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

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;
    private GameManager _gameManager;
    public bool IsPlayerOne = false;
    public bool IsPlayerTwo = false;

    // Start is called before the first frame update
    void Start()
    {
        _audioSource = GetComponent<AudioSource>();


        _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!");
        }
        _gameManager = GameObject.Find("Game_Manager").GetComponent<GameManager>();
        if (_gameManager == null)
        {
            Debug.LogError("Game Manager Is null!");
        }
        if (_gameManager._isCoOpMode == false)
        {
            transform.position = new Vector3(0, 0, 0);
        }
        if (_audioSource == null)
        {
            Debug.LogError("Audio Source is null");
        }
        else
        {
            _audioSource.clip = _laserShot;
        }
    }

    // Update is called once per frame
    void Update()
    {
        if (IsPlayerOne == true)
        {
            CalculateMovement();
            if ((Input.GetKeyDown(KeyCode.Space) && Time.time > _canFire) && IsPlayerOne == true)
            {
                Shoot();
            }
        }
        else
        {
            CalculateMovementP2();
            if ((Input.GetKeyDown(KeyCode.RightShift) && Time.time > _canFire))
                {
                ShootP2();

            }
        }

    void CalculateMovement()
        {
            if (IsPlayerOne == true)
            {
            //variables
            float horizontalInput = Input.GetAxis("Player1 Horizontal");
            float verticalInput = Input.GetAxis("Player1 Vertical");

                //float xpos = transform.position.x ;
/*
                if (horizontalInput != 0)
                {
                    transform.Translate(Vector3.right * horizontalInput * _speed * Time.deltaTime);
                }
                if (horizontalInput != 0)
                {
                    transform.Translate(Vector3.up * verticalInput * _speed * Time.deltaTime);
                }
                */

                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 CalculateMovementP2()
        {
            if (IsPlayerTwo == true)
            {
                float horizontalInput2 = Input.GetAxis("Player2 Horizontal");
                float verticalInput2 = Input.GetAxis("Player2 Vertical");

               /* if (horizontalInput2 != 0)
                {
                    transform.Translate(Vector3.right * horizontalInput2 * _speed * Time.deltaTime);
                }
                else
                {
                    Debug.LogError("HORIZONTAL INPUT IS NULL!");
                }
                if (verticalInput2 != 0)
                {
                    transform.Translate(Vector3.up * verticalInput2 * _speed * Time.deltaTime);
                }
                else
                {
                    Debug.LogError("VERTICAL INOUT IS NULL!");
                }

                if (Input.GetButtonDown("Player2 Horizontal"))
                {
                     transform.Translate(Vector3.right * horizontalInput2 * _speed * Time.deltaTime);
                }
             if (Input.GetButtonDown("Player2 Vertical"))
                {
                    transform.Translate(Vector3.up * verticalInput2 * _speed * Time.deltaTime);
                }
                */
               Vector3 direction = new Vector3(horizontalInput2, verticalInput2, 0);

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

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

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

        void ShootP2()
        {
        if (Input.GetKeyDown(KeyCode.RightShift) && _isTripleShotActive == true)
        {
            Instantiate(_tripleShotPrefab, transform.position, Quaternion.identity);
                _audioSource.Play();
            }
        else if (Input.GetKeyDown(KeyCode.RightShift) && _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;
        }
        if (_lives >= 1)
        {
            _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);
    }
    }