import os
import datetime
from sqlalchemy import create_engine, Column, Integer, String, DateTime
from sqlalchemy.orm import declarative_base, sessionmaker

DATABASE_URL = f"sqlite:///{os.getenv('DB_PATH', '/data/audit.db')}"

engine = create_engine(DATABASE_URL, connect_args={"check_same_thread": False})
SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
Base = declarative_base()


class RebootLog(Base):
    __tablename__ = "reboot_log"

    id = Column(Integer, primary_key=True, index=True)
    timestamp = Column(DateTime, default=datetime.datetime.utcnow, nullable=False)
    username = Column(String, nullable=False)
    user_email = Column(String, nullable=False)
    ap_name = Column(String, nullable=False)
    ap_mac = Column(String, nullable=False)
    ap_ip = Column(String, nullable=True)
    result = Column(String, nullable=False)  # "success" | "error"
    error_message = Column(String, nullable=True)


def init_db():
    Base.metadata.create_all(bind=engine)


def get_db():
    db = SessionLocal()
    try:
        yield db
    finally:
        db.close()