import os
from typing import Optional
from pydantic_settings import BaseSettings


class Settings(BaseSettings):
    """应用配置类"""
    
    # API密钥配置
    api_key: str = "123tangledup-ai"
    
    # SMS配置
    sms_template_code: str = "SMS_465420786"
    sms_sign_name: str = "叠加态科技"
    
    # 数据库配置
    db_host: str = "121.43.104.161"
    db_port: str = "6432"
    db_name: str = "call_data"
    db_user: str = "tangledup-ai"
    db_password: str = "123tangledup-ai"
    db_sslmode: str = "disable"
    
    # 阿里云OSS配置
    oss_access_key_id: str = "LTAI5tE62GW8MKyoEaotzxXk"
    oss_access_key_secret: str = "Zdzqo1fgj57DxxioXOotNKhJdSfVQW"
    oss_endpoint: str = "https://oss-cn-shanghai.aliyuncs.com"
    oss_bucket_name: str = "tangledup-ai-staging"
    oss_internal_endpoint: str = "https://oss-cn-shanghai-internal.aliyuncs.com"
    
    # FastAPI配置
    app_host: str = os.getenv("APP_HOST", "0.0.0.0")
    app_port: int = int(os.getenv("APP_PORT", "8000"))
    debug: bool = os.getenv("DEBUG", "True").lower() == "true"
    
    # 文件上传配置
    max_file_size: int = 1024 * 1024 * 1024  # 1GB
    allowed_extensions: list = ['.jpg', '.jpeg', '.png', '.gif', '.pdf', '.txt', '.doc', '.docx', '.mp3', '.mp4', '.wav', '.webm']
    
    class Config:
        env_file = ".env"


# 全局设置实例
settings = Settings()