#!/bin/bash 
# CREATE PDF from markdown files
#

#set -x 
set -e

if [ $# -eq 1 ] 
then 
	CONF=$1
else 
CONF="verse.conf"
fi

TEMPLATE="verse-wrapper-template.tex"
CONVERTER="md2verse.sh"

if ! [[ -f $CONF ]] ; then echo "$CONF not found! Exiting ..." && exit ; fi 
if ! [[ -f $CONVERTER ]] ; then echo "$CONVERTER not found! Exiting ..." && exit ; fi 
if ! [[ -x $CONVERTER ]] ; then echo "$CONVERTER not executable! Exiting ..." && exit ; fi 

. $CONF
# CREATE WORKING DIR
WD=$PWD
TMPDIR=$(mktemp -d) 
PATH=$PATH:$WD
pushd $TMPDIR > /dev/null

# CONVERT MD TO TEX 
for tex in $( echo $INFILES | grep '.md$' ) 
do
	if [[ -f $WD/$tex ]]
	then 
		# create parent dir if necassary
		mkdir -p $(dirname $tex)
		$CONVERTER $WD/$tex > $( echo $tex | sed "s/.md/.tex/" )
	else 
		if [[ $tex == *.md ]]
		then
			echo "$WD/$tex does not exist!!!"
		fi
	fi
done 

# CREATE WRAPPER 
WRAPPER="""\documentclass{$DOCCLASS}
\usepackage[fontsize=${FONTSIZE}pt]{fontsize}
\usepackage[${PAGESIZE}paper]{geometry} % A6
\usepackage{verse, gmverse} % https://tex.stackexchange.com/a/542222

\newcommand{\attrib}[1]{%
	\nopagebreak{\raggedleft\footnotesize #1\par}
}

\title{ ${TITLE} }
\author{ ${AUTHOR} }
\date{\today}

\begin{document}
\maketitle

\tableofcontents
"""
WRAPPER_END="""
\end{document}
"""

echo "$WRAPPER" > $PROJECT.tex
for input in $INFILES
do 
	if [[ $input == *.md ]]
	then 
#		if [[ -f $WD/$input ]] ; then 
			echo '\input' "{ $( echo $input | sed 's/.md/.tex/' ) }" >> $PROJECT.tex 
#		fi 
	else 
		#is chapter 
		echo '\chapter' " { $input }" >> $PROJECT.tex
	fi
	echo '\clearpage' >> $PROJECT.tex
done 
echo "$WRAPPER_END" >> $PROJECT.tex

# CREATE PDF 
$LATEX_ENGINE $PROJECT.tex 2&> /dev/null
$LATEX_ENGINE $PROJECT.tex 2&> /dev/null
popd > /dev/null
if [[ -d $WD/$PROJECT ]] ; then rm -rf $WD/$PROJECT ; fi 
cp -r $TMPDIR $WD/$PROJECT
echo "File $PROJECT.pdf created at $WD/$PROJECT"
rm -rf $TMPDIR