using UnityEngine;

public abstract class Character : MonoBehaviour
{
    [SerializeField]
    protected Animator _animator;
    [SerializeField]
    private float MovementSpeed = 1.5f;
    [SerializeField]
    protected GameObject _bonesSide;
    [SerializeField]
    protected GameObject _bonesBack;

    [SerializeField]
    private LayerMask _mapLayer;



    private Rigidbody2D _body;
    //private BoxCollider2D _boxCollider;
    private CapsuleCollider2D _boxCollider;
    protected bool _isOnBridge;
    protected bool _isOnLadder;
    protected bool _isFalling;
    protected bool _facingRight = true;


    protected bool isAllowVertical = true;
    protected bool isAllowRight = true;
    protected bool isAllowLeft = true;
    float v_movement = 0;
    private void Start()
    {
        _body = GetComponent<Rigidbody2D>();
        _boxCollider = GetComponent<CapsuleCollider2D>();
    }

    protected void MoveTo(float inputHorizontal, float inputVertical)
    {
        var mapElement = GetMapElement(Vector2.down);

        _isOnBridge = mapElement == MapElementType.Bridge && !_isFalling;

       
        if (mapElement == MapElementType.Wall || _isOnLadder || _isOnBridge || mapElement == MapElementType.BreakableWall)
        {
            var leftCheck = GetMapElement(Vector2.left);
            var rightCheck = GetMapElement(Vector2.right);
            if (leftCheck == MapElementType.Wall || leftCheck == MapElementType.BreakableWall)
            {
                isAllowLeft = false;
            }
            else
            {
                isAllowLeft = true;
            }
            if (rightCheck == MapElementType.Wall || rightCheck== MapElementType.BreakableWall)
            {
                isAllowRight = false;
            }
            else
            {
                isAllowRight = true;
            }

            isAllowVertical = false;
            _isFalling = false;
            float h_movement = inputHorizontal;
            if (h_movement > 0 && !_facingRight)
            {
                FlipCharacter();
            }
            if (h_movement < 0 && _facingRight)
            {
                FlipCharacter();
            }

            SetWalkingAnimation(h_movement != 0);

            var upperElement = GetMapElement(Vector2.up);
            _isOnLadder = mapElement == MapElementType.Ladder || upperElement == MapElementType.Ladder;
            if (_isOnLadder)
            {

                isAllowVertical = true;
                _isOnLadder = true;
                v_movement = inputVertical;
                if (v_movement > 0)
                {
                    
                    if (upperElement != MapElementType.Ladder)
                    {
                        v_movement = 0;
                    }
                }
                SetClimbingAnimation(v_movement != 0);
            }
            _body.velocity = new Vector2(h_movement * MovementSpeed, v_movement * MovementSpeed);
        }
        else
        {
            _isFalling = true;
        }
    }

    private MapElementType GetMapElement(Vector2 direction)
    {
        var raycastHit = Physics2D.BoxCast(_boxCollider.bounds.center, _boxCollider.bounds.size, 0f, direction, 0.2f, _mapLayer);
        if (raycastHit)
        {
            var mapElement = raycastHit.transform.GetComponent<MapElement>();
            if (mapElement == null)
            {
                return MapElementType.Empty;
            }
            return mapElement.ElementSO.ElementType;
        }
        return MapElementType.Empty;
    }

    protected abstract void SetWalkingAnimation(bool isWalking);
    protected abstract void SetClimbingAnimation(bool isClimbing);

    private void FixedUpdate()
    {
        if (_isOnLadder || _isOnBridge)
        {
            _body.gravityScale = 0;
        }
        else
        {
            _body.gravityScale = 1;
        }
        if (_isFalling)
        {
            _body.velocity = new Vector2(0, _body.velocity.y);
            SetWalkingAnimation(false);

            if (GetMapElement(Vector2.down) == MapElementType.Ladder)
            {
                _body.velocity = Vector2.zero;
                _isOnLadder = true;
            }
        }
    }

    private void FlipCharacter()
    {
        Vector3 currentScale = gameObject.transform.localScale;
        currentScale.x *= -1;
        gameObject.transform.localScale = currentScale;

        _facingRight = !_facingRight;
    }


}