using System.Collections;
using System.Collections.Generic;
using UnityEngine;

namespace BF {
    public class SafeAreaManager {
        // public const string NOTCH_SCREEN_SIMULATE = "NOTCH_SCREEN_SIMULATE";

        private static SafeAreaManager instance;
        public static SafeAreaManager Instance {
            get {
                    if (instance == null) {
                        instance = new SafeAreaManager();
                }
                return instance;
            }
        }

        /// <summary>
        /// 是否开启模拟模式
        /// </summary>
        /// <returns></returns>
        // public static bool CheckIfSimulate () {
        //     return PlayerPrefs.GetInt ("NOTCH_SCREEN_SIMULATE", 0) == 1;
        // }

        /// <summary>
        /// 得到安全区域
        /// </summary>
        /// <returns></returns>
        public static Rect GetSafeArea () {
            // 当前屏幕尺寸
            float screenWidth = Screen.width;
            float screenHeight = Screen.height;
#if UNITY_EDITOR
            return Screen.safeArea;
#elif UNITY_IPHONE
            return Screen.safeArea;
#elif UNITY_ANDROID
            // 安卓直接用SDK方法 不使用SafeArea
            return new Rect (0, 0, screenWidth, screenHeight);
#else
            return new Rect (0, 0, screenWidth, screenHeight);
#endif
        }

        /// <summary>
        /// 得到竖屏时的刘海高度
        /// </summary>
        /// <returns></returns>
        public static float GetNotchScreenHeight() {
            Rect rect = GetSafeArea ();
#if UNITY_EDITOR
            return Screen.height - rect.height - rect.y;
#elif UNITY_ANDROID
            float height = Screen.height - rect.height - rect.y;
            if (height > 0)
            {
                return height;
            }
            else
            {
                return BFMain.Instance.SDKMgr.GetNotchScreenHeight();
            }
#else
            return Screen.height - rect.height - rect.y;
#endif
        }
    }
}