SHELL := /bin/bash
DOCKER_IMAGE_NAME := registry.ubicast.net/mediaserver/envsetup
VENV := /tmp/pyvensetup
PIP_BIN = $(shell command -v $(VENV)/bin/pip3 || command -v pip3 || echo pip3)
PIP_COMPILE_BIN = $(shell command -v $(VENV)/bin/pip-compile || command -v pip-compile)
ANSIBLE_BIN = $(shell command -v ansible || command -v $(VENV)/bin/ansible)
ANSIBLE_PLAYBOOK_BIN = $(shell command -v ansible-playbook || command -v $(VENV)/bin/ansible-playbook)
ANSIBLE_LINT_BIN = $(shell command -v ansible-lint || command -v $(VENV)/bin/ansible-lint)
YAMLLINT_BIN = $(shell command -v yamllint || command -v $(VENV)/bin/yamllint)
FLAKE8_BIN = $(shell command -v flake8 || command -v $(VENV)/bin/flake8)

# molecule tests flags
ifdef debug
	MOLECULE_FLAGS += --debug
endif
ifdef keep
	MOLECULE_TEST_FLAGS += --destroy=never
endif

.PHONY: all
## TARGET: DESCRIPTION: ARGS
all: help

.PHONY: venv
## venv: Install python3-venv and create a temporary virtualenv
venv:
	-@command -v apt-get >/dev/null && apt-get update && apt-get install -y python3-venv
	@command -v $(PIP_BIN) > /dev/null || python3 -m venv $(VENV)

## requirements.txt: Update requirements and their dependencies
## requirements.dev.txt: Update development requirements and their dependencies
%.txt: %.in
	$(PIP_COMPILE_BIN) -U $^ -o $@
	chmod 644 $@

.PHONY: install
## install: Install requirements
install: venv
	$(PIP_BIN) install -U pip wheel
	$(PIP_BIN) install -r requirements.txt

.PHONY: install-dev
## install-dev: Install development requirements
install-dev: install
	$(PIP_BIN) install -r requirements.dev.txt
	ln -sfv .githooks/pre-commit .git/hooks/

.PHONY: lint
## lint: Run linters on the project
lint:
	$(FLAKE8_BIN) .
	$(YAMLLINT_BIN) .
	$(ANSIBLE_LINT_BIN) site.yml

.PHONY: test
## test: Run development tests on the project : debug=1, keep=1, SKYREACH_SYSTEM_KEY=<xxx>
test:
ifndef SKYREACH_SYSTEM_KEY
	$(error SKYREACH_SYSTEM_KEY is undefined)
endif
	molecule $(MOLECULE_FLAGS) test $(MOLECULE_TEST_FLAGS)

.PHONY: deploy
## deploy: Run deployment playbooks : i=<inventory-path>, l=<host-or-group>, t=<tag>
deploy:
ifndef i
	$(error i is undefined)
endif
ifndef l
	$(eval l=all)
endif
ifndef t
	$(eval t=all)
endif
	$(ANSIBLE_BIN) -i $(i) -l $(l) -m ping all
	$(ANSIBLE_PLAYBOOK_BIN) -i $(i) site.yml -e conf_update=true -l $(l) -t $(t)

.PHONY: image-validate
## image-validate: Check that Packer image is valid : build=<path-to-packer-file>
image-validate:
ifndef build
	$(error build is undefined)
endif
	packer validate $(build)

.PHONY: image
## image: Run Packer image build : build=<path-to-packer-file>
image: image-validate
	packer build -on-error=ask -force $(build)

.PHONY: docker-build
## docker-build: Run docker image build for CI and devcontainer
docker-build: docker-pull
	docker build -t $(DOCKER_IMAGE_NAME) -f .devcontainer/Dockerfile .
	docker build -t $(DOCKER_IMAGE_NAME):root -f .devcontainer/Dockerfile.root .

.PHONY: docker-rebuild
## docker-rebuild: Force docker image rebuild
docker-rebuild:
	docker build --pull --no-cache -t $(DOCKER_IMAGE_NAME) -f .devcontainer/Dockerfile .
	docker build --pull --no-cache -t $(DOCKER_IMAGE_NAME):root -f .devcontainer/Dockerfile.root .

.PHONY: docker-pull
## docker-pull: Pull Docker image from registry
docker-pull:
	-docker pull $(DOCKER_IMAGE_NAME)
	-docker pull $(DOCKER_IMAGE_NAME):root

.PHONY: docker-push
## docker-push: Push Docker image to registry
docker-push:
	docker push $(DOCKER_IMAGE_NAME)
	docker push $(DOCKER_IMAGE_NAME):root

.PHONY: help
## help: Print this help message
help:
	@echo -e "Usage: \n"
	@sed -n 's/^##//p' ${MAKEFILE_LIST} | column -t -s ':' | sed -e 's/^/ /'