using UnityEngine;
using UnityEngine.InputSystem;

[RequireComponent(typeof(CharacterController))]
public class PlayerMovement : MonoBehaviour
{
    public float playerSpeed = 10.0f;
    private float earthSpeed = 10f;
    private float jumpHeight = 2.5f;
    private float gravityValue = -9.81f;

    private CharacterController controller;
    private Vector3 playerVelocity;
    private bool groundedPlayer;

    private float xRotation = 0f;

    [Header("Input Actions")]
    public InputActionReference moveAction;
    public InputActionReference jumpAction;

    [Header("Camera Settings")]
    public Transform playerCamera;
    public float mouseSensitivity = 3f;

    [Header("Ground Checker")]
    public Transform groundCheck;
    public float groundDistance = 0.4f;
    public LayerMask groundMask;

    private void Awake()
    {
        controller = gameObject.GetComponent<CharacterController>();
        Cursor.lockState = CursorLockMode.Locked;
        Cursor.visible = false;
    }

    private void Start()
    {
        SetPlayerRandomSpeed();
        earthSpeed = playerSpeed;
    }
    private void OnEnable()
    {
        moveAction.action.Enable();
        jumpAction.action.Enable();
    }

    private void OnDisable()
    {
        moveAction.action.Disable();
        jumpAction.action.Disable();
    }

    void Update()
    {
        if (MenuController.Instance.isPaused) return;
        MoveMouse();
        PlayerJump();
        MovePlayer();       
    }

    private void MoveMouse()
    {
        float mouseX = Input.GetAxis("Mouse X") * mouseSensitivity;
        float mouseY = Input.GetAxis("Mouse Y") * mouseSensitivity;

        xRotation -= mouseY;
        xRotation = Mathf.Clamp(xRotation, -80f, 80f);

        playerCamera.localRotation = Quaternion.Euler(xRotation, 0f, 0f);

        transform.Rotate(Vector3.up * mouseX);
    }

    private void PlayerJump()
    {
        groundedPlayer = Physics.CheckSphere(groundCheck.position, groundDistance, groundMask);
        if (groundedPlayer && playerVelocity.y < 0)
        {
            playerVelocity.y = 0f;
        }

        if (jumpAction.action.triggered && groundedPlayer)
        {
            playerVelocity.y = Mathf.Sqrt(jumpHeight * -2.0f * gravityValue);
        }
    }

    private void MovePlayer()
    {
        float horizontal = Input.GetAxis("Horizontal");
        float vertical = Input.GetAxis("Vertical");

        Vector3 move = transform.right * horizontal + transform.forward * vertical;
        controller.Move(move * playerSpeed * Time.deltaTime);

        playerVelocity.y += gravityValue * Time.deltaTime;
        controller.Move(playerVelocity * Time.deltaTime);
    }

    [ContextMenu("Set player random speed")]
    public void SetPlayerRandomSpeed()
    {
        playerSpeed = Random.Range(8, 15);
        earthSpeed = playerSpeed;
    }

    public void SetPlayerEarthSpeed()
    {
        playerSpeed = earthSpeed;
        gravityValue = -9.81f;
    }

    public void SetPlayerLunarSpeed()
    {
        playerSpeed *= Mathf.Sqrt(1.62f / 9.81f);
        gravityValue = -1.62f;
    }
}