#!/bin/bash
source="$1"
# laser settings
height="Z6.5"
rate="F372"
pwm="S24000"

list=`grep -A100 "^exit" "$0" | grep "^T" `
nl=$'\n'; vt=$'\v'
n=0; part=0
error="none"
echo ""
date
if [ -z "$1" ]; then
	tmp="${0%/*}"
	cd "$tmp"
	source=`ls -t *.nc | grep -v "MOD" | head -1 `
	if [ -z "$source" ]; then 
		echo "No file"
		exit
	else
		source="$tmp/$source"
	fi
fi
echo "Processing $source"

file="${source%.*}MOD.${source##*.}"
head="${source%.*}MOD-$part-head.${source##*.}"
filep="$head"
rm -rf "${source%.*}MOD-*"
state="none"
on="G0${nl}M03 S0${nl}M0 ; Switch to LASER"
off="G0${nl}M04 S0${nl}M0 ; Switch to SPINDLE"
pause="M05 S0${nl}M09$nl"
date "+(%+)%n(${source##*/})%n(1)%n(2)%n(3)%n(4)%n(5)%n(6)%n(7)%n(8)%n(9)" > "$head"
cp "$head" "$file"
head -1 "$file"
while read -r line; do
	let n=n+1
	if [[ "x$line" =~ "M0 ;T" ]]; then
		tool=`echo "$line" | cut -d";" -f2`
		line="$pause$line $tmp"
		case "a$tool" in
			aT99*) 
				tool="T990" 
				line="$line$nl$on"
				state="laser" ;;
			aT98*)
				tool="T980" 
				line="$line$nl$off"
				state="skip" ;;
			*) 
				line="$line$nl$off"
				state="spindle" ;;
		esac
		tmp=`echo "$list" | grep "$tool" | cut -f2 `
		if [ -z "$tmp" ]; then 	# if tool code is not in the list at the end of this file
			error="$error$nl[$tool] $line"
			tmp="TOOL?"
		fi
		echo "$tail" >> "$filep"
		let part=part+1
		it=`echo "$tmp" | tr " /" "_%" `
		filep="${source%.*}MOD-$part-$tool-$it.${source##*.}" 
		cp "$head" "$filep"
		tail="$pause${nl}M02 ${nl}(END $tool $tmp)"
		printf "\nLine: $n $line $state\n" 
	else	
		if [ "x$state" == "xlaser" ]; then	
			if [[ $line =~ S ]]; then
				nline=`echo "$line" | sed -e "s/S[0-9.]*/$pwm/g"`"$nl$height$rate$nl" 
				line="$nline"
			fi
			if [[ $line =~ Z ]]; then
				nline=`echo "$line" | sed -e "s/Z[0-9.-]*/$height/g"`
				line="$nline"
			fi
			if [[ $line =~ F ]]; then
				nline=`echo "$line" | sed -e "s/F[0-9.]*/$rate/g"`	
				line="$nline"
			fi	
		fi
	fi
	
	echo "$line " >> "$filep"
	if [ "x$state" != "xskip" ]; then	
		echo "$line " >> "$file"
	fi
done < "$source"

echo "$tail" >> "$filep"
line=`wc -l "$file"`
tmp=`date "+( END lines =$line @ %+ )" `
echo "$pause$tmp" >> "$file"
# tail -10 "$file"
echo "${nl}Unknown Tools: $error $nl"
exit

T101	1/8 Ball
T102	1/8 End
T111	1/16 Ball
T112	1/16 End
T121	1/32 Ball
T122	1/32 End
T201	1/4 End
T202	1/4 Ball
T205	1/4 End
T301	90 Vee
T302	60 Vee
T970	60V0.3 Eng
T980	Skip
T990	Laser