MAKEFLAGS += -R -r

ARDUINO_CLI = arduino-cli
ZIP         = zip

SKETCH   = max80
TARGET   = output/$(SKETCH).ino.bin
GENFILES = www.zip
WWW      = www
PORT	?= /dev/ttyACM2

BOARD    = esp32:esp32:esp32s2usb

all: $(TARGET)

$(TARGET): $(shell find $(SKETCH) -type f) $(GENFILES)
	mkdir -p build output
	cd $(SKETCH) && \
		$(ARDUINO_CLI) compile -b $(BOARD) --warnings all \
			--build-path ../build --output-dir ../output

.PHONY: zip
zip:
	mkdir -p zip
	cd www && \
		TZ=GMT0 \
		$(ZIP) -9DrpX -FS ../zip/www.zip . \
			-x '.*' -x '#*' -x '*~' -x '*.bak'

# Ugly hack but needed to avoid unnecessary rebuilds
www.zip: zip
	if [ ! -f $@ ] || [ zip/$@ -nt $@ ]; then \
		cp -f zip/$@ $@; \
		rm -f build/sketch/www.c build/sketch/www.c.*; \
	fi

upload: $(TARGET)
	$(ARDUINO_CLI) upload -i $(TARGET) -p $(PORT) -b $(BOARD) $(SKETCH)

clean:
	rm -rf build zip $(GENFILES)

spotless: clean
	rm -rf output