using System.Collections;
using System.Collections.Generic;
using Unity.Mathematics;
using UnityEngine;
using UnityEngine.UI;

public class SetLightStrength : MonoBehaviour
{

    public float GradientEnd = 0.5f;
    public float LightPositionY = 1.2f;

   public Color TopColor = new Color(1f, 1f, 1f, 1f);
   public Color BottomColor = new Color(0f, 0f, 0f, 0f);


    RawImage rawImage;
    Material material;
    // Start is called before the first frame update
    void Start()
    {
        rawImage = GetComponent<RawImage>();
        if (rawImage != null)
        {
            material = rawImage.material;
        }
        else
        {
            Debug.LogError("RawImage component not found on this GameObject.");
        }
    }

    // Update is called once per frame
    void Update()
    {

        if (material != null)
        {
            if (material != null)
            {
                material.SetFloat("_GradientEnd", GradientEnd);
                material.SetVector("_LightPosition", new float4(0.5f, LightPositionY, 0f, 0f));
                material.SetColor("_TopColor", TopColor);
                material.SetColor("_BottomColor", BottomColor);
            }
        }
        else
        {
            Debug.LogError("Material not assigned!");
            rawImage = GetComponent<RawImage>();
            if (rawImage != null)
            {
                material = rawImage.material;
            }
            else
            {
                Debug.LogError("RawImage component not found on this GameObject.");
            }
        }
    }

    public void setStrength(float strength)
    {


        if (material != null)
        {
            material.SetFloat("_Strength", strength);
            material.SetFloat("_AlphaCutoff", Mathf.Clamp01(strength));
        }
    }   
    
    public void onReceiveStrength(string strength)
    {
        Debug.Log("Received strength: " + strength);
        if (float.TryParse(strength, out float result))
        {
            // setStrength(Mathf.Lerp(material.GetFloat("_Strength"), result, Time.deltaTime * 5f));
            setStrength(result);
        }
    }
}