from flask import Flask, request, jsonify
import json
import os

app = Flask(__name__)

DATA_FILE = 'data.json'

@app.route('/callback', methods=['POST'])
def callback():
    data = request.json

    if not data:
        return jsonify({"error": "Invalid data"}), 400

    # Read existing data
    if os.path.exists(DATA_FILE):
        with open(DATA_FILE, 'r') as f:
            stored_data = json.load(f)
    else:
        stored_data = []

    # Append new data
    stored_data.append(data)

    # Write data back to file
    with open(DATA_FILE, 'w') as f:
        json.dump(stored_data, f, indent=4)

    return 'Callback received', 200

@app.route('/data', methods=['GET'])
def get_data():
    if os.path.exists(DATA_FILE):
        with open(DATA_FILE, 'r') as f:
            stored_data = json.load(f)
    else:
        stored_data = []

    return jsonify(stored_data)

if __name__ == '__main__':
    app.run(host='0.0.0.0', port=5000)