using UnityEngine;

[ExecuteAlways]
public class CameraAspectSetter : MonoBehaviour
{
    public float baseWidth = 1080f;
    public float baseHeight = 1920f;
    public float baseOrthoSize = 20.6f;

    private Camera cam;
    private float baseAspect;

    void Awake()
    {
        cam = GetComponent<Camera>();
        baseAspect = baseWidth / baseHeight;
        UpdateCamera();
    }

#if UNITY_EDITOR
    void Update()
    {
        if (Application.isPlaying)
            UpdateCamera();
    }
#endif

    void UpdateCamera()
    {
        if (cam == null || !cam.orthographic)
            return;

        float currentAspect = (float)Screen.width / Screen.height;
        float scale = currentAspect / baseAspect;

        // 기본 카메라 사이즈
        cam.orthographicSize = baseOrthoSize / scale;

        // Y 보정 (세로가 길수록 아래로 살짝 이동)
        float yOffset = 0f;
        if (scale < 1f)
        {
            // 세로가 길다 (ex. 1440x3088)
            yOffset = -(1f - scale) * 27.1f;
        }
        else if (scale > 1f)
        {
            // 세로가 짧다 (ex. 2048x2732 태블릿)
            yOffset = (scale - 1f) * (5f * 0.5f);
        }

        cam.transform.position = new Vector3(0, yOffset, cam.transform.position.z);
    }
}