using System.Collections;
using System.Collections.Generic;
using System.Runtime.CompilerServices;
using Unity.VisualScripting;
using UnityEngine;

[RequireComponent(typeof(Collider))]
public class PlayerInteractionHandler : MonoBehaviour
{
    private List<InteractableItem> itemsInRange= new List<InteractableItem>();
    private List<HeavyInteractableItem> heavyItemsInRange = new List<HeavyInteractableItem>();
    private Inventory invent;
    [SerializeField]
    private Light flashlight;
    [SerializeField]
    private GameObject flashlight3D;
    [SerializeField]
    private int materialIndex = 1;
    private Material selMaterial;
    private Color initColor;

    private HeavyInteractableItem heavyInvent;
    public bool IsCarrying { get { return heavyInvent !=null; } }
    [SerializeField]
    private Transform carryingPos;

    // Start is called before the first frame update
    void Start()
    {
        invent = this.transform.parent.GetComponent<Inventory>();
        initColor = flashlight3D.GetComponent<MeshRenderer>().materials[materialIndex].GetColor("_BaseColor");
        selMaterial = flashlight3D.GetComponent<MeshRenderer>().materials[materialIndex];

    }

    // Update is called once per frame
    void Update()
    {
        //
        if(Input.GetButtonDown("Fire1"))
        {
            if(itemsInRange.Count > 0)
            {
                invent.AddItem(itemsInRange[0]);
                itemsInRange[0].transform.gameObject.SetActive(false);
                itemsInRange.Remove(itemsInRange[0]);
            }
            else if(heavyItemsInRange.Count > 0)
            {

                heavyInvent= heavyItemsInRange[0];
                
                heavyInvent.transform.parent = carryingPos;
                heavyInvent.transform.localPosition = Vector3.zero;
                heavyInvent.GetComponent<Rigidbody>().isKinematic = true;
                heavyItemsInRange.Remove(heavyItemsInRange[0]);
                heavyInvent.Disable();
                heavyInvent.DisableAll();


            }
        }
        if (Input.GetButtonDown("Fire2"))
        {
            flashlight.gameObject.SetActive(!flashlight.gameObject.activeSelf);
            if (flashlight.gameObject.activeSelf)
            {
                flashlight3D.GetComponent<MeshRenderer>().materials[materialIndex].SetColor("_BaseColor", initColor);
                selMaterial.SetColor("_EmissionColor", new Color(0, 0, 0, 0));
                flashlight3D.gameObject.SetActive(true);
            }
            else
            {
                flashlight3D.GetComponent<MeshRenderer>().materials[materialIndex].SetColor("_BaseColor", new Color(0, 0, 0));
                selMaterial.SetColor("_EmissionColor", new Color(0, 0, 0, 0));
                flashlight3D.gameObject.SetActive(false);
            }
        }
    }

    private void OnTriggerEnter(Collider other)
    {
        if(other.gameObject.GetComponent<InteractableItem>() != null)
        {
            InteractableItem item = other.gameObject.GetComponent<InteractableItem>();
            if(item is InteractableItem && item is not HeavyInteractableItem)
            {
                ((InteractableItem)item).Enable();
                itemsInRange.Add(item);
            }else if(item is HeavyInteractableItem)
            {
                ((HeavyInteractableItem)item).Enable();
                heavyItemsInRange.Add((HeavyInteractableItem)item);
            }

        }
    }
    private void OnTriggerExit(Collider other)
    {
        if (other.gameObject.GetComponent<InteractableItem>() != null)
        {
            InteractableItem item = other.gameObject.GetComponent<InteractableItem>();
            if (item is InteractableItem && item is not HeavyInteractableItem)
            {
                ((InteractableItem)item).Disable();
                itemsInRange.Remove(item);

            }
            else if (item is HeavyInteractableItem)
            {
                ((HeavyInteractableItem)item).Disable();
                //itemsInRange.Remove((HeavyInteractableItem)(item));
                heavyItemsInRange.Remove((HeavyInteractableItem)item);
            }
        }
    }
}