using UnityEngine;

public class PlaerController : MonoBehaviour
{
    [SerializeField] private CharacterController characterController;
    [SerializeField] private Transform cameraTransform;
    [SerializeField] private Transform checkGroundTransform;
    [SerializeField] private LayerMask groundMask;

    [Header("Settings")]
    [SerializeField] private float checkRadiusSphere = 0.2f;
    [SerializeField] private float gravity = -10f;
    [SerializeField] private float speed = 4f;
    [SerializeField] private float speedRun = 7f;
    [SerializeField] private float jumpHeight = 1f;
    [SerializeField] public float stamina = 100f;
    [SerializeField] private float staminaMinus = 15f;
    [SerializeField] private float staminaPlus = 15f;
    [SerializeField] private float timeToRegen = 1f;

    [Range(1f, 2000f)]
    [SerializeField] private float sensetivity = 200f;

    private HUD hud;
    private float timerToRegen = 5f;
    private float rotationX;
    private bool isGround;
    private Vector3 velocity;
    private Vector3 move;

    private void Awake()
    {
        hud = GameObject.FindGameObjectWithTag("Canvas").GetComponent<HUD>();
    }

    void Start()
    {
        Cursor.lockState = CursorLockMode.Locked;
        Cursor.visible = false;
        Debug.Log($"PlaerController: Начальная сенса = {sensetivity}");
    }

    void Update()
    {
        Velocity();
        Move();
        Rotate();
    }

    private void Rotate()
    {
        float mouseX = Input.GetAxis("Mouse X") * sensetivity * Time.deltaTime;
        float mouseY = Input.GetAxis("Mouse Y") * sensetivity * Time.deltaTime;

        rotationX -= mouseY;
        rotationX = Mathf.Clamp(rotationX, -90f, 90f);

        cameraTransform.localRotation = Quaternion.Euler(rotationX, 0, 0);
        transform.Rotate(0, mouseX, 0);
    }

    public float GetStamina()
    {
        return stamina;
    }
    
    private void Move()
    {
        float moveX = Input.GetAxis("Horizontal");
        float moveY = Input.GetAxis("Vertical");

        move = transform.forward * moveY + transform.right * moveX;

        if (Input.GetKey(KeyCode.LeftShift) && (moveX != 0 || moveY != 0) && stamina > 0)
        {
            characterController.Move(move * speedRun * Time.deltaTime);
            stamina -= staminaMinus * Time.deltaTime;
            hud.staminaBar.fillAmount = stamina / 100;
            stamina = Mathf.Clamp(stamina, 0, 100);
            timerToRegen = 0f;
        }
        else
        {
            characterController.Move(move * speed * Time.deltaTime);

            if (timerToRegen < timeToRegen)
            {
                timerToRegen += Time.deltaTime;
            }
            else if (timerToRegen >= timeToRegen && stamina < 100f)
            {
                Regeneration();
            }
        }
    }

    private void Regeneration()
    {
        stamina += staminaPlus * Time.deltaTime;
        hud.staminaBar.fillAmount = stamina / 100;
        stamina = Mathf.Clamp(stamina, 0, 100);
    }

    private void Velocity()
    {
        isGround = Physics.CheckSphere(checkGroundTransform.position, checkRadiusSphere, groundMask);

        if (isGround && velocity.y < 0)
        {
            velocity.y = -2f;
        }

        if (Input.GetButtonDown("Jump") && isGround)
        {
            velocity.y = Mathf.Sqrt(jumpHeight * -2f * gravity);
        }

        velocity.y += Time.deltaTime * gravity;
        characterController.Move(velocity * Time.deltaTime);
    }

    public void SetSensitivity(float value)
    {
        sensetivity = Mathf.Clamp(value, 1f, 2000f);
        Debug.Log($"PlaerController: Установлена сенса = {sensetivity}");
    }

    public float GetSensitivity()
    {
        return sensetivity;
    }
}