
# Image URL to use all building/pushing image targets
IMG ?= ghcr.io/glasskube/package-operator:snapshot
# ENVTEST_K8S_VERSION refers to the version of kubebuilder assets to be downloaded by envtest binary.
ENVTEST_K8S_VERSION = 1.28.0

# Allows to override name and location of the "go" binary.
# This allows using different versions of Go, as outlined in the documentation: https://go.dev/doc/manage-install
GOCMD ?= go

# Location for temporary files. This environment variable is set by default on macOS but on on most Linux systems.
TMPDIR ?= /tmp

# Get the currently used golang install path (in GOPATH/bin, unless GOBIN is set)
ifeq (,$(shell $(GOCMD) env GOBIN))
GOBIN=$(shell $(GOCMD) env GOPATH)/bin
else
GOBIN=$(shell $(GOCMD) env GOBIN)
endif

# CONTAINER_TOOL defines the container tool to be used for building images.
# Be aware that the target commands are only tested with Docker which is
# scaffolded by default. However, you might want to replace it to use other
# tools. (i.e. podman)
CONTAINER_TOOL ?= docker

OUT_DIR ?= $(shell pwd)/dist

# Setting SHELL to bash allows bash commands to be executed by recipes.
# Options are set to exit when a recipe line exits non-zero or a piped command fails.
SHELL = /usr/bin/env bash -o pipefail
.SHELLFLAGS = -ec

.PHONY: all
all: tidy fmt lint schema-gen build build-cert build-cli test

##@ General

# The help target prints out all targets with their descriptions organized
# beneath their categories. The categories are represented by '##@' and the
# target descriptions by '##'. The awk command is responsible for reading the
# entire set of makefiles included in this invocation, looking for lines of the
# file as xyz: ## something, and then pretty-format the target and help. Then,
# if there's a line with ##@ something, that gets pretty-printed as a category.
# More info on the usage of ANSI control characters for terminal formatting:
# https://en.wikipedia.org/wiki/ANSI_escape_code#SGR_parameters
# More info on the awk command:
# http://linuxcommand.org/lc3_adv_awk.php

.PHONY: help
help: ## Display this help.
	@awk 'BEGIN {FS = ":.*##"; printf "\nUsage:\n  make \033[36m<target>\033[0m\n"} /^[a-zA-Z_0-9-]+:.*?##/ { printf "  \033[36m%-15s\033[0m %s\n", $$1, $$2 } /^##@/ { printf "\n\033[1m%s\033[0m\n", substr($$0, 5) } ' $(MAKEFILE_LIST)

##@ Development

.PHONY: schema-gen
schema-gen: # Generate a schema.json file for the package manifest type.
	$(GOCMD) run ./internal/cmd/schema-gen

.PHONY: manifests
manifests: controller-gen ## Generate WebhookConfiguration, ClusterRole and CustomResourceDefinition objects.
	$(CONTROLLER_GEN) rbac:roleName=manager-role crd webhook paths="./..." output:crd:artifacts:config=config/crd/bases

.PHONY: generate
generate: controller-gen ## Generate code containing DeepCopy, DeepCopyInto, and DeepCopyObject method implementations.
	$(CONTROLLER_GEN) object:headerFile="hack/boilerplate.go.txt" paths="./..."

.PHONY: tidy
tidy: ## Run go mod tidy
	$(GOCMD) mod tidy

.PHONY: fmt
fmt: ## Run go fmt against code.
	$(GOCMD) fmt ./...

.PHONY: vet
vet: ## Run go vet against code.
	$(GOCMD) vet ./...

.PHONY: lint
lint: lint-go lint-web

.PHONY: lint-fix
lint-fix: lint-go-fix lint-web-fix

.PHONY: test
test: manifests generate fmt lint-go envtest ## Run tests.
	KUBEBUILDER_ASSETS="$(shell $(ENVTEST) use $(ENVTEST_K8S_VERSION) --bin-dir $(LOCALBIN) -p path)" $(GOCMD) test ./... -coverprofile cover.out

GOLANGCI_LINT = $(shell pwd)/bin/golangci-lint
GOLANGCI_LINT_VERSION ?= v1.60.1
golangci-lint:
	@[ -f $(GOLANGCI_LINT) ] || { \
	set -e ;\
	curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s -- -b $(shell dirname $(GOLANGCI_LINT)) $(GOLANGCI_LINT_VERSION) ;\
	}

.PHONY: lint-go
lint-go: golangci-lint ## Run golangci-lint linter & yamllint
	$(GOLANGCI_LINT) run

.PHONY: lint-fix
lint-go-fix: golangci-lint ## Run golangci-lint linter and perform fixes
	$(GOLANGCI_LINT) run --fix

##@ Build

.PHONY: build
build: manifests generate fmt lint-go ## Build manager binary.
	$(GOCMD) build -o $(OUT_DIR)/package-operator ./cmd/package-operator/

.PHONY: build-cert
build-cert: manifests generate fmt lint-go ## Build manager binary.
	$(GOCMD) build -o $(OUT_DIR)/cert-manager ./cmd/cert-manager/

.PHONY: build-cli
build-cli: fmt lint-go lint-web web ## Build cli binary.
	$(GOCMD) build -o $(OUT_DIR)/glasskube ./cmd/glasskube/

.PHONY: run
run: manifests generate fmt ## Run a controller from your host.
	$(GOCMD) run ./cmd/package-operator/

.PHONY: cert
cert: manifests generate fmt
	$(GOCMD) run ./cmd/cert-manager/ --cert-dir $(TMPDIR)/k8s-webhook-server/serving-certs

# If you wish to build the manager image targeting other platforms you can use the --platform flag.
# (i.e. docker build --platform linux/arm64). However, you must enable docker buildKit for it.
# More info: https://docs.docker.com/develop/develop-images/build_enhancements/
.PHONY: docker-build
docker-build: ## Build docker image with the manager.
	$(CONTAINER_TOOL) build -t ${IMG} .

.PHONY: docker-push
docker-push: ## Push docker image with the manager.
	$(CONTAINER_TOOL) push ${IMG}

# PLATFORMS defines the target platforms for the manager image be built to provide support to multiple
# architectures. (i.e. make docker-buildx IMG=myregistry/mypoperator:0.0.1). To use this option you need to:
# - be able to use docker buildx. More info: https://docs.docker.com/build/buildx/
# - have enabled BuildKit. More info: https://docs.docker.com/develop/develop-images/build_enhancements/
# - be able to push the image to your registry (i.e. if you do not set a valid value via IMG=<myregistry/image:<tag>> then the export will fail)
# To adequately provide solutions that are compatible with multiple platforms, you should consider using this option.
PLATFORMS ?= linux/arm64,linux/amd64,linux/s390x,linux/ppc64le
.PHONY: docker-buildx
docker-buildx: ## Build and push docker image for the manager for cross-platform support
	# copy existing Dockerfile and insert --platform=${BUILDPLATFORM} into Dockerfile.cross, and preserve the original Dockerfile
	sed -e '1 s/\(^FROM\)/FROM --platform=\$$\{BUILDPLATFORM\}/; t' -e ' 1,// s//FROM --platform=\$$\{BUILDPLATFORM\}/' Dockerfile > Dockerfile.cross
	- $(CONTAINER_TOOL) buildx create --name project-v3-builder
	$(CONTAINER_TOOL) buildx use project-v3-builder
	- $(CONTAINER_TOOL) buildx build --push --platform=$(PLATFORMS) --tag ${IMG} -f Dockerfile.cross .
	- $(CONTAINER_TOOL) buildx rm project-v3-builder
	rm Dockerfile.cross

##@ Deployment

ifndef ignore-not-found
  ignore-not-found = false
endif

.PHONY: setup
setup: manifests kustomize install dependencies webhook cert  ## Install CRDs, webhook, local cert, default repo in the current cluster
	$(KUSTOMIZE) build config/repository/default | $(KUBECTL) apply -f -

.PHONY: dependencies
dependencies: manifests kustomize
	$(KUSTOMIZE) build config/dependencies | $(KUBECTL) apply -f -

.PHONY: install
install: manifests kustomize ## Install CRDs into the K8s cluster specified in ~/.kube/config.
	$(KUSTOMIZE) build config/crd | $(KUBECTL) apply -f -

.PHONY: uninstall
uninstall: manifests kustomize ## Uninstall CRDs from the K8s cluster specified in ~/.kube/config. Call with ignore-not-found=true to ignore resource not found errors during deletion.
	$(KUSTOMIZE) build config/crd | $(KUBECTL) delete --ignore-not-found=$(ignore-not-found) -f -

.PHONY: webhook
webhook: manifests kustomize
	$(KUSTOMIZE) build config/webhook-local | $(KUBECTL) apply -f -

.PHONY: uninstall-webhook
uninstall-webhook: manifests kustomize
	$(KUSTOMIZE) build config/webhook-local | $(KUBECTL) delete --ignore-not-found=$(ignore-not-found) -f -

.PHONY: deploy
deploy: manifests kustomize ## Deploy controller to the K8s cluster specified in ~/.kube/config.
	cd config/default && $(KUSTOMIZE) edit set image controller=${IMG}
	$(KUSTOMIZE) build config/default | $(KUBECTL) apply -f -

.PHONY: undeploy
undeploy: ## Undeploy controller from the K8s cluster specified in ~/.kube/config. Call with ignore-not-found=true to ignore resource not found errors during deletion.
	$(KUSTOMIZE) build config/default | $(KUBECTL) delete --ignore-not-found=$(ignore-not-found) -f -

##@ Frontend

FRONTEND_SOURCES := $(shell find web/ -type f)
FRONTEND_TARGETS := internal/web/root/static/bundle/index.min.js internal/web/root/static/bundle/index.min.css

.PHONY: web
web: $(FRONTEND_TARGETS) ## Build frontend bundles

.PHONY: lint-web
lint-web: node_modules ## Check frontend formatting
	npm run prettier:check

.PHONY: lint-web-fix
lint-web-fix: node_modules ## Apply frontend formatting
	npm run prettier:write

$(FRONTEND_TARGETS): $(FRONTEND_SOURCES) node_modules esbuild.mjs
	npm run build

## Install frontend dependencies
node_modules: package-lock.json
	npm install --no-save
	@touch node_modules

##@ Build Dependencies

## Location to install dependencies to
LOCALBIN ?= $(shell pwd)/bin
$(LOCALBIN):
	mkdir -p $(LOCALBIN)

## Tool Binaries
KUBECTL ?= kubectl
KUSTOMIZE ?= $(LOCALBIN)/kustomize
CONTROLLER_GEN ?= $(LOCALBIN)/controller-gen
ENVTEST ?= $(LOCALBIN)/setup-envtest

## Tool Versions
KUSTOMIZE_VERSION ?= v5.2.1
CONTROLLER_TOOLS_VERSION ?= v0.16.1

.PHONY: kustomize
kustomize: $(KUSTOMIZE) ## Download kustomize locally if necessary. If wrong version is installed, it will be removed before downloading.
$(KUSTOMIZE): $(LOCALBIN)
	@if test -x $(LOCALBIN)/kustomize && ! $(LOCALBIN)/kustomize version | grep -q $(KUSTOMIZE_VERSION); then \
		echo "$(LOCALBIN)/kustomize version is not expected $(KUSTOMIZE_VERSION). Removing it before installing."; \
		rm -rf $(LOCALBIN)/kustomize; \
	fi
	test -s $(LOCALBIN)/kustomize || GOBIN=$(LOCALBIN) GO111MODULE=on $(GOCMD) install sigs.k8s.io/kustomize/kustomize/v5@$(KUSTOMIZE_VERSION)

.PHONY: controller-gen
controller-gen: $(CONTROLLER_GEN) ## Download controller-gen locally if necessary. If wrong version is installed, it will be overwritten.
$(CONTROLLER_GEN): $(LOCALBIN)
	test -s $(LOCALBIN)/controller-gen && $(LOCALBIN)/controller-gen --version | grep -q $(CONTROLLER_TOOLS_VERSION) || \
	GOBIN=$(LOCALBIN) $(GOCMD) install sigs.k8s.io/controller-tools/cmd/controller-gen@$(CONTROLLER_TOOLS_VERSION)

.PHONY: envtest
envtest: $(ENVTEST) ## Download envtest-setup locally if necessary.
$(ENVTEST): $(LOCALBIN)
	test -s $(LOCALBIN)/setup-envtest || GOBIN=$(LOCALBIN) $(GOCMD) install sigs.k8s.io/controller-runtime/tools/setup-envtest@latest
