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

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

# Uncomment to enable verbose output.
#V:=1

TOPDIR ?= $(CURDIR)
include $(DEVKITPRO)/libnx/switch_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
# ROMFS is the directory containing data to be added to RomFS, relative to the Makefile (Optional)
#
# NO_ICON: if set to anything, do not use icon.
# NO_NACP: if set to anything, no .nacp file is generated.
# APP_TITLE is the name of the app stored in the .nacp file (Optional)
# APP_AUTHOR is the author of the app stored in the .nacp file (Optional)
# APP_VERSION is the version of the app stored in the .nacp file (Optional)
# APP_TITLEID is the titleID of the app stored in the .nacp file (Optional)
# ICON is the filename of the icon (.jpg), relative to the project folder.
#   If not set, it attempts to use one of the following (in this order):
#     - <Project name>.jpg
#     - icon.jpg
#     - <libnx folder>/default_icon.jpg
#
# CONFIG_JSON is the filename of the NPDM config file (.json), relative to the project folder.
#   If not set, it attempts to use one of the following (in this order):
#     - <Project name>.json
#     - config.json
#   If a JSON file is provided or autodetected, an ExeFS PFS0 (.nsp) is built instead
#   of a homebrew executable (.nro). This is intended to be used for sysmodules.
#   NACP building is skipped as well.
#---------------------------------------------------------------------------------

ROOTDIR				?=	$(shell dirname $(realpath $(firstword $(MAKEFILE_LIST))))

GIT_BRANCH			:=	$(strip $(shell git rev-parse --abbrev-ref HEAD 2>/dev/null))
GIT_COMMIT			:=	$(strip $(shell git rev-parse --short HEAD 2>/dev/null))
GIT_REV				:=	${GIT_BRANCH}-${GIT_COMMIT}

ifneq (,$(strip $(shell git status --porcelain 2>/dev/null)))
GIT_REV				:=	$(GIT_REV)-dirty
endif

ifeq (,$(GIT_BRANCH))
    $(error GIT_BRANCH is empty)
endif

ifeq (,$(GIT_COMMIT))
    $(error GIT_COMMIT is empty)
endif

VERSION_MAJOR		:=	2
VERSION_MINOR		:=	0
VERSION_MICRO		:=	0

APP_TITLE			:=	nxdumptool
APP_AUTHOR			:=	DarkMatterCore
APP_VERSION			:=	${VERSION_MAJOR}.${VERSION_MINOR}.${VERSION_MICRO}

# TODO: remove this after the PoC builds are no longer needed.
ifneq ($(origin BUILD_TYPE),undefined)
APP_TITLE			:=	${BUILD_TYPE}
endif

BUILD_TIMESTAMP		:=	$(strip $(shell date --utc '+%Y-%m-%d %T UTC'))

TARGET				:=	${APP_TITLE}
BUILD				:=	build
SOURCES				:=	source source/core source/core/fatfs source/core/devoptab source/tasks source/utils source/views
DATA				:=	data
ICON				:=	romfs/icon/${APP_TITLE}.jpg
INCLUDES			:=	include
ROMFS       		:=	romfs

BOREALIS_PATH		:=	libs/borealis
BOREALIS_RESOURCES	:=	romfs:/

USBHSFS_PATH		:=	$(ROOTDIR)/libs/libusbhsfs

#---------------------------------------------------------------------------------
# options for code generation
#---------------------------------------------------------------------------------
ARCH		:=	-march=armv8-a+crc+crypto -mtune=cortex-a57 -mtp=soft -fPIE

CFLAGS		:=	-g -Wall -Werror -O2 -ffunction-sections $(ARCH) $(DEFINES) $(INCLUDE) -D__SWITCH__
CFLAGS		+=	-DVERSION_MAJOR=${VERSION_MAJOR} -DVERSION_MINOR=${VERSION_MINOR} -DVERSION_MICRO=${VERSION_MICRO}
CFLAGS		+=	-DAPP_TITLE="\"${APP_TITLE}\"" -DAPP_AUTHOR="\"${APP_AUTHOR}\"" -DAPP_VERSION="\"${APP_VERSION}\""
CFLAGS		+=	-DGIT_BRANCH="\"${GIT_BRANCH}\"" -DGIT_COMMIT="\"${GIT_COMMIT}\"" -DGIT_REV="\"${GIT_REV}\""
CFLAGS		+=	-DBUILD_TIMESTAMP="\"${BUILD_TIMESTAMP}\"" -DBOREALIS_RESOURCES="\"${BOREALIS_RESOURCES}\"" -D_GNU_SOURCE
CFLAGS		+=	-fmacro-prefix-map=$(ROOTDIR)=

CXXFLAGS	:=	$(CFLAGS) -std=c++20

ASFLAGS		:=	-g $(ARCH)
LDFLAGS		:=	-specs=$(DEVKITPRO)/libnx/switch.specs -g $(ARCH) -Wl,-Map,$(notdir $*.map)

LIBS		:=	-lcurl -lmbedtls -lmbedx509 -lmbedcrypto -lxml2 -ljson-c -lz -lusbhsfs -lntfs-3g -llwext4 -lnx

#---------------------------------------------------------------------------------
# list of directories containing libraries, this must be the top level containing
# include and lib
#---------------------------------------------------------------------------------
LIBDIRS	:= $(PORTLIBS) $(LIBNX) $(USBHSFS_PATH)

include $(ROOTDIR)/$(BOREALIS_PATH)/library/borealis.mk

#---------------------------------------------------------------------------------
# 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_BIN	:=	$(addsuffix .o,$(BINFILES))
export OFILES_SRC	:=	$(CPPFILES:.cpp=.o) $(CFILES:.c=.o) $(SFILES:.s=.o)
export OFILES 	:=	$(OFILES_BIN) $(OFILES_SRC)
export HFILES_BIN	:=	$(addsuffix .h,$(subst .,_,$(BINFILES)))

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 $(CONFIG_JSON)),)
	jsons := $(wildcard *.json)
	ifneq (,$(findstring $(TARGET).json,$(jsons)))
		export APP_JSON := $(TOPDIR)/$(TARGET).json
	else
		ifneq (,$(findstring config.json,$(jsons)))
			export APP_JSON := $(TOPDIR)/config.json
		endif
	endif
else
	export APP_JSON := $(TOPDIR)/$(CONFIG_JSON)
endif

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

ifeq ($(strip $(NO_ICON)),)
	export NROFLAGS += --icon=$(APP_ICON)
endif

ifeq ($(strip $(NO_NACP)),)
	export NROFLAGS += --nacp=$(CURDIR)/$(TARGET).nacp
endif

ifneq ($(APP_TITLEID),)
	export NACPFLAGS += --titleid=$(APP_TITLEID)
endif

ifneq ($(ROMFS),)
	export NROFLAGS += --romfsdir=$(CURDIR)/$(ROMFS)
endif

.PHONY: $(BUILD) all clean clean_all

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

$(BUILD): usbhsfs
	@[ -d $@ ] || mkdir -p $@
	@MSYS2_ARG_CONV_EXCL="-D;$(MSYS2_ARG_CONV_EXCL)" $(MAKE) --no-print-directory -C $(BUILD) -f $(CURDIR)/Makefile

usbhsfs:
	@$(MAKE) --no-print-directory -C $(USBHSFS_PATH) BUILD_TYPE=GPL release

#---------------------------------------------------------------------------------
clean:
	@echo clean ...
ifeq ($(strip $(APP_JSON)),)
	@rm -fr $(BUILD) $(TARGET).nro $(TARGET).nacp $(TARGET).elf
else
	@rm -fr $(BUILD) $(TARGET).nsp $(TARGET).nso $(TARGET).npdm $(TARGET).elf
endif

clean_all: clean
	@$(MAKE) --no-print-directory -C $(USBHSFS_PATH) clean

#---------------------------------------------------------------------------------
else
.PHONY:	all

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

#---------------------------------------------------------------------------------
# main targets
#---------------------------------------------------------------------------------
ifeq ($(strip $(APP_JSON)),)

all	:	$(OUTPUT).nro

ifeq ($(strip $(NO_NACP)),)
$(OUTPUT).nro	:	$(OUTPUT).elf $(OUTPUT).nacp
else
$(OUTPUT).nro	:	$(OUTPUT).elf
endif

else

all	:	$(OUTPUT).nsp

$(OUTPUT).nsp	:	$(OUTPUT).nso $(OUTPUT).npdm

$(OUTPUT).nso	:	$(OUTPUT).elf

endif

$(OUTPUT).elf	:	$(OFILES)

$(OFILES_SRC)	: $(HFILES_BIN)

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

-include $(DEPENDS)

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