ifeq ($(strip $(DEVKITARM)),)
$(error "Please set DEVKITARM in your environment. export DEVKITARM=<path to>devkitARM")
endif

include $(DEVKITARM)/base_rules

################################################################################

NYX_LOAD_ADDR := 0x81000000
NYX_MAGIC := 0x43544347 #"GCTC"
include ./../Versions.inc

################################################################################

TARGET := nyx
BUILDDIR := ./../build
OUTPUTDIR := ./../output
SOURCEDIR = nyx_gui
BDKDIR := bdk
BDKINC := -I../$(BDKDIR)
VPATH = $(dir $(wildcard ./$(SOURCEDIR)/)) $(dir $(wildcard ./$(SOURCEDIR)/*/)) $(dir $(wildcard ./$(SOURCEDIR)/*/*/))
VPATH += $(dir $(wildcard ./$(SOURCEDIR)/*/*/*/)) $(dir $(wildcard ./$(SOURCEDIR)/*/*/*/*/))
VPATH += $(dir $(wildcard ../$(BDKDIR)/)) $(dir $(wildcard ../$(BDKDIR)/*/)) $(dir $(wildcard ../$(BDKDIR)/*/*/)) $(dir $(wildcard ../$(BDKDIR)/*/*/*/))

# Main and graphics.
OBJS = $(addprefix $(BUILDDIR)/$(TARGET)/, \
	start.o exception_handlers.o \
	nyx.o heap.o \
	gfx.o \
	gui.o gui_info.o gui_tools.o gui_options.o gui_emmc_tools.o gui_emummc_tools.o gui_tools_partition_manager.o \
	fe_emummc_tools.o fe_emmc_tools.o \
)

# Hardware.
OBJS += $(addprefix $(BUILDDIR)/$(TARGET)/, \
	bpmp.o ccplex.o clock.o di.o gpio.o i2c.o irq.o pinmux.o pmc.o se.o smmu.o tsec.o uart.o \
	fuse.o kfuse.o \
	mc.o sdram.o minerva.o ramdisk.o \
	sdmmc.o sdmmc_driver.o nx_emmc.o nx_emmc_bis.o nx_sd.o \
	bm92t36.o bq24193.o max17050.o max7762x.o max77620-rtc.o regulator_5v.o \
	touch.o joycon.o tmp451.o fan.o \
	usbd.o xusbd.o usb_descriptors.o usb_gadget_ums.o usb_gadget_hid.o \
	hw_init.o \
)

# Utilities.
OBJS += $(addprefix $(BUILDDIR)/$(TARGET)/, \
	btn.o dirlist.o ianos.o util.o \
	config.o ini.o \
	sprintf.o \
)

# Horizon.
OBJS += $(addprefix $(BUILDDIR)/$(TARGET)/, \
	nx_emmc.o \
	hos.o pkg1.o pkg2.o sept.o \
)

# Libraries.
OBJS += $(addprefix $(BUILDDIR)/$(TARGET)/, \
	diskio.o ff.o ffunicode.o ffsystem.o \
	elfload.o elfreloc_arm.o blz.o \
	lv_group.o lv_indev.o lv_obj.o lv_refr.o lv_style.o lv_vdb.o \
	lv_draw.o lv_draw_rbasic.o lv_draw_vbasic.o lv_draw_arc.o lv_draw_img.o \
	lv_draw_label.o lv_draw_line.o lv_draw_rect.o lv_draw_triangle.o \
	lv_hal_disp.o lv_hal_indev.o lv_hal_tick.o \
	interui_20.o interui_30.o ubuntu_mono.o hekate_symbol_20.o hekate_symbol_30.o hekate_symbol_120.o lv_font_builtin.o \
	lv_anim.o lv_area.o lv_circ.o lv_color.o lv_font.o lv_ll.o lv_math.o lv_mem.o lv_task.o lv_txt.o lv_gc.o \
	lv_bar.o lv_btn.o lv_btnm.o lv_cb.o lv_cont.o lv_ddlist.o lv_img.o lv_label.o lv_line.o lv_list.o lv_lmeter.o lv_mbox.o \
	lv_page.o lv_roller.o lv_slider.o lv_sw.o lv_tabview.o lv_ta.o lv_win.o lv_log.o lv_imgbtn.o \
	lv_theme.o lv_theme_hekate.o \
)

GFX_INC   := '"../nyx/$(SOURCEDIR)/gfx/gfx.h"'
FFCFG_INC := '"../nyx/$(SOURCEDIR)/libs/fatfs/ffconf.h"'

################################################################################

CUSTOMDEFINES := -DNYX_LOAD_ADDR=$(NYX_LOAD_ADDR) -DNYX_MAGIC=$(NYX_MAGIC)
CUSTOMDEFINES += -DNYX_VER_MJ=$(NYXVERSION_MAJOR) -DNYX_VER_MN=$(NYXVERSION_MINOR) -DNYX_VER_HF=$(NYXVERSION_HOTFX) -DNYX_RESERVED=$(NYXVERSION_RSVD)
CUSTOMDEFINES += -DNYX -DGFX_INC=$(GFX_INC) -DFFCFG_INC=$(FFCFG_INC)

#CUSTOMDEFINES += -DDEBUG

# UART Logging: Max baudrate 12.5M. Disables Joycon on Nyx if UARTB or UARTC.
# DEBUG_UART_PORT - 0: UART_A, 1: UART_B, 2: UART_C.
#CUSTOMDEFINES += -DDEBUG_UART_BAUDRATE=115200 -DDEBUG_UART_INVERT=0 -DDEBUG_UART_PORT=0

# LvGL UART LOG.
#CUSTOMDEFINES += -DDEBUG_UART_LV_LOG

#TODO: Considering reinstating some of these when pointer warnings have been fixed.
WARNINGS := -Wall -Wno-array-bounds -Wno-stringop-overread -Wno-stringop-overflow

ARCH := -march=armv4t -mtune=arm7tdmi -mthumb-interwork
CFLAGS = $(ARCH) -O2 -g -nostdlib -ffunction-sections -fdata-sections -fomit-frame-pointer -std=gnu11 $(WARNINGS) $(CUSTOMDEFINES)
LDFLAGS = $(ARCH) -nostartfiles -lgcc -Wl,--nmagic,--gc-sections -Xlinker --defsym=NYX_LOAD_ADDR=$(NYX_LOAD_ADDR)

################################################################################

.PHONY: all clean

all: $(TARGET).bin
	@echo "--------------------------------------"
	@echo -n "Nyx size:     "
	$(eval BIN_SIZE = $(shell wc -c < $(OUTPUTDIR)/$(TARGET).bin))
	@echo $(BIN_SIZE)" Bytes"
	@echo "--------------------------------------"

clean:
	@rm -rf $(OBJS)
	@rm -rf $(BUILDDIR)
	@rm -rf $(OUTPUTDIR)

$(TARGET).bin: $(BUILDDIR)/$(TARGET)/$(TARGET).elf
	$(OBJCOPY) -S -O binary $< $(OUTPUTDIR)/$@

$(BUILDDIR)/$(TARGET)/$(TARGET).elf: $(OBJS)
	@$(CC) $(LDFLAGS) -T $(SOURCEDIR)/link.ld $^ -o $@
	@echo "Nyx was built with the following flags:\nCFLAGS:  "$(CFLAGS)"\nLDFLAGS: "$(LDFLAGS)

$(BUILDDIR)/$(TARGET)/%.o: %.c
	@echo Building $@
	@$(CC) $(CFLAGS) $(BDKINC) -c $< -o $@

$(BUILDDIR)/$(TARGET)/%.o: %.S
	@echo Building $@
	@$(CC) $(CFLAGS) -c $< -o $@

$(OBJS): $(BUILDDIR)/$(TARGET)

$(BUILDDIR)/$(TARGET):
	@mkdir -p "$(BUILDDIR)"
	@mkdir -p "$(BUILDDIR)/$(TARGET)"
	@mkdir -p "$(OUTPUTDIR)"
