.DEFAULT_GOAL := build
VERSION=$(shell cat version)
LDFLAGS="-X main.Version=$(VERSION)"
GOLANGCI_LINT = $(GOPATH)/bin/golangci-lint
GOLANGCI_LINT_VERSION = 1.56.2

.PHONY: help
help:
	@grep -E '^[a-zA-Z_-]+:.*?## .*$$' $(MAKEFILE_LIST) | sort | awk 'BEGIN {FS = ":.*?## "}; {printf "\033[36m%-30s\033[0m %s\n", $$1, $$2}'

$(GOLANGCI_LINT): ## Download Go linter
	curl -sfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s -- -b $(GOPATH)/bin $(GOLANGCI_LINT_VERSION)

.PHONY: lint
lint: $(GOLANGCI_LINT) ## Run Go linter
	$(GOLANGCI_LINT) run -v -c .golangci.yml ./...

.PHONY: test
test: ## Run unit tests and measure code coverage
	(go test -v -race -p=1 -count=1 -tags holster_test_mode -coverprofile coverage.out ./...; ret=$$?; \
		go tool cover -func coverage.out; \
		go tool cover -html coverage.out -o coverage.html; \
		exit $$ret)

.PHONY: bench
bench: ## Run Go benchmarks
	go test ./... -bench . -benchtime 5s -timeout 0 -run='^$$' -benchmem

.PHONY: docker
docker: ## Build Docker image
	docker build --build-arg VERSION=$(VERSION) -t ghcr.io/mailgun/gubernator:$(VERSION) .
	docker tag ghcr.io/mailgun/gubernator:$(VERSION) ghcr.io/mailgun/gubernator:latest

.PHONY: build
build: proto ## Build binary
	go build -v -ldflags $(LDFLAGS) -o gubernator ./cmd/gubernator/main.go

.PHONY: clean
clean: ## Clean binaries
	rm -f gubernator gubernator-cli

.PHONY: clean-proto
clean-proto: ## Clean the generated source files from the protobuf sources
	@echo "==> Cleaning up the go generated files from proto"
	@find . -name "*.pb.go" -type f -delete
	@find . -name "*.pb.*.go" -type f -delete


.PHONY: proto
proto: ## Build protos
	./buf.gen.yaml

.PHONY: certs
certs: ## Generate SSL certificates
	rm certs/*.key || rm certs/*.srl || rm certs/*.csr || rm certs/*.pem || rm certs/*.cert || true
	openssl genrsa -out certs/ca.key 4096
	openssl req -new -x509 -key certs/ca.key -sha256 -subj "/C=US/ST=TX/O=Mailgun Technologies, Inc." -days 3650 -out certs/ca.cert
	openssl genrsa -out certs/gubernator.key 4096
	openssl req -new -key certs/gubernator.key -out certs/gubernator.csr -config certs/gubernator.conf
	openssl x509 -req -in certs/gubernator.csr -CA certs/ca.cert -CAkey certs/ca.key -set_serial 1 -out certs/gubernator.pem -days 3650 -sha256 -extfile certs/gubernator.conf -extensions req_ext
	openssl genrsa -out certs/gubernator_no_ip_san.key 4096
	openssl req -new -key certs/gubernator_no_ip_san.key -out certs/gubernator_no_ip_san.csr -config certs/gubernator_no_ip_san.conf
	openssl x509 -req -in certs/gubernator_no_ip_san.csr -CA certs/ca.cert -CAkey certs/ca.key -set_serial 2 -out certs/gubernator_no_ip_san.pem -days 3650 -sha256 -extfile certs/gubernator_no_ip_san.conf -extensions req_ext
	# Client Auth
	openssl req -new -x509 -days 3650 -keyout certs/client-auth-ca.key -out certs/client-auth-ca.pem -subj "/C=TX/ST=TX/O=Mailgun Technologies, Inc./CN=mailgun.com/emailAddress=admin@mailgun.com" -passout pass:test
	openssl genrsa -out certs/client-auth.key 2048
	openssl req -sha1 -key certs/client-auth.key -new -out certs/client-auth.req -subj "/C=US/ST=TX/O=Mailgun Technologies, Inc./CN=client.com/emailAddress=admin@mailgun.com"
	openssl x509 -req -days 3650 -in certs/client-auth.req -CA certs/client-auth-ca.pem -CAkey certs/client-auth-ca.key -set_serial 3 -passin pass:test -out certs/client-auth.pem
	openssl x509 -extfile certs/client-auth.conf -extensions ssl_client -req -days 3650 -in certs/client-auth.req -CA certs/client-auth-ca.pem -CAkey certs/client-auth-ca.key -set_serial 4 -passin pass:test -out certs/client-auth.pem