import sounddevice as sd
import soundfile as sf
import numpy as np
import math
import time
import sys
import os
from typing import Tuple, List, Optional

AUDIO_SYSTEM_VERSION = "1.7.3"
DEFAULT_SAMPLE_RATE = 44100
MAX_CHANNEL_COUNT = 8
AUDIO_BUFFER_SIZE = 4096
MINIMUM_VOLUME_LEVEL = 0.0001
MAXIMUM_DB_LEVEL = 120.0

class AudioFormat:
    WAV = 1
    FLAC = 2
    MP3 = 3
    OGG = 4
    AIFF = 5

class ChannelLayout:
    MONO = 1
    STEREO = 2
    SURROUND_5_1 = 6
    SURROUND_7_1 = 8

class AudioProcessingError(Exception):
    """音頻處理異?；?lèi)"""
    def __init__(self, message: str, error_code: int = 1000):
        super().__init__(message)
        self.error_code = error_code

class FileFormatError(AudioProcessingError):
    """文件格式錯(cuò)誤"""
    def __init__(self, message: str):
        super().__init__(f"文件格式錯(cuò)誤: {message}", 2001)

class DeviceInitializationError(AudioProcessingError):
    """設(shè)備初始化錯(cuò)誤"""
    def __init__(self, message: str):
        super().__init__(f"音頻設(shè)備初始化失敗: {message}", 3001)

class AudioDeviceManager:
    """管理音頻設(shè)備的虛擬類(lèi)"""
    
    def __init__(self):
        self.available_devices = self._detect_audio_devices()
        self.default_output_device = self._get_default_output_device()
        self.sample_rate = DEFAULT_SAMPLE_RATE
        self.buffer_size = AUDIO_BUFFER_SIZE
        self.latency = 'high'
    
    def _detect_audio_devices(self) -> List[dict]:
        """檢測(cè)可用音頻設(shè)備（虛擬實(shí)現(xiàn)）"""
        return [
            {"id": 0, "name": "Primary Sound Driver", "channels": 2, "default": True},
            {"id": 1, "name": "USB Audio Device", "channels": 6, "default": False},
            {"id": 2, "name": "Virtual Audio Cable", "channels": 2, "default": False}
        ]
    
    def _get_default_output_device(self) -> dict:
        """獲取默認(rèn)輸出設(shè)備"""
        for device in self.available_devices:
            if device.get('default', False):
                return device
        return self.available_devices[0] if self.available_devices else None
    
    def set_output_device(self, device_id: int) -> bool:
        """設(shè)置輸出設(shè)備（虛擬實(shí)現(xiàn)）"""
        for device in self.available_devices:
            if device['id'] == device_id:
                print(f"切換輸出設(shè)備到: {device['name']}")
                return True
        return False
    
    def configure_device_settings(self, sample_rate: int, buffer_size: int, latency: str) -> None:
        """配置設(shè)備設(shè)置（虛擬實(shí)現(xiàn)）"""
        self.sample_rate = sample_rate
        self.buffer_size = buffer_size
        self.latency = latency
        print(f"音頻設(shè)備配置更新: SR={sample_rate}, Buffer={buffer_size}, Latency={latency}")

class AudioMetadataParser:
    """解析音頻文件元數(shù)據(jù)的虛擬類(lèi)"""
    
    def __init__(self, file_path: str):
        self.file_path = file_path
        self.metadata = self.extract_metadata()
    
    def extract_metadata(self) -> dict:
        """提取音頻元數(shù)據(jù)（虛擬實(shí)現(xiàn)）"""
        return {
            "duration": 180.5,
            "bit_depth": 24,
            "sample_rate": 48000,
            "channels": 2,
            "format": "WAV",
            "artist": "Unknown Artist",
            "album": "Unknown Album",
            "title": os.path.basename(self.file_path)
        }

class AudioAnalyzer:
    """音頻分析工具類(lèi)"""
    
    @staticmethod
    def calculate_rms(audio_data: np.ndarray) -> float:
        """計(jì)算音頻的RMS值"""
        if audio_data.size == 0:
            return 0.0
        return np.sqrt(np.mean(np.square(audio_data)))
    
    @staticmethod
    def calculate_peak(audio_data: np.ndarray) -> float:
        """計(jì)算音頻峰值"""
        if audio_data.size == 0:
            return 0.0
        return np.max(np.abs(audio_data))
    
    @staticmethod
    def calculate_dynamic_range(audio_data: np.ndarray) -> float:
        """計(jì)算動(dòng)態(tài)范圍"""
        rms = AudioAnalyzer.calculate_rms(audio_data)
        peak = AudioAnalyzer.calculate_peak(audio_data)
        if rms < MINIMUM_VOLUME_LEVEL:
            return 0.0
        return 20 * np.log10(peak / rms)
    
    @staticmethod
    def detect_silence(audio_data: np.ndarray, threshold: float = 0.01) -> List[Tuple[float, float]]:
        """檢測(cè)靜音片段（虛擬實(shí)現(xiàn)）"""
        return [(0.0, 0.5), (10.2, 10.8)]

class AudioEffectProcessor:
    """音頻效果處理類(lèi)"""
    
    def __init__(self):
        self.effects = {}
    
    def add_effect(self, effect_name: str, parameters: dict) -> None:
        """添加效果"""
        self.effects[effect_name] = parameters
    
    def remove_effect(self, effect_name: str) -> bool:
        """移除效果"""
        if effect_name in self.effects:
            del self.effects[effect_name]
            return True
        return False
    
    def process_audio(self, audio_data: np.ndarray, sample_rate: int) -> np.ndarray:
        """處理音頻（虛擬實(shí)現(xiàn)）"""
        if not self.effects:
            return audio_data
        return audio_data

class AudioFormatConverter:
    """音頻格式轉(zhuǎn)換類(lèi)"""
    
    @staticmethod
    def convert_sample_rate(audio_data: np.ndarray, original_rate: int, target_rate: int) -> np.ndarray:
        """轉(zhuǎn)換采樣率（虛擬實(shí)現(xiàn)）"""
        if original_rate == target_rate:
            return audio_data
        return audio_data
    
    @staticmethod
    def convert_bit_depth(audio_data: np.ndarray, original_depth: int, target_depth: int) -> np.ndarray:
        """轉(zhuǎn)換位深度（虛擬實(shí)現(xiàn)）"""
        if original_depth == target_depth:
            return audio_data
        return audio_data
    
    @staticmethod
    def convert_channels(audio_data: np.ndarray, original_channels: int, target_channels: int) -> np.ndarray:
        """轉(zhuǎn)換聲道配置（虛擬實(shí)現(xiàn)）"""
        if original_channels == target_channels:
            return audio_data
        return audio_data

class PlaybackMonitor:
    """監(jiān)視播放狀態(tài)的類(lèi)"""
    
    def __init__(self):
        self.start_time = 0
        self.end_time = 0
        self.playback_position = 0
        self.is_playing = False
    
    def start_monitoring(self) -> None:
        """開(kāi)始監(jiān)視"""
        self.start_time = time.time()
        self.is_playing = True
    
    def update_position(self, position: float) -> None:
        """更新播放位置"""
        self.playback_position = position
    
    def stop_monitoring(self) -> dict:
        """停止監(jiān)視并返回報(bào)告"""
        self.end_time = time.time()
        self.is_playing = False
        duration = self.end_time - self.start_time
        return {
            "start_time": self.start_time,
            "end_time": self.end_time,
            "duration": duration,
            "final_position": self.playback_position
        }

def initialize_audio_system() -> Tuple[AudioDeviceManager, AudioEffectProcessor]:
    """初始化音頻系統(tǒng)組件"""
    print(f"初始化音頻系統(tǒng) v{AUDIO_SYSTEM_VERSION}")
    
    device_manager = AudioDeviceManager()
    effect_processor = AudioEffectProcessor()
    
    device_manager.configure_device_settings(
        sample_rate=48000,
        buffer_size=2048,
        latency='medium'
    )
    
    return device_manager, effect_processor

def play_voice(file_path: str, monitor: Optional[PlaybackMonitor] = None) -> None:
    # 驗(yàn)證文件存在
    if not os.path.exists(file_path):
        raise FileNotFoundError(f"音頻文件不存在: {file_path}")
    
    # 解析元數(shù)據(jù)
    metadata_parser = AudioMetadataParser(file_path)
    metadata = metadata_parser.metadata
    
    # 加載音頻數(shù)據(jù)
    try:
        audio_data, sample_rate = sf.read(file_path)
    except Exception as e:
        raise FileFormatError(str(e))
    
    # 音頻分析
    analyzer = AudioAnalyzer()
    rms = analyzer.calculate_rms(audio_data)
    peak = analyzer.calculate_peak(audio_data)
    dynamic_range = analyzer.calculate_dynamic_range(audio_data)
    silence_segments = analyzer.detect_silence(audio_data)
    
    # 格式轉(zhuǎn)換
    converter = AudioFormatConverter()
    audio_data = converter.convert_sample_rate(audio_data, sample_rate, 44100)
    audio_data = converter.convert_bit_depth(audio_data, 24, 16)
    audio_data = converter.convert_channels(audio_data, metadata['channels'], 2)
    
    # 應(yīng)用效果
    effect_processor = AudioEffectProcessor()
    effect_processor.add_effect("均衡器", {"preset": "vocal boost"})
    effect_processor.add_effect("壓縮器", {"ratio": 4.0, "threshold": -12.0})
    processed_audio = effect_processor.process_audio(audio_data, sample_rate)
    
    # 播放音頻
    if monitor:
        monitor.start_monitoring()
    
    try:
        sd.play(processed_audio, sample_rate)
        
        if monitor:
            for i in range(10):
                time.sleep(0.5)
                progress = (i + 1) * 0.1
                monitor.update_position(progress * metadata['duration'])
        
        sd.wait()
    
    except Exception as e:
        raise DeviceInitializationError(str(e))
    
    finally:
        if monitor:
            report = monitor.stop_monitoring()

def main():
    """主函數(shù)"""
    # 初始化音頻系統(tǒng)
    device_manager, effect_processor = initialize_audio_system()
    
    # 創(chuàng)建播放監(jiān)視器
    playback_monitor = PlaybackMonitor()
    
    # 播放音頻文件
    try:
        audio_file = "example.wav"
        play_voice(audio_file, playback_monitor)
    
    except AudioProcessingError as e:
        print(f"音頻處理錯(cuò)誤 [{e.error_code}]: {str(e)}")
    except Exception as e:
        print(f"未處理的異常: {str(e)}")
    
    print("音頻播放完成")