#!/bin/bash

SOURCESCRIPT="$0"
SAVEINTERMEDIATE=true

function prep() {
	OUTPUTFILE="$1"
	shift
	TARGET="$1"
	shift
	
	$SAVEINTERMEDIATE && INTERMEDIATEFILE="$OUTPUTFILE-intermediate.md" || INTERMEDIATEFILE="/dev/null"

	awk -f <(sed -e '/[B]EGIN_AWK1/,/[E]ND_AWK1/!d' "$SOURCESCRIPT") \
		-v target="$TARGET" \
		$@ | tee "$INTERMEDIATEFILE" | \
		pandoc -f markdown \
			--standalone \
			--reference-doc=reference.odt \
			-o "$OUTPUTFILE"

	return $?

}

prep "output-internal.odt" internal $@
prep "output-external.odt" external $@

exit

#BEGIN_AWK1

/^<<</ {
	nextconditional = trim(substr($0, 4))
	if (nextconditional == conditional)
		print "Already inside conditional. Please check source." > "/dev/stderr"
	conditional = nextconditional
	next
}

/^>>>/ {
	conditional = ""
	next
}


// {
	if (conditional) {
		if (conditional != target)
			next
	}

	print
}


# From: https://stackoverflow.com/questions/9985528/how-can-i-trim-white-space-from-a-variable-in-awk
function ltrim(s) { sub(/^[ \t\r\n]+/, "", s); return s }
function rtrim(s) { sub(/[ \t\r\n]+$/, "", s); return s }
function trim(s) { return rtrim(ltrim(s)); }

#END_AWK1