BINARY  := rip
PKG     := ./cmd/rip
VERSION ?= $(shell git describe --tags --always --dirty 2>/dev/null || echo dev)
COMMIT  ?= $(shell git rev-parse HEAD 2>/dev/null)
DATE    ?= $(shell date -u +%Y-%m-%dT%H:%M:%SZ)

LDFLAGS := -X main.version=$(VERSION) -X main.commit=$(COMMIT) -X main.date=$(DATE)

.DEFAULT_GOAL := build

.PHONY: build
build: ## Build the rip binary
	go build -ldflags "$(LDFLAGS)" -o $(BINARY) $(PKG)

.PHONY: install
install: ## Install rip into GOBIN
	go install -ldflags "$(LDFLAGS)" $(PKG)

.PHONY: test
test: ## Run the test suite
	go test ./...

.PHONY: race
race: ## Run the test suite under the race detector
	go test -race ./...

.PHONY: cover
cover: ## Run tests and report per-package coverage
	go test -coverprofile=coverage.out ./...
	go tool cover -func=coverage.out | tail -1

.PHONY: fmt
fmt: ## Format all Go files
	gofmt -w .

.PHONY: fmt-check
fmt-check: ## Fail if any file is not gofmt-clean
	@out="$$(gofmt -l .)"; \
	if [ -n "$$out" ]; then echo "not gofmt-clean:"; echo "$$out"; exit 1; fi

.PHONY: vet
vet: ## Run go vet
	go vet ./...

.PHONY: lint
lint: ## Run golangci-lint if it is installed
	@if command -v golangci-lint >/dev/null 2>&1; then \
		golangci-lint run; \
	else \
		echo "golangci-lint not installed; skipping"; \
		echo "  go install github.com/golangci/golangci-lint/cmd/golangci-lint@latest"; \
	fi

.PHONY: check
check: fmt-check vet test ## Everything CI runs

.PHONY: clean
clean: ## Remove build and coverage artifacts
	rm -f $(BINARY) coverage.out

.PHONY: help
help: ## List targets
	@grep -hE '^[a-z-]+:.*?## ' $(MAKEFILE_LIST) | awk -F':.*?## ' '{printf "  %-12s %s\n", $$1, $$2}'