using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class Player : MonoBehaviour
{
    [SerializeField]
    private float _speed = 3.5f;
    private float _speedMultiplier = 2f;
    [SerializeField]
    private GameObject _laserPrefab;
    [SerializeField]
    private float _fireRate = 0.5f;
    private float _canFire = -1f;
    [SerializeField]
    private int _lives = 3;
    private SpawnManager _spawnManager;
    [SerializeField]
    private bool _isTripleShotActive = false;
    [SerializeField]
    private GameObject _tripleShotPrefab;
    private bool _stopSpawning = false;
    private bool _isSpeedBoostActive = false;
    private bool _isShieldActive = false;
    [SerializeField]
    private GameObject _shieldVisualizer;
    [SerializeField]
    private int _score;
    private UIManager _uiManager;
    [SerializeField]
    private GameObject _Left_Hurt;
    [SerializeField]
    private GameObject _Right_Hurt;
    [SerializeField]
    private AudioClip _laserShot;
    private AudioSource _audioSource;
    [SerializeField]
    private AudioClip _explosionSound;



    // Start is called before the first frame update
    void Start()
    {
        _audioSource = GetComponent<AudioSource>();
        transform.position = new Vector3(0, 0, 0);
        _spawnManager = GameObject.Find("Spawn_Manager").GetComponent<SpawnManager>();
        if (_spawnManager == null)
        {
            Debug.LogError("Spawn manager is NULL!");
        }
        _uiManager = GameObject.Find("Canvas").GetComponent<UIManager>();
        if (_uiManager == null)
        {
            Debug.LogError("UIMANAGER IS NULL!");
        }
        if (_audioSource == null)
        {
            Debug.LogError("Audio Source is null");
        }
        else
        {
            _audioSource.clip = _laserShot;
        }
    }

    // Update is called once per frame
    void Update()
    {
        CalculateMovement();
        if (Input.GetKeyDown(KeyCode.Space) && Time.time > _canFire)
        {
            Shoot();
        }
    }
    void CalculateMovement()
    {
        //variables
        float horizontalInput = Input.GetAxis("Horizontal");
        float verticalInput = Input.GetAxis("Vertical");
        //float xpos = transform.position.x ;



        Vector3 direction = new Vector3(horizontalInput, verticalInput, 0);

            transform.Translate(direction * _speed * Time.deltaTime);


        transform.position = new Vector3(transform.position.x, Mathf.Clamp(transform.position.y, -3.8f, 0), 0);

        if (transform.position.x > 11.16f)
        {
            transform.position = new Vector3(-11.16f, transform.position.y, 0);
        }
        else if (transform.position.x <= -11.16f)
            transform.position = new Vector3(11.16f, transform.position.y, 0);
    }

    void Shoot()
    {

        _canFire = Time.time + _fireRate;
        if (Input.GetKeyDown(KeyCode.Space) && _isTripleShotActive == true)
        {
            Instantiate(_tripleShotPrefab, transform.position, Quaternion.identity);

        }
        else if (Input.GetKeyDown(KeyCode.Space) && _isTripleShotActive == false)
        {
            Instantiate(_laserPrefab, this.transform.position + new Vector3(0, 1.05f, 0), Quaternion.identity);
        }
        _audioSource.Play();


    }
    public void Damage()
    {
        if (_isShieldActive == true)
        {
            _shieldVisualizer.SetActive(false);
            _isShieldActive = false;
            return;
        }
        _lives--;
        if (_lives == 2)
        {
            _Left_Hurt.SetActive(true);
        }
        else if (_lives == 1)
        {
            _Right_Hurt.SetActive(true);
        }
        _uiManager.UpdateLives(_lives);

        if (_lives <= 0)
        {

            _spawnManager.OnPlayerDeath();
            _audioSource.clip = _explosionSound;
            Destroy(this.gameObject, 0.5f);
            _audioSource.Play();
        }

    }
    public void TripleShotCollected()
    {
        _isTripleShotActive = true;
        StartCoroutine(TripleShotPowerDown());

        IEnumerator TripleShotPowerDown()
        {

            yield return new WaitForSeconds(5.0f);
            _isTripleShotActive = false;
        }


        }
    public void SpeedBoostCollected()
    {
        _isSpeedBoostActive = true;
        _speed *= _speedMultiplier;
        StartCoroutine(SpeedBoostCoolDown());

        IEnumerator SpeedBoostCoolDown()
        {
            yield return new WaitForSeconds(5.0f);
            _isSpeedBoostActive = false;
            _speed /= _speedMultiplier;
        }
    }
    public void isShieldActive()
    {
        _shieldVisualizer.SetActive(true);
        _isShieldActive = true;
    }

    public void score(int points)
    {
        _score += points;
        _uiManager.UpdateScore(_score);
    }
    }