BINARY      := speedport-exporter
VERSION     := $(shell git describe --tags --always --dirty 2>/dev/null || echo "dev")
COMMIT      := $(shell git rev-parse --short HEAD 2>/dev/null || echo "none")
DATE        := $(shell date -u +"%Y-%m-%dT%H:%M:%SZ")
LDFLAGS     := -s -w -X main.version=$(VERSION) -X main.commit=$(COMMIT) -X main.date=$(DATE)

GOFLAGS     := -trimpath
PLATFORMS   := linux/amd64 linux/arm64 linux/arm

.PHONY: all build run test clean docker cross

all: build

build:
	go build $(GOFLAGS) -ldflags "$(LDFLAGS)" -o $(BINARY) .

run-status: build
	./$(BINARY) status

run-serve: build
	./$(BINARY) serve

test:
	go test -v ./...

clean:
	rm -f $(BINARY) $(BINARY)-*

# Cross-compile for common platforms (Pi, NAS, etc.)
cross:
	@for platform in $(PLATFORMS); do \
		os=$${platform%/*}; \
		arch=$${platform#*/}; \
		output=$(BINARY)-$${os}-$${arch}; \
		echo "Building $$output..."; \
		GOOS=$$os GOARCH=$$arch CGO_ENABLED=0 \
			go build $(GOFLAGS) -ldflags "$(LDFLAGS)" -o $$output . ; \
	done

# Build for Raspberry Pi specifically (ARMv7 + ARM64)
pi: 
	GOOS=linux GOARCH=arm GOARM=7 CGO_ENABLED=0 \
		go build $(GOFLAGS) -ldflags "$(LDFLAGS)" -o $(BINARY)-linux-armv7 .
	GOOS=linux GOARCH=arm64 CGO_ENABLED=0 \
		go build $(GOFLAGS) -ldflags "$(LDFLAGS)" -o $(BINARY)-linux-arm64 .

docker:
	docker build \
		--build-arg VERSION=$(VERSION) \
		--build-arg COMMIT=$(COMMIT) \
		--build-arg DATE=$(DATE) \
		-t $(BINARY):$(VERSION) .

install: build
	install -m 755 $(BINARY) /usr/local/bin/