using Godot;

public partial class Player : CharacterBody3D
{
  [Export]
  private float _speed = 5.0f;
  [Export]
  private float _jumpVelocity = 4.5f;
  [Export]
  private float _sensitivityHorizontal = 0.05f;
  [Export]
  private float _sensitivityVertical = 0.05f;
  [Export]
  private float _joystickDeadZone = 0.5f;

  private Node3D _cameraMount;
  private Node3D _pivot;

  // Get the _gravity from the project settings to be synced with RigidBody nodes.
  public float _gravity = ProjectSettings.GetSetting("physics/3d/default_gravity").AsSingle();

  public override void _Ready()
  {
    Input.MouseMode = Input.MouseModeEnum.Captured;
    _cameraMount = GetNode<Node3D>("/root/Main/Player/CameraMount");
    _pivot = GetNode<Node3D>("/root/Main/Player/Pivot");
  }

  public override void _UnhandledInput(InputEvent @event)
  {
    if (Input.IsActionJustPressed("quit"))
      GetTree().Quit();
    if (Input.IsActionJustPressed("shoot"))
      Shoot();
  }

  public override void _Input(InputEvent @event)
  {
  }

  public override void _PhysicsProcess(double delta)
  {
    var gravityDelta = _gravity * (float)delta;
    var velocity = CalculateMovement(Velocity, Transform, gravityDelta);

    Velocity = velocity;
    MoveAndSlide();
  }

  private void Shoot()
  {
    GD.Print("Shoot");
    var projectile = new Fireball();
    Owner.AddChild(projectile);
    projectile.Transform = Transform;
  }

  private Vector3 CalculateMovement(Vector3 velocity, Transform3D transform, float gravityDelta)
  {
    if (!IsOnFloor())
      velocity.Y -= gravityDelta;

    if (Input.IsActionJustPressed("jump") && IsOnFloor())
      velocity.Y = _jumpVelocity;

    Vector2 inputDir = Input.GetVector("right", "left", "back", "forward");
    Vector3 direction = (transform.Basis * new Vector3(inputDir.X, 0, inputDir.Y)).Normalized();
    if (direction != Vector3.Zero)
    {
      velocity.X = direction.X * _speed;
      velocity.Z = direction.Z * _speed;
      GetNode<Node3D>("Pivot").LookAt(Position + direction.Normalized(), Vector3.Up);
    }
    else
    {
      velocity.X = Mathf.MoveToward(Velocity.X, 0, _speed);
      velocity.Z = Mathf.MoveToward(Velocity.Z, 0, _speed);
    }

    return velocity;
  }
}