#!/bin/sh


cd /home/1-wire || exit 1


if [ -f log/graph.lock ]
then
	#echo "$0 (PID $$) aborted, last session is still running" >&2
	exit 1
fi

touch log/graph.lock


export PATH=$PATH:/usr/local/bin


xpoints=513
ypoints=140

db_in=db/temp_in.rrd
db_out=db/temp_out.rrd
db_server=db/temp_server.rrd

dest=www


graph()
{
	local start title graph arg1 arg2
	
	
	start=$1
	
	title=$2
	
	graph="$dest/temp-$start.png"
	
	
	arg1=
	arg2=
	
	#if [ "$title" = Yearly ]
	#then
	#	arg1=_
	#	
	#	arg2='CDEF:temp_in_cf_max=temp_in_cf_max_,1,POP'
	#	
	#	echo $arg1
	#	echo $arg2
	#fi
	
	
	rrdtool graph "$graph.tmp" \
		\
		--imgformat PNG \
		\
		--width "$xpoints" \
		--height "$ypoints" \
		\
		--start "-$start" \
		\
		--title "$title temperatures" \
		--vertical-label '°C' \
		\
		--units-exponent 0 \
		--units-length 5 \
		\
		--slope-mode \
		--interlaced \
		--alt-y-grid \
		\
		"DEF:temp_in=$db_in:temp:AVERAGE" \
		"DEF:temp_in_cf_min=$db_in:temp:MIN" \
		"DEF:temp_in_cf_max$arg1=$db_in:temp:MAX" \
		\
		"DEF:temp_out=$db_out:temp:AVERAGE" \
		"DEF:temp_out_cf_min=$db_out:temp:MIN" \
		"DEF:temp_out_cf_max=$db_out:temp:MAX" \
		\
		"DEF:temp_server=$db_server:temp:AVERAGE" \
		"DEF:temp_server_cf_min=$db_server:temp:MIN" \
		"DEF:temp_server_cf_max=$db_server:temp:MAX" \
		\
		$arg2 \
		\
		'VDEF:temp_in_min=temp_in_cf_min,MINIMUM' \
		'VDEF:temp_in_max=temp_in_cf_max,MAXIMUM' \
		'VDEF:temp_in_avg=temp_in,AVERAGE' \
		'VDEF:temp_in_last=temp_in,LAST' \
		\
		'VDEF:temp_out_min=temp_out_cf_min,MINIMUM' \
		'VDEF:temp_out_max=temp_out_cf_max,MAXIMUM' \
		'VDEF:temp_out_avg=temp_out,AVERAGE' \
		'VDEF:temp_out_last=temp_out,LAST' \
		\
		'VDEF:temp_server_min=temp_server_cf_min,MINIMUM' \
		'VDEF:temp_server_max=temp_server_cf_max,MAXIMUM' \
		'VDEF:temp_server_avg=temp_server,AVERAGE' \
		'VDEF:temp_server_last=temp_server,LAST' \
		\
		'COMMENT:\s' \
		'COMMENT:\s' \
		'COMMENT:\s' \
		'COMMENT:                    Min     Max     Avg     Last' \
		'COMMENT:\s' \
		'COMMENT:\s' \
		'COMMENT:\s' \
		\
		'LINE2:temp_in#DD3F4A:Indoor       ' \
		'GPRINT:temp_in_min:%6.1lf' \
		'GPRINT:temp_in_max:%6.1lf' \
		'GPRINT:temp_in_avg:%6.1lf' \
		'GPRINT:temp_in_last:%6.1lf\n' \
		\
		'LINE2:temp_out#3F4ADD:Outdoor      ' \
		'GPRINT:temp_out_min:%6.1lf' \
		'GPRINT:temp_out_max:%6.1lf' \
		'GPRINT:temp_out_avg:%6.1lf' \
		'GPRINT:temp_out_last:%6.1lf\n' \
		\
		'LINE2:temp_server#4ADD3F:Server corner' \
		'GPRINT:temp_server_min:%6.1lf' \
		'GPRINT:temp_server_max:%6.1lf' \
		'GPRINT:temp_server_avg:%6.1lf' \
		'GPRINT:temp_server_last:%6.1lf\n' \
		\
		'COMMENT:\s' \
		'COMMENT:\s' \
		'COMMENT:\s' \
		"COMMENT:                                                 `date '+%Y-%m-%d %H\:%M\:%S GMT%z/%Z'`" \
		\
		> /dev/null && \
		\
		mv "$graph.tmp" "$graph" || \
		exit 1
}


graph 1d Daily
graph 1w Weekly
graph 1m Monthly
graph 1y Yearly
graph 10y Decennary


sh graph-out.sh


rm log/graph.lock