# If using QubesOS, the smart card must be connected directly to the qube,
# rather than using a 'vault' qube.

BACKEND_TF := $(wildcard infra/backend/*.tf)
MAIN_TF := $(wildcard infra/main/*.tf)
ENVIRONMENT := production
REGION := sfo3
ROOT_DIR := $(shell pwd)
OUT_DIGEST := out/tools-image.digest
KEYS := \
	6B61ECD76088748C70590D55E90A401336C8AAA9 \
	88823A75ECAA786B0FF38B148E401478A3FBEF72 \
	3D7C8D39E8C4DF771583D3F0A8A091FD346001CA \
	F4BF5C81EC78A5DD341C91EEDC4B7D1F52E0BA4D

EXTRA_ARGS :=
GPG_TTY ?= $(shell tty)
PLATFORM ?= linux/amd64
PROGRESS ?= auto
REGISTRY ?= git.distrust.co/public
VERSION := latest

ifeq ($(NOCACHE), 1)
NOCACHE_FLAG=--no-cache
else
NOCACHE_FLAG=
endif
export NOCACHE_FLAG

include $(PWD)/src/make/macros.mk

.DEFAULT_GOAL :=
.PHONY: default
default: \
	tools \
	apply

.PHONY: clean
clean:
	rm -rf $(CACHE_DIR)

out:
	mkdir out

.PHONY: update-tools
update-tools:
	./src/make/update.sh

.PHONY: shell
shell: out/tools-image.digest
	$(call run-container, -v $${PWD}:/home/user/stack:rw, $(shell cat $<), /bin/bash)

.PHONY: credentials
credentials: \
	$(CACHE_DIR)/secrets/credentials.tfvars

$(KEY_DIR)/%.asc:
	$(call fetch_pgp_key,$(basename $(notdir $@)))

$(OUT_DIR)/website/.well-known/matrix/client \
$(OUT_DIR)/website/.well-known/matrix/server:
	mkdir -p $(OUT_DIR)/website/.well-known/matrix
	cp -R \
		$(SRC_DIR)/well-known/matrix/* \
		$(OUT_DIR)/website/.well-known/matrix/

$(OUT_DIR)/website/.well-known/openpgpkey:
	$(call toolchain," \
		sq wkd \
			generate $(OUT_DIR)/website distrust.co \
			<(cat $(patsubst %,$(KEY_DIR)/%.asc,$(KEYS))) \
	")

$(CACHE_DIR)/website/index.html: \
	$(CACHE_DIR)/website/.well-known/openpgpkey \
	$(CACHE_DIR)/website/.well-known/matrix/server \
	$(CACHE_DIR)/website/.well-known/matrix/client
	$(call toolchain," \
		cd $(SRC_DIR)/website \
		&& jekyll build \
		&& cp -R _site/* /home/build/out/website/ \
	")

infra/backend/.terraform: out/tools-image.digest $(BACKEND_TF)
	$(call run-container, \
		-v $(PWD)/secrets:/secrets \
		-v $(PWD)/infra:/infra, \
		$(shell cat out/tools-image.digest), \
		sops exec-env /secrets/$(ENVIRONMENT).enc.env -- '\
			tofu -chdir=/infra/backend init -upgrade && \
			tofu -chdir=/infra/backend refresh \
				-var environment=$(ENVIRONMENT) \
				-var namespace=$(ENVIRONMENT) \
				-var region=$(REGION) \
				-state $(ENVIRONMENT).tfstate' \
	)

infra/main/.terraform: out/tools-image.digest \
                       config/$(ENVIRONMENT).tfbackend \
                       $(MAIN_TF)
	$(call run-container, \
		-v $(PWD)/secrets:/secrets \
		-v $(PWD)/infra:/infra, \
		$(shell cat out/tools-image.digest), \
		sops exec-env /secrets/$(ENVIRONMENT).enc.env -- '\
			tofu -chdir=/infra/main init -upgrade \
				-backend-config="../../config/$(ENVIRONMENT).tfbackend" && \
			tofu -chdir=/infra/main refresh \
				-var environment=$(ENVIRONMENT) \
				-var namespace=$(ENVIRONMENT) \
				-var region=$(REGION) \
				-state $(ENVIRONMENT).tfstate' \
	)

infra/backend/$(ENVIRONMENT).tfstate: out/tools-image.digest infra/backend/.terraform
	$(call run-container, \
		-v $(PWD)/secrets:/secrets \
		-v $(PWD)/infra:/infra, \
		$(shell cat out/tools-image.digest), \
		sops exec-env /secrets/$(ENVIRONMENT).enc.env -- '\
			tofu -chdir=/infra/backend apply \
				-var environment=$(ENVIRONMENT) \
				-var namespace=$(ENVIRONMENT) \
				-var region=$(REGION) \
				-state $(ENVIRONMENT).tfstate' \
	)

config/$(ENVIRONMENT).tfbackend: $(OUT_DIGEST) infra/backend/$(ENVIRONMENT).tfstate
	$(call run-container, \
		-v $(PWD)/secrets:/secrets \
		-v $(PWD)/infra:/infra, \
		$(shell cat $(OUT_DIGEST)), \
		sops exec-env /secrets/$(ENVIRONMENT).enc.env -- '\
			tofu -chdir=/infra/backend output \
				-state $(ENVIRONMENT).tfstate > $@ && \
			tofu -chdir=/infra/backend refresh \
				-var environment=$(ENVIRONMENT) \
				-var namespace=$(ENVIRONMENT) \
				-var region=$(REGION) \
				-state $(ENVIRONMENT).tfstate' \
	)

build-%: REVISION = $(shell git rev-list -1 HEAD -- images/$*)
build-%: SOURCE_DATE_EPOCH = $(shell git log -1 --format=%ct $(REVISION))
build-%: images/tools/Containerfile | out
	export SOURCE_DATE_EPOCH
	cd images/tools
	$(call build-container,$*,$(VERSION),$<,$(SOURCE_DATE_EPOCH),$(REVISION))

out/tools-image.digest: out build-tools

.PHONY: plan
plan: out/tools-image.digest
	$(call run-container, \
		-v $(PWD)/secrets:/secrets -v $(PWD)/infra:/infra, \
		$(shell cat $<), \
		sops exec-env /secrets/$(ENVIRONMENT).enc.env -- \
		'tofu -chdir=/infra/main plan \
			-var environment=$(ENVIRONMENT) \
			-var namespace=$(ENVIRONMENT) \
			-var region=$(REGION)' \
	)

.PHONY: new-apply
new-apply: out/tools-image.digest 
	$(call run-container,'\
		echo $$GPG_AGENT_INFO; \
		ls -l /S.gpg-agent; \
		gpg --verbose --list-keys \
	')

.PHONY:
apply: \
	$(TERRAFORM) \
	$(SOPS) \
	infra/main/.terraform
	$(call maybe_decrypt_secret,secrets/$(ENVIRONMENT).talosconfig,infra/main/talos/talosconfig)
	$(call maybe_decrypt_secret,secrets/$(ENVIRONMENT).kubeconfig,infra/main/talos/kubeconfig)
	$(call maybe_decrypt_secret,secrets/$(ENVIRONMENT).controlplane.yaml,infra/main/talos/controlplane.yaml)
	$(call maybe_decrypt_secret,secrets/$(ENVIRONMENT).worker.yaml,infra/main/talos/worker.yaml)
	$(SOPS) exec-env secrets/$(ENVIRONMENT).enc.env '\
		env -C infra/main \
		$(TERRAFORM) apply \
		-var environment=$(ENVIRONMENT) \
		-var namespace=$(ENVIRONMENT) \
		-var region=$(REGION) \
		$(EXTRA_ARGS) '
	$(call maybe_encrypt_secret,infra/main/talos/talosconfig,secrets/$(ENVIRONMENT).talosconfig)
	$(call maybe_encrypt_secret,infra/main/talos/kubeconfig,secrets/$(ENVIRONMENT).kubeconfig)
	$(call maybe_encrypt_secret,infra/main/talos/controlplane.yaml,secrets/$(ENVIRONMENT).controlplane.yaml)
	$(call maybe_encrypt_secret,infra/main/talos/worker.yaml,secrets/$(ENVIRONMENT).worker.yaml)

$(CACHE_DIR)/secrets:
	mkdir -p $@