# Requires GNU Make
export LC_ALL = C.UTF-8
export PLEROMA_BUILD_BRANCH = $(shell git rev-parse --abbrev-ref HEAD)

QUILT ::= quilt --quiltrc ../quiltrc

SUBMODULE_NAME ::= akkoma

.PHONY: patch
patch: patch.stamp


GIT_HASH ::= $(shell git rev-parse --short=8 HEAD)
GIT_HASH_OLD ::= $(shell cat git.stamp 2>/dev/null || :)
ifneq ($(GIT_HASH), $(GIT_HASH_OLD))
.PHONY: git.stamp
endif
git.stamp:
	@echo "Collecting buld info"
	@echo $(GIT_HASH) > $@

patches/000_plant-a-forest.patch: patches/000_plant-a-forest.patch.in git.stamp
	@echo "Encoding build info"
	@number="$$(git rev-list --count HEAD)" && \
	hash="$$(git rev-parse --short=8 HEAD)" && \
	sed -e 's/%COMMIT_NUMBER%/'"$$number"'/g' \
	    -e 's/%COMMIT_HASH%/'"$$hash"'/g' \
		$< > $@

submodule.stamp:
	@echo "Ensure submodule is up-to-date"
	@if [ ! -f $(SUBMODULE_NAME)/.git ] || \
			[ ! -f $@ ] || \
			git submodule status $(SUBMODULE_NAME) | grep -qE '^\+' ; then \
		git submodule sync && \
		git submodule update --init && \
		touch $@ ; \
	fi

patch.stamp: submodule.stamp patches/series patches/000_plant-a-forest.patch $(wildcard patches/*.patch)
	@echo "Applying patches"
	@# `pop -a` return 2 if currently no patches applied, thus ignore exit code
	@cd $(SUBMODULE_NAME) && { \
		$(QUILT) pop -qfa; \
		git reset --hard && \
		$(QUILT) push -a; \
	}
	@touch $@


# cleaning
.PHONY: clean
clean:
	rm -f *.stamp
	rm -f patches/000_plant-a-forest.patch

.PHONY: reset
reset: clean
	git -C $(SUBMODULE_NAME) reset --hard

.PHONY: reset-harder
reset-harder: clean
	rm -fr $(SUBMODULE_NAME)/


# mix command proxies
.PHONY: build
build: patch
	cd $(SUBMODULE_NAME) && \
	mix deps.get && \
	mix deps.compile && \
	mix compile

.PHONY: compile
compile: patch
	cd $(SUBMODULE_NAME) && \
	mix compile

.PHONY: migrate
migrate: patch
	cd $(SUBMODULE_NAME) && \
	mix ecto.migrate

.PHONY: server
server: patch
	cd $(SUBMODULE_NAME) && \
	mix phx.server