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

public class LightBulbEmissionUpdate : MonoBehaviour
{
    [SerializeField] private Renderer _lightRend;
    [SerializeField] private float _intensity;
    [SerializeField] private Color _emissionColorValue;
    //[SerializeField] private Color _newEmissionColourValue;
    public bool UpdateEmission = true;
    public bool IsFlickering;

    private Color _emissionColorValueDefault;
    private float _intensityDefault;

    //public bool EmissionIsOn;
    //private bool _updateEmission;

    Animator _lightAnimator;

    private void Awake()
    {
        _lightAnimator = GetComponent<Animator>();

        _emissionColorValue = _lightRend.material.GetColor("_EmissionColor");  
    }

    // Start is called before the first frame update
    void Start()
    {
        _emissionColorValueDefault = _emissionColorValue;
        _intensityDefault = _intensity;
        if (IsFlickering)
        {
            LightIsFlickering();
        }
        else
        {
            LightIsNotFlickering();
        }
    }

    // Update is called once per frame
    void Update()
    {
        if (UpdateEmission)
        {
            //_lightRend.material.SetVector("_EmissionColor", _emissionColorValue * _intensity);
            var NewIntensity = (_emissionColorValue.r + _emissionColorValue.g + _emissionColorValue.b) / _intensity;
            var factor = /*( Mathf.Round*/(3.274745f / NewIntensity)/*)*/;
            _emissionColorValue = new Color (_emissionColorValue.r * factor, _emissionColorValue.g * factor, _emissionColorValue.b * factor, _emissionColorValue.a);
            _lightRend.material.SetVector("_EmissionColor", _emissionColorValue);
        }
    }

    public void EmissionIsEnabled() 
    {
        _lightRend.material.EnableKeyword("_EMISSION");
    }

    public void EmissionIsDisabled()
    {
        _lightRend.material.DisableKeyword("_EMISSION");
    }

    public void ResetEmission() 
    {
        _emissionColorValue = _emissionColorValueDefault;
        _intensity = _intensityDefault;
    }

    void LightIsFlickering()
    {
        _lightAnimator.SetBool("IsFlickering", true);
    }

    void LightIsNotFlickering()
    {
        _lightAnimator.SetBool("IsFlickering", false);
        ResetEmission();
    }
}