using System.Collections;
using AibisDream.Kit;
using DG.Tweening;
using UnityEngine;
using UnityEngine.UI;

namespace AibisDream
{
    public class MainUIController : Singleton<MainUIController>
    {
        private const string TVScene = "TV Scene";
        private const string BlackImage = "Fade Image";
        private const string NewsImage = "News";
        private const string ObjPanel = "Show Obj";

        #region ShowObj参数

        [Header("Obj尺寸参数")] 
        public float objWidth;
        public float objHeight;

        #endregion
        
        #region 主场景图片

        [SerializeField]private GameObject mainUIPanel;

        private FadeImage _tvScene;
        private FadeImage _blackImage;
        private FadeImage _news;
        private GameObject _objPanel;
        private Image _objImage;
        private Image _fullScreen;

        #endregion

        public override void OnSingletonInit()
        {
            InitChildObj();
        }

        #region 基本淡入淡出

        public void FadeIn(float duration)
        {
            _blackImage.FadeIn(duration);
        }

        public IEnumerator FadeInSync(float duration)
        {
            return _blackImage.FadeInSync(duration);
        }
        
        public void FadeOut(float duration)
        {
            _blackImage.FadeOut(duration);
        }

        public IEnumerator FadeOutSync(float duration)
        {
            return _blackImage.FadeOutSync(duration);
        }

        #endregion

        #region TV场景淡入淡出

        public void TVFadeIn(float duration)
        {
            _tvScene.FadeIn(duration);
            _news.FadeIn(duration);
        }

        public IEnumerator TVFadeInSync(float duration)
        {
            _news.FadeIn(duration);
            return _tvScene.FadeInSync(duration);
        }
        
        public void TVFadeOut(float duration)
        {
            _tvScene.FadeOut(duration);
            _news.FadeOut(duration);
        }

        public IEnumerator TVFadeOutSync(float duration)
        {
            _news.FadeOut(duration);
            return _tvScene.FadeOutSync(duration);
        }

        public void SwitchTV(string newsName)
        {
            _news.SwitchImage($"Art/Background/{newsName}");
        }

        #endregion
        
        /// <summary>
        /// 隐藏整个UI
        /// </summary>
        public void HideMainUI()
        {
            mainUIPanel.SetActive(false);
        }
        public void ShowMainUI()
        {
            mainUIPanel.SetActive(true);
        }

        /// <summary>
        /// 显示物体
        /// </summary>
        /// <returns>协程</returns>
        public IEnumerator ShowObj(string picName)
        {
            _objPanel.gameObject.SetActive(true);
            
            // 切换图片
            var newSprite = Resources.Load<Sprite>($"Art/Obj/{picName}");
            // 获取图片的长宽比
            var imageAspect = (float)newSprite.texture.width / newSprite.texture.height;

            // 计算新的尺寸
            if (imageAspect > 1) // 宽图
            {
                var newHeight = objWidth / imageAspect;
                _objImage.rectTransform.sizeDelta = new Vector2(objWidth, newHeight);
            }
            else // 高图
            {
                var newWidth = objHeight * imageAspect;
                _objImage.rectTransform.sizeDelta = new Vector2(newWidth, objHeight);
            }

            // 淡入
            _objImage.sprite = newSprite;
            _objImage.gameObject.SetActive(true);
            yield return _objImage.DOBlendableColor(Color.white, 1).WaitForCompletion();
        }

        public IEnumerator ShowFullScreen(string picName)
        {
            _fullScreen.sprite = Resources.Load<Sprite>($"Art/Obj/{picName}");
            
            // 淡入
            _fullScreen.gameObject.SetActive(true);
            yield return _objImage.DOBlendableColor(Color.white, 1).WaitForCompletion();
        }

        public IEnumerator HideFullScreen()
        {
            _fullScreen.gameObject.SetActive(true);
            yield return _objImage.DOBlendableColor(Color.clear, 1).WaitForCompletion();
            _fullScreen.gameObject.SetActive(false);
        }
        
        /// <summary>
        /// 隐藏物体
        /// </summary>
        /// <returns>协程</returns>
        public IEnumerator HideObj()
        {
            _objImage.gameObject.SetActive(true);
            yield return _objImage.DOBlendableColor(Color.clear, 1).WaitForCompletion();
            _objImage.gameObject.SetActive(false);
            _objPanel.SetActive(false);
        }

        private void InitChildObj()
        {
            var rawTvScene = transform.GetChild(0).Find(TVScene).gameObject.GetComponent<Image>();
            _tvScene = new FadeImage(rawTvScene);
            
            var rawBlackImage = transform.GetChild(0).Find(BlackImage).gameObject.GetComponent<Image>();
            _blackImage = new FadeImage(rawBlackImage);

            var rawNews = transform.GetChild(0).Find(NewsImage).gameObject.GetComponent<Image>();
            _news = new FadeImage(rawNews);

            _objPanel = transform.GetChild(0).Find(ObjPanel).gameObject;
            _objImage = _objPanel.transform.GetChild(0).GetComponent<Image>();

            _fullScreen = transform.GetChild(0).Find("Full Screen Image").GetComponent<Image>();
        }
    }
}