using UnityEngine;

[ExecuteAlways]
public class AdjustableGlowOrb : MonoBehaviour
{
    [SerializeField] private Color glowColor = new Color(0.1f, 0.65f, 1f, 1f);
    [SerializeField, Min(0f)] private float emissionIntensity = 2.5f;
    [SerializeField] private Renderer targetRenderer;

    private MaterialPropertyBlock propertyBlock;

    private void OnEnable()
    {
        ApplyVisuals();
    }

    private void OnValidate()
    {
        ApplyVisuals();
    }

    public void SetGlowColor(Color color)
    {
        glowColor = color;
        ApplyVisuals();
    }

    public Color GetGlowColor() => glowColor;

    private void ApplyVisuals()
    {
        if (targetRenderer == null)
        {
            targetRenderer = GetComponent<Renderer>();
        }

        if (targetRenderer == null)
        {
            return;
        }

        propertyBlock ??= new MaterialPropertyBlock();
        targetRenderer.GetPropertyBlock(propertyBlock);

        Color emission = glowColor * emissionIntensity;
        propertyBlock.SetColor("_BaseColor", glowColor);
        propertyBlock.SetColor("_Color", glowColor);
        propertyBlock.SetColor("_EmissionColor", emission);
        targetRenderer.SetPropertyBlock(propertyBlock);
    }
}