using SHADE;
using System;
using static PlayerController;

public class PickAndThrow : Script
{
  public Vector3 holdPosition = new Vector3(0.0f, 1.0f, 0.0f);
  public Vector3 throwForce = new Vector3(100.0f, 200.0f, 100.0f);
  public GameObject item;
  private PlayerController pc;
  private Camera cam;
  private Transform itemTransform;
  private RigidBody itemRidibody;
  private Transform raccoonHoldLocation;
  private float lastXDir;
  private float lastZDir;
  private bool inRange = false;
  public PickAndThrow(GameObject gameObj) : base(gameObj) { }

  protected override void awake()
  {
    pc = GetScript<PlayerController>();
    raccoonHoldLocation = GetComponentInChildren<Transform>();
    if (raccoonHoldLocation == null)
      Debug.Log("CHILD EMPTY");
    else
      raccoonHoldLocation.LocalPosition = holdPosition;
  }
  protected override void update()
  {
    if (cam == null)
      cam = GetComponentInChildren<Camera>();
    else if (cam != null)
    {
      Vector3 camerAixs = cam.GetForward();
      camerAixs.y = 0;
      camerAixs.Normalise();
      lastXDir = camerAixs.x;
      lastZDir = camerAixs.z;
    }

    RetrieveItemComponets();

    if (pc != null && inRange && !pc.holdItem && Input.GetMouseButtonDown(Input.MouseCode.LeftButton))
      pc.holdItem = true;

    if (pc != null && pc.holdItem && itemRidibody != null && itemTransform != null)
    {
      itemTransform.LocalPosition = raccoonHoldLocation.GlobalPosition;
      itemRidibody.IsGravityEnabled = false;
      itemRidibody.LinearVelocity = Vector3.Zero;
      itemRidibody.AngularVelocity = Vector3.Zero;

      if (Input.GetMouseButtonDown(Input.MouseCode.LeftButton))
      {
        pc.holdItem = false;
        inRange = false;
        itemRidibody.IsGravityEnabled = true;
        itemRidibody.AddForce(new Vector3(throwForce.x * lastXDir, throwForce.y, throwForce.z * lastZDir));
        itemRidibody.LinearVelocity += pc.rb.LinearVelocity;
      }
    }
    else if(!pc.holdItem && itemRidibody != null)
      itemRidibody.IsGravityEnabled = true;
  }

  private void ResetItemObject()
  {
    itemRidibody = null;
    itemTransform = null;
    item = new GameObject();
  }

  private void RetrieveItemComponets()
  {
    //get the transform of the given item
    if (item.GetScript<Item>() != null && itemTransform == null && itemRidibody == null)
    {
      itemTransform = item.GetComponent<Transform>();
      if (itemTransform == null)
        Debug.Log("Item transform EMPTY");

      itemRidibody = item.GetComponent<RigidBody>();
      if (itemRidibody == null)
        Debug.Log("Item rb EMPTY");
    }
  }


  protected override void onCollisionEnter(CollisionInfo info)
  {
  }
  protected override void onTriggerEnter(CollisionInfo info)
  {
    //Debug.Log("ENTER");
    if (info.GameObject.GetScript<Item>() != null && !pc.holdItem)
    {
      item = info.GameObject;
      inRange = true;
    }
  }
  protected override void onTriggerStay(CollisionInfo info)
  {
    //Debug.Log("STAY");
  }
  protected override void onTriggerExit(CollisionInfo info)
  {
    //Debug.Log("EXIT");
    if (info.GameObject.GetScript<Item>() != null && !pc.holdItem)
    {
      inRange = false;
    }
  }

}