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129 lines
5.8 KiB
Python
Executable File
129 lines
5.8 KiB
Python
Executable File
"""统一配置基类 — 所有服务共享的基础配置。
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数据库/Redis/OSS/Celery/AI服务等通用配置统一定义在此。
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API 和 Worker 各自的 Settings 类继承本类,只追加服务特有字段。
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单例模式和 env 文件加载逻辑也统一在这里实现。
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"""
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import os
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from typing import Optional, Type, TypeVar
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from pydantic_settings import BaseSettings, SettingsConfigDict
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T = TypeVar("T", bound=BaseSettings)
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class SharedSettings(BaseSettings):
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"""所有服务共享的基础配置。
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API 和 Worker 都继承本类,确保:
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1. 数据库/Redis/OSS/Celery 等核心配置默认值一致
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2. 环境变量命名统一(snake_case,pydantic-settings 自动兼容大写)
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3. env 文件加载逻辑只实现一次
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"""
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# ── 环境 ──────────────────────────────────────────────────────────────
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environment: str = "development"
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debug: bool = True
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auto_create_schema: bool = False
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# ── 数据库 ────────────────────────────────────────────────────────────
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database_url: str = "postgresql+psycopg://postgres:postgres@localhost:5432/xiaoxia_saas"
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database_pool_size: int = 20
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database_max_overflow: int = 10 # pool_size(20) + max_overflow(10) = 最大30连接
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database_pool_timeout: int = 30
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database_pool_recycle: int = 3600
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# 测试用:使用 SQLite 内存数据库(CI 环境无需 PostgreSQL)
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use_in_memory_db: bool = False
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# ── Redis ────────────────────────────────────────────────────────────
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redis_url: str = "redis://localhost:6379/0"
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# ── Celery ───────────────────────────────────────────────────────────
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celery_broker_url: str = "redis://localhost:6379/0"
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celery_result_backend: str = "redis://localhost:6379/1"
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# ── OSS 阿里云 ──────────────────────────────────────────────────────
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oss_endpoint: str = "oss-cn-hangzhou.aliyuncs.com"
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oss_access_key_id: str = ""
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oss_access_key_secret: str = ""
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oss_bucket_name: str = "xiaoxia-autocut"
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oss_direct_upload_max_mb: int = 2000
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oss_direct_upload_expire_seconds: int = 900
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# ── CosyVoice (阿里云百炼语音合成) ───────────────────────────────────
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cosyvoice_api_key: str = ""
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cosyvoice_base_url: str = "https://dashscope.aliyuncs.com/api/v1"
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cosyvoice_model: str = "cosyvoice-v3-flash"
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cosyvoice_voice: str = "longxiaochun_v3" # 默认音色(v3 系列系统音色带 _v3 后缀)
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cosyvoice_sample_rate: int = 22050
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cosyvoice_format: str = "mp3" # 输出格式:mp3/wav/pcm
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# 音色克隆模型名(固定为 voice-enrollment)
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cosyvoice_clone_model: str = "voice-enrollment"
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# ── 豆包大模型(火山引擎方舟) ────────────────────────────────────────
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doubao_api_key: str = ""
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doubao_model: str = "doubao-seed-1-6-250615"
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doubao_base_url: str = "https://ark.cn-beijing.volces.com/api/v3"
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doubao_timeout: int = 30
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doubao_max_retries: int = 2
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# ── MediaKit (火山引擎 AI 媒体工具) ──────────────────────────────────
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mediakit_api_key: str = ""
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mediakit_base_url: str = "https://mediakit.cn-beijing.volces.com/api/v1"
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mediakit_timeout: int = 60
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@property
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def effective_database_url(self) -> str:
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"""返回实际使用的数据库 URL。
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当 USE_IN_MEMORY_DB=True 时返回 SQLite 内存 URL,否则返回 database_url。
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"""
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if self.use_in_memory_db:
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return "sqlite:///./test.db"
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return self.database_url
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model_config = SettingsConfigDict(
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env_file=".env",
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env_file_encoding="utf-8",
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case_sensitive=False,
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extra="ignore",
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)
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# ── 统一单例管理 ────────────────────────────────────────────────────────
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# 所有 Settings 类的单例缓存都在这里,消除每处各自实现的重复代码
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_settings_cache: dict[str, BaseSettings] = {}
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def _get_env_file() -> str:
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"""根据 APP_ENV 决定读取哪个 env 文件。"""
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env = os.getenv("APP_ENV", "development")
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env_file = f".env.{env}" if env != "development" else ".env"
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return env_file if os.path.exists(env_file) else ".env"
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def get_cached_settings(settings_class: Type[T], cache_key: Optional[str] = None) -> T:
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"""统一的 Settings 单例获取函数。
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所有服务都通过这个函数获取配置,消除重复的单例实现。
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按类名缓存,同一类只初始化一次。
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"""
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key = cache_key or settings_class.__name__
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if key not in _settings_cache:
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env_file = _get_env_file()
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_settings_cache[key] = settings_class(_env_file=env_file)
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return _settings_cache[key] # type: ignore[return-value]
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def reload_settings_cache() -> None:
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"""清空配置缓存,下次获取时重新加载。测试用。"""
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_settings_cache.clear()
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def get_shared_settings() -> SharedSettings:
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"""获取共享配置单例(统一入口)。"""
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return get_cached_settings(SharedSettings)
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