# Try to get the commit hash from 1) git 2) the VERSION file 3) fallback.
LAST_COMMIT := $(or $(shell git rev-parse --short HEAD 2> /dev/null),$(shell head -n 1 VERSION | grep -oP -m 1 "^[a-z0-9]+$$"),"UNKNOWN")

# Try to get the semver from 1) git 2) the VERSION file 3) fallbakc.
VERSION := $(or $(shell git describe --tags --abbrev=0 2> /dev/null),$(shell grep -oP "tag: \K(.*)(?=,)" VERSION),"v0.0.0")

BUILDSTR := ${VERSION} (\#${LAST_COMMIT} $(shell date -u +"%Y-%m-%dT%H:%M:%S%z"))

YARN ?= yarn
GOPATH ?= $(HOME)/go
STUFFBIN ?= $(GOPATH)/bin/stuffbin
FRONTEND_YARN_MODULES = frontend/node_modules
FRONTEND_DIST = frontend/dist
FRONTEND_DEPS = \
	$(FRONTEND_YARN_MODULES) \
	frontend/package.json \
	frontend/vue.config.js \
	frontend/babel.config.js \
	$(shell find frontend/fontello frontend/public frontend/src -type f)

BIN := listmonk
STATIC := config.toml.sample \
	schema.sql queries.sql \
	static/public:/public \
	static/email-templates \
	frontend/dist:/admin \
	i18n:/i18n

.PHONY: build
build: $(BIN)

$(STUFFBIN):
	go install github.com/knadh/stuffbin/...

$(FRONTEND_YARN_MODULES): frontend/package.json frontend/yarn.lock
	cd frontend && $(YARN) install
	touch --no-create $(FRONTEND_YARN_MODULES)

# Build the backend to ./listmonk.
$(BIN): $(shell find . -type f -name "*.go")
	CGO_ENABLED=0 go build -o ${BIN} -ldflags="-s -w -X 'main.buildString=${BUILDSTR}' -X 'main.versionString=${VERSION}'" cmd/*.go

# Run the backend in dev mode. The frontend assets in dev mode are loaded from disk from frontend/dist.
.PHONY: run
run:
	CGO_ENABLED=0 go run -ldflags="-s -w -X 'main.buildString=${BUILDSTR}' -X 'main.versionString=${VERSION}' -X 'main.frontendDir=frontend/dist'" cmd/*.go

# Build the JS frontend into frontend/dist.
$(FRONTEND_DIST): $(FRONTEND_DEPS)
	export VUE_APP_VERSION="${VERSION}" && cd frontend && $(YARN) build
	touch --no-create $(FRONTEND_DIST)


.PHONY: build-frontend
build-frontend: $(FRONTEND_DIST)

# Run the JS frontend server in dev mode.
.PHONY: run-frontend
run-frontend:
	export VUE_APP_VERSION="${VERSION}" && cd frontend && $(YARN) serve

# Run Go tests.
.PHONY: test
test:
	go test ./...

# Bundle all static assets including the JS frontend into the ./listmonk binary
# using stuffbin (installed with make deps).
.PHONY: dist
dist: $(STUFFBIN) build build-frontend pack-bin

# pack-releases runns stuffbin packing on the given binary. This is used
# in the .goreleaser post-build hook.
.PHONY: pack-bin
pack-bin: build-frontend $(BIN) $(STUFFBIN)
	$(STUFFBIN) -a stuff -in ${BIN} -out ${BIN} ${STATIC}

# Use goreleaser to do a dry run producing local builds.
.PHONY: release-dry
release-dry:
	goreleaser --parallelism 1 --rm-dist --snapshot --skip-validate --skip-publish

# Use goreleaser to build production releases and publish them.
.PHONY: release
release:
	goreleaser --parallelism 1 --rm-dist --skip-validate