#
# As of October 2017, I'm doing some Spanish-specific adjustments to
# this Makefile; they should be generalized... But I'm taking a step at a time :)
# -GW
#
SOURCE=MadewithCreativeCommonsmostup-to-dateversion

# Versioning: I'm using the date on which I got the source document
# (2017-06-09), plus an incrementing local part, that *should*
# increase every time the generated Markdown is modified.
VERSION=20170609-2

TEXLANGCODE=es

#TEXLANGCODE=nb

# pandoc version 1.17.2~dfsg-3 do not understand
# --top-level-diversion, while version 1.19.2.4~dfsg-1+b3 do.
PANDOC_OPTS = \
  --standalone \
  --top-level-division=part \
  -t docbook \
  -f markdown+inline_notes+ascii_identifiers

LANGS := $(shell ls po/*/mwcc.po|cut -d/ -f2)

all: pdf epub

distclean: clean
	rm -f $(SOURCE).md
	for LANG in $(LANGS); do \
	    rm -f $(SOURCE).$$LANG.md ;\
	done
clean:
	for EXT in aux cb cb2 glo idx lof log tex toc xml pdf epub; do \
	    rm -f $(SOURCE).$$EXT ;\
	    for LANG in $(LANGS); do \
	        rm -f $(SOURCE).$$LANG.$$EXT ;\
	    done; \
        done
	$(RM) *~

$(SOURCE).md: $(SOURCE).odt fixup.rb
	TEMP=`tempfile -p mwcc` && \
	pandoc -f odt $(SOURCE).odt -t markdown > $$TEMP && \
	ruby fixup.rb $$TEMP $(SOURCE).md && \
	rm $$TEMP

pot: po/mwcc.pot po/*/mwcc.po
po/mwcc.pot: $(SOURCE).xml
	TEMP=`tempfile -p mwcc` && \
	po4a-gettextize -f docbook -m $(SOURCE).xml -p $$TEMP -M utf-8 --package-name 'Made with Creative Commons' --package-version $(VERSION) && \
	echo '# MADE WITH CREATIVE COMMONS' > $@ && \
	echo '# Copyright (C) 2017 by Creative Commons.' >> $@ && \
	echo '# This file is published under a Creative Commons Attribution-ShareAlike license (CC BY-SA), version 4.0' >> $@ && \
	echo '# Authors: Paul Stacey and Sarah Hinchliff Pearson' >> $@ && \
	tail --lines=+5 $$TEMP >> $@ && \
	rm $$TEMP

po/*/mwcc.po: po/mwcc.pot
	msgmerge --previous $@ po/mwcc.pot -U
	touch $@

$(SOURCE).es.xml: $(SOURCE).xml po/es/mwcc.po
	po4a-translate -f docbook -m $(SOURCE).xml -p po/es/mwcc.po -l $@ -l $@ -L utf-8 -M utf-8 -k 0

$(SOURCE).nb.xml: $(SOURCE).xml po/nb/mwcc.po
	po4a-translate -f docbook -m $(SOURCE).xml -p po/nb/mwcc.po -l $@ -l $@ -L utf-8 -M utf-8 -k 0

$(SOURCE).xml: $(SOURCE).md fixup-docbook.rb
	TEMP=`tempfile -p mwcc` && \
	  pandoc -s -o $$TEMP $(PANDOC_OPTS) $(SOURCE).md && \
	  ruby fixup-docbook.rb $$TEMP $@ && \
	  rm $$TEMP

pdf: $(SOURCE).pdf
%.pdf: %.tex
	pdflatex $^
	pdflatex $^

epub: $(SOURCE).epub
%.epub: %.xml
	dbtoepub $^

# Replace Unicode Hair Space (U+200A) with space, as   is not
# handled by LaTeX/dblatex, see <URL: https://bugs.debian.org/889603 >.
%.tex: %.xml
	dblatex -t tex -b xetex $^
	perl -p -i -e 's/\\caption\\end/\\caption{} \\end/; \
		s/ / /g; \
		s!\\maketitle!\\input{extra/$(TEXLANGCODE)/cover.tex}!; \
		s/\\author\{and\}/\\author{Paul Stacey \\and Sarah Hinchliff Pearson}/; \
		s/\\DBKinditem\{\\writtenby\}\{and\}/\\DBKinditem{\writtenby}{Paul Stacey and Sarah Hinchliff Pearson}/; \
		s/\\listoffigures//; \
		s/\\chapter\{(Colophon|Dedication)\}/\\chapter*{}/; \
		s/\\chapter\{(Foreword|Prefacio|Forord|Introduction|Introducción|Introduksjon)\}/\\chapter*{$$1} \\addcontentsline{toc}{chapter}{$$1}/; \
		s/\\section\{(Notes|Notas)\}/\\section*{$$1}/; \
		s/(Web links?|Vínculos Web)/\\section*{$$1}/; \
		s/^\s*(Revenue model|Interview date|Interviewees?|(Modelo de ingresos|Fecha de la entrevista|Entrevistad(?:o|a|os|as)))/\\textbf{$$1}/;' $@

XMLLINTOPTS = --nonet --noout  --xinclude --postvalid
lint: $(SOURCE).xml
	xmllint $(XMLLINTOPTS) $^
lint-es: $(SOURCE).nb.xml
	xmllint $(XMLLINTOPTS) $^
lint-nb: $(SOURCE).nb.xml
	xmllint $(XMLLINTOPTS) $^

check-urls:
	retval=0; for u in $$(perl -n -e'/<ulink url="(.+)"\/>/ && print "$$1\n"' MadewithCreativeCommonsmostup-to-dateversion.xml | sort -u); do \
	  HEAD -H "User-Agent: Docbook XML URL checker" "$$u" > /dev/null || echo "error fetching $$u"; retval=1; \
	done; exit $$retval

# Experimental build rule to test Docbook XSL + FOP processor 
xsl-fo-%.pdf: %.xml
	xsltproc --output $(subst .pdf,.fo,$@) \
	  extra/stylesheet-fo.xsl $^; \
	fop -fo $(subst .pdf,.fo,$@) -pdf $@

status:
	for LANG in $(LANGS); do \
	   printf "$$LANG "; msgfmt -o /dev/null --statistics po/$$LANG/mwcc.po; \
	done

.SUFFIXES: .xml .md