.PHONY: all clean dist

HTMLS = $(patsubst notebooks/%.ipynb,html/%.html,$(wildcard notebooks/*.ipynb))

badmathjax = "file:\/\/\/usr\/share\/javascript\/mathjax\/MathJax.js?config=TeX-AMS_CHTML-full,Safe"
goodmathjax = "https:\/\/cdn.jsdelivr.net\/npm\/mathjax@2\/MathJax.js?config=TeX-AMS_CHTML"

all: $(HTMLS)

clean:
	rm -r html

html/%.html: notebooks/%.ipynb | html
	jupyter nbconvert --to html $< --output $@ --output-dir=.
	sed -i 's/$(badmathjax)/$(goodmathjax)/' $@

html:
	mkdir -p html

dist: eulerbooks.tar.gz

eulerbooks.tar.gz: $(HTMLS) Makefile README.md LICENSE
	rm -f $@
	mkdir eulerbooks
	cp -r html eulerbooks
	mkdir eulerbooks/notebooks
	cp notebooks/*.ipynb eulerbooks/notebooks
	cp -r notebooks/txt eulerbooks/notebooks
	cp LICENSE Makefile README.md eulerbooks
	tar -czf $@ eulerbooks
	rm -r eulerbooks