#!/usr/bin/make -f

# Common variables
REPO ?= $(shell go list -m)
VERSION ?= $(shell git describe --tags --dirty --match "v*" --always --abbrev=8 2>/dev/null || cat VERSION 2>/dev/null || echo "develop")
GO_VERSION ?= 1.22
LINT_VERSION ?= 1.60.1
TRUECLOUDLAB_LINT_VERSION ?= 0.0.6
BINDIR = bin

OUTPUT_LINT_DIR ?= $(BINDIR)/linters
LINT_DIR = $(OUTPUT_LINT_DIR)/golangci-lint-$(LINT_VERSION)-v$(TRUECLOUDLAB_LINT_VERSION)
TMP_DIR := .cache

# Binaries to build
CMDS = $(addprefix frostfs-, $(notdir $(wildcard cmd/*)))
BINS = $(addprefix $(BINDIR)/, $(CMDS))

.PHONY: all $(BINS) $(BINDIR) dep docker/ test cover format lint docker/lint pre-commit unpre-commit version clean

# Make all binaries
all: $(BINS)

$(BINS): $(BINDIR) dep
	@echo "⇒ Build $@"
	CGO_ENABLED=0 \
	go build -v -trimpath \
	-ldflags "-X $(REPO)/internal/version.Version=$(VERSION)" \
	-o $@ ./cmd/$(subst frostfs-,,$(notdir $@))

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

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

# Run `make %` in Golang container, for more information run `make help.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
test:
	@go test ./... -cover

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

# Reformat code
format:
	@echo "⇒ Processing gofmt check"
	@gofmt -s -w ./

# Install linters
lint-install:
	@rm -rf $(OUTPUT_LINT_DIR)
	@mkdir $(OUTPUT_LINT_DIR)
	@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)

# Run linters
lint:
	@if [ ! -d "$(LINT_DIR)" ]; then \
		make lint-install; \
	fi
	$(LINT_DIR)/golangci-lint run


# Run linters in Docker
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
pre-commit:
	pre-commit install -t pre-commit -t commit-msg

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

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

# Clean up files
clean:
	rm -rf .cache
	rm -rf $(BINDIR)

include help.mk