SRCDIR  := $(abspath $(lastword $(MAKEFILE_LIST))/../..)
FONTDIR := ../build/fonts
BIN     := $(SRCDIR)/build/venv/bin
VENV    := ../build/venv/bin/activate
export PATH := $(BIN):$(PATH)

HTTP_SERVER_BIND_ADDR ?= 127.0.0.1

default:
	@echo "Please specify a target: build, serve, dist" >&2

build: .ruby-bundle
	rm -rf _site
	bundle exec jekyll build

build-tmp: .ruby-bundle
	rm -rf _site-tmp
	bundle exec jekyll build --disable-disk-cache -b /tmp/inter-v4-website/ -d _site-tmp

serve: .ruby-bundle
	if [ ! -s lab/fonts ]; then \
		[ ! -s lab/fonts/fonts ] || rm lab/fonts/fonts; \
		rm -f lab/fonts && ln -fs ../../build/fonts lab/fonts; \
	fi
	@# need to delete generated content so that jekyll, being a little dumb,
	@# can manage to copy the font files into there again.
	@# Why not a symlink you ask? Jekyll traverses it and copies the content.
	@# In the past we tried to work around this by periodically removing the
	@# copied font files and re-creating the symlink, but it was a frail process.
	@# For live testing with fonts, you'll instead want to use docs/lab/serve.py
	rm -rf _site
	bundle exec jekyll serve -b / --watch \
		--config _config.yml,_config-dev.yml \
	  --host $(HTTP_SERVER_BIND_ADDR) --port 3002 \
	  --livereload --livereload-port 30002

serve-pub:
	exec $(MAKE) HTTP_SERVER_BIND_ADDR=0.0.0.0 serve

optimize-images:
	for f in res/*.png; do \
		optipng -quiet "$$f" & \
	done ; \
	wait

.ruby-bundle: Gemfile Gemfile.lock
	@if ! (command -v bundle >/dev/null && command -v jekyll >/dev/null); then \
	  echo "Please install Ruby bundle and jekyll: gem install bundler jekyll" >&2; \
	  exit 1; \
	fi
	bundle update
	bundle install
	touch .ruby-bundle

# -----------------------------------------------------------------------

dist: fonts info lab/index.html

info: _data/fontinfo.json lab/glyphinfo.json

fonts:
	rm -rf font-files/Inter*
	mkdir -p font-files
	cp -a $(FONTDIR)/static/Inter*.woff2 \
	      $(FONTDIR)/var/Inter-Variable.woff2 \
	      $(FONTDIR)/var/Inter-Variable-Italic.woff2 \
	      $(FONTDIR)/var/Inter-Variable.ttf \
	      font-files/

lab/index.html: ../version.txt
	. $(VENV); python ../misc/tools/patch-version.py $@

_data/fontinfo.json: ../misc/tools/fontinfo.py
	. $(VENV); python ../misc/tools/fontinfo.py -pretty font-files/Inter-Regular.otf > _data/fontinfo.json

lab/glyphinfo.json: ../misc/tools/gen-glyphinfo.py \
                    ../build/ufo/Inter-Regular.ufo \
                    ../misc/UnicodeData.txt
	. $(VENV); python ../misc/tools/gen-glyphinfo.py \
		-ucd ../misc/UnicodeData.txt ../build/ufo/Inter-Regular.ufo > $@

.PHONY: default build build-tmp serve serve-pub dist info fonts