using KitsuneCafe.System;
using R3;
using UnityEngine;
using UnityEngine.UIElements;

namespace KitsuneCafe.UI
{
    [CreateAssetMenu(menuName = KitsuneCafeMenu.UiEffect + "Fade")]
    public class TransitionEffect : BaseUIEffect
    {
        [SerializeField]
        private string propertyName;

        [SerializeField]
        private SerializableDuration duration;

        [SerializeField]
        private EasingMode easing;

        [SerializeField]
        private SerializableDuration delay;

        public override IUIEffect Instantiate()
        {
            return new TransitionEffectInstance(propertyName, duration, easing, delay);
        }
    }

    public readonly struct TransitionEffectInstance : IUIEffect
    {
        public readonly StylePropertyName PropertyName;
        public readonly TimeValue Duration;
        public readonly EasingFunction Easing;
        public readonly TimeValue Delay;

        public TransitionEffectInstance(StylePropertyName name, TimeValue duration, EasingFunction easing, TimeValue delay)
        {
            PropertyName = name;
            Duration = duration;
            Easing = easing;
            Delay = delay;
        }

        public Observable<R3.Unit> Execute(VisualElement target)
        {
            return Observable.Empty<R3.Unit>();
        }
    }
}