from pydantic_settings import BaseSettings
from pathlib import Path


class Settings(BaseSettings):
    APP_HOST: str = "0.0.0.0"
    APP_PORT: int = 8000
    APP_DEBUG: bool = False

    AI_PROVIDER: str = "glm"
    ZHIPU_API_KEY: str = ""
    # 留空=用 SDK 默认地址(标准套餐 https://open.bigmodel.cn/api/paas/v4)
    # coding 套餐填 https://open.bigmodel.cn/api/coding/paas/v4
    ZHIPU_BASE_URL: str = ""
    AI_MODEL: str = "glm-4-flash"

    DATABASE_URL: str = "sqlite+aiosqlite:///./data/hesupipe_ai_kefu.db"

    SMTP_HOST: str = ""
    SMTP_PORT: int = 465
    SMTP_USER: str = ""
    SMTP_PASS: str = ""
    NOTIFY_EMAIL: str = ""

    # 询盘推送 UniService(docs/superpowers/specs/2026-09-28-lead-push-to-uniservice-design.md)
    PUSH_ENABLED: bool = False
    PUSH_API_URL: str = "https://uniservice.server.hnxinyouhe.com/open/v1/inquiry/push"
    PUSH_API_KEY: str = ""
    PUSH_EXTERNAL_KEY_PREFIX: str = "ai-kefu"
    PUSH_TIMEOUT_SECONDS: float = 10.0
    PUSH_MAX_ATTEMPTS: int = 3
    PUSH_RETRY_BACKOFF_BASE: float = 1.0   # 尝试间隔 1s/2s(3 次尝试、2 次间隔)

    ADMIN_PASSWORD: str = "admin123"

    model_config = {
        "env_file": ".env",
        "env_file_encoding": "utf-8",
    }


BASE_DIR = Path(__file__).resolve().parent.parent
DATA_DIR = BASE_DIR / "data"
STATIC_DIR = BASE_DIR / "static"

settings = Settings()


def ensure_dirs():
    DATA_DIR.mkdir(exist_ok=True)