# Version
GIT_HEAD_COMMIT ?= $(shell git rev-parse --short HEAD)
VERSION          ?= $(shell git describe --abbrev=0 --tags --match "v*")
ifndef VERSION
VERSION          = $(GIT_HEAD_COMMIT)
endif

# Defaults
REGISTRY        ?= ghcr.io
REPOSITORY      ?= projectcapsule/capsule
GIT_TAG_COMMIT  ?= $(shell git rev-parse --short $(VERSION))
GIT_MODIFIED_1  ?= $(shell git diff $(GIT_HEAD_COMMIT) $(GIT_TAG_COMMIT) --quiet && echo "" || echo ".dev")
GIT_MODIFIED_2  ?= $(shell git diff --quiet && echo "" || echo ".dirty")
GIT_MODIFIED    ?= $(shell echo "$(GIT_MODIFIED_1)$(GIT_MODIFIED_2)")
GIT_REPO        ?= $(shell git config --get remote.origin.url)
BUILD_DATE      ?= $(shell git log -1 --format="%at" | xargs -I{} sh -c 'if [ "$(shell uname)" = "Darwin" ]; then date -r {} +%Y-%m-%dT%H:%M:%S; else date -d @{} +%Y-%m-%dT%H:%M:%S; fi')
IMG_BASE        ?= $(REPOSITORY)
IMG             ?= $(IMG_BASE):$(VERSION)
CAPSULE_IMG     ?= $(REGISTRY)/$(IMG_BASE)

# Options for 'bundle-build'
ifneq ($(origin CHANNELS), undefined)
BUNDLE_CHANNELS := --channels=$(CHANNELS)
endif
ifneq ($(origin DEFAULT_CHANNEL), undefined)
BUNDLE_DEFAULT_CHANNEL := --default-channel=$(DEFAULT_CHANNEL)
endif
BUNDLE_METADATA_OPTS ?= $(BUNDLE_CHANNELS) $(BUNDLE_DEFAULT_CHANNEL)

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

all: manager

# Run tests
.PHONY: test
test: test-clean generate manifests test-clean
	@GO111MODULE=on go test -v ./... -coverprofile coverage.out

.PHONY: test-clean
test-clean: ## Clean tests cache
	@go clean -testcache

# Build manager binary
manager: generate golint
	go build -o bin/manager

# Run against the configured Kubernetes cluster in ~/.kube/config
run: generate manifests
	go run .

# Creates the single file to install Capsule without any external dependency
installer: manifests kustomize
	cd config/manager && $(KUSTOMIZE) edit set image controller=${CAPSULE_IMG}
	$(KUSTOMIZE) build config/default > config/install.yaml

# Install CRDs into a cluster
install: installer
	$(KUSTOMIZE) build config/crd | kubectl apply -f -

# Uninstall CRDs from a cluster
uninstall: installer
	$(KUSTOMIZE) build config/crd | kubectl delete -f -

# Deploy controller in the configured Kubernetes cluster in ~/.kube/config
deploy: installer
	kubectl apply -f config/install.yaml

# Remove controller in the configured Kubernetes cluster in ~/.kube/config
remove: installer
	kubectl delete -f config/install.yaml
	kubectl delete clusterroles.rbac.authorization.k8s.io capsule-namespace-deleter capsule-namespace-provisioner --ignore-not-found
	kubectl delete clusterrolebindings.rbac.authorization.k8s.io capsule-namespace-deleter capsule-namespace-provisioner --ignore-not-found

# Generate manifests e.g. CRD, RBAC etc.
manifests: controller-gen
	$(CONTROLLER_GEN) rbac:roleName=manager-role crd webhook paths="./..." output:crd:artifacts:config=config/crd/bases

# Generate code
generate: controller-gen
	$(CONTROLLER_GEN) object:headerFile="hack/boilerplate.go.txt" paths="./..."

apidoc: apidocs-gen
	$(APIDOCS_GEN) crdoc --resources config/crd/bases --output docs/content/general/crds-apis.md --template docs/template/reference-cr.tmpl

# Helm
SRC_ROOT = $(shell git rev-parse --show-toplevel)

helm-docs: HELMDOCS_VERSION := v1.11.0
helm-docs: docker
	@docker run -v "$(SRC_ROOT):/helm-docs" jnorwood/helm-docs:$(HELMDOCS_VERSION) --chart-search-root /helm-docs

helm-lint: CT_VERSION := v3.3.1
helm-lint: docker
	@docker run -v "$(SRC_ROOT):/workdir" --entrypoint /bin/sh quay.io/helmpack/chart-testing:$(CT_VERSION) -c "cd /workdir; ct lint --config .github/configs/ct.yaml  --lint-conf .github/configs/lintconf.yaml  --all --debug"

helm-test: kind ct ko-build-all
	@kind create cluster --wait=60s --name capsule-charts
	@kind load docker-image --name capsule-charts $(LOCAL_CAPSULE_IMG)
	@kubectl create ns capsule-system
	@ct install --config $(SRC_ROOT)/.github/configs/ct.yaml --namespace=capsule-system --all --debug
	@kind delete cluster --name capsule-charts

docker:
	@hash docker 2>/dev/null || {\
		echo "You need docker" &&\
		exit 1;\
	}

# Setup development env
# Usage: 
# 	LAPTOP_HOST_IP=<YOUR_LAPTOP_IP> make dev-setup
# For example:
#	LAPTOP_HOST_IP=192.168.10.101 make dev-setup
define TLS_CNF
[ req ]
default_bits       = 4096
distinguished_name = req_distinguished_name
req_extensions     = req_ext
[ req_distinguished_name ]
countryName                = SG
stateOrProvinceName        = SG
localityName               = SG
organizationName           = CAPSULE
commonName                 = CAPSULE
[ req_ext ]
subjectAltName = @alt_names
[alt_names]
IP.1   = $(LAPTOP_HOST_IP)
endef
export TLS_CNF
dev-setup:
	kubectl -n capsule-system scale deployment capsule-controller-manager --replicas=0
	mkdir -p /tmp/k8s-webhook-server/serving-certs
	echo "$${TLS_CNF}" > _tls.cnf
	openssl req -newkey rsa:4096 -days 3650 -nodes -x509 \
		-subj "/C=SG/ST=SG/L=SG/O=CAPSULE/CN=CAPSULE" \
		-extensions req_ext \
		-config _tls.cnf \
		-keyout /tmp/k8s-webhook-server/serving-certs/tls.key \
		-out /tmp/k8s-webhook-server/serving-certs/tls.crt
	rm -f _tls.cnf 
	export WEBHOOK_URL="https://$${LAPTOP_HOST_IP}:9443"; \
	export CA_BUNDLE=`openssl base64 -in /tmp/k8s-webhook-server/serving-certs/tls.crt | tr -d '\n'`; \
	kubectl patch MutatingWebhookConfiguration capsule-mutating-webhook-configuration \
		--type='json' -p="[\
		    {'op': 'replace', 'path': '/webhooks/0/clientConfig', 'value':{'url':\"$${WEBHOOK_URL}/defaults\",'caBundle':\"$${CA_BUNDLE}\"}},\
			{'op': 'replace', 'path': '/webhooks/1/clientConfig', 'value':{'url':\"$${WEBHOOK_URL}/defaults\",'caBundle':\"$${CA_BUNDLE}\"}},\
			{'op': 'replace', 'path': '/webhooks/2/clientConfig', 'value':{'url':\"$${WEBHOOK_URL}/defaults\",'caBundle':\"$${CA_BUNDLE}\"}},\
			{'op': 'replace', 'path': '/webhooks/3/clientConfig', 'value':{'url':\"$${WEBHOOK_URL}/namespace-owner-reference\",'caBundle':\"$${CA_BUNDLE}\"}}\
		]" && \
	kubectl patch ValidatingWebhookConfiguration capsule-validating-webhook-configuration \
		--type='json' -p="[\
			{'op': 'replace', 'path': '/webhooks/0/clientConfig', 'value':{'url':\"$${WEBHOOK_URL}/cordoning\",'caBundle':\"$${CA_BUNDLE}\"}},\
			{'op': 'replace', 'path': '/webhooks/1/clientConfig', 'value':{'url':\"$${WEBHOOK_URL}/ingresses\",'caBundle':\"$${CA_BUNDLE}\"}},\
			{'op': 'replace', 'path': '/webhooks/2/clientConfig', 'value':{'url':\"$${WEBHOOK_URL}/namespaces\",'caBundle':\"$${CA_BUNDLE}\"}},\
			{'op': 'replace', 'path': '/webhooks/3/clientConfig', 'value':{'url':\"$${WEBHOOK_URL}/networkpolicies\",'caBundle':\"$${CA_BUNDLE}\"}},\
			{'op': 'replace', 'path': '/webhooks/4/clientConfig', 'value':{'url':\"$${WEBHOOK_URL}/nodes\",'caBundle':\"$${CA_BUNDLE}\"}},\
			{'op': 'replace', 'path': '/webhooks/5/clientConfig', 'value':{'url':\"$${WEBHOOK_URL}/pods\",'caBundle':\"$${CA_BUNDLE}\"}},\
			{'op': 'replace', 'path': '/webhooks/6/clientConfig', 'value':{'url':\"$${WEBHOOK_URL}/persistentvolumeclaims\",'caBundle':\"$${CA_BUNDLE}\"}},\
			{'op': 'replace', 'path': '/webhooks/7/clientConfig', 'value':{'url':\"$${WEBHOOK_URL}/services\",'caBundle':\"$${CA_BUNDLE}\"}},\
			{'op': 'replace', 'path': '/webhooks/8/clientConfig', 'value':{'url':\"$${WEBHOOK_URL}/tenants\",'caBundle':\"$${CA_BUNDLE}\"}}\
		]" && \
	kubectl patch crd tenants.capsule.clastix.io \
		--type='json' -p="[\
			{'op': 'replace', 'path': '/spec/conversion/webhook/clientConfig', 'value':{'url': \"$${WEBHOOK_URL}\", 'caBundle': \"$${CA_BUNDLE}\"}}\
		]" && \
	kubectl patch crd capsuleconfigurations.capsule.clastix.io \
		--type='json' -p="[\
			{'op': 'replace', 'path': '/spec/conversion/webhook/clientConfig', 'value':{'url': \"$${WEBHOOK_URL}\", 'caBundle': \"$${CA_BUNDLE}\"}}\
		]";


####################
# -- Docker
####################

KOCACHE         ?= /tmp/ko-cache
KO_REGISTRY     := ko.local
KO_TAGS         ?= "latest"
ifdef VERSION
KO_TAGS         := $(KO_TAGS),$(VERSION)
endif

LD_FLAGS        := "-X main.Version=$(VERSION) \
					-X main.GitCommit=$(GIT_HEAD_COMMIT) \
					-X main.GitTag=$(VERSION) \
					-X main.GitTreeState=$(GIT_MODIFIED) \
					-X main.BuildDate=$(BUILD_DATE) \
					-X main.GitRepo=$(GIT_REPO)"

# Docker Image Build
# ------------------

.PHONY: ko-build-capsule
LOCAL_CAPSULE_IMG_BASE := github.com/$(REPOSITORY)
LOCAL_CAPSULE_IMG := $(KO_REGISTRY)/$(LOCAL_CAPSULE_IMG_BASE)
ko-build-capsule: ko
	@echo Building Capsule $(KO_TAGS) >&2
	@LD_FLAGS=$(LD_FLAGS) KOCACHE=$(KOCACHE) KO_DOCKER_REPO=$(KO_REGISTRY) \
		$(KO) build ./ --preserve-import-paths --tags=$(KO_TAGS)  --push=false

.PHONY: ko-build-all
ko-build-all: ko-build-capsule

# Docker Image Publish
# ------------------

REGISTRY_PASSWORD   ?= dummy
REGISTRY_USERNAME   ?= dummy

.PHONY: ko-login
ko-login: ko
	@$(KO) login $(REGISTRY) --username $(REGISTRY_USERNAME) --password $(REGISTRY_PASSWORD)

.PHONY: ko-publish-capsule
ko-publish-capsule: ko-login ## Build and publish kyvernopre image (with ko)
	@LD_FLAGS=$(LD_FLAGS) KOCACHE=$(KOCACHE) KO_DOCKER_REPO=$(CAPSULE_IMG) \
		$(KO) build ./ --bare --tags=$(KO_TAGS)

.PHONY: ko-publish-all
ko-publish-all: ko-publish-capsule

####################
# -- Binaries
####################

CONTROLLER_GEN         := $(shell pwd)/bin/controller-gen
CONTROLLER_GEN_VERSION := v0.10.0
controller-gen: ## Download controller-gen locally if necessary.
	$(call go-install-tool,$(CONTROLLER_GEN),sigs.k8s.io/controller-tools/cmd/controller-gen@$(CONTROLLER_GEN_VERSION))

APIDOCS_GEN         := $(shell pwd)/bin/crdoc
APIDOCS_GEN_VERSION := latest
apidocs-gen: ## Download crdoc locally if necessary.
	$(call go-install-tool,$(APIDOCS_GEN),fybrik.io/crdoc@$(APIDOCS_GEN_VERSION))

GINKGO         := $(shell pwd)/bin/ginkgo
GINGKO_VERSION := v2.9.5
ginkgo: ## Download ginkgo locally if necessary.
	$(call go-install-tool,$(GINKGO),github.com/onsi/ginkgo/v2/ginkgo@$(GINGKO_VERSION))

CT         := $(shell pwd)/bin/ct
CT_VERSION := v3.7.1
ct: ## Download ct locally if necessary.
	$(call go-install-tool,$(CT),github.com/helm/chart-testing/v3/ct@$(CT_VERSION))

KIND         := $(shell pwd)/bin/kind
KIND_VERSION := v0.17.0
kind: ## Download kind locally if necessary.
	$(call go-install-tool,$(KIND),sigs.k8s.io/kind/cmd/kind@$(KIND_VERSION))

KUSTOMIZE         := $(shell pwd)/bin/kustomize
KUSTOMIZE_VERSION := 3.8.7
kustomize: ## Download kustomize locally if necessary.
	$(call install-kustomize,$(KUSTOMIZE),$(KUSTOMIZE_VERSION))

KO = $(shell pwd)/bin/ko
KO_VERSION = v0.14.1
ko:
	$(call go-install-tool,$(KO),github.com/google/ko@v0.14.1)

####################
# -- Helpers
####################
pull-upstream:
	git remote add upstream https://github.com/capsuleproject/capsule.git
	git fetch --all && git pull upstream

define install-kustomize
@[ -f $(1) ] || { \
set -e ;\
echo "Installing v$(2)" ;\
cd bin ;\
wget "https://raw.githubusercontent.com/kubernetes-sigs/kustomize/master/hack/install_kustomize.sh" ;\
bash ./install_kustomize.sh $(2) ;\
}
endef

# go-install-tool will 'go install' any package $2 and install it to $1.
PROJECT_DIR := $(shell dirname $(abspath $(lastword $(MAKEFILE_LIST))))
define go-install-tool
@[ -f $(1) ] || { \
set -e ;\
GOBIN=$(PROJECT_DIR)/bin go install $(2) ;\
}
endef

# Generate bundle manifests and metadata, then validate generated files.
bundle: manifests
	operator-sdk generate kustomize manifests -q
	kustomize build config/manifests | operator-sdk generate bundle -q --overwrite --version $(VERSION) $(BUNDLE_METADATA_OPTS)
	operator-sdk bundle validate ./bundle

# Sorting imports
.PHONY: goimports
goimports:
	goimports -w -l -local "github.com/projectcapsule/capsule" .

GOLANGCI_LINT = $(shell pwd)/bin/golangci-lint
golangci-lint: ## Download golangci-lint locally if necessary.
	$(call go-install-tool,$(GOLANGCI_LINT),github.com/golangci/golangci-lint/cmd/golangci-lint@v1.51.2)

# Linting code as PR is expecting
.PHONY: golint
golint: golangci-lint
	$(GOLANGCI_LINT) run -c .golangci.yml

# Running e2e tests in a KinD instance
.PHONY: e2e
e2e/%: ginkgo
	$(MAKE) e2e-build/$* && $(MAKE) e2e-exec && $(MAKE) e2e-destroy

e2e-build/%:
	kind create cluster --wait=60s --name capsule --image=kindest/node:$*
	make e2e-load-image
	make e2e-install

.PHONY: e2e-install
e2e-install:
	helm upgrade \
		--debug \
		--install \
		--namespace capsule-system \
		--create-namespace \
		--set 'manager.image.pullPolicy=Never' \
		--set 'manager.resources=null'\
		--set "manager.image.tag=$(VERSION)" \
		--set 'manager.image.registry=$(KO_REGISTRY)' \
		--set 'manager.image.repository=$(LOCAL_CAPSULE_IMG_BASE)' \
		--set 'manager.livenessProbe.failureThreshold=10' \
		--set 'manager.readinessProbe.failureThreshold=10' \
		--set 'podSecurityContext.seccompProfile=null' \
		capsule \
		./charts/capsule

.PHONY: e2e-load-image
e2e-load-image: ko-build-all
	kind load docker-image --nodes capsule-control-plane --name capsule $(LOCAL_CAPSULE_IMG):$(VERSION)

.PHONY: e2e-exec
e2e-exec: ginkgo
	$(GINKGO) -v -tags e2e ./e2e

.PHONY: e2e-destroy
e2e-destroy:
	kind delete cluster --name capsule

SPELL_CHECKER = npx spellchecker-cli
docs-lint:
	cd docs/content && $(SPELL_CHECKER) -f "*.md" "*/*.md" -d dictionary.txt