using Godot;

namespace Babushka.scripts.CSharp.Common.Animation;

public partial class Duck : Node2D
{
    [Export] private CharacterBody2D _characterBody;
    [Export] private AudioPlayer2D _nakNakAudio;
    [Export] private AudioPlayer2D _wingFlapAudio;
    [Export] private Node2D _vesna;
    [Export] private float _runningSpeed = 3f;
    [Export] private float _slowSpeed = 0.5f;
    [Export] private float _minDistanceToVesna = 1000f;
    [Export] private Node2D _duckRight;
    [Export] private Node2D _duckLeft;

    private bool _vesnaInReach = false;
    private bool _penEntered = false;
    private int _numberOfFramesPerDirection = 1000;
    private int _currentFramesThisDirection = 0;
    private bool _duckLookingRight = true;
    private Vector2 _movementVector =  Vector2.Zero;
    

    public void PenEntered()
    {
        _nakNakAudio.PlayOneShot();
        _penEntered = true;
    }

    public override void _Draw()
    {
        DrawLine(_characterBody.GlobalPosition, _movementVector, new Color(255, 0, 0), 2f, false);
    }

    public override void _Process(double delta)
    {
        if (_penEntered)
        {
            _characterBody.Velocity =  Vector2.Zero;
            _characterBody.MoveAndSlide();
            GD.Print("Pen entered.");
            return;
        }
        
        float currentDistance = _vesna.GlobalPosition.DistanceTo(_characterBody.GlobalPosition);
        
        if (currentDistance < _minDistanceToVesna)
        {
            _movementVector = new Vector2( _characterBody.GlobalPosition.X - _vesna.GlobalPosition.X, 
                                                    _characterBody.GlobalPosition.Y - _vesna.GlobalPosition.Y).Normalized();
            _movementVector *= _runningSpeed;
            _characterBody.Velocity = _movementVector;
            _characterBody.MoveAndSlide();
        }
        else
        {
            if (_currentFramesThisDirection >= _numberOfFramesPerDirection)
            {
                _currentFramesThisDirection = 0;
                FastNoiseLite fastNoiseLite = new FastNoiseLite();
                _movementVector = new Vector2(fastNoiseLite.GetNoise1D(_characterBody.GlobalPosition.X * Time.GetTicksMsec()), fastNoiseLite.GetNoise1D(_characterBody.GlobalPosition.Y * Time.GetTicksMsec())).Normalized();
            }

            _currentFramesThisDirection++;
            _characterBody.Velocity = _movementVector * _slowSpeed;
            _characterBody.MoveAndSlide();
        }
        
        // if läuftNachLinks && schautNachRechts || läuftNachRechts && schautNachLinks
        if ((_characterBody.Velocity.X < 0 && _duckLookingRight)
            || (_characterBody.Velocity.X > 0 && !_duckLookingRight))
        {
            if (_duckLookingRight)
            {
                _duckRight.Visible = false;
                _duckLeft.Visible = true;
                _duckLookingRight = false;
            }
            else
            {
                _duckRight.Visible = true;
                _duckLeft.Visible = false;
                _duckLookingRight = true;
            }
        }
    }
}