from flask import Flask, request
import sqlite3

# Create a Flask app and set up the API endpoint
app = Flask(__name__)

@app.route('/dump_db', methods=['GET'])
def dump_db():
    # Connect to the SQLite database
    conn = sqlite3.connect('database.db')
    cursor = conn.cursor()

    # Retrieve the data from the database
    cursor.execute('SELECT * FROM price_data')
    rows = cursor.fetchall()

    # Format the data as a JSON document
    data = {
        'timestamp': [row[0] for row in rows],
        'value': [row[1] for row in rows],
        'symbol': [row[2] for row in rows],
        'source': [row[3] for row in rows],
    }

    # Check if a timestamp was provided in the request
    timestamp = request.args.get('timestamp')
    if timestamp:
        # Filter the data to only include rows with a timestamp greater than or equal to the provided value
        data = {k: [v for i, v in enumerate(v) if data['timestamp'][i] >= timestamp] for k, v in data.items()}

    # Return the data as a JSON response
    return data

# Run the app
if __name__ == '__main__':
    app.run()