sxmo-utils/scripts/core/sxmo_statusbar.sh

#!/usr/bin/env sh

# include common definitions
# shellcheck source=scripts/core/sxmo_common.sh
. "$(dirname "$0")/sxmo_common.sh"

trap "update" USR1
pgrep -f sxmo_statusbar.sh | grep -v $$ | xargs -r kill -9

update() {
	# In-call.. show length of call
	CALLINFO=" "
	if pgrep -f sxmo_modemcall.sh; then
		NOWS="$(date +"%s")"
		CALLSTARTS="$(date +"%s" -d "$(
			grep -aE 'call_start|call_pickup' "$XDG_DATA_HOME"/sxmo/modem/modemlog.tsv |
			tail -n1 |
			cut -f1
		)")"
		CALLSECONDS="$(echo "$NOWS" - "$CALLSTARTS" | bc)"
		CALLINFO=" ${CALLSECONDS}s "
	fi

	# W symbol if wireless is connect
	WIRELESS=""
	WLANSTATE="$(tr -d "\n" < /sys/class/net/wlan0/operstate)"
	if [ "$WLANSTATE" = "up" ]; then
		WIRELESS=" "
	fi

	# M symbol if modem monitoring is on & modem present
	MODEMMON=""
	pgrep -f sxmo_modemmonitor.sh && MODEMMON=""

	# Battery pct
	PCT="$(cat /sys/class/power_supply/*-battery/capacity)"
	BATSTATUS="$(
		cat /sys/class/power_supply/*-battery/status |
		cut -c1
	)"
    if [ "$BATSTATUS" = "C" ]; then
        if [ "$PCT" -lt 20 ]; then
            BATSTATUS=""
        elif [ "$PCT" -lt 30 ]; then
            BATSTATUS=""
        elif [ "$PCT" -lt 40 ]; then
            BATSTATUS=""
        elif [ "$PCT" -lt 60 ]; then
            BATSTATUS=""
        elif [ "$PCT" -lt 80 ]; then
            BATSTATUS=""
        elif [ "$PCT" -lt 90 ]; then
            BATSTATUS=""
        else
            BATSTATUS=""
        fi
    else
        if [ "$PCT" -lt 10 ]; then
            BATSTATUS=""
        elif [ "$PCT" -lt 20 ]; then
            BATSTATUS=""
        elif [ "$PCT" -lt 30 ]; then
            BATSTATUS=""
        elif [ "$PCT" -lt 40 ]; then
            BATSTATUS=""
        elif [ "$PCT" -lt 50 ]; then
            BATSTATUS=""
        elif [ "$PCT" -lt 60 ]; then
            BATSTATUS=""
        elif [ "$PCT" -lt 70 ]; then
            BATSTATUS=""
        elif [ "$PCT" -lt 80 ]; then
            BATSTATUS=""
        elif [ "$PCT" -lt 90 ]; then
            BATSTATUS=""
        else
            BATSTATUS=""
        fi
    fi

	# Volume
	AUDIODEV="$(sxmo_audiocurrentdevice.sh)"
    AUDIOSYMBOL=$(echo "$AUDIODEV" | cut -c1)
    if [ "$AUDIOSYMBOL" = "L" ]; then
        AUDIOSYMBOL="" #speakers, use no special symbol
    elif [ "$AUDIOSYMBOL" = "H" ]; then
        AUDIOSYMBOL=" "
    elif [ "$AUDIOSYMBOL" = "E" ]; then
        AUDIOSYMBOL=" " #earpiece
    fi
    VOL=0
	[ "$AUDIODEV" = "None" ] && AUDIOSYMBOL="ﱝ" || VOL="$(
		amixer sget "$AUDIODEV" |
		grep -oE '([0-9]+)%' |
		tr -d ' %' |
		awk '{ s += $1; c++ } END { print s/c }'  |
		xargs printf %.0f
	)"
    if [ "$AUDIODEV" != "None" ]; then
        if [ "$VOL" -eq 0 ]; then
            AUDIOSYMBOL="$AUDIOSYMBOLﱝ"
        elif [ "$VOL" -lt 25 ]; then
            AUDIOSYMBOL="$AUDIOSYMBOL奄"
        elif [ "$VOL" -gt 75 ]; then
            AUDIOSYMBOL="$AUDIOSYMBOL墳"
        else
            AUDIOSYMBOL="$AUDIOSYMBOL奔"
        fi
    fi
	# Time
	TIME="$(date +%R)"

	BAR="${CALLINFO}${MODEMMON}${WIRELESS} ${AUDIOSYMBOL} ${BATSTATUS} ${TIME}"
	xsetroot -name "$BAR"
}

# E.g. on first boot justs to make sure the bar comes in quickly
update && sleep 1 && update && sleep 1

while :
do
	update
	sleep 30 & wait
done