pandoc_sources := $(wildcard *.md)
presentations = $(pandoc_sources:%.md=%.html)

basedir = ../../..
core_code_files := reset.css reveal.css theme/black.css reveal.js
plugin_code_files := notes/notes.js search/search.js zoom/zoom.js
all_core_code_files = $(core_code_files:%=$(basedir)/revealjs/dist/%)
all_plugin_code_files = $(plugin_code_files:%=$(basedir)/revealjs/plugin/%)

all: $(presentations)

$(presentations): %.html : %.md $(basedir)/.gitignore \
 $(all_core_code_files) $(all_plugin_code_files)
#	mkdir -p $(dir $@)
	pandoc -f commonmark_x -t revealjs --slide-level=2 --standalone -V revealjs-url=$(basedir)/revealjs --resource-path=.. -o "$@" -- "$<"

$(all_core_code_files): $(basedir)/revealjs/dist/%:
	wget -P revealjs -x -nH --cut-dirs=2 --directory-prefix=$(basedir)/revealjs/dist https://unpkg.com/reveal.js@^4/dist/"$*"

$(all_plugin_code_files): $(basedir)/revealjs/plugin/%:
	wget -P revealjs -x -nH --cut-dirs=1 --directory-prefix=$(basedir)/revealjs https://unpkg.com/reveal.js@^4/plugin/"$*"