using System;
using System.ComponentModel;

namespace DatabaseImport
{
    [Serializable]
    public class RegionOfInterest : INotifyPropertyChanged
    {

        public RegionOfInterest()
        {
            Suffix = string.Empty;
            Start = -1D;
            End = 1D;
            IsEnabled = true;
            IsDefault = true;
        }

        public RegionOfInterest(bool isDefault = false)
            : this()
        {
            IsDefault = isDefault;
        }
        public RegionOfInterest(string suffix = "", bool isDefault = false, double start = -1D, double end = 1D)
            : this(isDefault)
        {
            Suffix = suffix;
            Start = start;
            End = end;
        }
        private string _suffix = string.Empty;
        public string Suffix
        {
            get => _suffix;
            set
            {
                if (!string.IsNullOrWhiteSpace(value) && !(value.StartsWith("_") && string.IsNullOrWhiteSpace(value.Substring(1))))
                {
                    _suffix = value.StartsWith("_") ? value : "_" + value;
                }
                OnPropertyChanged("Suffix");
            }
        }

        private double _start = double.MinValue;
        public double Start
        {
            get => _start;
            set
            {
                if (value >= End)
                {
                    value = End - 0.01;
                }
                if (value < PreTrigger)
                {
                    value = PreTrigger;
                }
                _start = value;
                OnPropertyChanged("Start");
            }
        }

        private double _end = double.MaxValue;
        public double End
        {
            get => _end;
            set
            {
                if (value <= Start)
                {
                    value = Start + 0.01;
                }
                if (value > PostTrigger)
                {
                    value = PostTrigger;
                }
                _end = value; OnPropertyChanged("End");
            }
        }

        private double _preTrigger = double.MinValue;
        public double PreTrigger
        {
            get => _preTrigger;
            set
            {
                _preTrigger = value;
                OnPropertyChanged("PreTrigger");
                if (Start < PreTrigger)
                {
                    Start = PreTrigger;
                }
            }
        }

        private double _postTrigger = double.MaxValue;
        public double PostTrigger
        {
            get => _postTrigger;
            set
            {
                _postTrigger = value;
                OnPropertyChanged("PostTrigger");
                if (End > PostTrigger)
                {
                    End = PostTrigger;
                }
            }
        }

        private bool _isEnabled = true;
        public bool IsEnabled
        {
            get => _isEnabled;
            set { _isEnabled = value; OnPropertyChanged("IsEnabled"); }
        }

        public bool IsDefault { get; private set; }

        public event PropertyChangedEventHandler PropertyChanged;

        private void OnPropertyChanged(string propertyName = null)
        {
            PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
        }
    }
}