# Run inside `nix develop`, which provides pio, lua and a compiler.
# LUA is pinned to 5.4 to match the interpreter vendored into the firmware.

LUA ?= lua
CXX ?= c++
CXXFLAGS ?= -std=c++11 -Wall -Wextra
BUILD_DIR := .pio/build/esp32-32e
SHARED_LUA := lib/esp32-lua-api/lua/lib
LUA_TESTS := test/keyboard.lua test/settings_calibration.lua test/statusbar_dirty.lua test/settings_busy.lua test/ble.lua

.PHONY: test test-lua test-cpp test-shared sdcard compiledb build upload monitor clean format

# C++ only: Lua is formatted on save by lua-language-server, which reads the
# same .editorconfig, so a second Lua formatter here would only fight it.
format:
	@clang-format -i $(shell find src test -name '*.cpp' -o -name '*.h')
	@$(MAKE) -C lib/esp32-lua-api format

# The shared modules ship from the submodule rather than a copy in this repo, so an app
# on the card and an app on the host resolve the same ui.lua. Run before flashing or
# booting the emulator, both of which read sdcard/ directly.
sdcard:
	@cp $(SHARED_LUA)/*.lua sdcard/.lua/lib/
	@echo "sdcard/.lua/lib <- $(SHARED_LUA)"

# The layout engine, the shared modules and the API declarations are tested in
# lib/esp32-lua-api; what is left here is this firmware's own Lua and gfx.
test: test-cpp test-lua test-shared

test-shared:
	@$(MAKE) -C lib/esp32-lua-api test

test-lua:
	@$(LUA) -e 'assert(_VERSION == "Lua 5.4", "tests need Lua 5.4 to match the firmware, got " .. _VERSION)'
	@for t in $(LUA_TESTS); do printf '%-32s ' "$$t"; $(LUA) "$$t" || exit 1; done

test-cpp: $(BUILD_DIR)/round_rect_test
	@printf '%-32s ' test/round_rect_test.cpp; $(BUILD_DIR)/round_rect_test

$(BUILD_DIR)/round_rect_test: test/round_rect_test.cpp src/gfx/round_rect.h
	@mkdir -p $(@D)
	@$(CXX) $(CXXFLAGS) $< -o $@

compiledb:
	pio run -t compiledb

build:
	pio run

upload:
	pio run -t upload

monitor:
	pio device monitor

clean:
	pio run -t clean
	rm -f $(BUILD_DIR)/round_rect_test