HELMFILE := helmfile

ifeq ($(shell which $(HELMFILE)),)
$(info $(HELMFILE) not found. Do you want to install it? [y/N])
INSTALL_HELMFILE := $(shell read -p "" yn; echo $$yn)
ifeq ($(INSTALL_HELMFILE),y)
UNAME_S := $(shell uname -s)
ifeq ($(UNAME_S),Linux)
	@echo "Installing helmfile for Linux..."
	@curl -fsSL -o get_helmfile.sh https://raw.githubusercontent.com/helmfile/helmfile/main/scripts/get-helmfile.sh
	@chmod 700 get_helmfile.sh
	@./get_helmfile.sh
	@rm get_helmfile.sh
else ifeq ($(UNAME_S),Darwin)
	@echo "Installing helmfile for macOS..."
	@if ! command -v brew >/dev/null 2>&1; then \
		echo "Installing Homebrew..."; \
		/bin/bash -c "$$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"; \
	fi
	@brew install helmfile helm
else
	$(error Unsupported operating system: $(UNAME_S))
endif
else
	$(error helmfile is required but not installed. Please install it manually.)
endif
endif

.PHONY: all
all: lint

.PHONY: lint
lint: prepare-env
	$(HELMFILE) lint

.PHONY: sync
sync: prepare-env
	$(HELMFILE) sync

.PHONY: apply
apply: prepare-env
	$(HELMFILE) apply

.PHONY: diff
diff: prepare-env
	$(HELMFILE) diff

.PHONY: destroy
destroy: prepare-env
	$(HELMFILE) destroy

.PHONY: template
template: prepare-env
	@if [ -d "$(CURDIR)/tmp/output" ]; then \
		echo "Cleaning up existing output directory..."; \
		rm -rf $(CURDIR)/tmp/output; \
	fi
	@mkdir -p $(CURDIR)/tmp/output
	$(HELMFILE) template --output-dir $(CURDIR)/tmp/output --debug

.PHONY: fetch
fetch: prepare-env
	@echo "Fetching Helm charts for current directory..."
	$(HELMFILE) fetch --output-dir $(CURDIR)/tmp || exit 1
	@echo "All Helm charts have been fetched to $(CURDIR)/tmp directory"


.PHONY: prepare-env
prepare-env:
	@if [ -f "values/.env-default.yaml" ]; then \
		exit 0; \
	fi; \
	echo "updating host paths using script..."; \
	bash -c 'if ! command -v bun > /dev/null; then \
		echo "Bun is not installed. Installing Bun..."; \
		curl -fsSL https://bun.sh/install | bash; \
		export BUN_INSTALL="$$HOME/.bun"; \
		export PATH="$$BUN_INSTALL/bin:$$PATH"; \
	fi; \
	\
	BUN_INSTALL_REGISTRY="https://registry.npmmirror.com" \
	bun run update-path.ts \
	values/env-template.yaml \
	values/.env-default.yaml'

# Help command
.PHONY: help
help:
	@echo "Available helmfile commands:"
	@echo "  make lint    - Run helmfile lint to check configuration"
	@echo "  make sync    - Run helmfile sync to synchronize configuration"
	@echo "  make apply   - Run helmfile apply to apply configuration"
	@echo "  make diff    - Run helmfile diff to view differences"
	@echo "  make destroy - Run helmfile destroy to delete resources"