#! /usr/local/bin/zsh
#
# this file:
#   https://dataswamp.org/~incal/sth/scripts/elem
#
# weather service:
#   https://github.com/chubin/wttr.in/blob/master/README.md
#
# script example run:
#   $ elem Uppsala
#   Uppsala -3C 86% →7km/h (1.9m/s) 1010hPa
#   {05:24 ↑06:08 12:52 ↓19:37 20:22} overcast

[[ $# != 1 ]] && exit

if [[ $1 == "help" ]]; then
    echo "weather in CITY. output: location temperature relative-humidity [precipitation] wind-direction/speed pressure dawn-sunrise-zenit-sunset-dusk summary"
    exit
fi

city=$1

windmsmark="WINDMS"

wttr_url="https://wttr.in"
opts="%l+%t+%h+%p+%w+($windmsmark)+%P+\{%D+↑%S+%z+↓%s+%d\}+%C"
frmt="format=${opts}\n"

wind_url="${wttr_url}/${city}?format=%w\n"
wind=$(curl -s $wind_url)
windonly=${wind//[^0-9]/}

typeset -F1 windms=$(units "$windonly kilometers/hour" "meters/second" | awk '/\*/{ print $2 }')

url="${wttr_url}/${city}?${frmt}"
urlms=${url/$windmsmark/${windms}m/s}

done=$(curl -s $urlms | sed -e '
s/ shower//;
s/0.0mm //;
s/\[0km\/h 0.00m\/s\] //;
s/Clear/clear/;
s/Drizzle/drizzle/;
s/Fog/fog/;
s/Freezing/freezing/;
s/Haze/haze/;
s/Heavy/heavy/;
s/Light/light/;
s/Mist/mist/;
s/Moderate/moderate/;
s/Overcast/overcast/;
s/Partly/partly/;
s/Patches/patches/;
s/Patchy/patchy/;
s/Rain/rain/;
s/Shower/shower/;
s/Snow/snow/;
s/Sunny/sunny/;
s/°//g')

donenosecs=${done//:[0-5][0-9] / }

final=${donenosecs//:[0-5][0-9]\}/\}}

if [[ $final != '' && $final[1] != $'\n' ]]; then
    echo $final
else
    echo "out of queries"
fi