# dm-framework.mk - Common rules for DM Framework

DM_SCRIPT_DIR ?= $(STAGING_DIR)/usr/lib/dm-framework/scripts
JSON2CODE = $(DM_SCRIPT_DIR)/json2code.js

# Macro to generate code
# $(1): Input directory (datamodels)
# $(2): Output directory (where generated files go)
# $(3): Vendor Prefix (optional)
define Build/Compile/DM
	$(INSTALL_DIR) $(2)
	@# Install npm dependencies if not already installed
	@if [ ! -d "$(DM_SCRIPT_DIR)/node_modules" ]; then \
		cd $(DM_SCRIPT_DIR) && npm install --production; \
	fi
	node $(JSON2CODE) -i $(1) -o $(2) $(if $(3),--vendor-prefix $(3))
	$(TARGET_CC) $(TARGET_CFLAGS) -I$(2) -I$(STAGING_DIR)/usr/include/ -fPIC -c $(2)/dm.c -o $(2)/dm.o
	$(TARGET_CC) $(TARGET_LDFLAGS) -shared -o $(2)/lib$(PKG_NAME).so $(2)/dm.o
endef

# Macro to install DM
# $(1): Input directory (datamodels)
# $(2): Output directory (build dir)
# $(3): Destination directory (rootfs)
# $(4): Package Name (subdir in /etc/bbfdm/dmf)
define Build/Install/DM
	$(INSTALL_DIR) $(3)/etc/bbfdm/dmf/$(4)
	$(CP) $(2)/lib$(PKG_NAME).so $(3)/etc/bbfdm/dmf/$(4)/
	$(CP) $(1)/*.js $(3)/etc/bbfdm/dmf/$(4)/
	$(CP) $(2)/default.db $(3)/etc/bbfdm/dmf/default_dm.db
	$(CP) $(2)/exports.js $(3)/etc/bbfdm/dmf/$(4)/exports.js
	$(CP) $(2)/dm_consts.js $(3)/etc/bbfdm/dmf/$(4)/dm_consts.js
endef