#!/bin/bash

die() {
    echo >&2
    echo ${1:-} >&2
    exit 1
}



OWFS=/etc/owfs

cd /$OWFS/temperature
for i in *
do 
	temp=`cat "$i/temperature"` || continue
	temp=`echo $temp | sed 's/ *//'`
	[[ $temp =~ ^[0-9\ .-]*$ ]] || die "$temp not clean"
	if [ $temp = 185 ]; then
		echo "$i is 185, likely bad temp, check sensor if it happens consistantly" >&2
		continue
	fi
	if [[ $temp == 31.1 && "$i" =~ UV ]]; then
		#echo "$i is 31.1, which means missing device for a UV sensor" >&2
		continue
	fi
	if [[ $temp == 31.1 && "$i" =~ Roof ]]; then
		#echo "$i is 31.1, which means missing device for a UV sensor" >&2
		continue
	fi
	line=$(echo "`date '+%Y/%m/%d %H:%M:%S'` $i F: $temp")

	# this trick relies on you having a temperature link for all those
	# sensors and 
	if value=`cat "$OWFS/humidity/$i/humidity" 2>/dev/null`; then
		[[ $value =~ ^[0-9\ .-]*$ ]] || die "$value not clean"
		value=`echo $value | sed 's/ *//'`
		echo "$line H: ${value}%"
	elif value=`cat "$OWFS/uvi/$i/UVI/UVI" 2>/dev/null`; then
		[[ $value =~ ^[0-9\ .-]*$ ]] || die "$value not clean"
		value=`echo $value | sed 's/ *//'`
		echo "$line U: ${value}"
	elif value=`cat "$OWFS/moisture/$i/current" 2>/dev/null`; then
		[[ $value =~ ^[0-9\ .-]*$ ]] || die "$value not clean"
		value=`echo $value | sed 's/ *//'`
		# 2010/07/08 18:34:04 35 Front_Lawn F: 32 M: 0
		if [ $value = 0 ]; then
			echo "moisture sensor needs to be reset/hub power cycled (got $line $value)" >&2
			continue
		fi
		echo "$line M: ${value}"
	else
		echo "$line"
		continue
	fi
done

exit 0