#!/usr/bin/python3

from celery import Celery
from celery.backends import sqlalchemy
from datetime import datetime
from flask import Flask
import requests
from sqlalchemy import create_engine, Column, Integer, String, DateTime
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.orm import sessionmaker

# create a Flask app
app = Flask(__name__)

# create a Celery app and configure it to use the sqlalchemy backend and the SQLite database specified by the broker_url
celery_app = Celery('tasks')
celery_app.conf.update(
    result_backend='sqlalchemy',
    broker_url='sqlite:///celery.db',
    task_serializer='json',
    result_serializer='json',
)

# define the get_public_ip Celery task (as in the previous example)
@celery_app.task
def get_public_ip():
    response = requests.get('https://ifconfig.me/ip')
    return response.text

# create an SQLAlchemy base class
Base = declarative_base()

# define an IPHistory model that will be used to store IP addresses and timestamps in the database
class IPHistory(Base):
    __tablename__ = 'ip_history'

    id = Column(Integer, primary_key=True)
    ip_address = Column(String)
    timestamp = Column(DateTime, default=datetime.now)

# create a database engine and connect to the ip_history.db database
engine = create_engine('sqlite:///ip_history.db')
Base.metadata.create_all(engine)

# create a session object that will be used to add records to the database
Session = sessionmaker(bind=engine)
session = Session()

# define a Flask route that returns the current public IP address
@app.route('/public_ip')
def public_ip():
    # call the get_public_ip task and wait for it to complete
    ip_address = get_public_ip.delay().get()

    # create a new IPHistory record and add it to the database
    record = IPHistory(ip_address=ip_address)
    session.add(record)
    session.commit()

    # return the current IP address as the response
    return ip_address

if __name__ == '__main__':
    app.run()