using System;
using UnityEngine;
using UnityEngine.InputSystem;

public class PlayerMovement : MonoBehaviour
{
    [Header("Input Handlers")]
    [SerializeField] Transform orientation;

    [Header("Scripts")]
    [SerializeField] PlayerInputScript playerInput;
    [SerializeField] PlayerGroundCheck playerGroundCheck;

    [Header("Player Ground Values")]
    [SerializeField] float moveSpeed;
    //[SerializeField] float speedMult;
    [SerializeField] float groundDrag;
    [SerializeField] float airDrag;

    [Header("Player Air Values")]
    [SerializeField] float jumpForce;
    [SerializeField] float airMultiplier;

    // components
    private Rigidbody rb;
    private Vector3 moveDir;
    private bool isPlayerGrounded;

    private void Awake()
    {
        rb = GetComponent<Rigidbody>();
        //rb.freezeRotation = true;
    }

    private void FixedUpdate()
    {
        UpdatePlayerGrounded();
        HandleMovement();
        HandleAirDrag();
        SpeedClamper();

    }

    private void UpdatePlayerGrounded()
    {
        isPlayerGrounded =  playerGroundCheck.GetIsPlayerGrounded();
        //Debug.Log("Player grounded: " + isPlayerGrounded);
    }

    public void OnJump(InputValue value)
    {
        //Debug.Log("Jump pressed with val: " + value.isPressed);
        HandleJump();
    }

    private void HandleJump()
    {
        //print("Is player grounded" + isPlayerGrounded);
        if (isPlayerGrounded)
        {
            rb.linearVelocity = new Vector3(rb.linearVelocity.x, 0f, rb.linearVelocity.z); // set to 0
            rb.AddForce(transform.up * jumpForce, ForceMode.Impulse);
            //print("Force added: " + transform.up * jumpForce * Time.deltaTime);
        }

    }


    private void HandleAirDrag()
    {
        if (isPlayerGrounded)
        {
            //Debug.Log("Lin dampening");
            rb.linearDamping = groundDrag;
        } else
        {
            rb.linearDamping = airDrag;
        }
    }

    private void HandleMovement()
    {
        float airMultiplierApply = isPlayerGrounded ? 1 : airMultiplier;
        Vector3[] camDirections = GetCamDirections();
        moveDir = (camDirections[0] * playerInput.GetMoveInput().y) + (camDirections[1] * playerInput.GetMoveInput().x);
        //Debug.Log("player air mult: " + airMultiplierApply);
        rb.AddForce(moveDir * moveSpeed * 10f * Time.deltaTime * airMultiplierApply, ForceMode.VelocityChange); // XZ movement
        this.transform.rotation = Quaternion.LookRotation(camDirections[0]); // camera


    }

    // helper methods
    private Vector3[] GetCamDirections()
    {
        Vector3 camForward = orientation.forward;
        Vector3 camRight = orientation.right;
        camForward.y = 0;
        camRight.y = 0;
        camForward.Normalize();
        camRight.Normalize();

        return new Vector3[] { camForward, camRight };
    }

    private void SpeedClamper()
    {
        Vector3 flatVel = new Vector3(rb.linearVelocity.x, 0f, rb.linearVelocity.z);
        Debug.Log("Flat vel magnitude: " + flatVel.magnitude);
        if (flatVel.magnitude > moveSpeed)
        {
            Vector3 limitedVel = flatVel.normalized * moveSpeed;
            print("Limited vel: " + limitedVel.magnitude);
            rb.linearVelocity = new Vector3(limitedVel.x, rb.linearVelocity.y, limitedVel.z);

        }


    }

}