UTF-8\"?>", "").Replace ("&", "");

                            int StartIndex = dlnaString.IndexOf ("<DIDL-Lite");
                            int endIndex = dlnaString.IndexOf ("</DIDL-Lite>") + "</DIDL-Lite>".Length;
                            if (endIndex <= StartIndex) {
                                return;
                            }
                            var ss = dlnaString.Substring (StartIndex, endIndex - StartIndex);
                            var xml = new XmlDocument ();
                            xml.LoadXml (ss);

                            foreach (XmlNode node in xml.ChildNodes [0].ChildNodes) {
                                MusicInfo musicInfo = new MusicInfo ();
                                musicInfo.ID = node.Attributes ["id"].Value;
                                foreach (XmlNode temnode in node.ChildNodes) {
                                    switch (temnode.Name) {
                                    case "dc:title":
                                        musicInfo.dlnalistName = temnode.InnerText;
                                        break;
                                    }
                                }
                                list.Add (musicInfo);
                            }

                        } catch { } finally {

                            Application.RunOnMainThread (() => {
                                MainPage.Loading.Hide ();
                                A31DlnaList a31DlnaList = new A31DlnaList ();
                                MusicSourcePage.AddChidren (a31DlnaList);
                                a31DlnaList.show (dlnaServer, music.dlnalistName, list,MusicSourcePage,PalyMusicPage);
                            });

                        }

                    });


                };
                dlnalists.MouseUpEventHandler += A31dlnaserver;
                listnext.MouseUpEventHandler += A31dlnaserver;
                radius.MouseUpEventHandler += A31dlnaserver;

            }
        }

        /// <summary>
        /// 读取DLNA的音乐列表
        /// </summary>
        /// <param name="id">列表ID</param>
        /// <returns>读取到的音乐列表信息，读取不到反馈为null</returns>
        string readDlnaList (DLNAServer dlnaServer, string id)
        {
            string tempString = "<?xml version=\"1.0\" encoding=\"utf-8\" standalone=\"yes\"?><s:Envelope s:encodingStyle=\"http://schemas.xmlsoap.org/soap/encoding/\" xmlns:s=\"http://schemas.xmlsoap.org/soap/envelope/\"><s:Body><u:Browse xmlns:u=\"urn:schemas-upnp-org:service:ContentDirectory:1\"><ObjectID>" + id + "</ObjectID><BrowseFlag>BrowseDirectChildren</BrowseFlag><Filter>*</Filter><StartingIndex>0</StartingIndex><RequestedCount>999</RequestedCount><SortCriteria>+dc:title</SortCriteria></u:Browse></s:Body></s:Envelope>";

            Shared.Net.MyWebClient webClient = new Shared.Net.MyWebClient ();
            webClient.Proxy = null;
            webClient.Headers.Add ("Content-type", "text/xml;charset=\"utf-8\"");
            webClient.Headers.Add ("Soapaction", "\"urn:schemas-upnp-org:service:ContentDirectory:1#Browse\"");
            try {
                byte [] recevieBytes = webClient.UploadData (new Uri ("http://" + dlnaServer.URL + dlnaServer.ControlURL), "POST", System.Text.Encoding.UTF8.GetBytes (tempString));
                return System.Text.Encoding.UTF8.GetString (recevieBytes, 0, recevieBytes.Length);
            } catch (Exception e) {
                return null;
            }
        }
    }
}