define ColorInfo
  tput setaf 6;echo $1;tput sgr0
endef

define ColorError
  tput setaf 1;echo $1;tput sgr0
endef

ifneq ($(CONFIG_OUI_USE_HOST_NODE),)
NODE_PATH := PATH=$(PATH)
else
NODE_PATH := PATH=$(STAGING_DIR_HOSTPKG)/bin
endif

NODE := $(NODE_PATH) node
NPM := $(NODE_PATH) npm

NODE_BIN := $(shell $(NODE_PATH) $(STAGING_DIR_HOST)/bin/which node)

ifneq ($(NODE_BIN),)
NODE_VER := $(shell $(NODE_BIN) -v | sed 's/v//')
NODE_VER_MAJOR := $(shell echo $(NODE_VER) | cut -d. -f1)
NODE_VER_MINOR := $(shell echo $(NODE_VER) | cut -d. -f2)
endif

define CheckNode
  $(call ColorInfo, "Checking Node.js for building oui..."); \
  if [ -n "$(CONFIG_OUI_USE_HOST_NODE)" ]; \
  then \
      $(call ColorInfo, "Using Node.js from Host"); \
  else \
      $(call ColorInfo, "Using Node.js from OpenWrt"); \
  fi; \
  if [ -z "$(NODE_VER)" ]; \
  then \
    $(call ColorError, "Node.js $(1)+ is required");false; \
  else \
    $(call ColorInfo, "Node.js path: $(NODE_BIN)"); \
    $(call ColorInfo, "Node.js version: $(NODE_VER)"); \
    if [ $(NODE_VER_MAJOR) -lt $(shell echo $(1) | cut -d. -f1) ]; \
    then \
      $(call ColorError, "Node.js $(1)+ is required");false; \
    elif [ $(NODE_VER_MAJOR) -eq $(shell echo $(1) | cut -d. -f1) \
      -a $(NODE_VER_MINOR) -lt $(shell echo $(1) | cut -d. -f2) ]; \
    then \
      $(call ColorError, "Node.js $(1)+ is required");false; \
    fi \
  fi
endef