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using System.Security;
using UnityEngine;
using UnityEngine.InputSystem;

public class FPSController : MonoBehaviour
{
    [Header("Movement Speed")]
    [SerializeField] private float walkSpeed = 3.0f;
    [SerializeField] private float runMultiplier = 2.0f;

    [Header("Look Sensitivity")]
    [SerializeField] private float mouseSensitivity = 2.0f;
    [SerializeField] private float upDownRange = 80.0f;

    private Rigidbody rb;
    private Camera mainCamera;
    private PlayerInputHandler inputHandler;
    private Vector3 currentMovement;
    private float verticalRotation;

    private void Awake()
    {
        rb = GetComponent<Rigidbody>();
        rb.constraints = RigidbodyConstraints.FreezeRotation;  // Prevents tipping over
        mainCamera = Camera.main;
        inputHandler = PlayerInputHandler.Instance;
    }

    private void Update()
    {
        Cursor.lockState = CursorLockMode.Locked;
        HandleRotation();
    }

    private void FixedUpdate()
    {
        HandleMovement();
       
    }


    void HandleMovement()
    {
        float speed = walkSpeed * (inputHandler.RunValue > 0 ? runMultiplier : 1f);

        Vector3 inputDirection = new Vector3(inputHandler.MoveInput.x, 0f, inputHandler.MoveInput.y);
        Vector3 worldDirection = transform.TransformDirection(inputDirection);
        worldDirection.Normalize();

        currentMovement = worldDirection * speed * Time.fixedDeltaTime;
        rb.MovePosition(rb.position + currentMovement);
    }

    void HandleRotation()
    {
        float mouseXRotation = inputHandler.LookInput.x * mouseSensitivity;
        Quaternion deltaRotation = Quaternion.Euler(0, mouseXRotation, 0);
        rb.MoveRotation(rb.rotation * deltaRotation);

        verticalRotation -= inputHandler.LookInput.y * mouseSensitivity;
        verticalRotation = Mathf.Clamp(verticalRotation, -upDownRange, upDownRange);
        mainCamera.transform.localRotation = Quaternion.Euler(verticalRotation, 0, 0);
    }
}