FONTS  = $(shell find fonts -type f)
CSS    = style.css
PAGES  = index.html
IMAGES = \
  mlem.gif mlem_static.png icon.png \
  niss_uwu_bg_dim.png niss_uwu_bg.png \
  star_small.png sparkles_large.png niss_wave_large.png \
  shortcake_large.png

BUILDDIR ?= _build
TMPDIR   ?= _tmp

HOST ?= yummy.cricket
REMOTE_USER ?= www-data
IDFILE ?= ~/.ssh/xyz
REMOTE_DIR ?= yummy

all: build

build: $(patsubst %,$(BUILDDIR)/%,$(FONTS) $(CSS) $(PAGES) $(IMAGES))

upload: build
	@rsync -rPLzh --delete -e 'ssh -l $(REMOTE_USER) -i $(IDFILE)' \
	  $(BUILDDIR)/ $(HOST):$(REMOTE_DIR)/

$(BUILDDIR)/%: %
	@echo $*
	@mkdir -p $(dir $@)
	@cp $< $@

$(BUILDDIR)/%.gif: %_bg.gif
	@echo $(notdir $@)
	@mkdir -p $(dir $(BUILDDIR)/$* $(TMPDIR)/$*)
	@gifsicle -U $*_bg.gif -o $(TMPDIR)/$*_bg_u.gif
	@convert -transparent '#ff9bc7' $(TMPDIR)/$*_bg_u.gif $(TMPDIR)/$*_t.gif
	@gifsicle --disposal=previous $(TMPDIR)/$*_t.gif -o $(BUILDDIR)/$*.gif

$(BUILDDIR)/%_small.png: %.svg
	@echo $(notdir $@)
	@mkdir -p $(dir $@)
	@inkscape -e $@ -h 16 $< >/dev/null

$(BUILDDIR)/%_large.png: %.svg
	@echo $(notdir $@)
	@mkdir -p $(dir $@)
	@inkscape -e $@ -h 30 $< >/dev/null

$(BUILDDIR)/%_dim.png: %.png
	@echo $(notdir $@)
	@convert -channel A -evaluate Multiply 0.75 $< $@

clean:
	$(RM) -r $(TMPDIR) $(BUILDDIR)

.PHONY: clean all build upload