import flask
import string
import threading

app = flask.Flask(__name__)

@app.route('/set/<int:task>')
def set_task(task):
    app.port.write(string.uppercase[task])
    return flask.redirect('/')

@app.route('/clear/<int:task>')
def clear_task(task):
    app.port.write(string.lowercase[task])
    return flask.redirect('/')

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

def init(ser):
    app.port = ser

    app.th = threading.Thread(target=app.run, kwargs={
        'host': '0.0.0.0'
    })
    app.th.daemon = True
    app.th.start()