DATADIR  = data
TMPDIR   = _tmp
BUILDDIR = _build

# SMALL = thumbnails, MED = single pages (link to full size)
SMALL := 200
MED   := 1200

MAKEPAGES = cabal -v0 run -- make-pages

YAMLS != find $(DATADIR) -iname "*.yaml"

all:

define copy =
echo "[copy]   "$@
cp $< $@
endef

ifneq ($(BUILDDIR),$(DATADIR))
$(BUILDDIR)/%: $(DATADIR)/%
	@$(call copy)
endif

$(BUILDDIR)/nsfw/%: $(DATADIR)/%
	@$(call copy)


define resize =
echo "[resize] "$@
mkdir -p $(dir $@)
convert -resize "$(1)x$(1)$(2)" $(3) $< $@
endef

crop = -gravity center -crop 1:1+0

$(BUILDDIR)/%_small.png: $(DATADIR)/%.png
	@$(call resize,$(SMALL),^,$(crop))

$(BUILDDIR)/%_med.png: $(DATADIR)/%.png
	@$(call resize,$(MED),>)

$(BUILDDIR)/nsfw/%_small.png: $(DATADIR)/%.png
	@$(call resize,$(SMALL),^,$(crop))

$(BUILDDIR)/nsfw/%_med.png: $(DATADIR)/%.png
	@$(call resize,$(MED),>)


define single =
echo "[single] "$@
mkdir -p $(dir $@)
$(MAKEPAGES) single $< -o $@ $(1)
endef

$(BUILDDIR)/%/index.html: $(DATADIR)/%/info.yaml
	@$(call single)

$(BUILDDIR)/nsfw/%/index.html: $(DATADIR)/%/info.yaml
	@$(call single,-n)

define depend-single =
echo "[deps]   "$@
mkdir -p $(dir $@)
$(MAKEPAGES) depend-single $< -o $@ $(1)
endef

$(TMPDIR)/%.d: %.yaml
	@$(call depend-single)

$(TMPDIR)/nsfw/%.d: %.yaml
	@$(call depend-single,-n -p nsfw)

include $(TMPDIR)/$(YAMLS:.yaml=.d)
include $(TMPDIR)/nsfw/$(YAMLS:.yaml=.d)

.PHONY: clean distclean
clean:
	rm -rf $(BUILDDIR) $(TMPDIR)
distclean: clean
	rm -rf dist-newstyle