from sqlalchemy import Column, String, Boolean, DateTime, DECIMAL, ForeignKey
from sqlalchemy.sql import func
from app.core.database.db_session import Base

class UserSession(Base):
    __tablename__ = "user_sessions"

    session_id = Column(String(26), primary_key=True)
    user_id = Column(String(26), ForeignKey("users.user_id", ondelete="CASCADE"), nullable=False)
    device_name = Column(String(100), nullable=True)
    device_type = Column(String(30), nullable=True)
    browser = Column(String(50), nullable=True)
    operating_system = Column(String(50), nullable=True)
    ip_address = Column(String(45), nullable=False)
    
    latitude = Column(DECIMAL(9, 6), nullable=True)
    longitude = Column(DECIMAL(9, 6), nullable=True)
    location_name = Column(String(150), nullable=True)
    device_fingerprint = Column(String(255), nullable=True)

    refresh_token = Column(String(255), unique=True, nullable=False)
    access_token_id = Column(String(255), nullable=False)
    expires_at = Column(DateTime, nullable=False)
    last_activity = Column(DateTime, server_default=func.now(), onupdate=func.now())
    is_active = Column(Boolean, default=True)
    created_at = Column(DateTime, server_default=func.now())