#!/bin/sh

source ~/.config.env

weatherreport="${XDG_DATA_HOME:-$HOME/.local/share}/weatherreport"
weatherreportjson="${XDG_DATA_HOME:-$HOME/.local/share}/weatherreportjson"

getforecast() { curl -sf "wttr.in/$LOCATION" > "$weatherreport" || exit 1 ;}
getforecastjson() { curl -sf "wttr.in/$LOCATION?format=j1" > "$weatherreportjson" || exit 1 ;}

# Some very particular and terse stream manipulation. We get the maximum
# precipitation chance and the daily high and low from the downloaded file and
# display them with coresponding emojis.
showweather() {
	jq -r ".weather|.[0]|.hourly|.[$(expr $(date '+%H') / 4)]|.FeelsLikeC,.chanceofrain,.chanceofsnow,.WindGustKmph" "$weatherreportjson" |sed ':a;N;$!ba;s/\n/ /g' \
	| awk -F' ' '{
		if ($4 > 30)
			print "^c#ffffff^  ^d^" $4 "kph ^c#ebcb8b^ 盛 ^d^ " $1 "°"
		else if ($2 < $3)
			print "^c#ffffff^ ^d^" $3 "% ^c#ebcb8b^ 盛 ^d^ " $1 "°"
		else
			print "^c#81a1c1^ ^d^" $2 "% ^c#ebcb8b^ 盛 ^d^ " $1 "°"}'
}

case $BLOCK_BUTTON in
	1) setsid -f st -c weather -n weather -e less -Srf "$weatherreport" ;;
	2) getforecast && showweather && kill -50 $(pidof dwmblocks) ;;
	3) notify-send " Weather module" "\- Left click for full forecast.
- Middle click to update forecast.
: Chance of rain/snow
ﰕ: Daily low
滛: Daily high" ;;
	6) "$TERMINAL" -e "$EDITOR" "$0" ;;
esac

# The test if our forcecast is updated to the day. If it isn't download a new
# weather report from wttr.in with the above function.
[ "$(date -r "/home/yigit/.local/share/weatherreport" "+%d-%m-%Y")" = "$(date '+%d-%m-%Y')" ] ||
	getforecast

[ "$(date -r "/home/yigit/.local/share/weatherreportjson" "+%d-%m-%Y %H")" = "$(date '+%d-%m-%Y %H')" ] ||
	getforecastjson

showweather