"""환경 설정"""
from pydantic_settings import BaseSettings
from functools import lru_cache
from typing import List


class Settings(BaseSettings):
    """환경 설정 클래스"""

    # 서버 설정
    app_name: str = "AI Service (Python)"
    host: str = "0.0.0.0"
    port: int = 8086  # STT(8084)와 충돌 방지

    # Claude API
    claude_api_key: str = ""
    claude_model: str = "claude-3-5-sonnet-20241022"
    claude_max_tokens: int = 250000
    claude_temperature: float = 0.7

    # Redis
    redis_host: str = "20.249.177.114"
    redis_port: int = 6379
    redis_password: str = ""
    redis_db: int = 4

    # Azure Event Hub
    eventhub_connection_string: str = ""
    eventhub_name: str = "hgzero-eventhub-name"
    eventhub_consumer_group: str = "ai-transcript-group"

    # CORS
    cors_origins: List[str] = [
        "http://localhost:*",
        "http://127.0.0.1:*",
        "http://localhost:8080",
        "http://localhost:3000"
    ]

    # 로깅
    log_level: str = "INFO"

    # 분석 임계값
    min_segments_for_analysis: int = 10
    text_retention_seconds: int = 300  # 5분

    class Config:
        env_file = ".env"
        case_sensitive = False


@lru_cache()
def get_settings() -> Settings:
    """싱글톤 설정 인스턴스"""
    return Settings()