using FLY.Thick.Base.Client;
using FLY.Thick.Base.Common;
using FLY.Thick.Base.IService;
using FLY.UI.Module;
using FObjBase;
using LiveCharts;
using Misc;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.IO;
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;
using ThickTcpUiInWindow;
using ThickTcpUiInWindow.UIModule;

namespace FLY.Thick.BlowingScan.UI.Client.UIModule
{
    /// <summary>
    /// FixGraph.xaml 的交互逻辑
    /// </summary>
    public partial class FixGraph : UserControl
    {
        TDGage gage;
        FixGraphViewModel viewModel;
        FixGraphItemParam graphparam;
        public FixGraph()
        {
            InitializeComponent();
        }

        public void Init(int id)
        {
            //查找参数
            graphparam = FixGraphParams.Current.Items.Find(p => p.ID == id);
            if (graphparam == null)
            {
                graphparam = new FixGraphItemParam() { ID = id };
                FixGraphParams.Current.Items.Add(graphparam);
                FixGraphParams.Current.Save();
            }

            //获取设备
            gage = Application.Current.Properties["ThickGage"] as TDGage;

            viewModel = new FixGraphViewModel();
            viewModel.Init(gage.mFixService, graphparam);

            this.DataContext = viewModel;
        }

        private void Button_info_click(object sender, RoutedEventArgs e)
        {
            bool isPaused = viewModel.IsPaused;
            if (!isPaused)
                viewModel.IsPaused = true;
            FixGraphConfig w = new FixGraphConfig();
            w.Init(graphparam);
            w.Owner = FLY.ControlLibrary.COMMON.GetWindow(this);
            w.ShowDialog();
            viewModel.IsPaused = isPaused;
        }

        private void button_pause_Click(object sender, RoutedEventArgs e)
         {
            viewModel.IsPaused = !viewModel.IsPaused;
        }

        private void button_save_Click(object sender, RoutedEventArgs e)
        {
            viewModel.PreSave();
            Window_SaveDatas w = new Window_SaveDatas();
            w.Init(viewModel);
            w.ShowDialog();
        }

        private void button_analyze_Click(object sender, RoutedEventArgs e)
        {
            viewModel.GetDatas(out double intervalms, out List<double> datas);
            Page_FixAnalyze p = new Page_FixAnalyze();
            p.Init(intervalms, datas);
            (Application.Current.Properties["NavigationService"] as NavigationService).Navigate(p);
        }
    }


    public class FixGraphViewModel : ISaveManager, INotifyPropertyChanged
    {
        #region 图表控制
        /// <summary>
        /// 图表Y轴最大值
        /// </summary>
        public double YMax { get; set; } = double.NaN;
        /// <summary>
        /// 图表Y轴最小值
        /// </summary>
        public double YMin { get; set; } = double.NaN;
        /// <summary>
        /// X轴坐标文字显示格式
        /// </summary>
        public Func<double, string> XFormatter { get; set; }
        /// <summary>
        /// Y轴坐标文字显示格式
        /// </summary>
        public Func<double, string> YFormatter { get; set; }
        /// <summary>
        /// 图表X轴最大值
        /// </summary>
        public double XMax { get; set; } = double.NaN;
        /// <summary>
        /// 图表X轴最小值
        /// </summary>
        public double XMin { get; set; } = double.NaN;
        /// <summary>
        /// 显示在chart上的数据
        /// </summary>
        public ChartValues<double> Values { get; } = new ChartValues<double>();
        #endregion

        #region 界面统计值
        /// <summary>
        /// 平均值
        /// </summary>
        public double Average { get; set; }
        /// <summary>
        /// 最大值
        /// </summary>
        public double Max { get; set; }
        /// <summary>
        /// 最小值
        /// </summary>
        public double Min { get; set; }
        /// <summary>
        /// 3sigma
        /// </summary>
        public double Sigma3 { get; set; }
        #endregion

        #region 状态
        /// <summary>
        /// 测试时间
        /// </summary>
        public DateTime Time { get; set; }
        /// <summary>
        /// 间隔
        /// </summary>
        public TimeSpan Interval { get; set; }
        /// <summary>
        /// 间隔,单位ms
        /// </summary>
        public double Intervalms { get; set; }
        /// <summary>
        /// 混合数
        /// </summary>
        public int Mix { get; set; }
        /// <summary>
        /// 暂停
        /// </summary>
        public bool IsPaused { get; set; }
        /// <summary>
        /// AD值模式
        /// </summary>
        public bool IsADMode { get; private set; }
        #endregion
        /// <summary>
        /// 真实接收的数据，与 Values 不一样， Values只是mDatas的一部分
        /// </summary>
        List<double> mDatas = new List<double>();
        
        /// <summary>
        /// 数据保存路径
        /// </summary>
        public string SavePath { get; set; }
        /// <summary>
        /// 自动Y轴中值时，Y轴中值的Value
        /// </summary>
        public double AutoTarget { get; set; }
        /// <summary>
        /// 多少个 mDatas 显示为一个 Values， 限定屏幕最大显示2000个数据
        /// </summary>
        int values_scale = 1;
        /// <summary>
        /// 限定屏幕最大显示2000个数据
        /// </summary>
        const int values_cap = 1000;

        FixServiceClient mFixService;
        FixGraphItemParam graphparam;

        public FixGraphViewModel()
        {
            #region 与数据无关界面参数
            XFormatter = (x) =>
            {
                int index = (int)x;
                double s = Interval.TotalSeconds * index * values_scale;
                return $"{s:F1}s";
            };

            YFormatter = (y) => y.ToString("F1");

            #endregion
        }
        public void Init(FixServiceClient fixService, FixGraphItemParam bulkGraphItemFix)
        {
            mFixService = fixService;
            graphparam = bulkGraphItemFix;

            Update4Graphparam();
            

            graphparam.PropertyChanged += Graphparam_PropertyChanged;
            mFixService.RegistTimeGridEvent(new FixEventHandler(mFixService_TimeGridEvent));

            this.PropertyChanged += FixGraphViewModel_PropertyChanged;
        }

        private void FixGraphViewModel_PropertyChanged(object sender, PropertyChangedEventArgs e)
        {
            if (e.PropertyName == "AutoTarget")
            {
                updateAutoTarget();
            }
        }
        void updateAutoTarget()
        {
            if (!graphparam.IsAutoY && graphparam.IsAutoTarget)
            {
                if ((!double.IsNaN(YMax)) && (!double.IsNaN(YMin)))
                {
                    double mid = (YMax + YMin) / 2;
                    double range = (YMax - YMin) / 2;
                    double ymax2 = mid + range / 2;
                    double ymin2 = mid - range / 2;
                    if ((AutoTarget < ymax2) && (AutoTarget > ymin2))
                    {
                        if (Math.Abs(range - graphparam.YRange) < 0.05)
                        {
                            //还在范围内，不需要改变 Y轴范围
                            return;
                        }
                    }
                }
                YMax = AutoTarget + graphparam.YRange;
                YMin = AutoTarget - graphparam.YRange;
            }
        }
        private void Graphparam_PropertyChanged(object sender, PropertyChangedEventArgs e)
        {
            if (e.PropertyName == "Interval")
            {
                UpdateInterval();
            }
            else if (e.PropertyName == "Mix")
            {
                UpdateMix();
            }
            else if (e.PropertyName == "Len")
            {
                UpdateX();
            }
            else if ((e.PropertyName == "IsAutoY") ||
                (e.PropertyName == "IsAutoTarget") ||
                (e.PropertyName == "YRange") ||
                (e.PropertyName == "YTarget"))
            {
                UpdateY();
            }
            else if (e.PropertyName == "IsADMode")
            {
                UpdateIsADMode();
            }
        }
        void Update4Graphparam()
        {
            UpdateInterval();
            UpdateMix();

            UpdateX();
            UpdateY();

            UpdateIsADMode();
        }
        void UpdateX()
        {            
            if (graphparam.Len > values_cap)
                values_scale = graphparam.Len / values_cap;
            else
                values_scale = 1;
            
            XMax = (int)(graphparam.Len / values_scale);//最后算出来 的数量肯定大于 values_cap,没关系，反正数据量少了
            XMin = 0; 
        }

        void UpdateY()
        {
            if (graphparam.IsAutoY)
            {
                YMax = double.NaN;
                YMin = double.NaN;
            }
            else if (graphparam.IsAutoTarget)
            {
                updateAutoTarget();
                //YMax = AutoTarget + graphparam.YRange;
                //YMin = AutoTarget - graphparam.YRange;
            }
            else
            {
                YMax = graphparam.YTarget + graphparam.YRange;
                YMin = graphparam.YTarget - graphparam.YRange;
            }

        }
        void UpdateInterval()
        {
            TimeSpan interval;
            if (graphparam.Interval < 10)
                interval = TimeSpan.FromTicks((long)(graphparam.Interval * TimeSpan.TicksPerMillisecond * 1.28));
            else
                interval = TimeSpan.FromTicks((long)(graphparam.Interval * TimeSpan.TicksPerMillisecond));
            Interval = interval;
            Intervalms = ((double)(Interval.Ticks)) / TimeSpan.TicksPerMillisecond;
        }
        void UpdateMix()
        {
            Mix = graphparam.Mix;
        }

        void UpdateIsADMode()
        {
            IsADMode = graphparam.IsADMode;
            //清空全部数据
            Clear();

            UpdateStat();
        }

        /// <summary>
        /// 全部 mDatas 重新放入Values
        /// </summary>
        /// <param name="datas"></param>
        void RefreshValues(List<double> datas)
        {
            Values.Clear();


            //显示在屏幕的数据，只能有2000个
            if (values_scale <= 1)
            {
                foreach (var d in datas)
                    Values.Add(d);
            }
            else
            {
                data_show.Clear();
                foreach (var d in datas)
                {
                    data_show.Add(d);
                    if (data_show.Count >= values_scale)
                    {
                        Values.Add(data_show.Average());
                        data_show.Clear();
                    }
                }
            }
        }

        /// <summary>
        /// 增量数据，添加到 Values
        /// </summary>
        /// <param name="datas"></param>
        void RefreshValuesMore(List<double> datas)
        {
            //显示在屏幕的数据，只能有2000个
            
            if (values_scale <=1)
            {
                
                foreach (var d in datas)
                    Values.Add(d);

                while (Values.Count > graphparam.Len)
                    Values.RemoveAt(0);
            }
            else
            {

                foreach (var d in datas)
                {
                    data_show.Add(d);
                    if (data_show.Count >= values_scale)
                    {
                        Values.Add(data_show.Average());
                        data_show.Clear();
                    }
                }

                //删除数据
                while (Values.Count > graphparam.Len / values_scale)
                    Values.RemoveAt(0);
            }
        }
        public void Clear()
        {

            mDatas.Clear();
            data_interval.Clear();
            data_mix.Clear();
            data_show.Clear();
            data_interval_totaltime = TimeSpan.Zero;
        }
        #region 用于间隔
        /// <summary>
        /// 显示数据用，mDatas->mPoints 的转换
        /// </summary>
        List<double> data_show = new List<double>();
        /// <summary>
        /// interval 时间内数据整合
        /// </summary>
        List<double> data_interval = new List<double>();
        /// <summary>
        /// data_interval 的总时间
        /// </summary>
        TimeSpan data_interval_totaltime = TimeSpan.Zero;
        /// <summary>
        /// 数据混合
        /// </summary>
        List<double> data_mix = new List<double>();
        #endregion

        void mFixService_TimeGridEvent(object sender, FixEventArgs e)
        {
            if (IsPaused)
                return;
            //输入1.28ms 的数据， 输出 混合为mix，间隔为 interval 的数据
            List<double> data_out = new List<double>();

            for (int i = 0; i < e.thicks.Length; i++)
            {
                double v = (IsADMode) ? e.ADs[i] : e.thicks[i];
                data_interval.Add(v);
                data_interval_totaltime += e.ts;

                if (data_interval_totaltime >= Interval)
                {
                    double avg = data_interval.Average();
                    data_interval.Clear();
                    data_interval_totaltime -= Interval;

                    data_mix.Add(avg);
                    int len = data_mix.Count - graphparam.Mix;
                    if (len > 0)
                        data_mix.RemoveRange(0, len);
                    data_out.Add(data_mix.Average());
                }
            }

            if (data_out.Count() > 0)
            {
                Time = e.time;
                AddPoint(data_out);
            }
        }
        void UpdateStat()
        {
            if (mDatas.Count() == 0)
            {
                Max = double.NaN;
                Min = double.NaN;
                Average = double.NaN;
                Sigma3 = double.NaN;
                AutoTarget = double.NaN;
                return;
            }

            Max = mDatas.Max();
            Min = mDatas.Min();
            Average = mDatas.Average();
            Sigma3 = mDatas.Sigma() * 3;

            if (mDatas.Count > 100)
            {
                //最后100个数据的平均值
                AutoTarget = mDatas.Skip(mDatas.Count - 100).Average();
            }
            else
            {
                AutoTarget = Average;
            }
        }
        /// <summary>
        /// 1.28ms 经过重新 划分间隔， 混合后的数据，添加到 mDatas
        /// </summary>
        /// <param name="datas"></param>
        void AddPoint(List<double> datas)
        {
            mDatas.AddRange(datas);

            //删除数据
            if (mDatas.Count > graphparam.Len)
                mDatas.RemoveRange(0, mDatas.Count - graphparam.Len);

            //更新状态
            UpdateStat();
            
            //增量数据，添加到 Values
            RefreshValuesMore(datas);
        }

        public void PreSave()
        {
            string directory = System.IO.Path.GetDirectoryName(SavePath);
            if (string.IsNullOrEmpty(directory))
            {
                directory = Environment.GetFolderPath(Environment.SpecialFolder.DesktopDirectory);
            }
            string filename = $"{DateTime.Now:yyyyMMdd_HHmmss}.csv";
            SavePath = System.IO.Path.Combine(directory, filename);
        }

        AsyncCBHandler mAsyncDelegate;
        object mAsyncState;
        /// <summary>
        /// 成功或失败，会调用 AsyncDelegate
        /// </summary>
        /// <param name="AsyncDelegate"></param>
        /// <param name="AsyncState"></param>
        public void Save(AsyncCBHandler AsyncDelegate, object AsyncState)
        {
            //需要异步！！！！
            if (!IsPaused)
            {
                mAsyncDelegate(mAsyncState, false);
                return;
            }
            mAsyncDelegate = AsyncDelegate;
            mAsyncState = AsyncState;
            Task.Factory.StartNew(Output);
        }
        void Output()
        {
            string path = SavePath;
            try
            {
                using (StreamWriter sw = new StreamWriter(path, false, Encoding.GetEncoding("GB2312")))
                {
                    double ms = graphparam.Interval;
                    if (ms < 10)
                        ms *= 1.28;
                    if (IsADMode)
                    {
                        sw.WriteLine("时间(ms),AD");
                        for (int i = 0; i < mDatas.Count(); i++)
                        {
                            double d = mDatas[i];
                            sw.WriteLine($"{(i * ms):F2},{d:F0}");
                        }
                    }
                    else
                    {
                        sw.WriteLine("时间(ms),数据");
                        for (int i = 0; i < mDatas.Count(); i++)
                        {
                            double d = mDatas[i];
                            sw.WriteLine($"{(i * ms):F2},{d:F2}");
                        }
                    }
                    sw.Flush();
                    sw.Close();
                }
                mAsyncDelegate(mAsyncState, true);
            }
            catch (Exception e)
            {
                mAsyncDelegate(mAsyncState, false);
            }
        }

        public void GetDatas(out double intervalms, out List<double> datas)
        {
            intervalms = Intervalms;
            datas = mDatas;
        }

        #region INotifyPropertyChanged 成员

        public event PropertyChangedEventHandler PropertyChanged;

        #endregion
    }

    public class FixGraphViewModel_UnitTest : INotifyPropertyChanged
    {
        #region 图表控制
        public double YMax { get; set; } = double.NaN;
        public double YMin { get; set; } = double.NaN;

        public Func<double, string> XFormatter { get; set; }
        public Func<double, string> YFormatter { get; set; }

        public double XMax { get; set; } = double.NaN;

        public ChartValues<double> Values { get; } = new ChartValues<double>();
        #endregion
        #region 界面统计值
        /// <summary>
        /// 平均值
        /// </summary>
        public double Average { get; set; }
        /// <summary>
        /// 最大值
        /// </summary>
        public double Max { get; set; }
        /// <summary>
        /// 最小值
        /// </summary>
        public double Min { get; set; }
        /// <summary>
        /// 3sigma
        /// </summary>
        public double Sigma3 { get; set; }
        #endregion

        #region 状态
        public DateTime Time { get; set; }
        public TimeSpan Interval { get; set; }
        public double Intervalms { get; set; }
        public int Mix { get; set; }

        public bool IsPaused { get; set; }
        #endregion


        /// <summary>
        /// 为了画图快，曲线只能显示最多1000个点
        /// </summary>
        const int TotalValueCountInView = 1000;


        public FixGraphViewModel_UnitTest()
        {
            #region 与数据无关界面参数
            XFormatter = (x) =>
            {
                int index = (int)x;
                double s = Interval.TotalSeconds * index;
                return $"{s:F1}s";
            };

            YFormatter = (y) => y.ToString("F1");
            Interval = TimeSpan.FromTicks((long)(TimeSpan.TicksPerMillisecond * 1.28));
            Intervalms = ((double)(Interval.Ticks)) / TimeSpan.TicksPerMillisecond;
            #endregion
            Random random = new Random();
            List<double> values = new List<double>();
            for (int i = 0; i < 1000; i++)
            {
                double v = (Math.Sin(i * Math.PI / 400.0) * 0.6) * 2 + 72 + (random.NextDouble() - 0.5) * 1;
                values.Add(v);
            }

            Values.AddRange(values);

        }


        public event PropertyChangedEventHandler PropertyChanged;
    }
    /// <summary>
    /// 
    /// </summary>
    public class FixGraphItemParam : ThickTcpUiInWindow.UIModule.UIModuleParam
    {
        int len = 120;
        public int Len
        {
            get { return len; }
            set {
                if (value < 100)
                    value= 100;
                else if (value > 50000)
                   value = 50000;

                if (len != value)
                {
                    len = value;
                }
            }

        }

        private int interval = 1000;
        /// <summary>
        /// 间隔，只能选 1, 10, 100, 1000, 这些单位；
        /// 特别的，1 = 1.28ms，10=10ms，100=100ms
        /// </summary>
        public int Interval
        {
            get { return interval; }
            set
            {
                if (value < 1)//最短1.28ms
                    value = 1;
                else if (value > 3000)//最长3s
                    value = 3000;
                if(interval!=value)
                {
                    interval = value;

                }
            }
        }

        private int mix = 3;

        public int Mix
        {
            get {
                return mix;
            }
            set {
                if (value < 1)
                    value = 1;
                else if (value > 100)
                    value = 100;

                if (mix != value)
                {
                    mix = value;
                }
            }
        }
        
        /// <summary>
        /// 自动目标值
        /// </summary>
        public bool IsAutoTarget { get; set; }

        /// <summary>
        /// 显示AD值
        /// </summary>
        public bool IsADMode { get; set; }

        /// <summary>
        /// 自动Y轴
        /// </summary>
        public bool IsAutoY { get; set; }
        public double YTarget { get; set; }

        double yrange = 1;

        public double YRange
        {
            get { return yrange; }
            set {
                if (value <= 0)
                    value = 1;

                if (yrange != value)
                {
                    yrange = value;
                }
            }
        }


        public void CopyTo(FixGraphItemParam dest)
        {
            dest.ID = ID;
            dest.Len = Len;
            dest.Interval = Interval;
            dest.Mix = Mix;
            dest.IsAutoTarget = IsAutoTarget;
            dest.IsAutoY = IsAutoY;
            dest.IsADMode = IsADMode;
            dest.YRange = YRange;
            dest.YTarget = YTarget;
        }





        public override string[] GetSavePropertyNames()
        {
            List<string> names = new List<string>(base.GetSavePropertyNames());
            names.AddRange(new string[]{
                "Len",
                "Interval",
                "Mix",
                "IsAutoTarget",
                "IsAutoY",
                "IsADMode",
                "YTarget",
                "YRange"
            });
            return names.ToArray();
        }
    }

    /// <summary>
    /// 全部扫描图的参数
    /// </summary>
    public class FixGraphParams : UIModuleParams<FixGraphItemParam>
    {

        static FixGraphParams()
        {
            Misc.SaveToXmlHepler.Regist(typeof(FixGraphParams));
        }
        public FixGraphParams()
        {
            string path = System.IO.Path.Combine(FLYLayout.BasePath, "fixgraph.xml");
            FilePath = path;
        }
        static FixGraphParams current = null;
        public static FixGraphParams Current
        {
            get
            {
                if (current == null)
                {
                    current = new FixGraphParams();
                    current.Load();
                }
                return current;
            }
        }
    }

    /// <summary>
    /// 扫描图控件模块
    /// </summary>
    public class UIModule_FixGraph : IUIModule
    {
        /// <summary>
        /// 控件标题
        /// 它的值取决于culture
        /// </summary>
        public string Title
        {
            get
            {
                return "定点图";
            }
        }

        /// <summary>
        /// 控件
        /// 创建时，需要给它唯一ID，让加载自己的数据
        /// </summary>
        /// <param name="id"></param>
        /// <returns></returns>
        public FrameworkElement GetComponent(int id)
        {
            FixGraph graph = new FixGraph();
            graph.Init(id);
            return graph;
        }

        /// <summary>
        /// 控件缩略图，用于编辑界面时，大致看看
        /// 创建时，需要给它唯一ID，让加载自己的数据
        /// </summary>
        /// <param name="id"></param>
        /// <returns></returns>
        public FrameworkElement GetThumbnail(int id)
        {
            return new System.Windows.Controls.Grid();
        }


        /// <summary>
        /// 给出全部控件ID, 控件自行删除没有的参数
        /// </summary>
        /// <param name="IDs"></param>
        public void MatchParam(int[] IDs)
        {
            FixGraphParams.Current.MatchParam(IDs);
        }
    }
}