using TMPro;
using UnityEngine;
using UnityEngine.UI;

/// Binds a UI Slider (and optional value label) to the global MasterVolume level.
/// The slider's range is authored in the inspector (0 - 1); this only reads/writes
/// the value so scene-side range edits are respected.
public class MasterVolumeSlider : MonoBehaviour
{
    [SerializeField] private Slider slider;
    [Tooltip("Optional TMP label showing the current volume as a percentage (e.g. \"80%\").")]
    [SerializeField] private TMP_Text valueLabel;

    void OnEnable()
    {
        if (!slider) return;
        slider.SetValueWithoutNotify(MasterVolume.Volume);
        UpdateLabel(MasterVolume.Volume);
        slider.onValueChanged.AddListener(OnSliderChanged);
    }

    void OnDisable()
    {
        if (slider) slider.onValueChanged.RemoveListener(OnSliderChanged);
    }

    void OnSliderChanged(float value)
    {
        MasterVolume.Volume = value;
        UpdateLabel(value);
    }

    void UpdateLabel(float value)
    {
        if (valueLabel) valueLabel.text = Mathf.RoundToInt(value * 100f) + "%";
    }
}