#!/bin/ksh
set -e

(( debug = 0 ))

function plot {
	[[ -z $3 ]] && echo function plot needs at least \<output file1,2\> && exit 1
	output=$1
	file1=$2
	file2=$3
	file3=$4
	file4=$5
	file5=$6

	[[ ! -r $file1 ]] && echo could not read $file1 && exit 1
	[[ ! -r $file2 ]] && echo could not read $file2 && exit 1
	[[ -n $file3 ]] && [[ ! -r $file3 ]] && echo could not read $file3 && exit 1
	[[ -n $file4 ]] && [[ ! -r $file4 ]] && echo could not read $file4 && exit 1
	[[ -n $file5 ]] && [[ ! -r $file5 ]] && echo could not read $file5 && exit 1

	# assuming all benchs have same amount of runs
	lines=`wc -l < $file1`

	(( debug > 0 )) && echo lines is $lines

	echo -n writing bonnie.dat ...
	rm -f bonnie.dat
	(( line = 1 ))
	until (( line > lines )); do
		(( debug > 0 )) && echo line is $line
		(( debug > 0 )) && echo sets is $sets

		# new plot data row of values for every type of IOPS
		for set in $sets; do
			value1=`sed -n ${line}p $file1 | cut -f$set -d,`
			value2=`sed -n ${line}p $file2 | cut -f$set -d,`
			[[ -n $file3 ]] && value3=`sed -n ${line}p $file3 | cut -f$set -d,`
			[[ -n $file4 ]] && value4=`sed -n ${line}p $file4 | cut -f$set -d,`
			[[ -n $file5 ]] && value5=`sed -n ${line}p $file5 | cut -f$set -d,`
			(( debug > 0 )) && echo value2 is $value2
			cat <<EOF >> bonnie.dat
$line   $set    $value1 $value2 $value3	$value4	$value5
EOF
		done; unset set
		(( line++ ))
	done && echo done

	# 5 test runs
	[[ ! -f bonnie.dat ]] && echo something went wrong, bonnie.dat is not there && exit 1
	(( `cat bonnie.dat | wc -l` < lines * 5 )) && echo bonnie.dat has less than $(( lines * 5 )) lines && exit 1

	echo -n writing bonnie.plot ...
	rm -f bonnie.plot
	cat > bonnie.plot <<EOF && echo done
set terminal pngcairo size 640,480
set output '$output'
set dgrid 40,40
set hidden3d
set xlabel "Test run"
set ylabel "Type of IOPS"
splot \\
	'bonnie.dat' u 1:2:3 with lines tit "${file1%\.bon}", \\
EOF
	echo -ne "\t'bonnie.dat' u 1:2:4 with lines tit \"${file2%\.bon}\"" >> bonnie.plot

	[[ -n $file3 ]] && echo ", \\" >> bonnie.plot && echo -ne "\t'bonnie.dat' u 1:2:5 with lines tit \"${file3%\.bon}\"" >> bonnie.plot
	[[ -n $file4 ]] && echo ", \\" >> bonnie.plot && echo -ne "\t'bonnie.dat' u 1:2:6 with lines tit \"${file4%\.bon}\"" >> bonnie.plot
	[[ -n $file5 ]] && echo ", \\" >> bonnie.plot && echo -ne "\t'bonnie.dat' u 1:2:7 with lines tit \"${file5%\.bon}\"" >> bonnie.plot

	# add carriage return on the last values
	echo >> bonnie.plot

	echo -n writing $output ...
	gnuplot -c bonnie.plot && echo done

	unset output file1 file2 file3 file4 file5
}

function many {
	sets="3 5 7 9 11"
	plot $@
	unset sets
}

function percent {
	sets="4 6 8 10 12"
	plot $@
	unset sets
}

#many	performance0.png ext4.bon xfs.bon btrfs.bon f2fs.bon
#percent	cpu-usage0.png   ext4.bon xfs.bon btrfs.bon f2fs.bon
#echo

#many	butterfs-algo.png     btrfs-lzo.bon btrfs-zstd.bon btrfs-zlib.bon
#percent	butterfs-algo-cpu.png btrfs-lzo.bon btrfs-zstd.bon btrfs-zlib.bon
#echo

#many	    reiser4-algo.png reiser4-lzo1.bon reiser4-zstd1.bon reiser4-gzip1.bon
#percent	reiser4-algo-cpu.png reiser4-lzo1.bon reiser4-zstd1.bon reiser4-gzip1.bon
#echo

#many	performance-lzo.png     btrfs-lzo.bon reiser4-lzo1.bon f2fs-lzo-rle.bon
#percent	performance-lzo-cpu.png btrfs-lzo.bon reiser4-lzo1.bon f2fs-lzo-rle.bon
#echo

#many	performance-zstd.png     btrfs-zstd.bon reiser4-zstd1.bon f2fs-zstd.bon
#percent	performance-zstd-cpu.png btrfs-zstd.bon reiser4-zstd1.bon f2fs-zstd.bon
#echo

#many	f2fs-z.png     f2fs-lz4.bon f2fs-lzo-rle.bon f2fs-zstd.bon
#percent	f2fs-z-cpu.png f2fs-lz4.bon f2fs-lzo-rle.bon f2fs-zstd.bon
#echo

#many	xfs-vs-lzo.png     btrfs-lzo.bon xfs.bon
#percent	xfs-vs-lzo-cpu.png btrfs-lzo.bon xfs.bon
#echo

echo all done

	# 1024,768