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from sqlalchemy import Column, Integer, String, Text, DateTime, ForeignKey
from sqlalchemy.orm import relationship
from datetime import datetime
from database import Base

class User(Base):
    __tablename__ = "users"

    id = Column(Integer, primary_key=True, index=True)
    username = Column(String, unique=True, index=True)
    email = Column(String, unique=True, index=True)
    hashed_password = Column(String)
    role = Column(String)
    mobile_number = Column(String, nullable=True)
    reset_token = Column(String, nullable=True)
    question_count = Column(Integer, default=0)
    
    # Relationship to chat interactions
    interactions = relationship("ChatInteraction", back_populates="user")

class ChatInteraction(Base):
    __tablename__ = "chat_interactions"
    
    id = Column(Integer, primary_key=True, index=True)
    user_id = Column(Integer, ForeignKey("users.id"), nullable=True)
    case_id = Column(String, nullable=True)
    role = Column(String, index=True, nullable=False)  # Role context for this interaction
    query = Column(Text)
    response = Column(Text)
    created_at = Column(DateTime, default=datetime.utcnow)
    
    # Relationship to user
    user = relationship("User", back_populates="interactions")