using JianGongYun.TRTC.Components;
using JianGongYun.TRTC.Utils;
using ManageLiteAV;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;

namespace ClientDemo
{
    /// <summary>
    /// MainWindow.xaml 的交互逻辑
    /// </summary>
    public partial class MainWindow : Window
    {
        const uint SDKAppID = 1400463444;
        const string SDKAppKEY = "6ee2586282eb8ab5bff3f917b44500c4ffd9bbd3d820258b1fa8cdd470cfd1ee";
        /// <summary>
        /// TRTC实例
        /// </summary>
        public static ITRTCCloud lTRTCCloud;
        /// <summary>
        /// 设备管理器
        /// </summary>
        public static ITXDeviceManager lTXDeviceManager;
        public static TRTCCloudCallback TRTCCloudCallback = new TRTCCloudCallback();
        public MainWindow()
        {
            InitializeComponent();
            lTRTCCloud = ITRTCCloud.getTRTCShareInstance();//创建TRTC实例
            Console.WriteLine(lTRTCCloud.getSDKVersion());
            lTRTCCloud.addCallback(TRTCCloudCallback);//注册回调

            var roomPars = new TRTCParams
            {
                sdkAppId = SDKAppID,
                userId = "666",
                userSig = GenTestUserSig("666"),
                roomId = 0,//使用strRoomId
                strRoomId = "53245345",
                role = TRTCRoleType.TRTCRoleAudience
            };
            lTRTCCloud.enterRoom(ref roomPars, TRTCAppScene.TRTCAppSceneLIVE);//创建房间

            StartVideo();
        }
        //53245345房间id/教师id  666自己id
        public void StartVideo()
        {
            lTRTCCloud.startRemoteView("53245345", TRTCVideoStreamType.TRTCVideoStreamTypeBig, IntPtr.Zero);
            AddCustomVideoView(main, "53245345", TRTCVideoStreamType.TRTCVideoStreamTypeBig, false);
            lTRTCCloud.startRemoteView("53245345", TRTCVideoStreamType.TRTCVideoStreamTypeSub, IntPtr.Zero);
            AddCustomVideoView(sub, "53245345", TRTCVideoStreamType.TRTCVideoStreamTypeSub, false);
        }
        public void StopVideo()
        {
            lTRTCCloud.stopRemoteView("53245345", TRTCVideoStreamType.TRTCVideoStreamTypeBig);
            RemoveCustomVideoView(main, "53245345", TRTCVideoStreamType.TRTCVideoStreamTypeBig, false);
            lTRTCCloud.stopRemoteView("53245345", TRTCVideoStreamType.TRTCVideoStreamTypeSub);
            RemoveCustomVideoView(sub, "53245345", TRTCVideoStreamType.TRTCVideoStreamTypeSub, false);
        }
        private static void RemoveCustomVideoView(Panel parent, string userId, TRTCVideoStreamType streamType, bool local = false)
        {
            TXLiteAVVideoView videoView = null;
            string key = string.Format("{0}_{1}", userId, streamType);
            if (VideoViews.TryGetValue(key, out videoView))
            {
                videoView.RemoveEngine(lTRTCCloud);
                parent.Dispatcher.Invoke(new Action(() =>
                {
                    parent.Children.Remove(videoView);
                }));
                VideoViews.Remove(key);
            }
        }


        /// <summary>
        /// 视频画面
        /// </summary>
        public static Dictionary<string, TXLiteAVVideoView> VideoViews = new Dictionary<string, TXLiteAVVideoView>();
        /// <summary>
        /// 添加自定义渲染 View 并绑定渲染回调
        /// </summary>
        private static TXLiteAVVideoView AddCustomVideoView(Panel parent, string userId, TRTCVideoStreamType streamType, bool local = false)
        {
            TXLiteAVVideoView videoView = new TXLiteAVVideoView();
            videoView.RegEngine(userId, streamType, lTRTCCloud, local);
            videoView.SetRenderMode(streamType == TRTCVideoStreamType.TRTCVideoStreamTypeBig ? TRTCVideoFillMode.TRTCVideoFillMode_Fill : TRTCVideoFillMode.TRTCVideoFillMode_Fit);
            videoView.SetBinding(TXLiteAVVideoView.WidthProperty, new Binding("ActualWidth") { Source = parent });
            videoView.SetBinding(TXLiteAVVideoView.HeightProperty, new Binding("ActualHeight") { Source = parent });
            parent.Dispatcher.Invoke(new Action(() =>
            {
                parent.Children.Add(videoView);
            }));
            string key = string.Format("{0}_{1}", userId, streamType);
            VideoViews.Add(key, videoView);
            return videoView;
        }

        protected override void OnClosing(CancelEventArgs e)
        {
            StopVideo();
            lTRTCCloud.exitRoom();
            lTRTCCloud.removeCallback(TRTCCloudCallback);//注册回调
            ITRTCCloud.destroyTRTCShareInstance();//销毁TRTC实例
            lTRTCCloud.Dispose();
            lTRTCCloud = null;
            base.OnClosing(e);
        }
        public static string GenTestUserSig(string userId)
        {
            if (SDKAppID == 0 || string.IsNullOrEmpty(SDKAppKEY)) return null;
            TLSSigAPIv2 api = new TLSSigAPIv2((int)SDKAppID, SDKAppKEY);
            // 统一转换为UTF8，SDK内部是用UTF8编码。
            return api.GenSig(Util.UTF16To8(userId));
        }
    }
}