import os
from pathlib import Path

from dotenv import load_dotenv


BASE_DIR = Path(__file__).resolve().parents[2]
load_dotenv(BASE_DIR / ".env")


class Settings:
    app_name = "问大家运营管理后台"
    database_url = os.getenv("DATABASE_URL", f"sqlite:///{BASE_DIR / 'data' / 'app.db'}")
    _screenshot_storage_value = Path(os.getenv("SCREENSHOT_STORAGE_DIR", "data/uploads/screenshots"))
    screenshot_storage_dir = (
        _screenshot_storage_value
        if _screenshot_storage_value.is_absolute()
        else BASE_DIR / _screenshot_storage_value
    )
    secret_key = os.getenv("SECRET_KEY", "change-this-secret-key-in-production")
    cookie_name = "admin_session"
    session_hours = int(os.getenv("SESSION_HOURS", "12"))
    cookie_secure = os.getenv("COOKIE_SECURE", "false").lower() == "true"
    admin_username = os.getenv("ADMIN_USERNAME", "admin")
    admin_password = os.getenv("ADMIN_PASSWORD", "admin123456")
    operator_username = os.getenv("OPERATOR_USERNAME", "operator")
    operator_password = os.getenv("OPERATOR_PASSWORD", "operator123456")
    llm_api_key = os.getenv("LLM_API_KEY", "")
    llm_base_url = os.getenv("LLM_BASE_URL", "https://api.openai.com/v1")
    llm_model = os.getenv("LLM_MODEL", "gpt-4o-mini")
    # OCR/识图可单独使用视觉模型，未配置时沿用普通问答模型。
    llm_vision_model = os.getenv("LLM_VISION_MODEL", llm_model)
    llm_timeout_seconds = int(os.getenv("LLM_TIMEOUT_SECONDS", "90"))
    # 开发环境返回验证码，接入短信服务后请关闭并在发送函数中对接供应商。
    sms_dev_mode = os.getenv("SMS_DEV_MODE", "true").lower() == "true"
    # DingTalk workbench SSO/OAuth settings.
    dingtalk_corp_id = os.getenv("DINGTALK_CORP_ID", "")
    dingtalk_agent_id = os.getenv("DINGTALK_AGENT_ID", "")
    dingtalk_client_id = os.getenv("DINGTALK_CLIENT_ID", "")
    dingtalk_client_secret = os.getenv("DINGTALK_CLIENT_SECRET", "")
    dingtalk_redirect_uri = os.getenv("DINGTALK_REDIRECT_URI", "http://localhost:8000/api/admin/auth/dingtalk/callback")
    frontend_url = os.getenv("FRONTEND_URL", "http://localhost:5173")
    dingtalk_allowed_union_ids = {item.strip() for item in os.getenv("DINGTALK_ALLOWED_UNION_IDS", "").split(",") if item.strip()}
    # New DingTalk users may enter only when they belong to one of these
    # business divisions (including child departments). Existing active
    # admin_users are grandfathered and continue to work.
    dingtalk_allowed_dept_ids = {item.strip() for item in os.getenv("DINGTALK_ALLOWED_DEPT_IDS", "").split(",") if item.strip()}
    dingtalk_allowed_dept_names = {item.strip() for item in os.getenv("DINGTALK_ALLOWED_DEPT_NAMES", "战狼事业部,雪狼事业部").split(",") if item.strip()}
    dingtalk_super_admin_union_ids = {item.strip() for item in os.getenv("DINGTALK_SUPER_ADMIN_UNION_IDS", "").split(",") if item.strip()}
    # Members of these departments receive the same access as super admins.
    # IDs are preferred; names are supported as a readable fallback.
    dingtalk_super_admin_dept_ids = {item.strip() for item in os.getenv("DINGTALK_SUPER_ADMIN_DEPT_IDS", "").split(",") if item.strip()}
    dingtalk_super_admin_dept_names = {item.strip() for item in os.getenv("DINGTALK_SUPER_ADMIN_DEPT_NAMES", "AI指挥部").split(",") if item.strip()}


settings = Settings()