using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using static UnityEngine.UI.Image;

public class PistolComponent : MonoBehaviour
{
    [SerializeField]
    private Light targetingLight;

    private bool IsEnabled = false;
    
    GameObject targetObject;
    
    [SerializeField]
    GameObject targetObjectPrefab;
    [SerializeField]
    private GameObject projectilePrefab;
    [SerializeField]
    private Transform bulletSpawnPoint;
    [SerializeField]
    private float firePower = 20f;
    [SerializeField]
    private float maxProjectileDuration = 5f;

    

    //private Dictionary<int,float> projectiles = new Dictionary<int, float>(); 

    // Start is called before the first frame update
    void Start()
    {
        
    }

    // Update is called once per frame
    void Update()
    {
        

    }
    private float CalculateDrop(Vector3 origin,Vector3 destination,Vector3 force)
    {
        // Calculate the initial velocity required to reach the destination.
        Vector3 displacement = destination - origin;
        float time = Mathf.Sqrt(2f * displacement.magnitude / Physics.gravity.magnitude);
        Vector3 velocity = (displacement - 0.5f * Physics.gravity * time * time) / time + force;

        // Calculate the height the object will reach during its flight.
        float maxHeight = origin.y + velocity.y * time - 0.5f * Physics.gravity.y * time * time;

        // Calculate the distance the object will drop during its flight.
        float dropDistance = maxHeight - destination.y;

        return dropDistance;
    }
    private void FixedUpdate()
    {
        if (this.IsEnabled)
        {
            Ray ray = new Ray(transform.position, transform.up);
            RaycastHit hit;
            if (Physics.Raycast(ray, out hit, 50))
            {
                targetObject.gameObject.transform.position = hit.point;
                float drop = CalculateDrop(this.bulletSpawnPoint.position, hit.point, this.transform.up * this.firePower);
                print(drop);
                
            }
        }
        
        


    }
    public void Fire()
    {
        GameObject projectile = Instantiate(projectilePrefab, this.bulletSpawnPoint);
        projectile.transform.localPosition = Vector3.zero;
        projectile.transform.localEulerAngles = Vector3.zero;
        projectile.transform.localScale = Vector3.one;
        Rigidbody pRigid = projectile.GetComponent<Rigidbody>();
        pRigid.AddForce(pRigid.transform.up*this.firePower, ForceMode.Impulse);
        projectile.transform.parent = null;
        
    }
    public void Enable()
    {
        IsEnabled = true;
        if (targetObject == null)
        {
            targetObject = Instantiate(targetObjectPrefab);
            
        }
    }
    public void Disable()
    {
        IsEnabled = false;
        if (targetObject != null)
        {
            Destroy(targetObject);
        }
    }

    public void LightToggle() {
        this.targetingLight.gameObject.SetActive(!this.targetingLight.gameObject.activeSelf);
    }
    public bool IsLightOn { get { return this.targetingLight.gameObject.activeSelf; } }
   
}