// using System.Collections;
// using System.Collections.Generic;
// using UnityEngine;
//
// public class DeviceSafeArea : MonoBehaviour
// {
//     [SerializeField] private RectTransform Panel;
//     public Vector4 offsetFromDevice;
//     Rect LastSafeArea = new Rect(0, 0, 0, 0);
//
//     void Awake()
//     {
//         Panel ??= GetComponent<RectTransform>();
//         Refresh();
//     }
//
//     void Update()
//    

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

public class DeviceSafeArea : MonoBehaviour
{
    [SerializeField] private RectTransform Panel;
    public Vector4 offsetFromDevice = new Vector4(0, 47, 34, 0); // iphone 14 safe area offset
    public Vector4 lastOffsetFromDevice;
    [Space(5)] public Vector4 offsetFromDeviceLog;
    Rect LastSafeArea = new Rect(0, 0, 0, 0);

    void Awake()
    {
        Panel ??= GetComponent<RectTransform>();
        lastOffsetFromDevice = offsetFromDevice;
        Refresh();
    }

    void Update()
    {
        Refresh();
    }

    [ContextMenu("Refresh")]
    public void Refresh()
    {
        Rect safeArea = GetSafeArea();

        if (safeArea != LastSafeArea || (offsetFromDevice != lastOffsetFromDevice))
            ApplySafeArea(safeArea);
    }

    Rect GetSafeArea()
    {
        return Screen.safeArea;
    }

    void ApplySafeArea(Rect r)
    {
        LastSafeArea = r;

#if UNITY_EDITOR
        {
            lastOffsetFromDevice = offsetFromDevice;
            // Add manual offsets
            r.x += offsetFromDevice.w; // Left offset
            r.width -= offsetFromDevice.w + offsetFromDevice.x; // Right offset
            r.y += offsetFromDevice.z; // Bottom offset
            r.height -= offsetFromDevice.z + offsetFromDevice.y; // Top offset
        }
#endif

        // Convert safe area rectangle from absolute pixels to normalized anchor coordinates
        Vector2 anchorMin = r.position;
        Vector2 anchorMax = r.position + r.size;
        anchorMin.x /= Screen.width;
        anchorMin.y /= Screen.height;
        anchorMax.x /= Screen.width;
        anchorMax.y /= Screen.height;
        Panel.anchorMin = anchorMin;
        Panel.anchorMax = anchorMax;
        CalculateMargin(r);
    }

    void CalculateMargin(Rect safeAreas)
    {
        float screenWidth = Screen.width;
        float screenHeight = Screen.height;
        var safeArea = safeAreas;
        // Calculate the difference between safe area and screen size
        float leftMargin = safeArea.x;
        float rightMargin = screenWidth - (safeArea.x + safeArea.width);
        float topMargin = screenHeight - (safeArea.y + safeArea.height);
        float bottomMargin = safeArea.y;

        offsetFromDeviceLog.w = leftMargin;
        offsetFromDeviceLog.x = rightMargin;
        offsetFromDeviceLog.y = topMargin;
        offsetFromDeviceLog.z = bottomMargin;
    }
}