Tolan/backend/config.py

"""
配置管理模块
"""
import os
from pathlib import Path
from pydantic_settings import BaseSettings
from dotenv import load_dotenv

# 加载环境变量
load_dotenv()

class Settings(BaseSettings):
    """应用配置"""
    
    # 应用基础配置
    APP_NAME: str = "Tolan Voice Assistant"
    APP_VERSION: str = "1.0.0"
    DEBUG: bool = False
    
    # 服务器配置
    HOST: str = "0.0.0.0"
    PORT: int = 8000
    
    # WebSocket配置
    WS_HEARTBEAT_INTERVAL: int = 30  # 心跳间隔（秒）
    WS_TIMEOUT: int = 60  # 超时时间（秒）
    
    # 豆包API超时配置
    DOUBAO_RECV_TIMEOUT: int = 15  # 接收消息超时（秒）
    DOUBAO_CONNECT_TIMEOUT: int = 10  # 连接超时（秒）
    DOUBAO_RESPONSE_TIMEOUT: int = 20  # 响应超时（秒）
    
    # 豆包API配置
    DOUBAO_API_KEY: str = os.getenv("DOUBAO_API_KEY", "")
    DOUBAO_APP_ID: str = os.getenv("DOUBAO_APP_ID", "")
    DOUBAO_API_URL: str = os.getenv("DOUBAO_API_URL", "wss://openspeech.bytedance.com/api/v3/realtime/dialogue")
    DOUBAO_OUTPUT_FORMAT: str = os.getenv("DOUBAO_OUTPUT_FORMAT", "ogg_opus")  # ogg_opus 或 pcm
    
    # 连接池配置
    CONNECTION_POOL_SIZE: int = 15  # 增加连接池大小
    CONNECTION_MAX_IDLE_TIME: int = 180  # 减少最大空闲时间（秒）
    CONNECTION_HEALTH_CHECK_INTERVAL: int = 30  # 减少健康检查间隔（秒）
    
    # 音频配置
    AUDIO_SAMPLE_RATE: int = 16000
    AUDIO_BIT_RATE: int = 16
    AUDIO_CHANNELS: int = 1
    
    # CORS配置
    CORS_ORIGINS: list = [
        "http://localhost:5173",
        "https://localhost:5173",
        "http://127.0.0.1:5173",
        "https://127.0.0.1:5173",
    ]
    
    # 日志配置
    LOG_LEVEL: str = "INFO"
    LOG_DIR: str = "logs"
    LOG_ROTATION: str = "500 MB"
    LOG_RETENTION: str = "10 days"
    
    # SSL配置（可选）
    SSL_KEYFILE: str = os.getenv("SSL_KEYFILE", "../ssl/key.pem")
    SSL_CERTFILE: str = os.getenv("SSL_CERTFILE", "../ssl/cert.pem")
    
    class Config:
        env_file = ".env"
        case_sensitive = True

# 创建全局配置实例
settings = Settings()

# 确保日志目录存在
Path(settings.LOG_DIR).mkdir(parents=True, exist_ok=True)