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#!/bin/sh
puts () {
printf %s "$1"
}
escape () {
printf %s "$1" | sed -e 's*\\*\\\\*g' -e 's!"!\\"!g'
}
block_basic () {
printf '{"full_text":"%s"},' "$1"
}
block_color () {
printf '{"full_text":"%s","color":"%s"},' "$1" "$2"
}
BDIR=/sys/class/power_supply/BAT0
# header
printf '%s\n' '{"version":1}'
puts '['
while true; do
puts '['
volinfo="$(amixer get Master | grep 'Mono:')"
vol_level="$(printf %s "$volinfo" | awk -F'[][]' '{print $2}')"
vol_enabled="$(printf %s "$volinfo" | awk -F'[][]' '{print $6}')"
color="#ffffff"; bl=""; br=""
[ "$vol_enabled" = "off" ] && { color="#ffff00"; bl="("; br=")"; }
block_color "vol $bl$vol_level$br" "$color"
bat_status="$(cat $BDIR/status | tr 'a-z' 'A-Z' | head -c 3)"
bat_level="$(cat $BDIR/capacity)"
color="#ffffff"
if [ "$bat_level" -le 10 ]; then
color="#ff0000"
elif [ "$bat_level" -le 25 ]; then
color="#ffff00"
fi
block_color "$bat_status $bat_level%" "$color"
date="$(date +'%a %Y-%m-%d %H:%M:%S')"
block_basic "$date"
puts '],'
sleep 1
done
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