using Fusion;
using UnityEngine;
using UnityEngine.UI;
using UnityEngine.Rendering.PostProcessing;  // if your MotionBlur comes from the Post-Process stack

public class NOSController : NetworkBehaviour
{
    // 1) This value is now network-synchronized
    [Networked] public float CurrentNOS { get; set; }

    [SerializeField] float chargeSpeed = 1f;
    [SerializeField] float depletionSpeed = 1f;
    [SerializeField] float boostAcceleration = 40f;
    [SerializeField] float audioVolume = 0.5f;
    [SerializeField] AudioSource boostAudio = null;
    public bool _isBoosting { get; private set; }

    // cached references
    VehicleController _vehicle;
    MotionBlur _motionBlur;
    Image _boostBarFill;
    Button _boostButton;

    public override void Spawned()
    {
        // grab your VehicleController
        _vehicle = GetComponent<VehicleController>();
        // find motion-blur on the main camera (if you have one)
        _motionBlur = Camera.main?.GetComponent<MotionBlur>();

        if (Object.HasInputAuthority)
        {
            // only the local player wires up UI
            _boostBarFill = GameUIManager.Instance.boostBarFill;
            _boostButton = GameUIManager.Instance.boostButton;

            _boostButton.onClick.RemoveAllListeners();
            _boostButton.onClick.AddListener(() => ActivateNOS(true));
        }

        // configure audio once
        if (boostAudio != null)
        {
            boostAudio.playOnAwake = false;
            boostAudio.loop = true;
            boostAudio.volume = audioVolume;
        }
    }

    public override void FixedUpdateNetwork()
    {
        // only run logic on the player who owns this object
        if (!Object.HasInputAuthority)
            return;

        // 2) Charge when not boosting
        if (!_vehicle.nosActive)
        {
            CurrentNOS = Mathf.Min(100f,
                CurrentNOS + Runner.DeltaTime * (chargeSpeed * _vehicle.LocalVelocity.z / 30f)
            );
        }
        else // 3) Deplete when boosting
        {
            CurrentNOS = Mathf.Max(0f,
                CurrentNOS - Runner.DeltaTime * depletionSpeed
            );

            if (CurrentNOS <= 0f)
                ActivateNOS(false);
        }

        // 4) Update the UI bar
        if (_boostBarFill != null)
            _boostBarFill.fillAmount = CurrentNOS / 100f;

        // 5) Play/stop the boost SFX
        if (boostAudio != null)
        {
            if (_vehicle.nosActive && CurrentNOS > 0f)
            {
                if (!boostAudio.isPlaying) boostAudio.Play();
            }
            else
            {
                if (boostAudio.isPlaying) boostAudio.Stop();
            }
        }

        // 6) Toggle motion blur
        if (_motionBlur != null)
            _motionBlur.enabled = (_vehicle.nosActive && CurrentNOS > 0f);
    }

    /// <summary>
    /// Called by your UI button (via Spawned) to start/stop boost.
    /// </summary>

    // Update ActivateNOS method:
    void ActivateNOS(bool active)
    {
        _isBoosting = active;

        if (active)
        {
            if (CurrentNOS <= 0f) return;
            _vehicle.ActivateNOS(true, boostAcceleration);
        }
        else
        {
            _vehicle.ActivateNOS(false);
        }
    }
}