#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
Created on Wed May 20 12:52:00 2026
@author: angoosh
"""
from flask import Flask, render_template_string, redirect, url_for
import sqlite3
app = Flask(__name__)
DB_FILE = '/db/counter.db'
def init_db():
"""Initialize the database and set the starting number to 0 if it doesn't exist."""
with sqlite3.connect(DB_FILE) as conn:
c = conn.cursor()
# Create a table to hold our counter
c.execute('CREATE TABLE IF NOT EXISTS counter (id INTEGER PRIMARY KEY, value INTEGER)')
# Check if the counter row already exists
c.execute('SELECT value FROM counter WHERE id = 1')
if c.fetchone() is None:
# If not, insert the initial value of 0
c.execute('INSERT INTO counter (id, value) VALUES (1, 0)')
conn.commit()
# HTML & CSS template
# The CSS handles making the button blue and centering the layout
HTML_TEMPLATE = '''
Counter
{{ count }}
'''
@app.route('/')
def index():
"""Fetch the current count from the database and display it."""
with sqlite3.connect(DB_FILE) as conn:
c = conn.cursor()
c.execute('SELECT value FROM counter WHERE id = 1')
current_count = c.fetchone()[0]
return render_template_string(HTML_TEMPLATE, count=current_count)
@app.route('/increment', methods=['POST'])
def increment():
"""Add 1 to the database value and refresh the page."""
with sqlite3.connect(DB_FILE) as conn:
c = conn.cursor()
c.execute('UPDATE counter SET value = value + 1 WHERE id = 1')
conn.commit()
# Redirect back to the main page to see the updated number
return redirect(url_for('index'))
if __name__ == '__main__':
# Initialize the database before starting the server
init_db()
# Run the app in debug mode
app.run(host='0.0.0.0', port=5000, debug=True)