# Makefile for Waku Go Bindings

# The LIBWAKU_LIB_PATH and LIBWAKU_HEADER_PATH env vars should be defined beforehand
# Therefore, we assume the libwaku library and headers are located in the specified paths
export CGO_CFLAGS="-I${LIBWAKU_HEADER_PATH}/"
export CGO_LDFLAGS="-L${LIBWAKU_LIB_PATH}/ -lsds -Wl,-rpath,${LIBWAKU_LIB_PATH}/"

# Expected files
HEADER_FILE := $(LIBWAKU_HEADER_PATH)/libwaku.h
LIB_FILES   := $(wildcard $(LIBWAKU_LIB_PATH)/libwaku.*)

.PHONY: all clean prepare build

# Default target
all: build

# Validate necessary folders and files
check-folders:
	@echo Checking libwaku header directory ...
	@if [ -z "$(LIBWAKU_HEADER_PATH)" ]; then \
		echo "ERROR: LIBWAKU_HEADER_PATH not set"; exit 1; \
	fi
	@if [ ! -d "$(LIBWAKU_HEADER_PATH)" ]; then \
		echo "ERROR: Header path does not exist: $(LIBWAKU_HEADER_PATH)"; exit 1; \
	fi

	@echo Checking libwaku lib directory ...
	@if [ -z "$(LIBWAKU_LIB_PATH)" ]; then \
		echo "ERROR: LIBWAKU_LIB_PATH not set"; exit 1; \
	fi
	@if [ ! -d "$(LIBWAKU_LIB_PATH)" ]; then \
		echo "ERROR: Library path does not exist: $(LIBWAKU_LIB_PATH)"; exit 1; \
	fi

	@echo Checking for libwaku.h ...
	@if [ ! -f "$(HEADER_FILE)" ]; then \
		echo "ERROR: libwaku.h not found at: $(HEADER_FILE)"; exit 1; \
	fi

	@echo Checking for libwaku library file ...
	@if [ -z "$(LIB_FILES)" ]; then \
		echo "ERROR: No libwaku library file found in: $(LIBWAKU_LIB_PATH)"; exit 1; \
	fi

# Build SDS Go Bindings
build: check-folders
	@echo "Building Waku Go Bindings..."
	go build ./...

# Clean up generated files
clean:
	@echo "Cleaning up..."
	@rm -f waku-go-bindings