.SUFFIXES:

notes := $(wildcard *.md)
pages := $(patsubst %.md,public_html/%.html,$(notes))
parts := $(patsubst %.md,public_html/%.html.part,$(notes))
preqs := $(patsubst %.md,public_html/%.html.d,$(notes))

all: $(pages)

PANDOCFLAGS := --data-dir pandoc
BAVBAVHAUSFLAGS = $(PANDOCFLAGS) -M slug=$*

public_html/%.html: %.md
	pandoc $(BAVBAVHAUSFLAGS) -d bavbavhaus.net.yaml $< | sed 's/↩︎/<->/g' > $@

public_html/%.html.part: %.md
	pandoc $(BAVBAVHAUSFLAGS) -d bavbavhaus.net.part.yaml --id-prefix $* -o $@ $<

public_html/%.html.d: %.md
	pandoc lua dependencies.lua $< > $@

include $(preqs)

clean: oldpages := $(filter-out $(pages),$(wildcard public_html/*.html))
clean: oldparts := $(filter-out $(parts),$(wildcard public_html/*.html.part))
clean: oldpreqs := $(filter-out $(preqs),$(wildcard public_html/*.html.d))
clean:
	$(if $(oldpages),$(RM) $(filter-out $(pages),$(wildcard public_html/*.html)))
	$(if $(oldparts),$(RM) $(filter-out $(parts),$(wildcard public_html/*.html.part)))
	$(if $(oldpreqs),$(RM) $(filter-out $(preqs),$(wildcard public_html/*.html.d)))

.PHONY: all clean

dest/%.docx: %.md
	test -d dest || mkdir dest
	pandoc $(PANDOCFLAGS) -d docx.yaml -o $@ $<