using System;
using System.Collections.Generic;
using System.Linq;
using Vinno.FIS.TRTCClient.Common.Enum;
using Vinno.vCloud.FIS.CrossPlatform.Common;
using Vinno.vCloud.FIS.CrossPlatform.Common.Enum;
using Vinno.vCloud.FIS.CrossPlatform.Common.LiveVideo;
using Vinno.vCloud.FIS.CrossPlatform.Common.LiveVideo.Interface;

namespace Vinno.vCloud.FIS.CrossPlatform.Android.LiveVideo.RTMP
{
    public class RtmpSinglePusherV2 : PusherBase, ILiveVideoPusherV2
    {
        private DsRtmpPusher _pusher;

        public event EventHandler<ChannelStateEventArgsV2> ChannelStateChanged;

        public bool StartPusher(IExtendedData pushParams, IEnumerable<CPVideoDeviceOutputInfo> deviceInfos)
        {
            try
            {
                var rtmpParams = pushParams as RtmpExtendedData;
                if (rtmpParams == null || rtmpParams.UserInfos.Count == 0)
                {
                    CrossPlatformHelper.Instance.LogWriter?.WriteLineError("RtmpSinglePusherV2 Extended Data Is Null!");
                    return false;
                }
                var url = rtmpParams.UserInfos.FirstOrDefault()?.PushUrl;
                if (string.IsNullOrEmpty(url))
                {
                    CrossPlatformHelper.Instance.LogWriter?.WriteLineError("RtmpSinglePusherV2 Push Url Is Null!");
                    return false;
                }

                if (deviceInfos.Count() == 0)
                {
                    CrossPlatformHelper.Instance.LogWriter?.WriteLineError("RtmpSinglePusherV2 Push not have device info!");
                    return false;
                }
                var userInfo = rtmpParams.UserInfos.FirstOrDefault();
                var deviceInfo = deviceInfos.FirstOrDefault(x => x.Category == userInfo.Category);
                if (deviceInfo == null)
                {
                    CrossPlatformHelper.Instance.LogWriter?.WriteLineError($"RtmpSinglePusherV2 Category {userInfo.Category} No device found!");
                    return false;
                }
                var device = (CPVideoDeviceOutputInfo)deviceInfo.Clone();
                _pusher = new DsRtmpPusher(device, url, pushParams.MicDeviceId, pushParams.IsMute, userInfo.Width, userInfo.Height);
                _pusher.LiveStatusChanged += OnLiveStatusChanged;
                _pusher.ImageFrameReceived += OnImageFrameReceived;
                _pusher.Start();
                return true;
            }
            catch (Exception ex)
            {
                CrossPlatformHelper.Instance.LogWriter?.WriteLineError($"Start Rtmp Single Push Error:{ex}");
            }
            return false;
        }

        public void SetMute(bool isMute)
        {
            _pusher?.SetMute(isMute);
        }

        public bool StopPusher()
        {
            try
            {
                if (_pusher != null)
                {
                    _pusher.LiveStatusChanged -= OnLiveStatusChanged;
                    _pusher.ImageFrameReceived -= OnImageFrameReceived;
                    _pusher.Stop();
                }
                return true;
            }
            catch (Exception ex)
            {
                CrossPlatformHelper.Instance.LogWriter?.WriteLineError($"Stop Rtmp Single Push Error:{ex}");
            }
            return false;
        }

        private void OnImageFrameReceived(object sender, ImageFrameData e)
        {
            var category = (EnumLiveChannelCategory)sender;
            CopyPreviewData(category, e);
        }

        private void OnLiveStatusChanged(object sender, EnumLiveStatus e)
        {
            if (e == EnumLiveStatus.Connected)
            {
                var category = (EnumLiveChannelCategory)sender;
                ChannelStateChanged?.Invoke(this, new ChannelStateEventArgsV2(category, EnumDeviceLiveState.Pushing));
            }
        }

        public override void DoDispose()
        {
            if (_pusher != null)
            {
                _pusher.Dispose();
                _pusher = null;
            }

            base.DoDispose();
        }

        public void SwitchMic(string micId)
        {
        }

        public bool StartSpeedTest(uint appId, string userId, string userSign)
        {
            CrossPlatformHelper.Instance.LogWriter?.WriteLineError($"RtmpSinglePusher Doesn't support StartSpeedTest");
            return false;
        }
    }
}