from sqlalchemy import Column, String, DateTime, Integer
from app.extensions import db

class Session(db.Model):
    __tablename__ = 'sessions'
    __bind_key__ = 'eco'

    id = Column(Integer, primary_key=True)
    session_id = Column(String(50), unique=True, nullable=False)
    customer_id = Column(String(9), nullable=True)
    account_id = Column(String(10), nullable=True)
    msisdn = Column(String(15), nullable=False)
    channel = Column(String(10), nullable=False) 
    expires_at = Column(DateTime, nullable=False)
    status = Column(String(20), default='ACTIVE') 
    
    def __repr__(self):
        return f"<Session(id={self.id}, session_id={self.session_id}, status={self.status})>"