using UnityEngine;

[ExecuteInEditMode]
public class OutlineManager : MonoBehaviour
{

    private static OutlineManager _instance;

    public static OutlineManager instance
    {
        get
        {
            return _instance;
        }
    }

    public bool m_EnableOutline = true;

    public float m_SampleDistance = 0.01f;

    public Color m_OutlineColor = Color.white;

    public Color m_OutlineColorEnemy = Color.red;
    
    public Color m_OutlineColorNeutral = Color.yellow;

    public Camera targetCamera;

    public float scaleProgress = 1f;
    
    public Material mat1;
    public Material mat1_1;
    public Material mat1_2;
    public Material mat2;
    public Material mat3;
    
    public int layerTeamSelf = 16;
    public int layerTeamEnemy = 17;
    public int layerTeamNeutral = 18;
    
    public int troopIdSelf = 0;
    public int troopIdEnemy = 1;
    public int troopIdNeutral = 2;
    
    // Start is called before the first frame update
    void OnEnable()
    {
        _instance = this;
    }
    
    private int _GetLayerByTroopId(int troopId)
    {
        if (troopId == troopIdSelf)
        {
            return layerTeamSelf;
        }
        else if (troopId == troopIdEnemy)
        {
            return layerTeamEnemy;
        }
        else if (troopId == troopIdNeutral)
        {
            return layerTeamNeutral;
        }
        return 0;
    }

    public void AutoAddFromObj(GameObject obj, int troopId)
    {
        _SetLayer(obj, _GetLayerByTroopId(troopId));
    }
    
    private void _SetLayer(GameObject obj, int layer)
    {
        if (obj == null) return;
        obj.layer = layer;
        for (int i = 0; i < obj.transform.childCount; i++)
        {
            _SetLayer(obj.transform.GetChild(i).gameObject, layer);
        }
    }

    public void RemoveRenderer(Renderer r)
    {
        r.gameObject.layer = 0;
    }

    public void AddRenderer(Renderer r, int troopId)
    {
        r.gameObject.layer = _GetLayerByTroopId(troopId);
    }

    private void OnDestroy()
    {
        
        Destroy(_instance.mat1);
        Destroy(_instance.mat1_1);
        Destroy(_instance.mat2);
        Destroy(_instance.mat3);
        
        _instance = null;
    }
}