KUSTOMIZE = docker run -v $(HOME)/.aws:/root/.aws:ro -v $(PWD):/host -w /host badjware/kustomize-plugins:latest
KUSTOMIZEFLAGS = --enable_alpha_plugins

KUBECTL = kubectl
KUBECTLFLAGS = 
KUBECTLDIFFFLAGS =
KUBECTLAPPLYFLAGS = --prune

SRC := $(shell find kustomize/ -type f)
OUTDIR = build

DEVOUT = $(OUTDIR)/dev
DEVMANIFESTSRC = kustomize/overlays/dev
DEVMANIFESTOUT = $(DEVOUT)/manifest.yaml
DEVCLUSTERSRC = kustomize/overlays/dev-cluster
DEVCLUSTEROUT = $(DEVOUT)/cluster.yaml

PRODOUT = $(OUTDIR)/prod
PRODMANIFESTOUT = $(PRODOUT)/manifest.yaml
PRODMANIFESTSRC = kustomize/overlays/prod
PRODCLUSTEROUT = $(PRODOUT)/cluster.yaml
PRODCLUSTERSRC = kustomize/overlays/prod-cluster

ifeq ($(environment),prod)
	environment = prod

	ENVOUTDIR  = $(PRODOUT)
	ENVOUTFILE = $(PRODMANIFESTOUT) $(PRODCLUSTEROUT)
else
	environment = dev

	ENVOUTDIR  = $(DEVOUT)
	ENVOUTFILE = $(DEVMANIFESTOUT) $(DEVCLUSTERTOUT)
endif

.PHONY: diff
diff: $(environment)
	$(KUBECTL) $(KUBECTLFLAGS) diff $(KUBECTLDIFFFLAGS) -f $(ENVOUTDIR) | highlight --out-format xterm256 --syntax diff

.PHONY: apply
apply: $(environment)
	$(KUBECTL) $(KUBECTLFLAGS) apply $(KUBECTLAPPLYFLAGS) -l managed-by=kustomize-cluster -f $(ENVOUTDIR)
	$(KUBECTL) $(KUBECTLFLAGS) apply $(KUBECTLAPPLYFLAGS) -l managed-by=kustomize -f $(ENVOUTDIR)

.PHONY: all dev prod
all: dev prod
dev: $(DEVMANIFESTOUT) $(DEVCLUSTEROUT)
prod: $(PRODMANIFESTOUT) $(PRODCLUSTEROUT)

$(DEVMANIFESTOUT): $(SRC)
	mkdir -p $(DEVOUT)
	$(KUSTOMIZE) build $(KUSTOMIZEFLAGS) $(DEVMANIFESTSRC) >$(DEVMANIFESTOUT) || (rm $(DEVMANIFESTOUT); exit 1)

$(DEVCLUSTEROUT): $(SRC)
	mkdir -p $(DEVOUT)
	$(KUSTOMIZE) build $(KUSTOMIZEFLAGS) $(DEVCLUSTERSRC) >$(DEVCLUSTEROUT) || (rm $(DEVCLUSTEROUT); exit 1)

$(PRODMANIFESTOUT): $(SRC)
	mkdir -p $(PRODOUT)
	$(KUSTOMIZE) build $(KUSTOMIZEFLAGS) $(PRODMANIFESTSRC) >$(PRODMANIFESTOUT) || (rm $(PRODMANIFESTOUT); exit 1)

$(PRODCLUSTEROUT): $(SRC)
	mkdir -p $(PRODOUT)
	$(KUSTOMIZE) build $(KUSTOMIZEFLAGS) $(PRODCLUSTERSRC) >$(PRODCLUSTEROUT) || (rm $(PRODCLUSTEROUT); exit 1)

.PHONY: clean
clean:
	rm -r $(OUTDIR)

# $(KUSTOMIZEOUTALL): $(SRC)
# 	@mkdir -p $(dir $(KUSTOMIZEOUTALL))
# 	$(KUSTOMIZE) build $(KUSTOMIZEFLAGS) $(KUSTOMIZEDIRALL) >$(KUSTOMIZEOUTALL) || (rm $(KUSTOMIZEOUTALL); exit 1)

# $(KUSTOMIZEOUT): $(SRC)
# 	@mkdir -p $(dir $(KUSTOMIZEOUT))
# 	$(KUSTOMIZE) build $(KUSTOMIZEFLAGS) $(KUSTOMIZEDIR) >$(KUSTOMIZEOUT) || (rm $(KUSTOMIZEOUT); exit 1)