using System;
using UnityEngine;

public class PlayerController : Character
{
    [SerializeField]
    private Transform _hammerSpawnPoint;
    [SerializeField]
    private GameObject _hammerPrefab;

    [SerializeField]
    private Sprite _regularSprite;
    [SerializeField]
    private Sprite _noHammerSprite;

    public static Player Instance { get; private set; }

    private GameObject _hammer;

    private bool _isHoldingHammer = true;

    public event EventHandler<TreasureType> OnPlayerTakeItem;

    private InputManager _inputManager;
    private PlayerState _playerState;

    private void Awake()
    {
        if (Instance != null)
        {
            Destroy(gameObject);
            Debug.Log("There's more than one player instance");
            return;
        }
        Instance = this;
        DontDestroyOnLoad(gameObject);
        _inputManager = new InputManager();
        _playerState = GetComponent<PlayerState>();

        _inputManager.OnMovementInput += OnMovementInput;
        _inputManager.OnFireButtonPressed += OnFireButtonPressed;
    }

    private void OnEnable()
    {
        _inputManager.Enable();
    }

    private void OnDisable()
    {
        _inputManager.Disable();
    }

    private void Update()
    {
        if (_hammer == null && !_isHoldingHammer)
        {
            _spriteRenderer.sprite = _regularSprite;
            _isHoldingHammer = true;
        }

        var move = _inputManager.OnMovementInput.ReadValue<Vector2>();
        base.MoveTo(move.x, isAllowVertical ? move.y : 0);
    }

    private void OnFireButtonPressed()
    {
        if (_hammer == null)
        {
            _animator.SetTrigger("Body_ThrowHammer");
        }
    }

    public void ThrowHammerObject()
    {
        _isHoldingHammer = false;
        _spriteRenderer.sprite = _noHammerSprite;
        _hammer = Instantiate(_hammerPrefab, _hammerSpawnPoint.position, _hammerSpawnPoint.rotation);
        _hammer.transform.localScale = new Vector2(_hammer.transform.localScale.x * (_facingRight ? 1 : -1), _hammer.transform.localScale.y);
        _hammer.GetComponent<Rigidbody2D>().linearVelocity = new Vector2(gameObject.transform.localScale.x * _hammerSpeed, 0);
    }

    protected override void SetWalkingAnimation(bool isWalking)
    {
        _bonesBack.SetActive(false);
        _bonesSide.SetActive(true);
        _animator.SetBool("Legs_Walk", isWalking);
        _animator.SetBool("Body_Walk", isWalking);
    }

    protected override void SetClimbingAnimation(bool isClimbing)
    {
        if (isClimbing)
        {
            _bonesBack.SetActive(true);
            _bonesSide.SetActive(false);
        }
        _animator.SetBool("Climb", isClimbing);
    }

    protected void OnDeath()
    {
        _playerState.Lives--;

        if (_playerState.Lives == 0)
        {
            Debug.Log("Game over");
        }
    }
}