#!/bin/sh

if [ -z $DISPLAY ]; then
    HEART='B'
    WIFI='W'
    THERM='T'
else
    HEART=' '
    WIFI='直'
    THERM=' '
fi
    MAIL='@'

if [ -d /sys/class/power_supply/BAT0 ]; then
    battery_info="$(head -n 1 /sys/class/power_supply/BAT0/capacity)%"
    current_charge=$(echo "$battery_info" | grep -o '[0-9]\+%' | awk '{sub (/%/, "", $1); print $1}')
    printf '#[fg=colour123] %s' "$HEART $current_charge"
fi

unread="$(find "$XDG_DATA_HOME"/mail/*/[Ii][Nn][Bb][Oo][Xx]/new/* -type f | wc -l 2>/dev/null)"
if [ "$unread" -gt 0 ]; then
    printf ' %s' "$MAIL$unread"
fi

if [ "$(cat /sys/class/net/w*/operstate)" = up ]; then
    net="$(awk '/^\s*w/ { print int($3 * 100 / 70) }' /proc/net/wireless)"
    printf '#[fg=colour184] %s' "$WIFI$net"
fi

temp="$(sensors | awk '(/Core 0/){printf $3}' | sed 's/\.0//; s/+//')"
printf '#[fg=default] %s' "$THERM$temp"