using System.Collections;
using System.Collections.Generic;
using TMPro;
using UnityEngine;
using UnityEngine.UI;

public class LightSettingPanel : BasePanel
{
    public Slider BrightnessSlider;
    private SettingsViewModel _vm;
    public TextMeshProUGUI BrightnessText;

    public Button HomeButton;
    public Button ConfirmButton;
	public Button BackButton;

    public override void Init()
    {
        _vm = new SettingsViewModel();
        InitializeUI();
    }

    private void InitializeUI()
    {
        if (BrightnessSlider != null)
        {
            BrightnessSlider.minValue = 10;
            BrightnessSlider.maxValue = 100;
            BrightnessSlider.wholeNumbers = true;
            BrightnessSlider.value = Mathf.Clamp(_vm.Brightness, 10f, 100f);

            BrightnessSlider.onValueChanged.AddListener(OnBrightnessChanged);
        }

        int initialBrightness = BrightnessSlider != null ? (int)BrightnessSlider.value : Mathf.Clamp((int)_vm.Brightness, 10, 100);
        UpdateBrightnessText(initialBrightness);
        Screen.brightness = initialBrightness / 100f;

        if (HomeButton != null)
        {
            HomeButton.onClick.AddListener(() =>
            {
                ConfirmDialog.Show("确认", "是否返回主界面？", () =>
                {
                    ReturnToHome();
                });
                
            });
        }
        if (ConfirmButton != null)
        {
            ConfirmButton.onClick.AddListener(ApplyAndBack);
        }
		if (BackButton != null)
		{
			BackButton.onClick.AddListener(() => 
                ConfirmDialog.Show("确认", "是否返回设置界面？", () =>
                {
                    ClosePanel();
                    ClosePanel();
                })
            );
		}
    }

    private void OnBrightnessChanged(float value)
    {
        int brightnessPercent = Mathf.Clamp((int)value, 10, 100);
        UpdateBrightnessText(brightnessPercent);
        Screen.brightness = brightnessPercent / 100f; 
    }

    private void UpdateBrightnessText(int brightnessPercent)
    {
        if (BrightnessText != null)
        {
            BrightnessText.text = $"{brightnessPercent}%";
        }
    }

    private void ApplyAndBack()
    {
        if (BrightnessSlider != null) 
        {
            float finalBrightness = Mathf.Clamp(BrightnessSlider.value, 10f, 100f);
            _vm.Brightness = finalBrightness;
            Screen.brightness = finalBrightness / 100f;
            UpdateBrightnessText((int)finalBrightness);
            Debug.Log($"LightSettingPanel: 应用亮度设置 {finalBrightness}%");
        }
        ClosePanel();
    }

}