#---------------------------------------------------------------------------------
.SUFFIXES:
#---------------------------------------------------------------------------------

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

TOPDIR ?= $(CURDIR)
include $(DEVKITARM)/3ds_rules

#---------------------------------------------------------------------------------
# TARGET is the name of the output
# BUILD is the directory where object files & intermediate files will be placed
# SOURCES is a list of directories containing source code
# DATA is a list of directories containing data files
# INCLUDES is a list of directories containing header files
#
# NO_SMDH: if set to anything, no SMDH file is generated.
# APP_TITLE is the name of the app stored in the SMDH file (Optional)
# APP_DESCRIPTION is the description of the app stored in the SMDH file (Optional)
# APP_AUTHOR is the author of the app stored in the SMDH file (Optional)
# ICON is the filename of the icon (.png), relative to the project folder.
#   If not set, it attempts to use one of the following (in this order):
#     - <Project name>.png
#     - icon.png
#     - <libctru folder>/default_icon.png
#---------------------------------------------------------------------------------
APP_TITLE			:= FilePicker
APP_AUTHOR			:= Cpasjuste
APP_PRODUCT_CODE 	:= CTR-P-FIPI
APP_UNIQUE_ID 		:= 0x1948
BANNER_ICON			:= $(TOPDIR)/resources/icon.png
BANNER_IMAGE		:= $(TOPDIR)/resources/banner.png
BANNER_AUDIO		:= $(TOPDIR)/resources/audio.wav
RSF_CIA				:= $(TOPDIR)/resources/fp.rsf
ifeq ($(OS),Windows_NT)
	MAKEROM 	= $(DEVKITPRO)/citrus/tools/makerom.exe
	BANNERTOOL	= $(DEVKITPRO)/citrus/tools/bannertool.exe
else
	MAKEROM		= $(DEVKITPRO)/citrus/tools/makerom-linux
	BANNERTOOL	= $(DEVKITPRO)/citrus/tools/bannertool-linux
endif

TARGET		:=	$(notdir $(CURDIR))
BUILD		:=	build
SOURCES		:=	source
DATA		:=	data
INCLUDES	:=	source $(TOPDIR)/../libctrshell/libctrshell/include

#---------------------------------------------------------------------------------
# options for code generation
#---------------------------------------------------------------------------------
ARCH	:=	-march=armv6k -mtune=mpcore -mfloat-abi=hard

CFLAGS	:=	-g -Wall -O2 -mword-relocations \
			-fomit-frame-pointer -ffast-math \
			-mword-relocations -fomit-frame-pointer -ffast-math \
			-fno-pic -mcpu=mpcore -mlittle-endian -mtune=mpcore \
			$(ARCH)

CFLAGS	+=	-I$(DEVKITPRO)/portlibs/armv6k/include $(INCLUDE) \
			-DARM11 -D_3DS 

CXXFLAGS	:= $(CFLAGS) -fno-rtti -fno-exceptions -std=gnu++11

ASFLAGS	:=	-g $(ARCH)
LDFLAGS	=	-specs=3dsx.specs -g $(ARCH) -Wl,-Map,$(notdir $*.map)

LIBS	:=	-lctrshell -lctru -lm

#---------------------------------------------------------------------------------
# list of directories containing libraries, this must be the top level containing
# include and lib
#---------------------------------------------------------------------------------
LIBDIRS	:= $(CTRULIB) $(DEVKITPRO)/portlibs/armv6k \
			$(TOPDIR)/../libctrshell/libctrshell


#---------------------------------------------------------------------------------
# no real need to edit anything past this point unless you need to add additional
# rules for different file extensions
#---------------------------------------------------------------------------------
ifneq ($(BUILD),$(notdir $(CURDIR)))
#---------------------------------------------------------------------------------

export OUTPUT	:=	$(CURDIR)/$(TARGET)
export TOPDIR	:=	$(CURDIR)

export VPATH	:=	$(foreach dir,$(SOURCES),$(CURDIR)/$(dir)) \
			$(foreach dir,$(DATA),$(CURDIR)/$(dir))

export DEPSDIR	:=	$(CURDIR)/$(BUILD)

CFILES		:=	$(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.c)))
CPPFILES	:=	$(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.cpp)))
SFILES		:=	$(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.s)))
BINFILES	:=	$(foreach dir,$(DATA),$(notdir $(wildcard $(dir)/*.*)))

#---------------------------------------------------------------------------------
# use CXX for linking C++ projects, CC for standard C
#---------------------------------------------------------------------------------
ifeq ($(strip $(CPPFILES)),)
#---------------------------------------------------------------------------------
	export LD	:=	$(CC)
#---------------------------------------------------------------------------------
else
#---------------------------------------------------------------------------------
	export LD	:=	$(CXX)
#---------------------------------------------------------------------------------
endif
#---------------------------------------------------------------------------------

export OFILES	:=	$(addsuffix .o,$(BINFILES)) \
			$(CPPFILES:.cpp=.o) $(CFILES:.c=.o) $(SFILES:.s=.o)

export INCLUDE	:=	$(foreach dir,$(INCLUDES),-I$(CURDIR)/$(dir)) \
			$(foreach dir,$(LIBDIRS),-I$(dir)/include) \
			-I$(CURDIR)/$(BUILD)

export LIBPATHS	:=	$(foreach dir,$(LIBDIRS),-L$(dir)/lib)

ifeq ($(strip $(ICON)),)
	icons := $(wildcard *.png)
	ifneq (,$(findstring $(TARGET).png,$(icons)))
		export APP_ICON := $(TOPDIR)/$(TARGET).png
	else
		ifneq (,$(findstring icon.png,$(icons)))
			export APP_ICON := $(TOPDIR)/icon.png
		endif
	endif
else
	export APP_ICON := $(TOPDIR)/$(ICON)
endif

ifeq ($(strip $(NO_SMDH)),)
	export _3DSXFLAGS += --smdh=$(CURDIR)/$(TARGET).smdh
endif

.PHONY: $(BUILD) clean all

#---------------------------------------------------------------------------------
all: $(BUILD)

$(BUILD):
	@[ -d $@ ] || mkdir -p $@
	@$(MAKE) --no-print-directory -C $(BUILD) -f $(CURDIR)/Makefile

#---------------------------------------------------------------------------------
clean:
	@echo clean ...
	@rm -fr $(BUILD) $(TARGET).3dsx $(OUTPUT).smdh $(TARGET).elf


#---------------------------------------------------------------------------------
else

DEPENDS	:=	$(OFILES:.o=.d)

#---------------------------------------------------------------------------------
# main targets
#---------------------------------------------------------------------------------
ifeq ($(strip $(NO_SMDH)),)
$(OUTPUT).3dsx	:	$(OUTPUT).elf $(OUTPUT).smdh
#$(OUTPUT).cia
else
$(OUTPUT).3dsx	:	$(OUTPUT).elf
#$(OUTPUT).cia
endif
$(OUTPUT).elf	:	$(OFILES)

stripped.elf	:	$(OUTPUT).elf
	cp $(OUTPUT).elf stripped.elf
	$(PREFIX)strip stripped.elf

$(OUTPUT).cia	:	stripped.elf banner.bnr icon.icn
	$(MAKEROM) -f cia -o $(OUTPUT).cia -rsf $(RSF_CIA) -target t -exefslogo -elf stripped.elf \
		-icon $(TOPDIR)/$(BUILD)/icon.icn -banner $(TOPDIR)/$(BUILD)/banner.bnr -DAPP_TITLE="$(APP_TITLE)" \
		-DAPP_PRODUCT_CODE="$(APP_PRODUCT_CODE)" -DAPP_UNIQUE_ID="$(APP_UNIQUE_ID)"

banner.bnr: $(BANNER_IMAGE) $(BANNER_AUDIO)
	$(BANNERTOOL) makebanner -i $(BANNER_IMAGE) -a $(BANNER_AUDIO) -o $(TOPDIR)/$(BUILD)/banner.bnr
# > /dev/null

icon.icn: $(BANNER_ICON)
	$(BANNERTOOL) makesmdh -s "$(APP_TITLE)" -l "$(APP_TITLE)" -p "$(APP_AUTHOR)" -i $(BANNER_ICON) -o $(TOPDIR)/$(BUILD)/icon.icn
# > /dev/null

#---------------------------------------------------------------------------------
# you need a rule like this for each extension you use as binary data
#---------------------------------------------------------------------------------
%.bin.o	:	%.bin
#---------------------------------------------------------------------------------
	@echo $(notdir $<)
	@$(bin2o)

# WARNING: This is not the right way to do this! TODO: Do it right!
#---------------------------------------------------------------------------------
%.vsh.o	:	%.vsh
#---------------------------------------------------------------------------------
	@echo $(notdir $<)
	@python $(AEMSTRO)/aemstro_as.py $< ../$(notdir $<).shbin
	@bin2s ../$(notdir $<).shbin | $(PREFIX)as -o $@
	@echo "extern const u8" `(echo $(notdir $<).shbin | sed -e 's/^\([0-9]\)/_\1/' | tr . _)`"_end[];" > `(echo $(notdir $<).shbin | tr . _)`.h
	@echo "extern const u8" `(echo $(notdir $<).shbin | sed -e 's/^\([0-9]\)/_\1/' | tr . _)`"[];" >> `(echo $(notdir $<).shbin | tr . _)`.h
	@echo "extern const u32" `(echo $(notdir $<).shbin | sed -e 's/^\([0-9]\)/_\1/' | tr . _)`_size";" >> `(echo $(notdir $<).shbin | tr . _)`.h
	@rm ../$(notdir $<).shbin

-include $(DEPENDS)

#---------------------------------------------------------------------------------------
endif
#---------------------------------------------------------------------------------------
