# Copyright 2025-2026 Thomas Hintz

# This file is part of Nassella.

# Nassella is free software: you can redistribute it and/or modify it under the
# terms of the GNU Affero General Public License as published by the Free
# Software Foundation, either version 3 of the License, or (at your option) any
# later version.

# Nassella is distributed in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

# You should have received a copy of the GNU Affero General Public License
# along with Nassella. If not, see <https://www.gnu.org/licenses/>.

TERRAFORM_ENV := production

config_dir := ./config/
apps_config := $(config_dir)apps.config

BUTANE := butane -d ${PWD}

ifeq ($(shell command -v docker >/dev/null 2>&1 && echo yes),yes)
	BUTANE := docker run --rm --volume ${PWD}:/pwd --workdir /pwd -i quay.io/coreos/butane:latest -d /pwd
endif

IMAGE_DEPS :=

COMPOSE_ENVS := $(shell if [ -d app/ ]; then find app/ -type f -name '.compose-env'; fi)

ALL_APPS_FILES = $(shell find all-apps/ -type f -name '*')

APP_MAKEFILES := $(shell if [ -d app/ ]; then find app/ -type f -name 'Makefile'; fi)
-include $(APP_MAKEFILES)

# .dirstamp plus && $@ is like make magic to get this rule
# to only run if the contents of all-apps changes
app/.dirstamp: copy-apps.sh $(apps_config) $(ALL_APPS_FILES)
	rm -Rf app/
	mkdir app/
	cp all-apps/app.service app/
	cp all-apps/restic-snapshot.service app/
	./make-top-level-docker-compose.sh $(apps_config) > app/docker-compose.yaml
	./copy-apps.sh $(apps_config) && touch $@

# # compose .env files
# # (compose only supports one .env file at the root by default)
app/.env: $(apps_config) $(COMPOSE_ENVS)
	find app/ -name ".compose-env" -exec cat > app/.env {} +

# Caddy / lb
app/lb/lb.env: $(apps_config) app/.dirstamp make-caddyfile-env.sh
	mkdir -p app/lb
	./make-caddyfile-env.sh $(apps_config) > $@

app/lb/Caddyfile: $(apps_config) app/.dirstamp
	echo "(maintenance_intercept) {" > app/lb/Caddyfile-tmp
	echo "@maintenanceModeActive file /maintenance/maintenance.on {" >> app/lb/Caddyfile-tmp
	echo "  root /" >> app/lb/Caddyfile-tmp
	echo "}" >> app/lb/Caddyfile-tmp
	echo "handle @maintenanceModeActive {" >> app/lb/Caddyfile-tmp
	echo "  respond \"We are performing a maintenance, come back later\" 503" >> app/lb/Caddyfile-tmp
	echo "}" >> app/lb/Caddyfile-tmp
	echo "}" >> app/lb/Caddyfile-tmp
	find app/ -name "Caddyfile" -exec cat >> app/lb/Caddyfile-tmp {} +
	mv app/lb/Caddyfile-tmp $@

# Backups / Restic / Backblaze
restic-env: $(apps_config) make-restic-generated.sh
	./make-restic-generated.sh $(apps_config) > restic-env
restic-password: $(apps_config) make-restic-password.sh
	./make-restic-password.sh $(apps_config) > restic-password

app.tar.gz: app/.dirstamp \
app/.env \
app/lb/lb.env \
app/lb/Caddyfile
	tar cfz app.tar.gz app/

ignition.json: cl.yaml app/.dirstamp \
$(IMAGE_DEPS) \
app/lb/lb.env \
app/lb/Caddyfile \
restic-env \
restic-password \
restic-restore.sh \
restic-snapshot.sh \
restic-scheduled-snapshot.sh \
app/.env \
$(config_dir)ssh-keys \
app.tar.gz
	cat cl.yaml | $(BUTANE) > ignition.json

generated.tfvars: $(apps_config) make-generated.sh
	./make-generated.sh $(apps_config) > generated.tfvars

plan: ignition.json $(config_dir)$(TERRAFORM_ENV).tfvars generated.tfvars
	terraform init
	bash -c "terraform plan -var-file=<(cat $(config_dir)$(TERRAFORM_ENV).tfvars generated.tfvars)"

.PHONY: announce-start
announce-start:
	echo "NASSELLA_CONFIG: start"

# run this first to generate the all/ dir
# then we can 'include' all the Makefiles in all/
.PHONY: preapply
preapply: app/.dirstamp
	echo "app generated"

apply: announce-start restic-init ignition.json $(config_dir)$(TERRAFORM_ENV).tfvars generated.tfvars
	echo "NASSELLA_CONFIG: end"
	terraform init
	bash -c "terraform apply -auto-approve -input=false -var-file=<(cat $(config_dir)$(TERRAFORM_ENV).tfvars generated.tfvars)"

destroy: ignition.json $(config_dir)$(TERRAFORM_ENV).tfvars generated.tfvars
	terraform init
	bash -c "terraform destroy -auto-approve -input=false -var-file=<(cat $(config_dir)$(TERRAFORM_ENV).tfvars generated.tfvars)"

.PHONY: restic-init
restic-init: $(apps_config) restic-password
	./init-restic.sh $(apps_config)

## just an easy way to see snapshots that have been taken
.PHONY: restic-snapshots
restic-snapshots: $(apps_config) restic-password
	./restic-snapshots.sh $(apps_config)

.PHONY: archive
archive:
	echo "(" > all-apps/root-napp.scm
	find all-apps/ -name "napp.scm" -exec cat >> all-apps/root-napp.scm {} +
	echo ")" >> all-apps/root-napp.scm
	tar -cf nassella-latest.tar all-apps cl.yaml init-restic.sh main.tf make-caddyfile-env.sh make-top-level-docker-compose.sh Makefile \
		make-generated.sh make-restic-generated.sh make-restic-password.sh restic-snapshots.sh copy-apps.sh restic-restore.sh restic-snapshot.sh \
		restic-scheduled-snapshot.sh \
		.terraform.lock.hcl
	cp nassella-latest.tar src/

## to help me remember the command to run to test the config locally
testlocalhost:
	curl -k --resolve localhost:443:146.190.12.129 https://localhost

flatcarbuild: ignition.json
	cp --reflink=auto flatcar/flatcar_production_qemu_image.img.fresh flatcar/flatcar_production_qemu_image.img

flatcarrun:
	./flatcar/flatcar_production_qemu.sh -i ignition.json