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| -rw-r--r-- | README.rst | 4 | ||||
| -rw-r--r-- | gondul.py | 66 | ||||
| -rw-r--r-- | main.py | 49 |
3 files changed, 119 insertions, 0 deletions
diff --git a/README.rst b/README.rst new file mode 100644 index 0000000..7ea2815 --- /dev/null +++ b/README.rst @@ -0,0 +1,4 @@ +TG label scripts +================ + +Scripts. diff --git a/gondul.py b/gondul.py new file mode 100644 index 0000000..65c18fa --- /dev/null +++ b/gondul.py @@ -0,0 +1,66 @@ +import base64 +import json +import os +import re +import urllib.parse +import urllib.request + +GONDUL_USERNAME = os.getenv("GONDUL_USERNAME", "") +GONDUL_PASSWORD = os.getenv("GONDUL_PASSWORD", "") +GONDUL_API = os.getenv("GONDUL_API", "https://tg18.gondul.gathering.org/api") +GONDUL_SWITCHES_ENDPOINT = os.getenv( + "GONDUL_SWITCHES_ENDPOINT", "/public/switches") + + +def _generate_credentials(username, password): + return base64.standard_b64encode( + (username + ":" + password) + .encode("utf-8")).decode("utf-8") + + +def _do_switches_request( + api=GONDUL_API, + endpoint=GONDUL_SWITCHES_ENDPOINT, + credentials=_generate_credentials(GONDUL_USERNAME, GONDUL_PASSWORD)): + switches_url = api + endpoint + + # Build request + request = urllib.request.Request(switches_url) + request.add_header("Authorization", "Basic " + credentials) + resp = urllib.request.urlopen(request, timeout=5) + assert resp.status == 200, "HTTP return was not 200 OK" + + # Read response + body = resp.read().decode("utf-8") + data = json.loads(body) + assert "switches" in data, "Missing switches object from HTTP response" + + switches = data.get("switches") + print("Found {} switches in Gondul".format(len(switches))) + return switches + + +def _match_switches(switches, match="^e(.*)"): + pattern = re.compile(match) + + included_switches = [] + for switch in switches: + include = re.search(pattern, switch) + if include: + included_switches.append(switch) + + print("'{}' matches {} switches.".format(match, len(included_switches))) + return included_switches + + +def _sort_switches(switches): + # The lambda returns two values to compare on; + # * The switch number (e77-4) - picks out the number 77 + # * The number of the switch in relation to other switches on the same row + # E.g. "e77-4" will return 4 + return sorted(switches, key=lambda x: (int(x[1:].split("-")[0]), x.split("-")[1])) + + +def fetch_gondul_switches(match="^e(.*)"): + # credentials = _generate_credentials() + return _sort_switches(_match_switches(_do_switches_request())) @@ -0,0 +1,49 @@ +from gondul import fetch_gondul_switches + +switch_label_format = "%(switch_name)s-%(switch_num)s" +switch_label_layout = """<!DOCTYPE html> +<html><head> + <style> + div.a4 { + font-size: 24em; + text-align: center; + @page size: A4 landscape; + + /* this is the part that makes each div print per page. */ + page-break-after: always; + } + </style> +</head> +<body>%s</body></html> +""" +switch_label_page = '<div class="a4">%s</div>' + + +def generate_label(switch_name, switch_number): + return switch_label_page % switch_label_format % { + "switch_name": switch_name, + "switch_num": switch_number, + } + + +def generate_labels(switches): + labels = list(map(lambda switch: generate_label( + switch[1:].split("-")[0], switch.split("-")[1]), switches)) + + return switch_label_layout % "".join(labels) + + +def write_html_to_file(html, outfile="switch_labels.html"): + with open(outfile, "w") as f: + f.write(html) + print("Wrote labels to '{}'.\nOpen the file in your browser and print it.".format(outfile)) + + +def make_switch_labels(): + switches = fetch_gondul_switches() + labels = generate_labels(switches) + write_html_to_file(labels) + + +if __name__ == "__main__": + make_switch_labels() |