using System;
using Godot;

namespace Babushka.scripts.CSharp.Common.Animation;

public partial class Duck : Node2D
{
    [Export] private CharacterBody2D _characterBody;
    [Export] private AudioPlayer _nakNakAudio;
    [Export] private AudioPlayer _wingFlapAudio;
    [Export] private Node2D _vesna;
    [Export] private float _runningSpeed = 5f;
    [Export] private float _slowSpeed = 1f;
    [Export] private float _minDistanceToVesna = 1000f;

    private bool _vesnaInReach = false;
    private bool _penEntered = false;
    private Vector2 _lastDirection = Vector2.Up;
    private int _numberOfFramesPerDirection = 1000;
    private int _currentFramesThisDirection = 0;
    

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

    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)
        {
            _characterBody.Velocity = new Vector2( _characterBody.GlobalPosition.X - _vesna.GlobalPosition.X, 
                                                    _characterBody.GlobalPosition.Y - _vesna.GlobalPosition.Y).Normalized();
            _characterBody.Velocity *= _runningSpeed;
            _characterBody.MoveAndSlide();
            // todo: Add noise!
        }
        else
        {
            if (_currentFramesThisDirection >= _numberOfFramesPerDirection)
            {
                _currentFramesThisDirection = 0;
                Random random = new Random();
                _lastDirection = new Vector2(random.NextSingle(), random.NextSingle()).Normalized();
            }

            _currentFramesThisDirection++;
            _characterBody.Velocity = _lastDirection * _slowSpeed;
            _characterBody.MoveAndSlide();
        }
        
        /*
        if (_characterBody.Velocity.X < 0 && _characterBody.Scale.X > 0)
        {
            _characterBody.Scale =  new Vector2(_characterBody.Scale.X * (-1), _characterBody.Scale.Y);
        }
        */
        
        base._Process(delta);
    }
}