using System;
using System.Collections.Generic;
using System.Linq;
using System.Reflection;
using System.Threading;
using Vinno.FIS.TRTCClient.Common.Enum;
using Vinno.IUS.Common.Log;
using Vinno.IUS.Common.Network.Leaf;
using Vinno.IUS.Common.Network.Transfer;
using Vinno.vCloud.FIS.CrossPlatform.Common;
using Vinno.vCloud.FIS.CrossPlatform.Common.LiveVideo;
using Vinno.vCloud.Protocol.Infrastructures;
using Vinno.vCloud.Protocol.Messages.Client;
using Vinno.vCloud.Protocol.Messages.Client.Live;
using Vinno.vCloud.Protocol.Messages.Live;

namespace Vinno.vCloud.Common.FIS.LiveVideos
{
    internal class LiveVideoPusherManager : ILiveVideoPusherManager
    {
        private readonly string _terminalId;
        private readonly string _terminalName;
        private readonly ManualResetEvent _timingRefreshManualResetEvent = new ManualResetEvent(false);
        private readonly ClientLeaf _leaf;

        private bool _disposed;
        private EnumPusherType _currentPushType;
        private SonopostLiveVideoPusher _liveVideoPusher;
        private readonly List<CPVideoDeviceInfo> _currentVideoDeviceInfoList;

        public bool IsPushing => _liveVideoPusher?.IsPushing ?? false;

        public EnumPusherType CurrentPushType => _currentPushType;

        public event EventHandler<ImageFrameData> PreviewImageReceived;

        public event EventHandler<PusherState> PusherStateChanged;

        public LiveVideoPusherManager(string terminalId, string terminalName, ClientLeaf leaf)
        {
            _terminalId = terminalId;
            _terminalName = terminalName;
            _leaf = leaf;
            _currentPushType = EnumPusherType.RtcMerge;
            _currentVideoDeviceInfoList = new List<CPVideoDeviceInfo>();
            _liveVideoPusher = new SonopostLiveVideoPusher(leaf, terminalId, terminalName);
            _liveVideoPusher.PusherStateChanged += OnPusherStateChanegd;
            Init();
        }

        private void Init()
        {
            RegisterPusherCreations();
            InitCurrentPusherType();
        }

        private void RegisterPusherCreations()
        {
            if (_liveVideoPusher != null)
            {
                _liveVideoPusher.RegisterPusher(EnumPusherType.RtmpMerge, () => CrossPlatformHelper.Instance.LiveVideoPusherCreatorForSonopost.CreateRTMPMergePusher());
                _liveVideoPusher.RegisterPusher(EnumPusherType.RtmpMulti, () => CrossPlatformHelper.Instance.LiveVideoPusherCreatorForSonopost.CreateRTMPMultiPusher());
                _liveVideoPusher.RegisterPusher(EnumPusherType.RtmpSingle, () => CrossPlatformHelper.Instance.LiveVideoPusherCreatorForSonopost.CreateRTMPSinglePusher());
                _liveVideoPusher.RegisterPusher(EnumPusherType.RtcMerge, () => CrossPlatformHelper.Instance.LiveVideoPusherCreatorForSonopost.CreateRTCMergePusher());
                _liveVideoPusher.RegisterPusher(EnumPusherType.RtcMulti, () => CrossPlatformHelper.Instance.LiveVideoPusherCreatorForSonopost.CreateRTCMultiPusher());
                _liveVideoPusher.RegisterPusher(EnumPusherType.RtcSingle, () => CrossPlatformHelper.Instance.LiveVideoPusherCreatorForSonopost.CreateRTCSinglePusher());
            }
        }

        public void LiveStateChanged(LiveEventArgs liveEventArgs)
        {
            _liveVideoPusher?.LiveStateChanged(liveEventArgs);
        }

        public void PushModeChanged(LiveDataMode pushLiveMode, LiveProtocol liveProtocol)
        {
            SetCurrentPusherType(pushLiveMode, liveProtocol);
            UpdateDeviceResoution(_currentVideoDeviceInfoList);
            //RestartPusher();
        }

        private void SetCurrentPusherType(LiveDataMode pushLiveMode, LiveProtocol liveProtocol)
        {
            if (liveProtocol == LiveProtocol.RTC)
            {
                if (pushLiveMode == LiveDataMode.MergeLive)
                {
                    if (_currentVideoDeviceInfoList.Count <= 1)
                    {
                        _currentPushType = EnumPusherType.RtcSingle;
                    }
                    else
                    {
                        _currentPushType = EnumPusherType.RtcMerge;
                    }
                }
                else if (pushLiveMode == LiveDataMode.OnlyLive)
                {
                    _currentPushType = EnumPusherType.RtcMulti;
                }
                else
                {
                    throw new Exception($"Live Video Pusher Manager SetCurrentPusherType Error:Unknown Pusher Type:{pushLiveMode}|{liveProtocol}");
                }
            }
            else if (liveProtocol == LiveProtocol.Rtmp)
            {
                if (pushLiveMode == LiveDataMode.MergeLive)
                {
                    if (_currentVideoDeviceInfoList.Count <= 1)
                    {
                        _currentPushType = EnumPusherType.RtmpSingle;
                    }
                    else
                    {
                        _currentPushType = EnumPusherType.RtmpMerge;
                    }
                }
                else if (pushLiveMode == LiveDataMode.OnlyLive)
                {
                    _currentPushType = EnumPusherType.RtmpMulti;
                }
                else
                {
                    throw new Exception($"Live Video Pusher Manager SetCurrentPusherType Error:Unknown Pusher Type:{pushLiveMode}|{liveProtocol}");
                }
            }
            else
            {
                throw new Exception($"Live Video Pusher Manager SetCurrentPusherType Error:Unknown Pusher Type:{pushLiveMode}|{liveProtocol}");
            }
            Logger.WriteLineInfo($"Live VideoManager Current Push Type:{_currentPushType}");
        }

        public void RestartPusher()
        {
            _liveVideoPusher?.ReStartPusher();
        }

        private void OnPusherStateChanegd(object sender, PusherState e)
        {
            PusherStateChanged?.Invoke(this, e);
        }

        public void SetIsPaused(bool isPaused)
        {
            _liveVideoPusher?.SetIsPaused(isPaused);
        }

        private void UpdateDeviceResoution(List<CPVideoDeviceInfo> videoDeviceInfos)
        {
            try
            {
                Logger.WriteLineInfo("LiveVideo PusherManager UpdateDeviceResoution");
                var list = new List<CPVideoDeviceInfo>();
                if (videoDeviceInfos != null)
                {
                    foreach (var device in videoDeviceInfos)
                    {
                        var item = device.Clone() as CPVideoDeviceInfo;
                        var cability = CrossPlatformHelper.Instance.HardwareDetector.GetMaxResolutionUnderTheSpecial(item.Id, item.Width, item.Height, _currentPushType, device.Category);
                        if (cability != null)
                        {
                            item.Width = cability.Width;
                            item.Height = cability.Height;
                        }
                        list.Add(item);
                    }
                }
                UpdateLiveChannelInfos(list);
                _liveVideoPusher?.StopPusher();
            }
            catch (Exception ex)
            {
                Logger.WriteLineError($"UpdateDeviceResoution Error:{ex}");
            }
        }

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

        public List<string> GetBrandList()
        {
            var brandList = new List<string>();
            using (var request = MessagePool.GetMessage<GetPushLiveConfigRequest>())
            {
                request.TerminalId = _terminalId;
                var resultMessage = _leaf.Send(request);
                var result = GetPushLiveConfigResult.Convert(resultMessage);
                if (result != null)
                {
                    foreach (var brand in result.PushLiveConfigs)
                    {
                        brandList.Add(brand.Brand);
                    }
                }
            }
            return brandList;
        }

        public List<string> GetModelList(string brand)
        {
            if (string.IsNullOrWhiteSpace(brand))
            {
                Logger.WriteLineError($"LiveVideoPusherManager GetModelList Error:brand is null");
                return new List<string>();
            }
            var modelList = new List<string>();
            using (var request = MessagePool.GetMessage<GetPushLiveConfigRequest>())
            {
                request.TerminalId = _terminalId;
                var resultMessage = _leaf.Send(request);
                var result = GetPushLiveConfigResult.Convert(resultMessage);
                if (result != null)
                {
                    var selectedBrand = result.PushLiveConfigs.FirstOrDefault(x => x.Brand == brand);
                    if (selectedBrand != null && selectedBrand.PushLiveModelConfigs != null)
                    {
                        foreach (var model in selectedBrand.PushLiveModelConfigs)
                        {
                            modelList.Add(model.Model);
                        }
                    }
                }
            }
            return modelList;
        }

        public DeviceRecommandResolution GetRecommandResolution(string brand, string model)
        {
            try
            {
                if (string.IsNullOrWhiteSpace(brand))
                {
                    Logger.WriteLineError($"LiveVideoPusherManager GetRecommandResolution Error:brand is null");
                    return null;
                }
                if (string.IsNullOrWhiteSpace(model))
                {
                    Logger.WriteLineError($"LiveVideoPusherManager GetRecommandResolution Error:model is null");
                    return null;
                }
                using (var request = MessagePool.GetMessage<GetPushLiveConfigRequest>())
                {
                    request.TerminalId = _terminalId;
                    var resultMessage = _leaf.Send(request);
                    var result = GetPushLiveConfigResult.Convert(resultMessage);
                    if (result != null)
                    {
                        var selectedBrand = result.PushLiveConfigs.FirstOrDefault(x => x.Brand == brand);
                        if (selectedBrand != null && selectedBrand.PushLiveModelConfigs != null)
                        {
                            var selectedModel = selectedBrand.PushLiveModelConfigs.FirstOrDefault(x => x.Model == model);
                            if (selectedModel != null)
                            {
                                return new DeviceRecommandResolution(brand, null, model, selectedModel.RecommendWidth, selectedModel.RecommendHeight);
                            }
                            else
                            {
                                Logger.WriteLineError($"LiveVideoPusherManager GetRecommandResolution Error:Model Didn't find RecommandResolution");
                                return null;
                            }
                        }
                        else
                        {
                            Logger.WriteLineError($"LiveVideoPusherManager GetRecommandResolution Error:Brand Didn't find");
                            return null;
                        }
                    }
                }
                return null;
            }
            catch (Exception ex)
            {
                Logger.WriteLineError($"LiveVideoPusherManager GetRecommandResolution Error:{ex}");
                return null;
            }
        }

        private void InitCurrentPusherType()
        {
            var brandList = new List<DeviceBrandInfo>();
            using (var request = MessagePool.GetMessage<GetPushLiveConfigRequest>())
            {
                request.TerminalId = _terminalId;
                var resultMessage = _leaf.Send(request);
                var result = GetPushLiveConfigResult.Convert(resultMessage);
                if (result != null)
                {
                    SetCurrentPusherType(result.PushLiveMode, result.LiveProtocol);
                }
            }
        }

        private void UpdateLiveChannelInfos(IEnumerable<CPVideoDeviceInfo> infos)
        {
            var version = Assembly.GetExecutingAssembly().GetName().Version;

            using (var request = MessagePool.GetMessage<NewUpdateTerminalMultiRelatedInfoRequest>())
            {
                request.TerminalName = _terminalName;
                request.Version = version.ToString();
                var terminalChannels = new List<TerminalChannelInfoMessage>();
                foreach (var info in infos)
                {
                    Logger.WriteLineInfo($"Update Channel Info:{info}");
                    var channelMessage = new TerminalChannelInfoMessage();
                    channelMessage.Width = info.Width;
                    channelMessage.Height = info.Height;
                    channelMessage.Name = info.Category.ToString();
                    channelMessage.Enable = info.IsEnable && info.IsAvailable;
                    channelMessage.Fps = info.FrameRate;
                    channelMessage.Bitrate = info.Bitrate;
                    channelMessage.Brand = info.Brand;
                    channelMessage.ModelId = info.ModelId;
                    channelMessage.Category = (LiveChannelCategory)info.Category;
                    terminalChannels.Add(channelMessage);
                }
                request.TerminalChannels = terminalChannels;
                var result = _leaf.Send(request);
                var resultMsg = ResultMessage.Convert(result);
                string channelInfos = string.Empty;
                if (infos != null)
                {
                    foreach (var info in infos)
                    {
                        channelInfos += info.ToString();
                    }
                }
                if (resultMsg == CCR.OK)
                {
                    Logger.WriteLineInfo($"UpdateLiveChannelInfos Success! {channelInfos}");
                }
                else
                {
                    Logger.WriteLineError($"UpdateLiveChannelInfos Fail! {channelInfos}");
                }
            }
        }

        public void StartPreview(EnumLiveChannelCategory category)
        {
            if (_liveVideoPusher?.LivePusher is PusherBase pusher)
            {
                pusher.PreviewImageReceived += OnPreviewImageReceived;
                pusher.StartPreview(category);
            }
        }

        public void StopPreview()
        {
            if (_liveVideoPusher?.LivePusher is PusherBase pusher)
            {
                pusher.PreviewImageReceived -= OnPreviewImageReceived;
                pusher.StopPreview();
            }
        }

        private void OnPreviewImageReceived(object sender, ImageFrameData e)
        {
            PreviewImageReceived?.Invoke(sender, e);
        }

        public void Dispose()
        {
            if (!_disposed)
            {
                DoDispose();
                GC.SuppressFinalize(this);
                _disposed = true;
            }
        }

        public void DoDispose()
        {
            _timingRefreshManualResetEvent.Set();
            StopPreview();
            if (_liveVideoPusher != null)
            {
                _liveVideoPusher.PusherStateChanged -= OnPusherStateChanegd;
                _liveVideoPusher.Dispose();
                _liveVideoPusher = null;
            }
        }

        public void UpdateCurrentVideoDeviceInfoList(List<CPVideoDeviceInfo> infos)
        {
            _currentVideoDeviceInfoList.Clear();
            if (infos != null)
            {
                foreach (var info in infos)
                {
                    var item = info.Clone() as CPVideoDeviceInfo;
                    _currentVideoDeviceInfoList.Add(item);
                }
            }
            _liveVideoPusher.UpdateCurrentVideoDeviceInfoList(infos);
            if (_currentPushType == EnumPusherType.RtcSingle || _currentPushType == EnumPusherType.RtcMerge)
            {
                PushModeChanged(LiveDataMode.MergeLive, LiveProtocol.RTC);
            }
            else if (_currentPushType == EnumPusherType.RtcMulti)
            {
                PushModeChanged(LiveDataMode.OnlyLive, LiveProtocol.RTC);
            }
            else if (_currentPushType == EnumPusherType.RtmpSingle || _currentPushType == EnumPusherType.RtmpMerge)
            {
                PushModeChanged(LiveDataMode.MergeLive, LiveProtocol.Rtmp);
            }
            else if (_currentPushType == EnumPusherType.RtmpMulti)
            {
                PushModeChanged(LiveDataMode.OnlyLive, LiveProtocol.Rtmp);
            }
        }

        ~LiveVideoPusherManager()
        {
            Dispose();
        }
    }
}