PRESENTATIONS := $(patsubst src/%/presentation.tex,build/presentation_%.pdf,$(wildcard src/*/presentation.tex))
HANDOUTS := $(patsubst build/presentation_%.pdf,build/presentation_%_handout.pdf,$(PRESENTATIONS))

.PHONY: all
all: $(PRESENTATIONS) $(HANDOUTS)

build/presentation_%.pdf: src/%/presentation.tex build/prepared
	TEXINPUTS=./lib/cel-slides-template-2025:$$TEXINPUTS latexmk $<
	mv build/presentation.pdf $@

build/presentation_%_handout.pdf: src/%/presentation.tex build/prepared
	TEXINPUTS=./lib/cel-slides-template-2025:$$TEXINPUTS latexmk -pdflatex='pdflatex %O "\def\ishandout{1}\input{%S}"' $<
	mv build/presentation.pdf $@

build/prepared:
	mkdir -p build
	touch build/prepared

.PHONY: clean
clean:
	rm -rf build