BASE_UXN   := src/uxn
SRC_DIR    ?= src
BUILD_DIR  ?= build
SRC_MAIN   ?= $(SRC_DIR)/main.c
EXE_NAME   ?= uxnfb
BIN        := $(BUILD_DIR)/$(EXE_NAME)
UXN_HEAD   := $(BASE_UXN)/src/uxn.h
TAL_SRC    ?= $(BASE_UXN)/projects/examples/devices/screen.tal
UXN_ROM    ?= $(BUILD_DIR)/rom.rom
UXN_ASM    ?= $(BUILD_DIR)/uxnasm
KBD_PATH   ?= /dev/input/event1
MOUSE_PATH ?= /dev/input/mice
C_DEFINES  := -DKBD_PATH=\"$(KBD_PATH)\" -DMOUSE_PATH=\"$(MOUSE_PATH)\"

CC        ?= cc
CFLAGS    := -Wall -Wextra -static

REL_FLAGS := -DNDEBUG -O2
DEB_FLAGS := -DDEBUG -O0 -g

DEBUG ?= 0
ifeq ($(DEBUG), 1)
	CFLAGS += $(DEB_FLAGS)
else ifeq ($(DEBUG), 2)
	CFLAGS += $(DEB_FLAGS) -fsanitize=address
else
	CFLAGS += $(REL_FLAGS)
endif

.PHONY: build run clean

main: $(BIN)

$(BIN): $(SRC_MAIN) $(BUILD_DIR) $(UXN_HEAD)
	$(CC) $(CFLAGS) -o $(BIN) $(SRC_MAIN) $(C_DEFINES)

$(BUILD_DIR):
	mkdir -p $(BUILD_DIR)

$(UXN_HEAD):
	git submodule init
	git submodule update

$(UXN_ASM): $(UXN_HEAD)
	$(CC) $(CFLAGS) -o $(UXN_ASM) $(BASE_UXN)/src/uxnasm.c

$(UXN_ROM): $(UXN_ASM)
	./$(UXN_ASM) $(TAL_SRC) $(UXN_ROM)

run: $(BIN) $(UXN_ROM)
	./$(BIN) $(UXN_ROM)

clean:
	rm -rf $(BUILD_DIR)