using System;
using System.Collections.Generic;
using System.Runtime.CompilerServices;
using UnityEngine.UIElements;

namespace DanieleMarotta.RiversongCodeShowcase
{
    public class UIModel : IUIModel
    {
        public event EventHandler<BindablePropertyChangedEventArgs> propertyChanged;

        public event Action Changed;

        protected void SetProperty<T>(ref T field, T value, [CallerMemberName] string property = null)
        {
            if (EqualityComparer<T>.Default.Equals(field, value)) return;

            field = value;

            NotifyPropertyChanged(property);
        }

        protected void NotifyPropertyChanged(string property = null)
        {
            propertyChanged?.Invoke(this, new BindablePropertyChangedEventArgs(property));
        }

        public void NotifyChanged()
        {
            Changed?.Invoke();
        }
    }
}