iso7010print/main.py

import os
import sqlite3
import json
from quart import Quart, render_template, websocket, request, redirect, send_from_directory
import re
import requests
import subprocess
from io import UnsupportedOperation

app = Quart(__name__)
app.config['TEMPLATES_AUTO_RELOAD'] = True
headers = {
    'User-Agent': 'iso7010print/0.0.1',
}

defs = {
    "Official ISO7010": "warns.json",
    "Unofficial": "custom.json",
}

def load_things():
    out = dict()
    for section, fname in defs.items():
        with open(fname) as f:
            out[section] = sorted(json.load(f), key=lambda e: e["name"])
    return out

things = load_things()

indexed = {w["name"]: w for kj in things.values() for w in kj}

db = sqlite3.connect("counts.db")
cur = db.cursor()
cur.execute("CREATE TABLE IF NOT EXISTS counts(what TEXT UNIQUE, count INTEGER)")

def get_db():
    db = sqlite3.connect("counts.db")
    cur = db.cursor()
    cur.execute("CREATE TABLE IF NOT EXISTS counts(what TEXT UNIQUE, count INTEGER)")
    return db

@app.route("/", methods=["GET"])
async def home():
    cur = get_db().cursor()
    counts = {c[0]: c[1] for c in cur.execute("select what, count from counts").fetchall()}
    return await render_template("index.html", ws=things, counts=counts)

@app.route('/static/<path:path>')
def staticfile(path):
    return send_from_directory('static', path)

def printit(filename):
    subprocess.run(f"brother_ql -b pyusb -p usb://0x04f9:0x2042 -m QL-700 print -l62 {filename}", shell=True, check=True)

@app.route("/", methods=["POST"])
async def print():
    w = (await request.form)["w"]
    thewarn = indexed[w]
    if not thewarn["url"].startswith("http"):
        # it's local
        filename = thewarn["url"].removeprefix("/")
        lol = thewarn["name"]
        png_filename = f"{lol.replace(' ', '_')}.png"
    else:
        filename = thewarn["url"].split("/")[-1]
        lol = re.search('W\d+', filename)[0]
        png_filename = f"{lol}.png"
    quad_png_filename = f"{lol}_quad.png"
    if not os.path.exists(filename):
        r = requests.get(thewarn["url"], headers=headers)
        r.raise_for_status()
        with open(filename, "wb") as file:
            file.write(r.content)
    if not os.path.exists(png_filename):
        subprocess.run(f"resvg {filename} {png_filename}", shell=True, check=True)
        subprocess.run(f"convert {png_filename} -resize 696x -background white -alpha remove -alpha off -monochrome -threshold 20% {png_filename}", shell=True, check=True)
    #if not os.path.exists(quad_png_filename):
    #    subprocess.run("magick -size 696x xc:white ({png_filename} -resize 50%x)
    printit(png_filename)
    cur.execute("""INSERT OR REPLACE INTO counts(what, count)
     VALUES (:what,
       COALESCE(
         (SELECT count FROM counts
            WHERE what=:what),
         0) + 1);
    """, dict(what=lol))
    db.commit()

    return redirect("/")
if __name__ == "__main__":
    app.run()