#!/bin/sh

# This script sets the statusbar with the xsetroot command at the end.

# testweather checks to see if the most recent forecast is up to date.  If it
# isn't, it downloads a new weather forecast, then signals to update the
# statusbar. Gets weather report from wttr.in.
testweather() { \
	[ "$(stat -c %y "$HOME/.local/share/weatherreport" 2>/dev/null | cut -d' ' -f1)" != "$(date '+%Y-%m-%d')" ] &&
		ping -q -c 1 1.1.1.1 >/dev/null &&
		curl -s "wttr.in/$location" > "$HOME/.local/share/weatherreport" &&
		notify-send "🌞 Weather" "New weather forecast for today." &&
		refbar
		}

# Here is the (big) function that outputs the appearance of the statusbar. It
# can really be broken down into many submodules which I've commented and
# explained.  Note that I use printf "%s" to format everything without line
# breaks. I try to put | as delimiters between modules.
status() { \

	# Get current mpd track filename or artist - title if possible.
	printf "%s" "$(mpc -f "[[%artist% - ]%title%]|[%file%]" 2>/dev/null | grep -v "volume:[0-9]*%" | head -n 1)"

	# If the weather report is current, show daily precipitation chance,
	# low and high.  Don't even bother to understand this one unless you
	# have all day. Takes the weather report format from wttr.in and makes
	# it look like how I want it for the status bar.
	[ "$(stat -c %y "$HOME/.local/share/weatherreport" 2>/dev/null | cut -d' ' -f1)" = "$(date '+%Y-%m-%d')" ] &&
		printf "| %s" "$(sed '16q;d' "$HOME/.local/share/weatherreport" | grep -wo "[0-9]*%" | sort -n | sed -e '$!d' | sed -e "s/^/☔ /g" | tr -d '\n')" &&
		sed '13q;d' "$HOME/.local/share/weatherreport" | grep -o "m\\(-\\)*[0-9]\\+" | sort -n -t 'm' -k 2n | sed -e 1b -e '$!d' | tr '\n|m' ' ' | awk '{print " ❄️",$1 "°","🌞",$2 "° |"}'

	# The newsboat module is noticeably slower than all others.
	# Especially if you don't use newsboat, you will want to comment it out.
	# printf ":%s |" "$(newsboat -x print-unread | cut -d' ' -f1)"

	# Get the volume of ALSA's master volume output.  Show an icon if or
	# not muted.
	printf "%s |" "$(amixer get Master | grep -o "[0-9]*%\|\[on\]\|\[off\]" | sed "s/\[on\]//;s/\[off\]//")"

	# Wifi quality percentage and  icon if ethernet is connected.
	printf " %s%s " \
		"$(grep "^\s*w" /proc/net/wireless | awk '{ print "", int($3 * 100 / 70) "%" }')" \
		"$(sed "s/down//;s/up/ /" /sys/class/net/e*/operstate)"

	# Show unread mail if mutt-wizard is installed.
	command -v mw >/dev/null 2>&1 &&
		printf "| :%s | " "$(du -a ~/.local/share/mail/*/INBOX/new/* 2>/dev/null | wc -l)"

	# Will show all batteries with approximate icon for remaining power.
	for x in /sys/class/power_supply/BAT?/capacity;
	do
	case "$(cat $x)" in
		100|9[0-9])	printf "" ;;
		8[0-9]|7[0-9])	printf "" ;;
		6[0-9]|5[0-9])	printf "" ;;
		4[0-9]|3[0-9])	printf "" ;;
		*)		printf "" ;;
	esac; printf " "
	done

	# Date and time.
	printf "| %s" "$(date '+%Y %b %d (%a) %I:%M%p')"
	}

while :; do
	# So all that big status function was just a command that quicking gets
	# what we want to be the statusbar. This xsetroot command is what sets
	# it.
	xsetroot -name "$(status)"

	# Check to see if new weather report is needed.
	testweather &

	# Sleep for a minute after changing the status bar before updating it
	# again. Note that the `refbar` "refreshes" the statusbar by killing
	# this command. Feel free to change the time interval if you want.
	sleep 1m
done