televex/print/start.py

# https://github.com/python-escpos/python-escpos
# https://python-escpos.readthedocs.io/en/latest/

import flask
from flask import request
import flask_apscheduler
import urllib, json
from escpos import printer
from tools.televex import televex

# Create the application.
APP = flask.Flask(__name__)

# Set up a JSON database for storing printed items
db_path = 'printed.json'
db = televex.database(db_path)

# Connect to the printer
lp = televex.connect()

# Check the Multifeeder regulary (every 10 min)
# https://github.com/viniciuschiele/flask-apscheduler
# Thanks Crunk for pointing to this extention!
scheduler = flask_apscheduler.APScheduler()
scheduler.api_enabled = False
scheduler.init_app(APP)
scheduler.start()

@scheduler.task('interval', id='check', minutes=1)
def check():
	try:
		url = 'https://multi.vvvvvvaria.org/API/latest/3'
		response = urllib.request.urlopen(url).read()
		feed = json.loads(response)
	except:
		feed = []

	for post in feed:
		source = post['feed_details']['rss']

		# only print toots for now (this is a test)
		if 'post.lurk.org' in source:
			txt, date = televex.preprocess(post, type='rss')
			already_in_db = televex.update_db(db, db_path, txt, source, date)
			if already_in_db == False:
				televex.print_now(txt, lp=lp, type='rss')

@APP.route('/', methods=['GET'])
def index():
	return flask.render_template('index.html')

@APP.route('/print/', methods=['GET', 'POST'])
def print():
	txt = request.args.get('printing', '')
	img = request.files.get('img')

	if txt:
		source = 'TeleVex'
		txt, date = televex.preprocess(txt, type='txt')
		televex.update_db(db, db_path, txt, source, date)
		televex.print_now(txt, lp=lp, type='txt')
		return flask.redirect(flask.url_for('print'))
	elif img:
		source = 'TeleVex'
		img, date = televex.preprocess(img, type='img')
		televex.update_db(db, db_path, 'IMAGE', source, date)
		televex.print_now(img, lp=lp, type='img')
		return flask.redirect(flask.url_for('print'))

	return flask.render_template('print.html')

@APP.route('/printed/', methods=['GET'])
def printed():
	db = televex.database(db_path)
	return flask.render_template('printed.html', items=db)

if __name__ == '__main__':
	APP.debug=True
	APP.run(port=5000)