using System;
using UnityEngine;
using UnityEngine.UI;

namespace AlicizaX.UI
{
    /// <summary>
    /// Image 精灵图状态控制
    /// 控制 Image 组件的 Sprite
    /// </summary>
    [Serializable]
    [ControlerStateName("Image/Sprite")]
    [ControlerStateAttachType(true)]
    public class ImageSpriteState : ControllerStateBase
    {
        [SerializeField] private Sprite _sprite;
        [HideInInspector] [SerializeField] private Sprite _defaultSprite;

        public override void Init(UXControllerStateRecorder recorder)
        {
            if (recorder != null && recorder.TryGetComponent<Image>(out var image))
            {
                _defaultSprite = image.sprite;
            }
        }

        public override void Execute(UXControllerStateRecorder recorder, int entryIndex, int selectionIndex)
        {
            if (recorder != null && recorder.TryGetComponent<Image>(out var image))
            {
                image.sprite = (entryIndex == selectionIndex) ? _sprite : _defaultSprite;
            }
        }

        public override bool Valid(UXControllerStateRecorder recorder)
        {
            return recorder != null && recorder.GetComponent<Image>() != null;
        }

        public override string GetDescription()
        {
            string matched = _sprite != null ? _sprite.name : "无";
            string defaultVal = _defaultSprite != null ? _defaultSprite.name : "无";
            return $"匹配时: {matched}, 默认: {defaultVal}";
        }
    }
}