using UnityEngine;

/// <summary>
/// 音频音量全局配置类
/// 职责：统一管理所有音量设置，替代分散的静态字段
/// 注意：使用 AudioVolumeSettings 避免与 Unity 内置的 UnityEngine.AudioSettings 冲突
/// </summary>
public class AudioVolumeSettings
{
    #region Singleton
    
    private static AudioVolumeSettings _instance;
    public static AudioVolumeSettings Instance
    {
        get
        {
            if (_instance == null)
            {
                _instance = new AudioVolumeSettings();
            }
            return _instance;
        }
    }
    
    #endregion
    
    #region Volume Settings
    
    /// <summary>
    /// 全局总音量 (0-1)
    /// </summary>
    public float GlobalVolume
    {
        get => _globalVolume;
        set => _globalVolume = Mathf.Clamp01(value);
    }
    private float _globalVolume = 1f;
    
    /// <summary>
    /// 音乐音量 (0-1)
    /// </summary>
    public float MusicVolume
    {
        get => _musicVolume;
        set => _musicVolume = Mathf.Clamp01(value);
    }
    private float _musicVolume = 1f;
    
    /// <summary>
    /// 音效音量 (0-1)
    /// </summary>
    public float SoundVolume
    {
        get => _soundVolume;
        set => _soundVolume = Mathf.Clamp01(value);
    }
    private float _soundVolume = 1f;
    
    /// <summary>
    /// 语音音量 (0-1)
    /// </summary>
    public float SpeakVolume
    {
        get => _speakVolume;
        set => _speakVolume = Mathf.Clamp01(value);
    }
    private float _speakVolume = 1f;
    
    #endregion
    
    #region Computed Volumes
    
    /// <summary>
    /// 获取音乐的最终音量（全局音量 * 音乐音量）
    /// </summary>
    public float GetMusicVolume() => GlobalVolume * MusicVolume;
    
    /// <summary>
    /// 获取音效的最终音量（全局音量 * 音效音量）
    /// </summary>
    public float GetSoundVolume() => GlobalVolume * SoundVolume;
    
    /// <summary>
    /// 获取语音的最终音量（全局音量 * 语音音量）
    /// </summary>
    public float GetSpeakVolume() => GlobalVolume * SpeakVolume;
    
    #endregion
    
    #region Utility Methods
    
    /// <summary>
    /// 重置所有音量到默认值
    /// </summary>
    public void ResetToDefaults()
    {
        GlobalVolume = 1f;
        MusicVolume = 1f;
        SoundVolume = 1f;
        SpeakVolume = 1f;
    }
    
    /// <summary>
    /// 静音所有音频
    /// </summary>
    public void MuteAll()
    {
        GlobalVolume = 0f;
    }
    
    /// <summary>
    /// 取消静音（恢复到上次的音量）
    /// </summary>
    public void UnmuteAll()
    {
        if (GlobalVolume == 0f)
        {
            GlobalVolume = 1f;
        }
    }
    
    /// <summary>
    /// 检查是否静音
    /// </summary>
    public bool IsMuted => GlobalVolume <= 0f;
    
    #endregion
}