.PHONY: all build build-daemon build-ctl test test-contrib vet coverage freebsd build-linux clean help

# ====================================================================================
# Variables
# ====================================================================================

BINARY ?= migadu_counters
CTL_BINARY ?= counterctl
BIN_DIR ?= ./bin
SRC = ./cmd/migadu_counters
CTL_SRC = ./cmd/counterctl

# Version information (falls back when not in a git checkout)
VERSION ?= $(shell git describe --tags --always --dirty --match='v*' 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_VARS = -X 'main.version=${VERSION}' -X 'main.commit=${COMMIT}' -X 'main.date=${DATE}'
LDFLAGS = -ldflags="${LDFLAGS_VARS}"

# Cross-compilation (FreeBSD hosts run these under rc.d + daemon(8))
FREEBSD_BINARY ?= migadu_counters-freebsd-amd64
CTL_FREEBSD_BINARY ?= counterctl-freebsd-amd64
LINUX_BINARY ?= migadu_counters-linux-amd64
CTL_LINUX_BINARY ?= counterctl-linux-amd64

# ====================================================================================
# Targets
# ====================================================================================

all: build

build: build-daemon build-ctl

build-daemon:
	@mkdir -p $(BIN_DIR)
	go build $(LDFLAGS) -o $(BIN_DIR)/$(BINARY) $(SRC)

build-ctl:
	@mkdir -p $(BIN_DIR)
	go build $(LDFLAGS) -o $(BIN_DIR)/$(CTL_BINARY) $(CTL_SRC)

test:
	go test -race ./...

# Shell test for contrib/pull-domains.sh (needs tinycdb's cdb and rsync).
test-contrib:
	bash contrib/pull-domains_test.sh

vet:
	go vet ./...
	@test -z "$$(gofmt -l . | grep -v -e '^test_files/' -e '^review/')" || (echo "gofmt needed:" && gofmt -l . | grep -v -e '^test_files/' -e '^review/' && exit 1)

coverage:
	go test -coverprofile=coverage.out ./...
	go tool cover -html=coverage.out

freebsd:
	@mkdir -p $(BIN_DIR)
	CGO_ENABLED=0 GOOS=freebsd GOARCH=amd64 go build -ldflags="${LDFLAGS_VARS}" -o $(BIN_DIR)/$(FREEBSD_BINARY) $(SRC)
	CGO_ENABLED=0 GOOS=freebsd GOARCH=amd64 go build -ldflags="${LDFLAGS_VARS}" -o $(BIN_DIR)/$(CTL_FREEBSD_BINARY) $(CTL_SRC)

build-linux:
	@mkdir -p $(BIN_DIR)
	CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -ldflags="${LDFLAGS_VARS}" -o $(BIN_DIR)/$(LINUX_BINARY) $(SRC)
	CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -ldflags="${LDFLAGS_VARS}" -o $(BIN_DIR)/$(CTL_LINUX_BINARY) $(CTL_SRC)

clean:
	rm -rf $(BIN_DIR) coverage.out

help:
	@echo "Targets:"
	@echo "  build        Build migadu_counters and counterctl into $(BIN_DIR)"
	@echo "  test         go test -race ./..."
	@echo "  test-contrib Shell test for contrib/pull-domains.sh"
	@echo "  vet          go vet + gofmt check"
	@echo "  coverage     Coverage report"
	@echo "  freebsd      Cross-compile static FreeBSD amd64 binaries"
	@echo "  build-linux  Cross-compile static Linux amd64 binaries"
	@echo "  clean        Remove build artifacts"