.PHONY: init plan apply format

VAULT_AUTH_METHOD ?= approle
VAULT_K8S_ROLE ?= woodpecker_terraform_rancher
VAULT_K8S_MOUNT ?= auth/k8s/au/syd1
VAULT_K8S_JWT_PATH ?= /var/run/secrets/kubernetes.io/serviceaccount/token
# kv-v2 location of the Rancher admin API token used by the rancher2 provider.
# TODO: migrate to the dedicated Vault Rancher secrets engine once it exists
# (swap the `vault kv get` below for `vault read -field=token rancher/creds/<role>`).
# Until then note Rancher API tokens have a 90-day max lifetime and must be rotated.
RANCHER_TOKEN_KV_MOUNT ?= kv
RANCHER_TOKEN_KV_PATH ?= service/terraform/rancher
RANCHER_TOKEN_KV_FIELD ?= token

define vault_env
	@export VAULT_ADDR="https://vault.service.consul:8200" && \
	if [ "$(VAULT_AUTH_METHOD)" = "kubernetes" ]; then \
		export VAULT_TOKEN=$$(vault write -field=token $(VAULT_K8S_MOUNT)/login role=$(VAULT_K8S_ROLE) jwt=$$(cat $(VAULT_K8S_JWT_PATH))); \
	else \
		export VAULT_TOKEN=$$(vault write -field=token auth/approle/login role_id=$$VAULT_ROLEID); \
	fi && \
	export CONSUL_HTTP_TOKEN=$$(vault read -field=token consul_root/au/syd1/creds/terraform-rancher) && \
	export TF_VAR_rancher_token=$$(vault kv get -mount=$(RANCHER_TOKEN_KV_MOUNT) -field=$(RANCHER_TOKEN_KV_FIELD) $(RANCHER_TOKEN_KV_PATH))
endef

init:
	@$(call vault_env) && \
	terragrunt run --all --non-interactive init -- -upgrade

plan: init
	@$(call vault_env) && \
	terragrunt run --all --parallelism 4 --non-interactive plan -- -lock=false

apply: init
	@$(call vault_env) && \
	terragrunt run --all --parallelism 2 --non-interactive apply

format:
	@echo "Formatting OpenTofu files..."
	@tofu fmt -recursive .
	@echo "Formatting Terragrunt files..."
	@terragrunt hcl fmt
