from flask import Flask, render_template
from flask_socketio import SocketIO, emit
from flask_sse import sse

from threading import Thread
import subprocess



from flask import Flask, render_template
from flask_sse import sse
from threading import Thread
import subprocess

app = Flask(__name__)
app.config['REDIS_URL'] = 'redis://localhost'
app.register_blueprint(sse, url_prefix='/stream')

# Background thread to run the long-running task
def run_long_running_task():
    process = subprocess.Popen(['python', 'localcache.py', '23'],
                               stdout=subprocess.PIPE,
                               stderr=subprocess.STDOUT,
                               universal_newlines=True)
    for line in process.stdout:
        # Emit the output line as a server-sent event
        sse.publish({'data': line.strip()}, type='output')
    process.wait()

@app.route('/')
def index():
    return render_template('myweb.html')

@app.route('/start')
def start_task():
    # Start the long-running task in a background thread
    thread = Thread(target=run_long_running_task)
    thread.start()
    return 'Task started'

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




'''
app = Flask(__name__)
app.config['SECRET_KEY'] = 'secret_key'
socketio = SocketIO(app)

# Background process to run the long-running task
def run_long_running_task():
    process = subprocess.Popen(['python', 'localcache.py', '23'],
                               stdout=subprocess.PIPE,
                               stderr=subprocess.STDOUT,
                               universal_newlines=True)
    for line in process.stdout:
        # Emit the output line to the client
        socketio.emit('output', {'data': line.strip()})
        print(f"Sent: {line.strip()}")
    print("Process is done")
    process.wait()

@app.route('/')
def index():
    return render_template('myweb.html')

@socketio.on('connect')
def on_connect():
    # Start the long-running task when a client connects
    thread = Thread(target=run_long_running_task)
    thread.start()

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