# Targets:
#   all               Build everything
#   test              Build and test everyything (implies all_check)
#   install           Build and install all OTF files. (currently Mac-only)
#   zip               Build a complete release-grade ZIP archive of all fonts.
#   dist              Create a new release distribution. Does everything.
#
#   all_const         Build all non-variable files
#   all_const_hinted  Build all non-variable files with hints
#   all_var           Build all variable files
#   all_var_hinted    Build all variable files with hints (disabled)
#
#   all_otf           Build all OTF files into FONTDIR/const
#   all_ttf           Build all TTF files into FONTDIR/const
#   all_ttf_hinted    Build all TTF files with hints into FONTDIR/const-hinted
#   all_web, web      Build all WOFF files into FONTDIR/const
#   all_web_hinted    Build all WOFF files with hints into FONTDIR/const-hinted
#   all_var           Build all variable font files into FONTDIR/var
#   all_var_hinted    Build all variable font files with hints into
#                     FONTDIR/var-hinted
#
#   designspace       Build build/ufo/Inter.designspace from src/Inter.glyphs
#
# Style-specific targets:
#   STYLE_otf         Build OTF file for STYLE into FONTDIR/const
#   STYLE_ttf         Build TTF file for STYLE into FONTDIR/const
#   STYLE_ttf_hinted  Build TTF file for STYLE with hints into
#                     FONTDIR/const-hinted
#   STYLE_web         Build WOFF files for STYLE into FONTDIR/const
#   STYLE_web_hinted  Build WOFF files for STYLE with hints into
#                     FONTDIR/const-hinted
#   STYLE_check       Build & check OTF and TTF files for STYLE
#
# "build" directory output structure:
#   fonts
#     const
#     const-hinted
#     var
#     var-hinted  (disabled)
#
FONTDIR = build/fonts

all: all_const  all_const_hinted  all_var
web: all_web
.PHONY: all web

all_const: all_otf  all_ttf  all_web
all_const_hinted: all_ttf_hinted  all_web_hinted
var: \
	$(FONTDIR)/var/Inter.var.woff2 \
	$(FONTDIR)/var/Inter.var.otf
all_var: \
	$(FONTDIR)/var/Inter.var.otf \
	$(FONTDIR)/var/Inter.var.woff2 \
	$(FONTDIR)/var/Inter-V.var.otf \
	$(FONTDIR)/var/Inter-V.var.woff2 \
	$(FONTDIR)/var/Inter-roman.var.otf \
	$(FONTDIR)/var/Inter-roman.var.woff2 \
	$(FONTDIR)/var/Inter-italic.var.otf \
	$(FONTDIR)/var/Inter-italic.var.woff2

# Hinted variable font disabled. See https://github.com/rsms/inter/issues/75
# all_var_hinted: $(FONTDIR)/var-hinted/Inter.var.otf $(FONTDIR)/var-hinted/Inter.var.woff2
# .PHONY: all_var_hinted

.PHONY: all_const  all_const_hinted  var  all_var

export PATH := $(PWD)/build/venv/bin:$(PATH)

# generated.make is automatically generated by init.sh and defines depenencies for
# all styles and alias targets
include build/etc/generated.make


# WOFF2 from OTF
build/%.var.woff2: build/%.var.otf
	woff2_compress "$<"

# WOFF2 from TTF
build/%.woff2: build/%.ttf
	woff2_compress "$<"

# WOFF from TTF
build/%.woff: build/%.ttf
	ttf2woff -O -t woff "$<" "$@"



# VF OTF from UFO
$(FONTDIR)/var/Inter.var.otf: $(all_ufo_masters) version.txt
	misc/fontbuild compile-var -o $@ $(FONTBUILD_FLAGS) build/ufo/Inter.designspace

$(FONTDIR)/var/Inter-V.var.otf: $(FONTDIR)/var/Inter.var.otf
	misc/fontbuild rename --family "Inter V" -o $@ $<

$(FONTDIR)/var/Inter-%.var.otf: build/ufo/Inter-%.designspace $(all_ufo_masters) version.txt
	misc/fontbuild compile-var -o $@ $(FONTBUILD_FLAGS) $<
	misc/tools/fix-vf-meta.py $@


# OTF/TTF from UFO
$(FONTDIR)/const/Inter-%.otf: build/ufo/Inter-%.ufo version.txt
	misc/fontbuild compile -o $@ $(FONTBUILD_FLAGS) build/ufo/Inter-$*.ufo

$(FONTDIR)/const/Inter-%.ttf: build/ufo/Inter-%.ufo version.txt
	misc/fontbuild compile -o $@ $(FONTBUILD_FLAGS) build/ufo/Inter-$*.ufo


# DESIGNSPACE from GLYPHS
build/ufo/Inter-roman.designspace: build/ufo/Inter.designspace
build/ufo/Inter-italic.designspace: build/ufo/Inter.designspace
build/ufo/Inter.designspace: src/Inter.glyphs
	@mkdir -p build/ufo
	misc/fontbuild glyphsync -o build/ufo src/Inter.glyphs


# short-circuit Make for performance
src/Inter.glyphs:
	@true

# make sure intermediate files are not gc'd by make
.PRECIOUS: build/ufo/Inter-*.designspace

designspace: build/ufo/Inter.designspace
.PHONY: designspace


# features
src/features: $(wildcard src/features/*)
	@touch "$@"
	@true
build/ufo/features: src/features
	@mkdir -p build/ufo
	@rm -f build/ufo/features
	@ln -s ../../src/features build/ufo/features

# make sure intermediate UFOs are not gc'd by make
.PRECIOUS: build/ufo/Inter-%.ufo

# Note: The seemingly convoluted dependency graph above is required to
# make sure that glyphsync and instancegen are not run in parallel.


# hinted TTF files via autohint
$(FONTDIR)/const-hinted/%.ttf: $(FONTDIR)/const/%.ttf
	mkdir -p "$(dir $@)"
	ttfautohint --fallback-stem-width=256 --no-info "$<" "$@"

# python -m ttfautohint --fallback-stem-width=256 --no-info "$<" "$@"

# $(FONTDIR)/var-hinted/%.ttf: $(FONTDIR)/var/%.ttf
# 	mkdir -p "$(dir $@)"
# 	ttfautohint --fallback-stem-width=256 --no-info "$<" "$@"

# make sure intermediate TTFs are not gc'd by make
.PRECIOUS: $(FONTDIR)/const/%.ttf
.PRECIOUS: $(FONTDIR)/const/%.otf
.PRECIOUS: $(FONTDIR)/const-hinted/%.ttf
.PRECIOUS: $(FONTDIR)/var/%.var.otf




# check var
test_var: all_var
	misc/fontbuild checkfont $(FONTDIR)/var/*.otf $(FONTDIR)/var/*.woff2

# test runs all tests
# Note: all_check_const is generated by init.sh and runs "fontbuild checkfont"
# on all otf and ttf files.
test: all_check_const  test_var
	@echo "test: all ok"

# check does the same thing as test, but without any dependency checks, meaning
# it will check whatever font files are already built.
check:
	misc/fontbuild checkfont \
		$(FONTDIR)/const/*.ttf \
		$(FONTDIR)/const/*.otf \
		$(FONTDIR)/const/*.woff2 \
		$(FONTDIR)/var/*.otf \
		$(FONTDIR)/var/*.woff2
	@echo "check: all ok"

.PHONY: test check




# samples renders PDF and PNG samples
samples: $(FONTDIR)/samples all_samples_pdf all_samples_png

$(FONTDIR)/samples/%.pdf: $(FONTDIR)/const/%.otf $(FONTDIR)/samples
	misc/tools/fontsample/fontsample -o "$@" "$<"

$(FONTDIR)/samples/%.png: $(FONTDIR)/const/%.otf $(FONTDIR)/samples
	misc/tools/fontsample/fontsample -o "$@" "$<"

$(FONTDIR)/samples:
	mkdir -p $@

.PHONY: samples



ZD = build/tmp/zip
# intermediate zip target that creates a zip file at build/tmp/a.zip
build/tmp/a.zip:
	@rm -rf "$(ZD)"
	@rm -f  build/tmp/a.zip
	@mkdir -p \
	  "$(ZD)/Inter" \
	  "$(ZD)/Inter (Hinted, for Windows)" \
	  "$(ZD)/Inter (Variable)" \
	  "$(ZD)/Inter (Variable, single axis)" \
	  "$(ZD)/Inter (Web)" \
	  "$(ZD)/Inter V (Variable)"
	@#
	@# copy font files
	cp -a $(FONTDIR)/const/*.otf              "$(ZD)/Inter/"
	@#
	cp -a $(FONTDIR)/const/*.woff \
	      $(FONTDIR)/const/*.woff2 \
	      $(FONTDIR)/var/Inter.var.woff2 \
	      $(FONTDIR)/var/Inter-italic.var.woff2 \
	      $(FONTDIR)/var/Inter-roman.var.woff2 \
	      misc/dist/inter.css \
	                                          "$(ZD)/Inter (Web)/"
	cp -a $(FONTDIR)/const-hinted/*.woff \
	      $(FONTDIR)/const-hinted/*.woff2 \
	      $(FONTDIR)/const-hinted/*.ttf \
	      misc/dist/inter.css \
	      "misc/dist/about hinted fonts.txt" \
	                                          "$(ZD)/Inter (Hinted, for Windows)/"
	@#
	cp -a $(FONTDIR)/var/Inter.var.otf        "$(ZD)/Inter (Variable)/Inter.otf"
	cp -a $(FONTDIR)/var/Inter-roman.var.otf  "$(ZD)/Inter (Variable, single axis)/Inter-roman.otf"
	cp -a $(FONTDIR)/var/Inter-italic.var.otf "$(ZD)/Inter (Variable, single axis)/Inter-italic.otf"
	@#
	cp -a $(FONTDIR)/var/Inter-V.var.otf      "$(ZD)/Inter V (Variable)/Inter-V.otf"
	@#
	@# copy misc stuff
	cp -a misc/dist/install*.txt        "$(ZD)/"
	cp -a LICENSE.txt                   "$(ZD)/"
	@#
	@# zip
	cd "$(ZD)" && zip -q -X -r "../../../$@" * && cd ../..
	@rm -rf "$(ZD)"

# load version, used by zip and dist
VERSION := $(shell cat version.txt)

# distribution zip files
ZIP_FILE_DIST := build/release/Inter-${VERSION}.zip

# zip
build/release/Inter-%.zip: build/tmp/a.zip
	@mkdir -p "$(shell dirname "$@")"
	@mv -f "$<" "$@"
	@echo write "$@"
	@sh -c "if [ -f /usr/bin/open ]; then /usr/bin/open --reveal '$@'; fi"

zip: all
	$(MAKE) check
	$(MAKE) build/release/Inter-${VERSION}-$(shell git rev-parse --short=10 HEAD).zip

zip_dist: pre_dist
	$(MAKE) check
	$(MAKE) ${ZIP_FILE_DIST}

# distribution
pre_dist: all
	@echo "Creating distribution for version ${VERSION}"
	@if [ -f "${ZIP_FILE_DIST}" ]; \
		then echo "${ZIP_FILE_DIST} already exists. Bump version or remove the zip file to continue." >&2; \
		exit 1; \
	fi
	misc/tools/versionize.py

dist: zip_dist
	$(MAKE) -j docs
	@echo "——————————————————————————————————————————————————————————————————"
	@echo ""
	@echo "Next steps:"
	@echo ""
	@echo "1) Commit & push changes"
	@echo ""
	@echo "2) Create new release with ${ZIP_FILE_DIST} at"
	@echo "   https://github.com/rsms/inter/releases/new?tag=v${VERSION}"
	@echo ""
	@echo "3) Bump version in version.txt (to the next future version)"
	@echo ""
	@echo "——————————————————————————————————————————————————————————————————"

.PHONY: zip zip_dist pre_dist dist



docs: docs_fonts
	$(MAKE) -j docs_info

docs_info: docs/_data/fontinfo.json \
           docs/lab/glyphinfo.json \
           docs/glyphs/metrics.json

docs_fonts:
	rm -rf docs/font-files
	mkdir docs/font-files
	cp -a $(FONTDIR)/const/*.woff \
	      $(FONTDIR)/const/*.woff2 \
	      $(FONTDIR)/const/*.otf \
	      $(FONTDIR)/var/*.* \
	      docs/font-files/

.PHONY: docs docs_info docs_fonts

docs/_data/fontinfo.json: docs/font-files/Inter-Regular.otf misc/tools/fontinfo.py
	misc/tools/fontinfo.py -pretty $< > docs/_data/fontinfo.json

docs/lab/glyphinfo.json: misc/tools/gen-glyphinfo.py build/ufo/Inter-Regular.ufo
	misc/tools/gen-glyphinfo.py -ucd misc/UnicodeData.txt build/ufo/Inter-Regular.ufo > $@

docs/glyphs/metrics.json: misc/tools/gen-metrics-and-svgs.py build/ufo/Inter-Regular.ufo
	misc/tools/gen-metrics-and-svgs.py build/ufo/Inter-Regular.ufo


# Helper target to download latest Unicode data. Nothing depends on this.
ucd_version := 12.1.0
update_UnicodeData:
	@echo "# Unicode $(ucd_version)" > misc/UnicodeData.txt
	curl '-#' "https://www.unicode.org/Public/$(ucd_version)/ucd/UnicodeData.txt" >> misc/UnicodeData.txt


# Google fonts
build/googlefonts/%: $(FONTDIR)/%
	misc/fontbuild rename --compact-style -o $@ "$<"

googlefonts: googlefonts_pre googlefonts_all

googlefonts_pre:
	@rm -rf build/googlefonts
	@mkdir -p  build/googlefonts/const  build/googlefonts/var

.PHONY: googlefonts googlefonts_pre




# install targets
install_ttf: all_ttf_const
	@echo "Installing TTF files locally at ~/Library/Fonts/Inter"
	rm -rf ~/'Library/Fonts/Inter'
	mkdir -p ~/'Library/Fonts/Inter'
	cp -va $(FONTDIR)/const/*.ttf ~/'Library/Fonts/Inter'

install_ttf_hinted: all_ttf_hinted
	@echo "Installing autohinted TTF files locally at ~/Library/Fonts/Inter"
	rm -rf ~/'Library/Fonts/Inter'
	mkdir -p ~/'Library/Fonts/Inter'
	cp -va $(FONTDIR)/const-hinted/*.ttf ~/'Library/Fonts/Inter'

install_otf: all_otf
	@echo "Installing OTF files locally at ~/Library/Fonts/Inter"
	rm -rf ~/'Library/Fonts/Inter'
	mkdir -p ~/'Library/Fonts/Inter'
	cp -va $(FONTDIR)/const/*.otf ~/'Library/Fonts/Inter'

install_var_v: $(FONTDIR)/var/Inter-V.var.otf
	mkdir -p ~/'Library/Fonts/Inter'
	cp -va $(FONTDIR)/var/Inter-V.var.otf ~/'Library/Fonts/Inter/Inter-V.otf'

install: install_otf install_var_v

.PHONY: install install_otf install_ttf



# clean removes generated and built fonts in the build directory
clean:
	rm -rvf build/tmp build/fonts build/ufo build/googlefonts

.PHONY: clean