############
# Settings #
############

suffixPub :=
suffixInt := _intern


###########
# Default #
###########

suffixSubst = $(patsubst %.$(2),%$(4).$(3),$(1))

mdFiles     := $(wildcard *.md)

pdfFilesPub := $(call suffixSubst,$(mdFiles),md,pdf,$(suffixPub))
texFilesPub := $(call suffixSubst,$(mdFiles),md,tex,$(suffixPub))

pdfFilesInt := $(call suffixSubst,$(mdFiles),md,pdf,$(suffixInt))
texFilesInt := $(call suffixSubst,$(mdFiles),md,tex,$(suffixInt))

.PHONY: all pdf pdfPub pdfInt tex texPub texInt
all: pdf

pdf: pdfPub pdfInt
pdfPub: $(pdfFilesPub)
pdfInt: $(pdfFilesInt)

tex: texPub texInt
texPub: $(texFilesPub)
texInt: $(texFilesInt)


###########
# Recipes #
###########

compile_md = pandoc \
	$(2) \
	--standalone \
	--from markdown \
	--to $(1) \
	--template lenaisten \
	--variable colorlinks:true \
	--variable csquotes:true \
	--variable lang:de-DE \
	--output $(3)

GSFLAGS := \
	-sDEVICE=pdfwrite \
	-dNOOUTERSAVE \
	-dNOPAUSE \
	-dQUIET \
	-dBATCH

postprocess_pdf = gs \
	$(GSFLAGS) \
	-sPAPERSIZE=a4 \
	-dFIXEDMEDIA \
	-dPDFFitPage \
	-dCompatibilityLevel=1.7 \
	-dPDFSETTINGS=/ebook \
	-sOutputFile=$(2) \
	$(1) \
	2>/dev/null

convert_pdfa = /opt/pdfa/bin/gs-919-linux_x86_64 \
	$(GSFLAGS) \
	-dPDFA=2 \
	-sProcessColorModel=DeviceRGB \
	-dPDFACompatibilityPolicy=1 \
	-sOutputFile=$(2) \
	/opt/pdfa/PDFA_def.ps \
	$(1) \
	2>/dev/null

md2pdf = $(call compile_md,pdf,$(1),-) | $(call postprocess_pdf,-,$(2))

md2pdfa = $(call md2pdf,$(1),-) | $(call convert_pdfa,-,$(2))

# pdf

%$(suffixPub).pdf: %.md lenaisten-defs.sty
	python3 ./redact.py $< | $(call md2pdfa,-,$@)

%$(suffixInt).pdf: %.md lenaisten-defs.sty
	python3 ./redact.py -i $< | $(call md2pdfa,-,$@)

# tex

%$(suffixPub).tex: %.md lenaisten-defs.sty
	python3 ./redact.py $< | $(call compile_md,latex,-,$@)

%$(suffixInt).tex: %.md lenaisten-defs.sty
	python3 ./redact.py -i $< | $(call compile_md,latex,-,$@)