# transocks makefile
# ==================

SHELL			:= /usr/bin/env bash

PROJECT_ID 		:= transocks
PROJECT_NAME	?= Transocks
BIN_SUFFIX		:=

TMPDIR			?= $(CURDIR)/tmp
OUTDIR			?= $(CURDIR)/out
BINDIR			?= $(OUTDIR)/bin

VERSION			?= $(strip $(shell ./scripts/version.sh))
VERSION_NUMBER	:= $(strip $(shell ./scripts/version.sh number))

GOOS			?= $(shell go env GOOS)
GOARCH			?= $(shell go env GOARCH)

GO_LDFLAGS		?=
GO_OPT_V		:= -X "main.version=$(VERSION)"
GO_OPT_APP		:= -X "main.appname=$(PROJECT_NAME)"
GO_OPT_BASE		:= -ldflags '$(GO_OPT_V) $(GO_OPT_APP) $(GO_LDFLAGS)'
GO_OPT			?=
EXPORT_RESULT 	?= false # for CI please set EXPORT_RESULT to true

GOCMD			:= go
GOTEST			:= $(GOCMD) test
GOVET			:= $(GOCMD) vet
ECHO_CMD		:= echo -e

DIST_EXT		:= .tar.gz
DIST_OPTS		:= -czf
PKG_NAME		:= $(PROJECT_ID)_$(VERSION)_$(GOOS)-$(GOARCH)
DIST_FILE		:= $(PKG_NAME)$(DIST_EXT)
PKG_ARCH		:= $(GOARCH)

ifeq ($(PKG_ARCH),arm)
	PKG_ARCH = armhf
endif

GREEN  := $(shell tput -Txterm setaf 2)
YELLOW := $(shell tput -Txterm setaf 3)
WHITE  := $(shell tput -Txterm setaf 7)
CYAN   := $(shell tput -Txterm setaf 6)
RESET  := $(shell tput -Txterm sgr0)

.DEFAULT_GOAL := all

version: ## Version of the project to be built
	@echo $(VERSION)
.PHONY:version

version-number: ## Version number of the project to be built
	@echo $(VERSION_NUMBER)
.PHONY:version-number

## Build

all: clean vendor build ## Build binary
.PHONY:all

clean: ## Remove build related files
	@rm -fr $(TMPDIR)
	@rm -fr $(OUTDIR)
	@$(ECHO_CMD) "Clean\t\t${GREEN}[OK]${RESET}"
.PHONY:clean

vendor: ## Copy of all packages needed to support builds and tests in the vendor directory
	$(GOCMD) mod vendor
	@$(ECHO_CMD) "Vendor\t\t${GREEN}[OK]${RESET}"
.PHONY:vendor

APPS := $(patsubst cmd/%/, %, $(dir $(wildcard cmd/*/main.go)))

build: $(addprefix $(BINDIR)/, $(APPS)) ## Build your project and put the output binary in out/bin/
	@mkdir -p $(BINDIR)
	@$(ECHO_CMD) "Build\t\t${GREEN}[OK]${RESET}"
.PHONY:build

$(BINDIR)/%: cmd/%/main.go $(patsubst cmd/%/main.go,cmd/%/*.go,$<)
	@rm -f "$(BINDIR)/$(BIN_PREFIX)$(patsubst cmd/%/main.go,%,$<)$(BIN_SUFFIX)"
	$(GOCMD) build $(GO_OPT_BASE) $(GO_OPT) \
	-o "$(BINDIR)/$(BIN_PREFIX)$(patsubst cmd/%/main.go,%,$<)$(BIN_SUFFIX)" \
	$(patsubst %/main.go,./%,$<)

dist: ## Create binary distro package
	@rm -f "$(OUTDIR)/$(DIST_FILE)"
	tar $(DIST_OPTS) "$(OUTDIR)/$(DIST_FILE)" -C "$(OUTDIR)" bin
	@$(ECHO_CMD) "Dist\t\t${GREEN}[OK]${RESET}"
.PHONY:dist

DEB_NAME := $(PROJECT_ID)_$(VERSION_NUMBER)-1_$(PKG_ARCH)

pkg-deb: ## Build debian package
	@rm -rf $(TMPDIR)
	@mkdir -p $(TMPDIR)/$(DEB_NAME)/DEBIAN
	@mkdir -p $(TMPDIR)/$(DEB_NAME)/etc
	@mkdir -p $(TMPDIR)/$(DEB_NAME)/usr/bin
	@cp $(CURDIR)/configs/transocks.example.toml $(TMPDIR)/$(DEB_NAME)/etc/transocks.toml
	@cp -a $(BINDIR)/* $(TMPDIR)/$(DEB_NAME)/usr/bin/
	@sed -e "s/VERSION/$(VERSION_NUMBER)/g" \
		$(CURDIR)/build/package/debian/changelog.tpl \
		> $(TMPDIR)/changelog
	@sed -e "s/ARCH/$(PKG_ARCH)/g" $(CURDIR)/build/package/debian/control.tpl \
		> $(TMPDIR)/control
	DEB_HOST_ARCH=$(PKG_ARCH) dpkg-gencontrol -v$(VERSION_NUMBER)-1 \
		-c$(TMPDIR)/control \
		-l$(TMPDIR)/changelog \
		-f$(TMPDIR)/$(DEB_NAME)/DEBIAN/files -Ptmp/$(DEB_NAME)
	dpkg-deb --build --root-owner-group $(TMPDIR)/$(DEB_NAME)
	dpkg-genchanges --build=binary \
		-c$(TMPDIR)/control \
		-l$(TMPDIR)/changelog \
		-f$(TMPDIR)/$(DEB_NAME)/DEBIAN/files \
		-u$(TMPDIR) -O$(OUTDIR)/$(DEB_NAME).changes
	@mv $(TMPDIR)/*.deb $(OUTDIR)/
	@$(ECHO_CMD) "pkg-deb\t\t${GREEN}[OK]${RESET}"
.PHONY:pkg-deb

## Deploy

deploy-deb: ## Deploy debian packages
	find -O1 $(OUT_DIR) -name '*.changes' -exec dput mousesoft \{\} \;
.PHONY:deploy-deb

## Test

test: ## Run the tests of the project
ifeq ($(EXPORT_RESULT), true)
	@mkdir -p $(OUTDIR)
	$(eval OUTPUT_OPTIONS = | go-junit-report -set-exit-code > $(OUTDIR)/junit-report.xml)
endif
	$(GOTEST) -v $(GO_OPT) ./... $(OUTPUT_OPTIONS)
	@$(ECHO_CMD) "Test\t\t${GREEN}[OK]${RESET}"
.PHONY:test


## Lint

lint: ## Run all available linters.
	go vet ./...
	errcheck ./...
	staticcheck ./...
	usestdlibvars ./...
	shadow ./...
	@$(ECHO_CMD) "Lint\t\t${GREEN}[OK]${RESET}"
.PHONY:lint

golangci-lint: ## Run golangci-lint linter
	@golangci-lint run
	@$(ECHO_CMD) "GolangCI Lint\t${GREEN}[OK]${RESET}"
.PHONY:golangci-lint

## Help

help: ## Show this help.
	@$(ECHO_CMD) ''
	@$(ECHO_CMD) 'Usage:'
	@$(ECHO_CMD) '  ${YELLOW}make${RESET} ${GREEN}<target>${RESET}'
	@$(ECHO_CMD) ''
	@$(ECHO_CMD) 'Targets:'
	@awk 'BEGIN {FS = ":.*?## "} { \
		if (/^[a-zA-Z_-]+:.*?##.*$$/) {printf "    ${YELLOW}%-20s${GREEN}%s${RESET}\n", $$1, $$2} \
		else if (/^## .*$$/) {printf "  ${CYAN}%s${RESET}\n", substr($$1,4)} \
		}' $(MAKEFILE_LIST)
.PHONY:help