using System;
using System.Collections.Concurrent;
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 RtmpMultiPusherV2 : PusherBase, ILiveVideoPusherV2
    {
        private readonly ConcurrentDictionary<EnumLiveChannelCategory, DsRtmpPusher> _pushers;

        public event EventHandler<ChannelStateEventArgsV2> ChannelStateChanged;

        public RtmpMultiPusherV2()
        {
            _pushers = new ConcurrentDictionary<EnumLiveChannelCategory, DsRtmpPusher>();
        }

        public bool StartPusher(IExtendedData pushParams, IEnumerable<CPVideoDeviceOutputInfo> deviceInfos)
        {
            var rtmpParams = pushParams as RtmpExtendedData;
            if (rtmpParams == null || rtmpParams.UserInfos.Count == 0)
            {
                CrossPlatformHelper.Instance.LogWriter?.WriteLineError("RtmpMultiPusherV2 Extended Data Is Null!");
                return false;
            }
            var userInfos = rtmpParams.UserInfos;
            for (int i = 0; i < userInfos.Count(); i++)
            {
                var deviceInfo = deviceInfos.FirstOrDefault(x => x.Category == userInfos[i].Category);
                if (deviceInfo != null)
                {
                    var device = (CPVideoDeviceOutputInfo)deviceInfo.Clone();
                    bool isMute = true;
                    string micId = "";
                    if (i == 0)
                    {
                        isMute = rtmpParams.IsMute;
                        micId = rtmpParams.MicDeviceId;
                    }
                    var pusher = new DsRtmpPusher(device, userInfos[i].PushUrl, micId, isMute, userInfos[i].Width, userInfos[i].Height);
                    if (_pushers.TryAdd(userInfos[i].Category, pusher))
                    {
                        pusher.LiveStatusChanged += OnLiveStatusChanged;
                        pusher.ImageFrameReceived += OnImageFrameReceived;
                        pusher.Start();
                    }
                    else
                    {
                        pusher.Dispose();
                    }
                }
                else
                {
                    CrossPlatformHelper.Instance.LogWriter?.WriteLineError($"RtmpMultiPusherV2 Can not find {userInfos[i].Category} User Info!");
                }
            }
            return true;
        }

        public void SetMute(bool isMute)
        {
            if (_pushers.Count > 0)
            {
                _pushers[0].SetMute(isMute);
            }
        }

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

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

        public bool StopPusher()
        {
            foreach (var pusher in _pushers.Values)
            {
                pusher.LiveStatusChanged -= OnLiveStatusChanged;
                pusher.ImageFrameReceived -= OnImageFrameReceived;
                pusher.Stop();
            }
            return true;
        }

        public override void DoDispose()
        {
            foreach (var pusher in _pushers.Values)
            {
                pusher.Dispose();
            }
            _pushers.Clear();
            base.DoDispose();
        }

        public void SwitchMic(string micId)
        {
        }

        public bool StartSpeedTest(uint appId, string userId, string userSign)
        {
            CrossPlatformHelper.Instance.LogWriter?.WriteLineError($"RtmpMultiPusherV2 Doesn't support StartSpeedTest");
            return false;
        }
    }
}