using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Signal_Generator
{
    public class MultiSignal : IAnalogSignal
    {
        private static MultiSignal instance;
        internal ObservableCollection<IAnalogSignal> signals { get; private set; }

        private MultiSignal()
        {
            signals = new ObservableCollection<IAnalogSignal>();
        }

        public static MultiSignal getInstance()
        {
            if (instance == null)
                instance = new MultiSignal();
            return instance;
        }

        internal void Add(IAnalogSignal signal)
        {
            signals.Add(signal);
        }

        internal void Remove(IAnalogSignal signal)
        {
            signals.Remove(signal);
        }

        internal int Count()
        {
            return signals.Count();
        }

        public double currentAmplitude(double t)
        {
            double summaryAmplitude = 0;
            foreach (IAnalogSignal item in signals)
            {
                summaryAmplitude += item.currentAmplitude(t);
            }
            return summaryAmplitude;
        }

        // Неиспользуемые поля и методы

        public string typeToString => throw new NotImplementedException();
        string IAnalogSignal.paramsToString => throw new NotImplementedException();
        string IAnalogSignal.typeToString => throw new NotImplementedException();
        Collection<Parameter> IAnalogSignal.paramsCollection { get => throw new NotImplementedException(); set => throw new NotImplementedException(); }
        double IAnalogSignal.currentAmplitude(double t)
        {
            throw new NotImplementedException();
        }
    }
}