using Godot;
using Rokojori;

namespace GameJam
{  
  [Tool]
  [GlobalClass]
  public partial class PlayerCamera:RJVirtualCamera3D
  {
    [Export]
    public Node3D player;

    [Export]
    public RJSensor yawLeft;
    [Export]
    public RJSensor yawRight;

    [Export]
    public float yawSpeed;

    [Export]
    public float yawSmoothing = 0.1f;
    [Export]
    public float yaw;
    

    [Export]
    public float pitchSpeed;

    [Export]
    public float pitchSmoothing = 0.1f;

    [Export]
    public RJSensor pitchUp;
    [Export]
    public RJSensor pitchDown;

    [Export]
    public float minPitch;

    [Export]
    public float maxPitch;


    [Export]
    public float pitch;
    

    [Export]
    public float distance = 5;

    [Export]
    public Vector3 cameraOffset;

    float smoothYaw = 0;
    float smoothPitch = 0;

    [Export]
    public float positionSmoothing = 0.1f;

    [Export]
    public Vector3 position = new Vector3(0,0,0);

    public float DeadZone( float value, float treshold )
    {
      return Mathf.Max( 0, ( value - treshold ) ) / ( 1 - treshold );
    }

    public float DeadZone( float value )
    {
      return DeadZone( value, 0.4f );
    }

    public override void _Process( double delta )
    {
      var yawValue =    DeadZone( yawLeft.GetValue() ) -  DeadZone( yawRight.GetValue() );
      var pitchValue =  DeadZone( pitchUp.GetValue() ) -  DeadZone( pitchDown.GetValue() );
     

      yaw += yawSpeed * yawValue;
      pitch += pitchSpeed * pitchValue;
      pitch = Mathf.Clamp( pitch, minPitch, maxPitch );

      smoothYaw += yawSmoothing * ( yaw - smoothYaw ); 
      smoothPitch += pitchSmoothing * ( pitch - smoothPitch ); 

      GlobalRotation = new Vector3( Mathf.DegToRad( smoothPitch ), Mathf.DegToRad( smoothYaw ), 0 );

      var offset = GlobalBasis.Z * distance;
      position = position.Lerp( player.GlobalPosition, positionSmoothing );

      GlobalPosition = position + offset + cameraOffset;
    }

    [Export] 
    public float fov = 60;

    public override Vector3 GetCameraPosition()
    {
      return GlobalPosition;
    }

    public override Quaternion GetCameraRotation()
    {
      return GlobalBasis.GetRotationQuaternion();
    }

    public override float GetCameraFOV()
    {
      return fov;
    }
  }
}