#!/bin/bash

#Converts tex file to html file that fits my site's format
#USAGE:
#converter.sh -p I.2.7 Ip2p8.tex

#this script is assuming that sed is GNU sed 4.4
#...and probably some other assumptions too

OUTFILE_MOD="_new"
SAMPLE_FILE="sample_hartshorned.html"
sample_file="$SAMPLE_FILE"
TEX_FILES_DIR="texfiles"

function ptodot() {
	ok1=$(sed 's/p/\./g' <<< $1)
	ok1=$(sed 's/n/\,/g' <<< $ok1)
	echo $ok1
}

function dottop() {
	ok1=$(sed 's/\./p/g' <<< $1)
	ok1=$(sed 's/\,/n/g' <<< $ok1)
	echo $ok1
}

#Get last argument
for i in $@; do :; done


#Rest of code actually does the tex -> html conversion

infile="$i"

exid_P=$(cut -d '.' -f 1 <<< "$infile")
ext=$(cut -d '.' -f 2 <<< "$infile")

past_exid=""
date="_DATE_"

#if tex file supplied as argument, run make4ht

if [ ! $ext = "tex" ]
then
	echo "Argument must be a tex file. Exiting..." >&2
	exit 1
fi

#make4ht --utf8 $infile
make4ht $infile

if [ $? -eq 0 ]
then
	ext="html"
	infile=${exid_P}.${ext}
else
	echo "Something went wrong with make4ht" >&2
	exit 1
fi

#make output file
outfile="$exid_P""$OUTFILE_MOD"."$ext"

#-p option takes the past exercise id as argument
#-d option takes the date as argument
past_exid=""
while getopts "d:p:" o; do
	case $o in 
		p)
			past_exid="$OPTARG"
			;;
		d)
			date="$OPTARG"
			;;
	esac
done

if [[ $past_exid = "" ]]
then
	echo "Must supply past exercise id with option -p"
	exit 1
fi

#used cut at first but sed is quicker lol
#chapter=$(cut -d "p" -f 1 <<< $exid_P)
#section=$(cut -d "p" -f 2 <<< $exid_P)
#exercise=$(cut -d "p" -f 3 <<< $exid_P)
#exid="$chapter"."$section"."$exercise"
exid=$(ptodot $exid_P)
past_exid_P=$(dottop $past_exid)

#Grab body of make4ht output, store it in new file
sed '1,/^<\/head>/d;/^<\/body><\/html>/d' "$infile" > "$outfile"
sed '1d' -i "$outfile" #forgot what the purpose of this was lol

sed '/END_HEADER/,$d' "$sample_file" > header.html
sed '1,/START_FOOTER/d' "$sample_file" > footer.html

sed '/START_HEADER/d' -i header.html
sed '/END_FOOTER/d' -i footer.html


#concat header, body, footer
cat header.html "$outfile" footer.html > tmp.html
mv tmp.html "$outfile"
rm header.html footer.html


#Finding img tags and moving them over to the next line
sed -ni '/<img/!ba; s/<img//; p; n; s/^/<img /; :a; p;' $outfile
#Wrapping img tags with my span tags
sed -rni '/alt="PIC"/!ba; s/^/<span class="img hs_img">/; p; n; s/(\/>)/\1<\/span>/; :a; p;' $outfile

#getting rid of something that messes up the color
sed -i 's/id="textcolor."//g' $outfile

#Replace placeholders
sed -i "s/_THIS_EX_/$exid/g"  $outfile
sed -i "s/_PTHIS_EX_/$exid_P/g"  $outfile
sed -i "s/_PAST_EX_/$past_exid/g"  $outfile
sed -i "s/_PPAST_EX_/$past_exid_P/g"  $outfile
sed -i 's/STARTDIAGSEC/<div class="dialogue_section"><p>/g' $outfile
sed -i 's/ENDDIAGSEC/<\/p><\/div>/g' $outfile

sed -i 's/STARTBIGCURSIVE/<span class="big_cursive">/g' $outfile
sed -i 's/ENDBIGCURSIVE/<\/span>/g' $outfile
sed -i 's/STARTBIGTEXT/<span class="big_text">/g' $outfile
sed -i 's/ENDBIGTEXT/<\/span>/g' $outfile
sed -i 's/STARTBIGGERTEXT/<span class="bigger_text">/g' $outfile
sed -i 's/ENDBIGGERTEXT/<\/span>/g' $outfile
sed -i 's/STARTBIGGESTTEXT/<span class="biggest_text">/g' $outfile
sed -i 's/ENDBIGGESTTEXT/<\/span>/g' $outfile
sed -i 's/STARTCENTER/<span class="center">/g' $outfile
sed -i 's/ENDCENTER/<\/span>/g' $outfile
sed -i 's/STARTSOUT/<s>/g' $outfile
sed -i 's/ENDSOUT/<\/s>/g' $outfile
sed -i 's/STARTGREENTEXT/<span class="greentext">/g' $outfile
sed -i 's/ENDGREENTEXT/<\/span>/g' $outfile
sed -i 's/STARTYELLOWTEXT/<span class="yellow">/g' $outfile
sed -i 's/ENDYELLOWTEXT/<\/span>/g' $outfile
sed -i 's/STARTCAPTION/<div class="caption" style="text-align: center;"><p>/g' $outfile
sed -i 's/ENDCAPTION/<\/p><\/div>/g' $outfile

sed -i 's/STARTCMT/<div class="CMT>/g' $outfile
sed -i 's/ENDCMT/<\/div>/g' $outfile
sed -i 's/STARTBREAK/<span class="break">/g' $outfile
sed -i 's/ENDBREAK/<\/span>/g' $outfile

if [[ $date != "" ]]
then
	sed -i "s@_DATE_@$date@g" $outfile
fi

#FIXING THE STICKING OUT THINGY:
echo ".CMT {
	white-space: normal;
}" >> ${exid_P}.css

echo ".break {
	-ms-word-break: break-all;
	word-break: break-word;
	-moz-hyphens: auto;
	hyphens: auto;
	overflow-wrap: anywhere;
	word-break: break-all;
}" >> ${exid_P}.css

echo "div.date {
	text-align: left;
}" >> ${exid_P}.css

echo ".big_cursive {
	font-weight: bold; 
	font-style: italic;
	font-size: 22px;
	font-family: cursive, Georgia, serif;
}" >> ${exid_P}.css

echo ".big_text {
	font-size: 25px;
}" >> ${exid_P}.css

echo ".bigger_text {
	font-size: 30px;
}" >> ${exid_P}.css

echo ".biggest_text {
	font-size: 50px;
}" >> ${exid_P}.css

echo ".center {
	text-align: center;
}" >> ${exid_P}.css

#replace double quotes
sed -r 's/&#8221;/"/g' -i $outfile
#replace single quotes last cause vim syntax highlighting lmao
#nvm fixed it but whatever
sed -r "s/&#8217;/\'/g" -i $outfile
#sed -r "s/±/&#177;/g" -i $outfile 
sed -rni '/alt="PIC"/!ba; s@$@/></span><br @; p; n; d; :a; p;' $outfile
sed -r 's@(<img src=)(.*)(alt="PIC".*>)@<a href=\2>\1\2\3</a>@g' -i $outfile