DOCKER ?= docker
APPTAINER ?= apptainer
OVERLAY_DIR ?= ./overlay
SHARED_DIR ?= ./shared
MAX_THREADS ?= $(shell grep -c processor /proc/cpuinfo)

UID := $(shell id -u)
GID := $(shell id -g)

.DEFAULT_GOAL := .docker_build

.docker_build: Dockerfile
	"$(DOCKER)" build --build-arg "MAX_THREADS=$(MAX_THREADS)" -t mobileinsight .
	touch "$@"

mobileinsight.tar.gz: .docker_build
	"$(DOCKER)" save mobileinsight:latest | gzip > "$@"

mobileinsight.sif: mobileinsight.def .docker_build
	"$(APPTAINER)" build "$@" "$<"

run: .docker_build
	@mkdir -p "$(SHARED_DIR)"
	@test -n "$(shell docker image ls -q mobileinsight)" \
		|| (echo Cannot find image mobileinsight:latest, has it been built yet? 1>&2 \
		&& false)
	@"$(DOCKER)" run --rm -it --privileged -v "$(SHARED_DIR):/mnt" \
		-e TERM -u root --entrypoint bash mobileinsight:latest

app-run: mobileinsight.sif
	@mkdir -p "$(OVERLAY_DIR)"
	@lsmod | grep overlay > /dev/null || sudo modprobe overlay
	@$(APPTAINER) run --overlay "$(OVERLAY_DIR)" \
		-B "/run/user/$(UID)" mobileinsight.sif

clean:
	"$(DOCKER)" container prune
	"$(DOCKER)" image prune -a
	rm -f .docker_build mobileinsight.tar.gz mobileinsight.sif

clean-data:
	rm -rf $(OVERLAY_DIR) $(SHARED_DIR)

.PHONY: sc-run run clean clean-data