from sqlalchemy import Column, String, DateTime, ForeignKey
from sqlalchemy.dialects.postgresql import UUID
from uuid import uuid4
from datetime import datetime
from ..database import Base


class Session(Base):
    __tablename__ = "sessions"

    id = Column(UUID(as_uuid=True), primary_key=True, default=uuid4)
    user_id = Column(UUID(as_uuid=True), ForeignKey("users.id", ondelete="CASCADE"), nullable=False, index=True)
    refresh_token = Column(String(255), unique=True, nullable=False)
    expires_at = Column(DateTime(timezone=True), nullable=False, index=True)
    created_at = Column(DateTime(timezone=True), default=datetime.utcnow)
    ip_address = Column(String(45))
    user_agent = Column(String(500))