# set the shell to bash always
SHELL         := /bin/bash

# set make and shell flags to exit on errors
MAKEFLAGS     += --warn-undefined-variables
.SHELLFLAGS   := -euo pipefail -c

# default target is build
.DEFAULT_GOAL := all
.PHONY: all
all: build

# Image registry for build/push image targets
IMAGE_REGISTRY ?= ghcr.io/external-secrets/external-secrets

# Produce CRDs that work back to Kubernetes 1.11 (no version conversion)
CRD_OPTIONS ?= "crd:trivialVersions=true"
CRD_DIR     ?= deploy/crds

HELM_DIR    ?= deploy/charts/external-secrets

OUTPUT_DIR  ?= bin

# 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

# check if there are any existing `git tag` values
ifeq ($(shell git tag),)
# no tags found - default to initial tag `v0.0.0`
VERSION := $(shell echo "v0.0.0-$$(git rev-list HEAD --count)-g$$(git describe --dirty --always)" | sed 's/-/./2' | sed 's/-/./2')
else
# use tags
VERSION := $(shell git describe --dirty --always --tags | sed 's/-/./2' | sed 's/-/./2')
endif

# ====================================================================================
# Colors

BLUE         := $(shell printf "\033[34m")
YELLOW       := $(shell printf "\033[33m")
RED          := $(shell printf "\033[31m")
GREEN        := $(shell printf "\033[32m")
CNone        := $(shell printf "\033[0m")

# ====================================================================================
# Logger

TIME_LONG	= `date +%Y-%m-%d' '%H:%M:%S`
TIME_SHORT	= `date +%H:%M:%S`
TIME		= $(TIME_SHORT)

INFO	= echo ${TIME} ${BLUE}[ .. ]${CNone}
WARN	= echo ${TIME} ${YELLOW}[WARN]${CNone}
ERR		= echo ${TIME} ${RED}[FAIL]${CNone}
OK		= echo ${TIME} ${GREEN}[ OK ]${CNone}
FAIL	= (echo ${TIME} ${RED}[FAIL]${CNone} && false)

# ====================================================================================
# Conformance

# Ensure a PR is ready for review.
reviewable: generate helm.generate
	@go mod tidy

# Ensure branch is clean.
check-diff: reviewable
	@$(INFO) checking that branch is clean
	@test -z "$$(git status --porcelain)" || $(FAIL)
	@$(OK) branch is clean

# ====================================================================================
# Golang

.PHONY: test
test: generate ## Run tests
	@$(INFO) go test unit-tests
	go test -v $(shell go list ./... | grep -v e2e) -coverprofile cover.out
	@$(OK) go test unit-tests

.PHONY: test.e2e
test.e2e: generate ## Run e2e tests
	@$(INFO) go test e2e-tests
	$(MAKE) -C ./e2e test
	@$(OK) go test unit-tests

.PHONY: build
build: generate ## Build binary
	@$(INFO) go build
	@CGO_ENABLED=0 go build -o $(OUTPUT_DIR)/external-secrets main.go
	@$(OK) go build

# Check install of golanci-lint
lint.check:
	@if ! golangci-lint --version > /dev/null 2>&1; then \
		echo -e "\033[0;33mgolangci-lint is not installed: run \`\033[0;32mmake lint-install\033[0m\033[0;33m\` or install it from https://golangci-lint.run\033[0m"; \
		exit 1; \
	fi

# installs golangci-lint to the go bin dir
lint.install:
	@if ! golangci-lint --version > /dev/null 2>&1; then \
		echo "Installing golangci-lint"; \
		curl -sfL https://install.goreleaser.com/github.com/golangci/golangci-lint.sh | sh -s -- -b $(GOBIN) v1.33.0; \
	fi

lint: lint.check ## run golangci-lint
	@if ! golangci-lint run; then \
		echo -e "\033[0;33mgolangci-lint failed: some checks can be fixed with \`\033[0;32mmake fmt\033[0m\033[0;33m\`\033[0m"; \
		exit 1; \
	fi

fmt: lint.check ## ensure consistent code style
	@go mod tidy
	@go fmt ./...
	@golangci-lint run --fix > /dev/null 2>&1 || true
	@$(OK) Ensured consistent code style

generate: ## Generate code and crds
	@go run sigs.k8s.io/controller-tools/cmd/controller-gen object:headerFile="hack/boilerplate.go.txt" paths="./..."
	@go run sigs.k8s.io/controller-tools/cmd/controller-gen $(CRD_OPTIONS) paths="./..." output:crd:artifacts:config=$(CRD_DIR)
# Remove extra header lines in generated CRDs
	@for i in $(CRD_DIR)/*.yaml; do \
  		tail -n +3 <"$$i" >"$$i.bkp" && \
  		cp "$$i.bkp" "$$i" && \
  		rm "$$i.bkp"; \
  	done
	@$(OK) Finished generating deepcopy and crds

# ====================================================================================
# Local Utility

# This is for running out-of-cluster locally, and is for convenience.
# For more control, try running the binary directly with different arguments.
run: generate
	go run ./main.go

# Generate manifests from helm chart
manifests: helm.generate
	mkdir -p $(OUTPUT_DIR)/deploy/manifests
	helm template external-secrets $(HELM_DIR) -f deploy/manifests/helm-values.yaml > $(OUTPUT_DIR)/deploy/manifests/external-secrets.yaml

# Install CRDs into a cluster. This is for convenience.
crds.install: generate
	kubectl apply -f $(CRD_DIR)

# Uninstall CRDs from a cluster. This is for convenience.
crds.uninstall:
	kubectl delete -f $(CRD_DIR)

# ====================================================================================
# Helm Chart

helm.docs: ## Generate helm docs
	cd $(HELM_DIR); \
	docker run --rm -v $(shell pwd)/$(HELM_DIR):/helm-docs -u $(shell id -u) jnorwood/helm-docs:latest

HELM_VERSION ?= $(shell helm show chart $(HELM_DIR) | grep 'version:' | sed 's/version: //g')

helm.build: helm.generate ## Build helm chart
	@$(INFO) helm package
	@helm package $(HELM_DIR) --dependency-update --destination $(OUTPUT_DIR)/chart
	@mv $(OUTPUT_DIR)/chart/external-secrets-$(HELM_VERSION).tgz $(OUTPUT_DIR)/chart/external-secrets.tgz
	@$(OK) helm package

# Copy crds to helm chart directory
helm.generate:
	@cp $(CRD_DIR)/*.yaml $(HELM_DIR)/templates/crds/
# Add helm if statement for controlling the install of CRDs
	@for i in $(HELM_DIR)/templates/crds/*.yaml; do \
		cp "$$i" "$$i.bkp" && \
		echo "{{- if .Values.installCRDs }}" > "$$i" && \
		cat "$$i.bkp" >> "$$i" && \
		echo "{{- end }}" >> "$$i" && \
		rm "$$i.bkp"; \
	done
	@$(OK) Finished generating helm chart files

# ====================================================================================
# Documentation
.PHONY: docs
docs: generate
	$(MAKE) -C ./hack/api-docs build

.PHONY: serve-docs
serve-docs:
	$(MAKE) -C ./hack/api-docs serve

# ====================================================================================
# Build Artifacts

build.all: docker.build helm.build

docker.build: build ## Build the docker image
	@$(INFO) docker build
	@docker build . $(BUILD_ARGS) -t $(IMAGE_REGISTRY):$(VERSION)
	@$(OK) docker build

docker.push:
	@$(INFO) docker push
	@docker push $(IMAGE_REGISTRY):$(VERSION)
	@$(OK) docker push

# RELEASE_TAG is tag to promote. Default is promooting to main branch, but can be overriden
# to promote a tag to a specific version.
RELEASE_TAG ?= main
SOURCE_TAG ?= $(VERSION)

docker.promote:
	@$(INFO) docker pull $(SOURCE_TAG)
	@docker pull $(IMAGE_REGISTRY):$(SOURCE_TAG)
	@docker tag $(IMAGE_REGISTRY):$(SOURCE_TAG) $(IMAGE_REGISTRY):$(RELEASE_TAG)
	@docker push $(IMAGE_REGISTRY):$(RELEASE_TAG)
	@$(OK) docker push $(RELEASE_TAG)

# ====================================================================================
# Help

# only comments after make target name are shown as help text
help: ## displays this help message
	@echo -e "$$(grep -hE '^\S+:.*##' $(MAKEFILE_LIST) | sed -e 's/:.*##\s*/:/' -e 's/^\(.\+\):\(.*\)/\\x1b[36m\1\\x1b[m:\2/' | column -c2 -t -s : | sort)"
