#!/bin/bash
file=parkinson
template=../TEMPLATES/mslide
#help="$template/help.fr"

# which HTML to PDF converter
usePrince=false

# PDF Options
coverPage=false
newPage=true
color=false
titleCount=true
ownSlideCss=
ownDocCss=
usePrince=false 

# End of configuration

# preset binaries
AWK=awk
SED=sed
DATA_URI=data-uri
PRINCE=prince
WEASYPRINT=weasyprint
resourcePath=".:$template"
PATH="$template:$PATH"

# if we run on Windows set what we have to launch
if [ "$OS" = "Windows_NT" ]
then
	PATH="$PATH;;C:\Program Files (x86)\Prince\engine\bin;$PATH;$template"
	AWK="$template/goawk.exe"
	SED="$template/sed-go.exe"
	resourcePath=".;$template"
fi

# extract lang from markdown file
lang=$($AWK '{
		if ( $1 == "lang:" ) {
			print $2
			exit;
		}
	}' "$file.md")

# This don't work for dash, use sed!
# lang="${lang:0:2}"
lang=$(echo $lang | $SED 's/^\(..\).*/\1/')
help="$template/help.$lang"

# preset for PDF 
coverpage=empty.css
newpage=empty.css
ownslidecss=empty.css
owndoccss=empty.css
colorcss=empty.css
titlecount=empty.css

# now set the correxponding variables
if [ "$coverPage" = "true" ]; then
	coverpage=cover.css
fi
if [ "$newPage" = "true" ]; then
	newpage=newpage.css
fi
if [ "$color" = "true" ]; then
	colorcss=pygments.css
fi
if [ "$titleCount" = "true" ]; then
	titlecount=h-counter.css
fi

if [ "$ownSlideCss" != "" ]; then
	ownslidecss="$ownSlideCss"
fi
if [ "$ownDocCss" != "" ]; then
	owndoccss="$ownDocCss"
fi

cover() {
	awk -F ' ' 'BEGIN { level=0; cover=0; } {
		if ( $1 == "<section" ) {
			level++;
		}
		if ( $1 == "</section>" ) {
			level--;
		}
		if ( $1 == "<section" && level == 1 ) {
			printf("<article %s %s\n", $2, $3);
		} else {
			if ( $1 == "<section" && level == 2 && cover == 0) {
				cover = 1;
				; #printf("<section %s class=\"level2 cover\">\n", $2);
			} else {
				if (  $1 == "</section>" && level == 0 ) {
					printf("</article>\n");
				} else {
					if ( $1 == "<section" || $1 == "</section>"  ) [
						;
					} else {
						print
					}
				}
			}
		}
	}'
}

altalt() {
	sed -e 's/\(alt="[^"]*"*\) \(alt="[^"]*"\)/\1/' -e 's/figcaption aria-hidden="true"/figcaption/'
}

removeLinks() {
	sed 's/href="#cb[0-9][0-9a-z-]*"//'
}

pandoc -L "$template/convertHeader.lua" \
-i "$file.md"  \
--resource-path ".:$template" \
--to html5 \
--section-div \
--template mslide.html \
--include-in-header stb.html \
--include-in-header main.css \
--include-in-header theme.css \
--include-in-header color.css \
--include-in-header anim.css \
--include-in-header ste.html \
--include-in-header jsb.html \
--include-in-header mslide.js \
--include-in-header jse.html \
--include-before-body $help |\
removeLinks |data-uri -i - -o "$file-slide.html"
#sed 's/href="#cb[0-9][0-9a-z-]*"//' > "$file-slide.html"

# TODO substitute first occurence if <section> to <article> ad
# last occurence of </section> to </article> 
pandoc -i "$file.md"  \
--section-div \
--resource-path ".:$template" \
--to html5 \
--template mweb.html \
--highlight-style pygments \
--section-divs \
--include-in-header stb.html \
--include-in-header docmain.css \
--include-in-header pygments.css \
--include-in-header h-counter.css \
--include-in-header ste.html |\
cover | altalt | removeLinks |\
data-uri -i - -o "$file.html"

weasyprint  "$file.html"  "$file.pdf"
#/home/jj/venv/bin/weasyprint --pdf-version 1.7 --pdf-variant pdf/ua-1 "$file.html"  "$file.pdf"