using UnityEngine;
using UnityEngine.UI;

namespace AibisDream.FrameAnimation
{
    internal interface IFrameAnimationTarget
    {
        bool IsValid { get; }
        bool Enabled { get; set; }
        Sprite Sprite { get; set; }
    }

    internal sealed class SpriteRendererFrameAnimationTarget : IFrameAnimationTarget
    {
        private readonly SpriteRenderer target;

        public bool IsValid => target != null;
        public bool Enabled
        {
            get => target != null && target.enabled;
            set
            {
                if (target != null)
                {
                    target.enabled = value;
                }
            }
        }
        public Sprite Sprite
        {
            get => target != null ? target.sprite : null;
            set
            {
                if (target != null)
                {
                    target.sprite = value;
                }
            }
        }

        public SpriteRendererFrameAnimationTarget(SpriteRenderer target)
        {
            this.target = target;
        }
    }

    internal sealed class ImageFrameAnimationTarget : IFrameAnimationTarget
    {
        private readonly Image target;

        public bool IsValid => target != null;
        public bool Enabled
        {
            get => target != null && target.enabled;
            set
            {
                if (target != null)
                {
                    target.enabled = value;
                }
            }
        }
        public Sprite Sprite
        {
            get => target != null ? target.sprite : null;
            set
            {
                if (target != null)
                {
                    target.sprite = value;
                }
            }
        }

        public ImageFrameAnimationTarget(Image target)
        {
            this.target = target;
        }
    }
}