from sqlalchemy import Column, Integer, String, LargeBinary, DateTime, Text, ForeignKey
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.orm import relationship
from datetime import datetime
from app.core.config import settings
from app.database.connection import engine

Base=declarative_base()

class Patient(Base):
    __tablename__ = "patients"

    id = Column(Integer, primary_key=True, index=True)
    username = Column(String(100))
    email = Column(String(255), unique=True)
    password = Column(String(255))
    city = Column(String(100))
    state = Column(String(100))
    country = Column(String(100))
    tumor_type = Column(String(100))
    mri_image = Column(LargeBinary)
    created_at = Column(DateTime, default=datetime.utcnow)


class ChatMessage(Base):
    __tablename__ = "chat_messages"

    id = Column(Integer, primary_key=True, index=True)
    patient_id = Column(Integer, ForeignKey("patients.id", ondelete="CASCADE"))
    patient_query = Column(Text)
    bot_response = Column(Text)
    timestamp = Column(DateTime, default=datetime.utcnow)





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


# if __name__ == "__main__":
#     create_tables()
#     print("Tables created successfully")