using DG.Tweening.Core.Easing;
using System.Collections;
using System.Collections.Generic;
using TMPro;
using UnityEngine;
using UnityEngine.Audio;
using UnityEngine.UI;

public class UIHome_BY_SettingPanel : SubUIBase
{
    public Toggle toggle_SystemSetting;//默认打开系统设置界面
    public Slider slider_AudioMusic;
    public Slider slider_AudioEffect;

    [Header("画质")]
    public Toggle toggle_QualityLow;
    public Toggle toggle_QualityMid;
    public Toggle toggle_QualityHigh;
    public ToggleGroup group_Quality;

    [Header("帧率")]
    public Toggle toggle_Fps30;
    public Toggle toggle_Fps60;
    public Toggle toggle_FpsUnlimited;
    public ToggleGroup group_Fps;

    private Dictionary<Toggle, Color> labelOriginalColors = new Dictionary<Toggle, Color>();
    private static readonly Color SELECTED_COLOR = Color.white;
    public Button btn_ChangeUser;
    public override void Awake()
    {
        base.Awake();
        btn_ChangeUser.onClick.AddListener(() =>
        {
            GameManager.Instance.Logout();
        });
        slider_AudioMusic.value = PlayerPrefs.GetFloat("slider_AudioBG", 1f);
        slider_AudioEffect.value = PlayerPrefs.GetFloat("slider_FX", 1f);
        slider_AudioMusic.onValueChanged.AddListener((a) =>
        {
            PlayerPrefs.SetFloat("slider_AudioBG", a);
            PlayerPrefs.Save();
            // 1. 确保值不会为0
            float linearValue = Mathf.Max(a, 0.0001f);

            // 2. 转换为分贝
            float dBValue = 20.0f * Mathf.Log10(linearValue);
            AudioManager.Instance.audioMixer.SetFloat("BGVolume", dBValue);

        });
        slider_AudioEffect.onValueChanged.AddListener((a) =>
        {
            PlayerPrefs.SetFloat("slider_FX", a);
            PlayerPrefs.Save();
            // 1. 确保值不会为0
            float linearValue = Mathf.Max(a, 0.0001f);

            // 2. 转换为分贝
            float dBValue = 20.0f * Mathf.Log10(linearValue);
            AudioManager.Instance.audioMixer.SetFloat("FXVolume", dBValue);

        });

        // 画质
        CacheToggleColor(toggle_QualityLow);
        CacheToggleColor(toggle_QualityMid);
        CacheToggleColor(toggle_QualityHigh);
        int quality = PlayerPrefs.GetInt("GraphicsQuality", 1);
        ApplyQuality(quality);
        toggle_QualityLow?.onValueChanged.AddListener(a => { if (a) SetQuality(0); });
        toggle_QualityMid?.onValueChanged.AddListener(a => { if (a) SetQuality(1); });
        toggle_QualityHigh?.onValueChanged.AddListener(a => { if (a) SetQuality(2); });

        // 帧率
        CacheToggleColor(toggle_Fps30);
        CacheToggleColor(toggle_Fps60);
        CacheToggleColor(toggle_FpsUnlimited);
        int fps = PlayerPrefs.GetInt("TargetFps", 1);
        ApplyFps(fps);
        toggle_Fps30?.onValueChanged.AddListener(a => { if (a) SetFps(0); });
        toggle_Fps60?.onValueChanged.AddListener(a => { if (a) SetFps(1); });
        toggle_FpsUnlimited?.onValueChanged.AddListener(a => { if (a) SetFps(2); });
    }
    protected override void OnShow(object args = null)
    {
        base.OnShow(args);
        toggle_SystemSetting.isOn = true;
    }
    private void CacheToggleColor(Toggle tg)
    {
        if (tg == null) return;
        var label = tg.GetComponentInChildren<TextMeshProUGUI>();
        if (label != null && !labelOriginalColors.ContainsKey(tg))
            labelOriginalColors[tg] = label.color;
    }

    private void UpdateToggleColor(Toggle tg, bool selected)
    {
        if (tg == null || !labelOriginalColors.TryGetValue(tg, out var origColor)) return;
        var label = tg.GetComponentInChildren<TextMeshProUGUI>();
        if (label != null)
            label.color = selected ? SELECTED_COLOR : origColor;
    }

    private void SetQuality(int level)
    {
        PlayerPrefs.SetInt("GraphicsQuality", level);
        PlayerPrefs.Save();
        ApplyQuality(level);
    }

    private void ApplyQuality(int level)
    {
        if (toggle_QualityLow != null) toggle_QualityLow.isOn = (level == 0);
        if (toggle_QualityMid != null) toggle_QualityMid.isOn = (level == 1);
        if (toggle_QualityHigh != null) toggle_QualityHigh.isOn = (level == 2);
        UpdateToggleColor(toggle_QualityLow, level == 0);
        UpdateToggleColor(toggle_QualityMid, level == 1);
        UpdateToggleColor(toggle_QualityHigh, level == 2);
        // 关键：applyExpensiveChanges 必须为 false。
        // URP 下每个画质档位绑定不同 URP Asset，SetQualityLevel(true) 会立即重建渲染管线/重编译 shader，
        // 瞬间 GPU 负载骤增，在低端显卡/驱动不兼容时触发设备重置导致闪退。
        // false 表示昂贵更改延迟到安全时机（下一帧）应用，避免闪退。
        QualitySettings.SetQualityLevel(level, false);
    }

    private void SetFps(int level)
    {
        PlayerPrefs.SetInt("TargetFps", level);
        PlayerPrefs.Save();
        ApplyFps(level);
    }

    private void ApplyFps(int level)
    {
        if (toggle_Fps30 != null) toggle_Fps30.isOn = (level == 0);
        if (toggle_Fps60 != null) toggle_Fps60.isOn = (level == 1);
        if (toggle_FpsUnlimited != null) toggle_FpsUnlimited.isOn = (level == 2);
        UpdateToggleColor(toggle_Fps30, level == 0);
        UpdateToggleColor(toggle_Fps60, level == 1);
        UpdateToggleColor(toggle_FpsUnlimited, level == 2);
        // 中高档统一为 60 帧。移动端强制垂直同步，45 不可用（60Hz 整数倍才合法），
        // 故中档也直接按 60 处理，避免闪退。
        switch (level)
        {
            case 0: Application.targetFrameRate = 30; break;
            case 1:
            case 2: Application.targetFrameRate = 60; break;
        }
    }
}