BINARY  := ssm
MODULE  := gitea.epss.net.cn/klesh/ss
VERSION ?= dev
DIST    := dist

LDFLAGS := -s -w -X $(MODULE)/internal/cli.Version=$(VERSION)

# os/arch pairs matching the 3 major platforms this project ships for.
PLATFORMS := linux/amd64 darwin/arm64 windows/amd64

.DEFAULT_GOAL := build

.PHONY: build build-all test vet fmt clean release package help

build: ## Build the ssm binary for the current platform
	go build -trimpath -ldflags "$(LDFLAGS)" -o $(BINARY) ./cmd/$(BINARY)

build-all: clean ## Cross-compile ssm for linux/amd64, darwin/arm64, windows/amd64 into dist/<os>-<arch>/, unpackaged
	@for platform in $(PLATFORMS); do \
		os=$${platform%/*}; arch=$${platform#*/}; \
		ext=""; [ "$$os" = "windows" ] && ext=".exe"; \
		echo "==> building $$os/$$arch"; \
		mkdir -p $(DIST)/$$os-$$arch; \
		GOOS=$$os GOARCH=$$arch go build -trimpath -ldflags "$(LDFLAGS)" -o $(DIST)/$$os-$$arch/$(BINARY)$$ext ./cmd/$(BINARY) || exit 1; \
	done

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

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

fmt: ## Check formatting (gofmt -l)
	gofmt -l .

clean: ## Remove build/release artifacts
	rm -rf $(DIST) $(BINARY) $(BINARY).exe

release: build-all ## Cross-compile for linux/amd64, darwin/arm64, windows/amd64 and package into dist/
	@$(MAKE) --no-print-directory package

package: ## Archive dist/<os>-<arch>/ directories into per-platform tar.gz/zip + checksums.txt
	@cd $(DIST) && \
	for platform in $(PLATFORMS); do \
		os=$${platform%/*}; arch=$${platform#*/}; \
		name=$(BINARY)-$(VERSION)-$$os-$$arch; \
		if [ "$$os" = "windows" ]; then \
			(cd $$os-$$arch && zip -q ../$$name.zip $(BINARY).exe); \
		else \
			tar -C $$os-$$arch -czf $$name.tar.gz $(BINARY); \
		fi; \
		rm -rf $$os-$$arch; \
	done; \
	sha256sum *.tar.gz *.zip > checksums.txt; \
	ls -la

help: ## Show this help
	@grep -E '^[a-zA-Z_-]+:.*## ' $(MAKEFILE_LIST) | awk 'BEGIN {FS = ":.*## "}; {printf "  %-10s %s\n", $$1, $$2}'