using UnityEngine;
using Utils;

public class InteractiveLayerHandler : MonoBehaviour
{
    [SerializeField] private Collider2D frontCollider;
    [SerializeField] private Collider2D backCollider;

    private SpriteRenderer spriteRenderer;

    private void Awake()
    {
        spriteRenderer = GetComponent<SpriteRenderer>();
    }

    private void OnTriggerEnter2D(Collider2D other)
    {
        if (other.gameObject.CompareTag("Player"))
        {
            if (frontCollider.IsTouching(other))
                // Player is in front of the tree
            {
                spriteRenderer.sortingOrder = AppConfig.PLAYER_LAYER + 1;

                // tODO: maybe slowly fad to 0.7f over time
                spriteRenderer.color = new Color(1, 1, 1, 0.7f);

                // fade to 0.7f over time
                // spriteRenderer.color = new Color(1, 1, 1, Mathf.Lerp(1f, 0.7f, Time.deltaTime));
            }
            else if (backCollider.IsTouching(other))
            {
                // Player is behind the tree
                spriteRenderer.sortingOrder = AppConfig.PLAYER_LAYER - 1;
                // change opacity of sprite to see through
                spriteRenderer.color = new Color(1, 1, 1, 1f);
            }
        }
    }

    private void OnTriggerExit2D(Collider2D other)
    {
        if (other.gameObject.CompareTag("Player"))
            // Reset the tree's layer when the player is no longer overlapping
            spriteRenderer.sortingOrder = AppConfig.PLAYER_LAYER;

        spriteRenderer.color = new Color(1, 1, 1, 1f);
    }
}