"""
Creative Studio 配置管理
支持环境变量和配置文件
"""
from pydantic_settings import BaseSettings
from functools import lru_cache
from typing import List
import os


class Settings(BaseSettings):
    """应用配置"""

    # ============================================
    # 应用配置
    # ============================================
    app_name: str = "Creative Studio"
    app_version: str = "1.0.0"
    debug: bool = True
    environment: str = "development"

    # 服务器配置
    host: str = "0.0.0.0"
    port: int = 8000

    # ============================================
    # GLM API 配置
    # ============================================
    zai_api_key: str
    zai_model: str = "glm-4.7"

    # ============================================
    # 数据库配置
    # ============================================
    mongodb_url: str = "mongodb://localhost:27017"
    mongodb_database: str = "creative_studio"

    redis_url: str = "redis://localhost:6379/0"

    # ============================================
    # 安全配置
    # ============================================
    secret_key: str
    algorithm: str = "HS256"
    access_token_expire_minutes: int = 60
    refresh_token_expire_days: int = 7

    # ============================================
    # 文件存储配置
    # ============================================
    storage_path: str = "./storage"
    max_file_size: int = 100  # MB

    # ============================================
    # Celery 配置
    # ============================================
    celery_broker_url: str = "redis://localhost:6379/1"
    celery_result_backend: str = "redis://localhost:6379/2"

    # ============================================
    # CORS 配置
    # ============================================
    allowed_origins: str = "http://localhost:5173,http://localhost:3000"

    # ============================================
    # 日志配置
    # ============================================
    log_level: str = "INFO"
    log_file: str = "./logs/app.log"

    # ============================================
    # Skill 存储配置
    # ============================================
    skills_dir: str = os.path.join(os.path.dirname(os.path.dirname(__file__)), "skills_storage")

    @property
    def cors_origins(self) -> List[str]:
        """解析 CORS 允许的源"""
        return [origin.strip() for origin in self.allowed_origins.split(",")]

    class Config:
        env_file = ".env"
        env_file_encoding = "utf-8"
        case_sensitive = False


@lru_cache()
def get_settings() -> Settings:
    """
    获取配置单例

    使用:
        from app.config import settings
        settings = get_settings()
    """
    return Settings()


# 导出配置实例
settings = get_settings()