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

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

TOPDIR ?= $(CURDIR)

include $(DEVKITPRO)/wups/share/wups_rules

WUT_ROOT := $(DEVKITPRO)/wut
WUMS_ROOT := $(DEVKITPRO)/wums

#-------------------------------------------------------------------------------
# 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
#-------------------------------------------------------------------------------
TARGET		:=	wiiload
BUILD		:=	build
SOURCES		:=	src \
                src/fs \
                src/utils
DATA		:=	data
INCLUDES	:=	src

#-------------------------------------------------------------------------------
# options for code generation
#-------------------------------------------------------------------------------
CFLAGS	:=	-Wall -O2 -ffunction-sections \
			$(MACHDEP)

CFLAGS	+=	$(INCLUDE) -D__WIIU__ -D__WUT__ -D__WUPS__ 

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

ASFLAGS	:=	-g $(ARCH)
LDFLAGS	=	-g $(ARCH) $(RPXSPECS) -Wl,-Map,$(notdir $*.map) -T$(WUPS_ROOT)/share/libwupsbackend.ld $(WUPSSPECS)

ifeq ($(DEBUG),1)
CXXFLAGS += -DDEBUG -g
CFLAGS += -DDEBUG -g
endif

ifeq ($(DEBUG),VERBOSE)
CXXFLAGS += -DDEBUG -DVERBOSE_DEBUG -g
CFLAGS += -DDEBUG -DVERBOSE_DEBUG -g
endif

LIBS	:= -lwups -lwut -lwupsbackend -lz -lrpxloader

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

#-------------------------------------------------------------------------------
# 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)

.PHONY: $(BUILD) clean all

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

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

#-------------------------------------------------------------------------------
clean:
	@echo clean ...
	@rm -fr $(BUILD) $(TARGET).wps $(TARGET).elf

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

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

#-------------------------------------------------------------------------------
# main targets
#-------------------------------------------------------------------------------
all	:	$(OUTPUT).wps

$(OUTPUT).wps	:	$(OUTPUT).elf
$(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
#-------------------------------------------------------------------------------