.PHONY: all node-deps clean run

TARGET=public/elm.js
SOURCE=src/App.elm

ELM_FILES = $(shell find src -type f -name '*.elm')
NODE_BIN = ./node_modules/.bin
ELM = $(NODE_BIN)/elm
ELM_LIVE = $(NODE_BIN)/elm-live

ELMMAKE_FLAGS =
ifeq ($(DEBUG),1)
	ELMMAKE_FLAGS += --debug
endif

all: node-deps $(TARGET)

node-deps:
	npm i

$(TARGET): $(ELM_FILES)
	$(ELM) make $(ELMMAKE_FLAGS) $(SOURCE) --output $@

clean-deps:
	rm -rf elm-stuff
	rm -rf node_modules

clean:
	rm -f $(TARGET)
	rm -rf elm-stuff/build-artifacts

run: all
	PATH="$(NODE_BIN):$$PATH" $(ELM_LIVE) $(SOURCE) --dir public --open -- $(ELMMAKE_FLAGS) --output $(TARGET)