#!/usr/bin/make -f
include /usr/share/dpkg/pkg-info.mk

BUILDS := builds/moment-timezone-with-data.js \
          builds/moment-timezone-with-data-1970-2030.js \
          builds/moment-timezone-with-data-2012-2022.js \
          builds/moment-timezone-with-data-10-year-range.js

TARGETS := $(patsubst %.js,%.min.js,$(BUILDS)) \
           moment-timezone.min.js \
           moment-timezone-utils.min.js

# get TZVER from tzdata
TZVER := $(shell grep -m1 -Po '^# version \K\w+$$' /usr/share/zoneinfo/tzdata.zi)

ifeq (,$(TZVER))
$(error Could not find tzdata version in /usr/share/zoneinfo/tzdata.zi)
endif

BUILT_USING_PKGS := tzdata-legacy
BUILT_USING_VAR := $(shell \
    dpkg-query -f='$${source:Package} (= $${source:Version}), ' \
    -W $(BUILT_USING_PKGS))

all: binary
%:
	dh $@

execute_before_dh_auto_build:
	# Bootstrap the build: a data/packed/latest.json needs to
	# exist with the right tzdata version and it is later rebuilt.
	mkdir -p data/packed
	echo '{ "version": "$(TZVER)", "zones": [], "links": [] }' > \
            data/packed/latest.json

execute_before_dh_gencontrol:
	# Generate substvars.
	echo 'misc:Built-Using=$(BUILT_USING_VAR)' >> debian/substvars

override_dh_auto_build: $(TARGETS)

execute_before_dh_auto_test: tests/zones/zulu.js

override_dh_auto_test:
	grunt nodeunit
	tsc --project ./typing-tests

execute_after_dh_auto_clean:
	rm -rf temp/
	rm -rf data/packed/*
	rm -rf data/unpacked/*
	rm -rf data/meta/*
	rm -rf tests/zones/* tests/countries/*

%/latest.json: %/$(TZVER).json
	ln -sfr $< $@

temp/download/$(TZVER)/NEWS:
	mkdir -p temp/download/$(TZVER)
	ln -s /usr/share/zoneinfo/*.tab temp/download/$(TZVER)/
	zcat /usr/share/doc/tzdata/changelog.gz > temp/download/$(TZVER)/NEWS

data/meta/$(TZVER).json: temp/download/$(TZVER)/NEWS
	grunt data-meta:$(TZVER)

data/unpacked/$(TZVER).json: data/meta/$(TZVER).json
	mkdir -p temp/zic/$(TZVER) temp/zdump/$(TZVER)
	cp -RL /usr/share/zoneinfo/[A-Z]* temp/zic/$(TZVER)/
	# Not supported.
	rm -f temp/zic/$(TZVER)/Factory
	grunt data-zdump:$(TZVER)
	grunt data-collect:$(TZVER)
	grunt data-dedupe:$(TZVER)

data/packed/$(TZVER).json: data/unpacked/$(TZVER).json
	grunt data-pack:$(TZVER)

$(BUILDS): data/meta/latest.json data/packed/latest.json \
    data/unpacked/latest.json moment-timezone.js
	grunt build

builds/moment-timezone.min.js: moment-timezone.js
	uglifyjs $< -o $@

%.min.js: %.js
	uglifyjs $< -o $@

tests/zones/zulu.js tests/countries/countries.js: data/packed/latest.json \
    temp/collect/latest.json
	grunt data-tests