aachen.de corona incidence tracker matrix bot

#!/usr/bin/env bash

[ -f .last-execution ] && last="$(<.last-execution)"
[ -f .lastscore ] && tendency="$(<.lastscore)"
[ -f .highscore ] && highscore="$(<.highscore)"
#[ -f .last-page ] && last-page="$(<.last-page)"
[[ "$last" != "" ]] || last="$(LC_ALL=de_DE.utf8 date +'%A, %-d. %B %Y') -d'yesterday'"
[[ "$tendency" != "" ]] || tendency=0
[[ "$highscore" != "" ]] || highscore=0

today="$(LC_ALL=de_DE.utf8 date +'%A, %-d. %B %Y')"
#if [[ "$last" == "$today" ]]
#then
#       echo "quitting: heute schon gesendet"
#       exit 0
#fi
site="https://www.aachen.de/DE/stadt_buerger/notfall_informationen/corona/aktuelles/index.html"

wholepage="/tmp/corona_neu"
curl -s -L --output "$wholepage" "$site"
if diff ".last-page" "$wholepage" > /dev/null 2>&1
then
        echo "quitting: seite nicht aktualisiert"
        exit 0
else
        mv "$wholepage" ".last-page"
fi
updated=$(curl -s -L "$site" 2>/dev/null | tr -d '\r' | grep -E "Aktuelle Lage.+(Montag|Dienstag|Mittwoch|Donnerstag|Freitag|Samstag|Sonntag)" | sed 's/.*Aktuelle Lage Stadt und St&auml;dteRegion Aachen zum Corona-Virus, \(.\+ 202[0-9]\).*/\1/g')
echo "updated: $updated"

incidence=$(curl -s -L "$site" 2>/dev/null | tr -d '\r' | grep 'RKI.\+weist.\+Inzidenz.\+aus' | sed 's%<[^>]*>%%g')
echo "incidence"
echo "$incidence"
score=$(echo "$incidence" | sed 's/.*Das .*RKI.\+ Inzidenz von \([0-9.]\+\) aus\. Die Sieben-Tage-Inzidenz des Landes liegt bei [0-9.]\+\..*/\1/' | sed 's/\.//g')
echo "score"
echo "$score"
aachen=$(echo "$incidence" | sed 's/.*\(Das .*RKI.\+ Inzidenz von [0-9.]\+ aus\)\. Die Sieben-Tage-Inzidenz des Landes liegt bei [0-9.]\+\..*/\1/')
nrw=$(curl -s -L "$site" 2>/dev/null | tr -d '\r' | grep 'Inzidenz des Landes' |sed 's/.*\(Die Sieben-Tage-Inzidenz des Landes liegt bei [0-9.]\+\.\).*/\1/')

if [[ "$last" == "$updated" ]] && [ "$tendency" -eq "$score" ]
then
        echo "quitting: zahlen nicht aktualisiert"
        exit 0
fi

links="<a href=\"$site\">aachen.de/corona</a> | <a href=\"https://www.staedteregion-aachen.de/de/navigation/aemter/oeffentlichkeitsarbeit-s-13/aktuelles/pressemitteilungen/aktuelle-pressemitteilungen/coronavirus\">staedteregion-aachen.de/corona</a> | <a href=\"https://oecher.info\">oecher.info</a> | <a href=\"https://experience.arcgis.com/experience/478220a4c454480e823b17327b2bf1d4/page/page_1/\">RKI dashboard</a> | <a href=\"https://covid-karte.de\">covid-karte</a> | <a href=\"https://impfdashboard.de\">impfdashboard.de</a>"

#echo "today"
#echo "$today"
#echo "page today"
#echo "$page" | grep "$today"
#echo "nrw"
#echo "$nrw"
if [[ "$updated" != "" ]]
then
#       updated="$(echo "$updated" | sed 's/.*\('"$today"'.*\)$/\1/')"
        aachen="$(echo "$aachen" | awk -v awkfrom="heute" -v awkto="heute, $updated," '{gsub(awkfrom,awkto); print}')"
        echo "$score" > .lastscore
        incidence="${aachen} (war: ${tendency}). "
        if [ "$tendency" -lt "$score" ]
        then
                incidence="${incidence}📈"
        elif [ "$tendency" -eq "$score" ]
        then
                incidence="${incidence}"
        else
                incidence="${incidence}📉"
        fi
        if [ "$score" -gt "$highscore" ]
        then
                incidence="${incidence}<br>🎰 <strong>High Score!</strong> ✨ (war: ${highscore})"
                echo "$score" > .highscore
        fi
        if [[ "$aachen" == "" ]]
        then
                incidence="(Sieht aus als sei die Website der Stadt ausnahmsweise mal kaputt.)"
        fi
        incidence="${incidence}<br>${nrw}"
        echo "$today" > .last-execution
#       echo "$wholepage" > .last-page
#       echo "$incidence"
        apprise -b "${incidence}<br>${links}" 'matrixs://apprise:$password@example.org/$room'
fi