ifneq (,$(wildcard .env))
  include .env
  export $(shell sed 's/=.*//' .env)
endif

ENV = esp32dev

BUILD_FLAGS = -D WIFI_SSID="\\\"$(WIFI_SSID)\\\"" \
              -D WIFI_PASS="\\\"$(WIFI_PASS)\\\"" \
              -D MQTT_URI="\\\"$(MQTT_URI)\\\""

PORT ?= $(shell ls /dev/ttyUSB* /dev/ttyACM* 2>/dev/null | head -n 1)

ifdef BAUD
  BAUD := $(BAUD)
else ifneq ("$(wildcard .baud_detected)","")
  BAUD := $(shell cat .baud_detected)
else
  BAUD := 115200
endif

detect-baud:
	@echo "[*] Detecting correct baud rate..."
	@if screen -L -dmS test_screen $(PORT) 74880; then \
		sleep 1; \
		grep -q "rst:" screenlog.0 && echo "74880" > .baud_detected || echo "115200" > .baud_detected; \
		rm -f screenlog.0; \
		screen -S test_screen -X quit; \
	else \
		echo "115200" > .baud_detected; \
	fi
	@echo "[✓] Set BAUD=$$(cat .baud_detected)"

.PHONY: build upload monitor clean debug-flags test detect-baud

build:
	@echo "Starting build with SSID=$(WIFI_SSID)"
	PLATFORMIO_BUILD_FLAGS="$(BUILD_FLAGS)" pio run -e $(ENV)

upload:
	@echo "Starting uploading process..."
	PLATFORMIO_BUILD_FLAGS="$(BUILD_FLAGS)" pio run -e $(ENV) -t upload

monitor:
	@PORT=$(PORT); \
	BAUD=$(BAUD); \
	if [ -z "$$PORT" ]; then echo "[ERROR] Port /dev/ttyUSB* or /dev/ttyACM* not found"; exit 1; fi; \
	echo "[*] Opening monitor: $$PORT @ $$BAUD baud"; \
	screen $$PORT $$BAUD

clean:
	pio run -e $(ENV) -t clean

debug-flags:
	@echo $(BUILD_FLAGS)

test:
	@echo "Starting unit tests..."
	PLATFORMIO_BUILD_FLAGS="$(BUILD_FLAGS)" pio test -e $(ENV) -vvv