using Unity.VisualScripting;
using UnityEngine;
using Cinemachine;

[UnitCategory("Custom")]
public class RotateVirtualCameraNode : Unit
{
    [DoNotSerialize]
    public ControlInput enter { get; private set; }

    [DoNotSerialize]
    public ControlOutput exit { get; private set; }

    [DoNotSerialize]
    public ValueInput sensitivityInput { get; private set; }

    [DoNotSerialize]
    public ValueInput minRotationInput { get; private set; } // Minimum rotation limit

    [DoNotSerialize]
    public ValueInput maxRotationInput { get; private set; } // Maximum rotation limit

    private float rotationX = 0f; // Track the rotation around the X axis

    protected override void Definition()
    {
        enter = ControlInput("enter", (flow) =>
        {
            // Get the current game object (target object)
            var targetObject = flow.stack.gameObject;

            // Get the Virtual Camera from the child object
            var vcam = targetObject.transform.GetChild(0).GetComponent<CinemachineVirtualCamera>();

            // Get sensitivity
            float sensitivity = flow.GetValue<float>(sensitivityInput);

            // Get rotation limits
            float minRotation = flow.GetValue<float>(minRotationInput);
            float maxRotation = flow.GetValue<float>(maxRotationInput);

            // Get input (mouse or touch)
            float inputX, inputY;
            if (Input.touchSupported && Input.touchCount > 0)
            {
                Touch touch = Input.GetTouch(0);
                inputX = touch.deltaPosition.x;
                inputY = touch.deltaPosition.y;
            }
            else
            {
                inputX = Input.GetAxis("Mouse X");
                inputY = Input.GetAxis("Mouse Y");
            }

            // Rotate around the Y axis
            vcam.transform.RotateAround(targetObject.transform.position, Vector3.up, inputX * sensitivity);

            // Calculate the desired rotation around the X axis
            float desiredRotationX = rotationX - inputY * sensitivity;
            desiredRotationX = Mathf.Clamp(desiredRotationX, minRotation, maxRotation); // Limit the rotation to the specified range

            // Calculate the actual rotation difference
            float rotationDifferenceX = desiredRotationX - rotationX;

            // Apply the rotation around the X axis
            vcam.transform.RotateAround(targetObject.transform.position, vcam.transform.right, rotationDifferenceX);

            // Update the tracked rotation
            rotationX = desiredRotationX;

            return exit; // Continue execution
        });

        exit = ControlOutput("exit");

        sensitivityInput = ValueInput<float>("sensitivity", 2f); // Default sensitivity
        minRotationInput = ValueInput<float>("minRotation", -45f); // Default minimum rotation
        maxRotationInput = ValueInput<float>("maxRotation", 45f); // Default maximum rotation
    }
}