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feat(makanek): upgrade praesenzlehre to timer

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This commit is contained in:
Kierán Meinhardt
2021-02-18 17:15:07 +01:00
parent 8b5bfd236d
commit 2a5ea9700b
1 changed files with 27 additions and 13 deletions
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40
systems/makanek/configuration.nix
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@@ -66,29 +66,43 @@ in
environment.systemPackages = [ pkgs.vim pkgs.git pkgs.tmux ];
systemd.services.praesenzlehre = {
description = "Live Ticker zu praesenzlehre-berlin.de";
after = [ "network.target" ];
description = "Live Ticker zu praesenzlehre-berlin.org";
wants = [ "network.target" ];
wantedBy = [ "multi-user.target" ];
path = [ pkgs.curl pkgs.pup ];
startAt = "*:00/15";
path = [ pkgs.curl pkgs.pup pkgs.bc ];
environment.BOT_TOKEN = lib.strings.fileContents <system-secrets/telegram/kmein.token>;
script = ''
set -efu
count_file=/tmp/praesenzlehre-berlin.org
set_count() {
echo $* > "$count_file"
}
get_count() {
cat "$count_file"
}
notify() {
curl -sSL -X POST -H 'Content-Type: application/json' \
-d "{\"chat_id\": \"@praesenzlehre_berlin\", \"text\": \"$*\"}" \
"https://api.telegram.org/bot$BOT_TOKEN/sendMessage"
}
count=0
test -f "$count_file" || set_count 0
while true; do
new_count="$(curl -sSL https://praesenzlehre-berlin.org/ | pup '.dk-speakout-signature-count span text{}')"
if [ "$new_count" -gt "$count" ]; then
echo "$new_count"
notify "$new_count Unterzeichner:innen!"
count="$new_count"
fi
sleep 300
done
count="$(get_count)"
new_count="$(curl -sSL https://praesenzlehre-berlin.org/ | pup '.dk-speakout-signature-count span text{}')"
if [ "$new_count" -gt "$count" ]; then
diff="$(echo "$new_count - $count" | bc)"
echo "$new_count (+ $diff)"
notify "$new_count Unterzeichner:innen! (+ $diff)"
set_count "$new_count"
fi
'';
};
}