#!/bin/sh

CACHE="$HOME/.cache/sway-status"
mkdir -p "$CACHE"

BAT_CACHE="$CACHE/battery"
NET_CACHE="$CACHE/network"
SYS_CACHE="$CACHE/system"

now=$(date +%s)

############################################
# CLOCK (unchanged)
############################################

date_formatted=$(date "+%a %F %I:%M")
date_prague=$(TZ=Europe/Prague date "+%a %F %I:%M")
date_london=$(TZ=Europe/London date "+%a %F %I:%M")

############################################
# BATTERY (cache 30 sec)
############################################

if [ ! -f "$BAT_CACHE.ts" ] || [ $((now - $(cat "$BAT_CACHE.ts" 2>/dev/null))) -gt 30 ]; then
	battery_info=$(upower --show-info \
		$(upower --enumerate | grep BAT) |
		egrep "state|percentage" |
		awk '{print $2}' | tr '\n' ' ')

	echo "$battery_info" > "$BAT_CACHE"
	echo "$now" > "$BAT_CACHE.ts"
fi

battery_info=$(cat "$BAT_CACHE")

############################################
# NETWORK (cache 15 sec)
############################################

if [ ! -f "$NET_CACHE.ts" ] || [ $((now - $(cat "$NET_CACHE.ts" 2>/dev/null))) -gt 15 ]; then

	route=$(ip route get 1.1.1.1 2>/dev/null)

	ip_addr=$(printf "%s" "$route" | awk '{print $7; exit}')
	network=$(printf "%s" "$route" | grep -Po '(?<=dev\s)\w+' | cut -f1 -d ' ')

	echo "$network $ip_addr" > "$NET_CACHE"
	echo "$now" > "$NET_CACHE.ts"
fi

read network ip_addr < "$NET_CACHE"

############################################
# CPU TEMP + RAM (cache 10 sec)
############################################

if [ ! -f "$SYS_CACHE.ts" ] || [ $((now - $(cat "$SYS_CACHE.ts" 2>/dev/null))) -gt 10 ]; then

	cpu_temp=$(sensors | grep -oP 'CPU.*?\+\K[0-9.]+' | head -1)
	ram_usage=$(free -h | awk '/^Mem:/ {print "RAM Usage: " $3 " / " $2}')

	echo "$cpu_temp|$ram_usage" > "$SYS_CACHE"
	echo "$now" > "$SYS_CACHE.ts"
fi

IFS="|" read cpu_temp ram_usage < "$SYS_CACHE"

############################################
# OUTPUT
############################################

echo $network $ip_addr \| CPU: $cpu_temp \| $ram_usage \| $battery_info \| LON: $date_london \| PRG: $date_prague \| $date_formatted