using RealTimeGraphEx.DataSeries;
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;

namespace RealTimeGraphEx.Controllers
{
    public class GraphMultiController : GraphControllerBase
    {
        private readonly object _lock = new object();

        #region Cross Thread Fields

        internal ObservableCollection<DataYSeries> dataSeriesCollection;

        #endregion

        public int TotalPoints
        {
            get { return dataSeriesCollection.Count > 0 ? dataSeriesCollection[0].Points.Count : 0; }
        }

        internal bool IsAllSeriesEqual
        {
            get { return dataSeriesCollection.All(x => x.Points.Count == dataSeriesCollection[0].Points.Count); }
        }

        internal void TrimToLast()
        {
            lock (dataSeriesCollection)
            {
                if (dataSeriesCollection.Count > 1)
                {
                    var min = dataSeriesCollection.FirstOrDefault(x => x.Points.Count == dataSeriesCollection.Min(y => y.Points.Count));

                    if (min != null)
                    {
                        lock (min.Points)
                        {
                            foreach (var series in dataSeriesCollection)
                            {
                                lock (series.Points)
                                {
                                    if (series.Points.Count > min.Points.Count)
                                    {
                                        series.Points.RemoveRange(min.Points.Count, series.Points.Count - min.Points.Count);
                                    }
                                }
                            }
                        }
                    }
                }
            }
        }

        public ObservableCollection<DataYSeries> DataSeriesCollection
        {
            get { return (ObservableCollection<DataSeries.DataYSeries>)GetValue(DataSeriesCollectionProperty); }
            set { SetValue(DataSeriesCollectionProperty, value); }
        }
        public static readonly DependencyProperty DataSeriesCollectionProperty =
            DependencyProperty.Register("Controller", typeof(ObservableCollection<DataYSeries>), typeof(GraphMultiController), new PropertyMetadata(null, new PropertyChangedCallback(SetCrossThreadFields)));

        private static void SetCrossThreadFields(DependencyObject d, DependencyPropertyChangedEventArgs e)
        {
            (d as GraphMultiController).OnSetCrossModelFields();
        }

        protected virtual void OnSetCrossModelFields()
        {
            this.Dispatcher.Invoke(() =>
            {

                dataSeriesCollection = DataSeriesCollection;

            }, System.Windows.Threading.DispatcherPriority.Send);
        }

        public GraphMultiController()
            : base()
        {
            DataSeriesCollection = new ObservableCollection<DataSeries.DataYSeries>();
        }

        public override void Clear()
        {
            if (clearMethod != null)
            {
                clearMethod();
            }

            dataSeriesCollection.ToList().ForEach(x => x.ClearPoints());
        }

        internal override void ClearPoints()
        {
            dataSeriesCollection.ToList().ForEach(x => x.ClearPoints());
        }

        public virtual void PushData(List<double> values)
        {
            lock (_lock)
            {
                if (startThreadMethod != null)
                {
                    startThreadMethod();
                }

                dataSeriesCollection.ToList().ForEach(x => x.PushData(values));
            }
        }

        public virtual void PushData(double[] values)
        {
            lock (_lock)
            {
                if (startThreadMethod != null)
                {
                    startThreadMethod();
                }

                dataSeriesCollection.ToList().ForEach(x => x.PushData(values));
            }
        }

        public virtual void PushData(params List<double>[] arrays)
        {
            PushData(arrays.ToList());
        }

        public virtual void PushData(List<List<double>> arrays)
        {
            lock (_lock)
            {
                if (startThreadMethod != null)
                {
                    startThreadMethod();
                }

                for (int i = 0; i < arrays.Count; i++)
                {
                    dataSeriesCollection[i].PushData(arrays[i]);
                }
            }
        }

        public virtual void PushData(List<double> array, int dataSeriesIndex)
        {
            lock (_lock)
            {
                if (startThreadMethod != null)
                {
                    startThreadMethod();
                }

                dataSeriesCollection[dataSeriesIndex].PushData(array);
            }
        }

        public virtual void PushDataSingles(List<double> values)
        {
            lock (_lock)
            {
                if (startThreadMethod != null)
                {
                    startThreadMethod();
                }

                for (int i = 0; i < values.Count; i++)
                {
                    dataSeriesCollection[i].PushData(values[i]);
                }
            }
        }

        internal virtual List<List<double>> GetAndClearAllPoints()
        {
            List<List<double>> pointsCollection = new List<List<double>>();

            lock (_lock)
            {
                foreach (var series in dataSeriesCollection)
                {
                    pointsCollection.Add(series.Points.GetAndClearAllPoints());
                }
            }

            return pointsCollection;
        }

        public void AddSeries(DataYSeries dataSeries)
        {
            DataSeriesCollection.Add(dataSeries);
        }
    }
}