service

#!/usr/bin/python3
from time import sleep, time
from datetime import date
from requests import Session
import json
import shutil
import os

URL = "https://www.chaosdorf.de/~ytvwld/freitagsfoo.json"
LOADING_DATA = {
    "hosts": ["..."],
    "date": str(date.today()),
    "talks": [{
        "title": "...",
        "description": "...",
        "persons": [],
    }]
}
FILENAME = "freitagsfoo.json"
FOLDERS_TO_WRITE = (".", "talks_screen", "title_screen", "next_screen")


def save_bytes(content):
    curr_time = time()
    filename = "freitagsfoo-%s.json" % str(curr_time)
    f = open(filename, "wb")
    f.write(content)
    f.close()
    for folder in FOLDERS_TO_WRITE:
        shutil.copy(filename, "{}/{}".format(folder, FILENAME))
    os.remove(filename)


def break_up_text(text: str) -> str:
    lines = []
    for line in text.splitlines():
        lines += break_up_line(line)
    return "\n".join(lines)


def break_up_line(line: str) -> list:
    lines = []
    curr_line = ""
    words = line.split(" ")
    while words:
        for word in words[:]:
            speculative_line = curr_line + " " + word
            if len(speculative_line) >= 50:
                lines.append(curr_line)
                curr_line = ""
                break
            words.pop(0)
            curr_line = speculative_line
        else:
            lines.append(curr_line)
    return lines


save_bytes(json.dumps(LOADING_DATA).encode())

session = Session()
while True:
    data = session.get(URL).json()
    for talk in data["talks"]:
        talk["description"] = break_up_text(talk["description"])
    save_bytes(json.dumps(data, ensure_ascii=False).encode())
    sleep(60)