#!/usr/bin/make -f

REPO ?= $(shell go list -m)
VERSION ?= $(shell git describe --tags --match "v*" --dirty --always --abbrev=8 2>/dev/null || cat VERSION 2>/dev/null || echo "develop")
GO_VERSION ?= 1.21
LINT_VERSION ?= 1.56.1
TRUECLOUDLAB_LINT_VERSION ?= 0.0.5
BINDIR = bin

METRICS_DUMP_OUT ?= ./metrics-dump.json

CMDS = $(notdir $(basename $(wildcard cmd/*)))
BINS = $(addprefix $(BINDIR)/, $(CMDS))

# Variables for docker
REPO_BASENAME = $(shell basename `go list -m`)
HUB_IMAGE ?= "truecloudlab/$(REPO_BASENAME)"
HUB_TAG ?= "$(shell echo ${VERSION} | sed 's/^v//')"

OUTPUT_LINT_DIR ?= $(shell pwd)/bin
LINT_DIR = $(OUTPUT_LINT_DIR)/golangci-lint-$(LINT_VERSION)-v$(TRUECLOUDLAB_LINT_VERSION)
TMP_DIR := .cache

# Make all binaries
.PHONY: all
all: $(BINS)

.PHONY: $(BINS)
$(BINS): $(BINDIR) dep fmts
	@echo "⇒ Build $@"
	CGO_ENABLED=0 \
	go build -v -trimpath \
	-ldflags "-X main.Version=$(VERSION)" \
	-o bin/frostfs-s3-lifecycler ./cmd/$(notdir $@)

.PHONY: $(BINDIR)
$(BINDIR):
	@echo "⇒ Ensure dir: $@"
	@mkdir -p $@

# Pull go dependencies
.PHONY: dep
dep:
	@printf "⇒ Download requirements: "
	@CGO_ENABLED=0 \
	go mod download && echo OK
	@printf "⇒ Tidy requirements: "
	@CGO_ENABLED=0 \
	go mod tidy -v && echo OK

.PHONY: image
image:
	@echo "⇒ Build FrostFS S3 Lifecycler docker image "
	@docker build \
		--build-arg REPO=$(REPO) \
		--build-arg VERSION=$(VERSION) \
		--rm \
		-f .docker/Dockerfile \
		-t $(HUB_IMAGE):$(HUB_TAG) .

.PHONY: image-push
image-push:
	@echo "⇒ Publish image"
    @docker push $(HUB_IMAGE):$(HUB_TAG)

.PHONY: dirty-image
dirty-image:
	@echo "⇒ Build FrostFS S3 Lifecycler dirty docker image "
	@docker build \
        --build-arg REPO=$(REPO) \
        --build-arg VERSION=$(VERSION) \
        --rm \
        -f .docker/Dockerfile.dirty \
        -t $(HUB_IMAGE)-dirty:$(HUB_TAG) .

.PHONY: docker/
docker/%:
	$(if $(filter $*,all $(BINS)), \
		@echo "=> Running 'make $*' in clean Docker environment" && \
		docker run --rm -t \
		  -v `pwd`:/src \
		  -w /src \
		  -u `stat -c "%u:%g" .` \
		  --env HOME=/src \
		  golang:$(GO_VERSION) make $*,\
	  	@echo "supported docker targets: all $(BINS) lint")

# Run tests
.PHONY: test
test:
	@go test ./... -cover

# Run tests with race detection and produce coverage output
.PHONY: cover
cover:
	@go test -v -race ./... -coverprofile=coverage.txt -covermode=atomic
	@go tool cover -html=coverage.txt -o coverage.html

# Run all code formatters
.PHONY: fmts
fmts: fmt imports

# Reformat code
.PHONY: fmt
fmt:
	@echo "⇒ Processing gofmt check"
	@GO111MODULE=on gofmt -s -w ./

# Reformat imports
.PHONY: imports
imports:
	@echo "⇒ Processing goimports check"
	@GO111MODULE=on goimports -w ./

# Install linters
.PHONY: lint-install
lint-install:
	@if [ ! -d "$(LINT_DIR)" ]; then \
		mkdir -p $(TMP_DIR); \
		rm -rf $(TMP_DIR)/linters; \
		git -c advice.detachedHead=false clone --branch v$(TRUECLOUDLAB_LINT_VERSION) https://git.frostfs.info/TrueCloudLab/linters.git $(TMP_DIR)/linters; \
		make -C $(TMP_DIR)/linters lib CGO_ENABLED=1 OUT_DIR=$(OUTPUT_LINT_DIR); \
		rm -rf $(TMP_DIR)/linters; \
		rmdir $(TMP_DIR) 2>/dev/null || true; \
		CGO_ENABLED=1 GOBIN=$(LINT_DIR) go install github.com/golangci/golangci-lint/cmd/golangci-lint@v$(LINT_VERSION); \
	fi

# Run linters
.PHONY: lint
lint: lint-install
	$(LINT_DIR)/golangci-lint --timeout=5m run

# Run linters in Docker
.PHONY: docker/lint
docker/lint:
	docker run --rm -it \
	-v `pwd`:/src \
	-u `stat -c "%u:%g" .` \
	--env HOME=/src \
	golangci/golangci-lint:v$(LINT_VERSION) bash -c 'cd /src/ && make lint'

# Activate pre-commit hooks
.PHONY: pre-commit
pre-commit:
	pre-commit install -t pre-commit -t commit-msg

# Deactivate pre-commit hooks
.PHONY: unpre-commit
unpre-commit:
	pre-commit uninstall -t pre-commit -t commit-msg

.PHONY: clean
clean:
	@rm -rf $(DIRS)

# Show current version
.PHONY: version
version:
	@echo $(VERSION)

# Dump metrics (use METRICS_DUMP_OUT variable to override default out file './metrics-dump.json')
.PHONY: dump-metrics
dump-metrics:
	@go test ./internal/metrics -run TestDescribeAll --tags=dump_metrics --out=$(abspath $(METRICS_DUMP_OUT))

include help.mk