# Variables
ROOT_DIR := $(PWD)
RPMS_DIR := $(ROOT_DIR)/rpms
REPO_OPTIONS := --disablerepo=* --enablerepo=unkin

# Automatically find all package/version directories
PACKAGES := $(shell find $(RPMS_DIR) -mindepth 2 -maxdepth 2 -type d | sed "s|$(RPMS_DIR)/||")

# Default target to build all packages and versions
.PHONY: all list cache build clean
all: cache $(PACKAGES)

list:
	@echo "$(PACKAGES)"

cache:
	echo "Refreshing DNF cache..." && \
	dnf clean all && \
	dnf makecache

# Build specific package/version
.PHONY: $(PACKAGES)
$(PACKAGES):
	@PACKAGE_NAME=$(shell echo $(@) | cut -d/ -f1) && \
	PACKAGE_VERSION=$(shell echo $(@) | cut -d/ -f2) && \
	echo "Building RPM for $$PACKAGE_NAME version $$PACKAGE_VERSION" && \
	$(MAKE) build PACKAGE_NAME=$$PACKAGE_NAME PACKAGE_VERSION=$$PACKAGE_VERSION

# Build target
build:
	@mkdir -p $(ROOT_DIR)/dist/$(PACKAGE_NAME)/
	@echo "Preparing to build $(PACKAGE_NAME) version $(PACKAGE_VERSION)"
	@cd $(RPMS_DIR)/$(PACKAGE_NAME) && \
		export PACKAGE_RELEASE=$$(cat $(PACKAGE_VERSION)/release) && \
		export PACKAGE_FULL_NAME=$(PACKAGE_NAME)-$(PACKAGE_VERSION)-$$PACKAGE_RELEASE && \
		if dnf info $$PACKAGE_FULL_NAME $(REPO_OPTIONS) > /dev/null 2>&1; then \
			echo "Skipping build for $(PACKAGE_NAME) version $(PACKAGE_VERSION) (already exists in the repository)"; \
		else \
			echo "Building RPM for $(PACKAGE_NAME) version $(PACKAGE_VERSION)"; \
			docker build \
				--build-arg PACKAGE_VERSION=$(PACKAGE_VERSION) \
				--build-arg PACKAGE_RELEASE=$${PACKAGE_RELEASE} \
				-t $$(echo $(PACKAGE_NAME)-builder \
				| tr '[:upper:]' '[:lower:]') . && \
			docker create --name $(PACKAGE_NAME)-$(PACKAGE_VERSION)-builder \
				$$(echo $(PACKAGE_NAME)-builder | tr '[:upper:]' '[:lower:]') && \
			docker start -a $(PACKAGE_NAME)-$(PACKAGE_VERSION)-builder && \
			docker cp $(PACKAGE_NAME)-$(PACKAGE_VERSION)-builder:/app/dist/. $(ROOT_DIR)/dist/$(PACKAGE_NAME)/ && \
			docker rm $(PACKAGE_NAME)-$(PACKAGE_VERSION)-builder; \
		fi

# Clean target
clean:
	@echo "Cleaning build artifacts..."
	rm -rf $(ROOT_DIR)/dist