#! /bin/zsh
#
# this file:
#   https://dataswamp.org/~incal/scripts/speed
#
# original script:
#   https://dataswamp.org/~solene/2021-07-19-simple-scripts.html
#
# usage:
#   $ watch -n 1 -t speed
#
# example output:
#   _______________¯_________________________¯_________________________________
#   __________________________________________________¯________________________
#   _____________________________________________N___________________¯_________
#
# screenshot:
#   https://dataswamp.org/~incal/figures/speed.png (592 bytes)

data_dir=/tmp/speed-data
mkdir -p $data_dir

data=${data_dir}/speed
bar=${data_dir}/bar

dig srv.dataswamp.org @9.9.9.9 +timeout=1 > $data

if [[ $? = 0 ]]; then
    echo -n $(awk '/Query time/{
                if ( $4 <  60)              { print "_"; }
                if ( 60 <= $4 && $4 <= 150) { print "-"; }
                if (150 <  $4)              { print "¯"; }
        }' $data) >> $bar
else
    echo -n "N" >> $bar
fi

echo $(cat $bar)