# SETTINGS
OBJECT_DIR 	= ../build
WEBOBJECT_DIR 	= ../web-build
EXEC 		= ../mps
WEBHTML		= $(WEBOBJECT_DIR)/mps.html
# WEBEXEC		= $(WEBOBJECT_DIR)/mps.js
WEBEXEC		= ~/Projekte/web/html-quintern/src/script/mps/mps-wasm.js

# LOG_LEVEL   = LOG_LEVEL_0
CXX			= /usr/bin/g++
CXXFLAGS	= -std=c++23 -MMD -MP -Wpedantic -Wall  #-O3: optimierungsstufe 3, -MMD .d files, -MP leeres Target, Wextra alle Warnungen
CXXDEBUGFLAGS = -g -fsanitize=address -fno-omit-frame-pointer -O1

WEBCXX		= em++
WEBCXXFLAGS = --cache "$(WEBOBJECT_DIR)/emscripten-cache" -Wno-c++11-narrowing -Wno-unused-main -DEMSCRIPTEN
WEBCXXDEBUGFLAGS = -gsource-map -g2 -O0
WEBLDFLAGS 	= -s EXPORTED_FUNCTIONS="['_free']" -s ASYNCIFY -s EXPORTED_RUNTIME_METHODS="['cwrap', 'getValue']" -lembind -s INITIAL_MEMORY=2GB -s ALLOW_MEMORY_GROWTH=1 
# treated as error by em++
LDFLAGS		= #-lgzutil
IFLAGS 		= -I../include/

SRCDIRS 	= $(wildcard */)
IFLAGS		+= $(foreach dir,$(SRCDIRS), -I$(dir))
IFLAGS      += $(foreach dir,$(SRCDIRS), -I../$(dir))
IFLAGS      += -I../ -I./
CXXFLAGS    += $(IFLAGS)


# CXXFLAGS  	+= -D $(LOG_LEVEL)
# CXXFLAGS 	+= -fsanitize=address
# CXXFLAGS 	+= -fconcepts-diagnostics-depth=2

SRC 		= $(wildcard *.cpp) $(wildcard */*.cpp) 
# OBJECTS 	= $(SRC:%.cpp=$(OBJECT_DIR)/%.o)
OBJECTS 	= $($(notdir SRC):%.cpp=$(OBJECT_DIR)/%.o)
WEBOBJECTS 	= $($(notdir SRC):%.cpp=$(WEBOBJECT_DIR)/%.o)
OBJECT_DIRS = $(foreach dir,$(SRCDIRS), $(OBJECT_DIR)/$(dir))
WEBOBJECT_DIRS = $(foreach dir,$(SRCDIRS), $(WEBOBJECT_DIR)/$(dir))
DEPENDS 	= ${OBJECTS:.o=.d}


FMT_MESSAGE="\e[1;34m%s\e[0m %s %s %s\n"
default:
	@printf $(FMT_MESSAGE) "CXXFLAGS = " "$(CXXFLAGS)"
	@printf $(FMT_MESSAGE) "LDFLAGS = " "$(LDFLAGS)"
default: CXXFLAGS += -include pch.hpp
default: $(EXEC)

web: CXXFLAGS += $(WEBCXXFLAGS)
web: $(WEBEXEC)

webDebug: WEBLDFLAGS += -sASSERTIONS 
webDebug: CXXFLAGS += $(WEBCXXDEBUGFLAGS)
webDebug: web

webO0: CXXFLAGS += $(WEBCXXFLAGS) -O0
webO0: web
webO1: CXXFLAGS += $(WEBCXXFLAGS) -O1
webO1: web
webO2: CXXFLAGS += $(WEBCXXFLAGS) -O2
webO2: web
webO3: CXXFLAGS += $(WEBCXXFLAGS) -O3
webO3: web

webrun: CXXFLAGS += $(WEBCXXFLAGS)
webrun: $(WEBHTML)
	cd $(WEBOBJECT_DIR) && emrun $(WEBHTML)

.PHONY: release
release: CXXFLAGS += -O3
release: default

O0: CXXFLAGS += -O0
O0: default
O1: CXXFLAGS += -O1
O1: default
O2: CXXFLAGS += -O2
O2: default
O3: CXXFLAGS += -O3
O3: default

# rule for the executable
$(EXEC): $(OBJECT_DIRS) $(OBJECTS)
	$(CXX) $(OBJECTS) -o $@ $(CXXFLAGS) $(LDFLAGS) 

$(WEBHTML) $(WEBEXEC): $(WEBOBJECT_DIRS) $(WEBOBJECTS)
	$(WEBCXX) $(WEBOBJECTS) -o $@ $(CXXFLAGS) $(LDFLAGS) $(WEBLDFLAGS) 
# include the makefiles generated by the -M flag
-include $(DEPENDS)

# rule for all ../build/*.o files
$(OBJECT_DIR)/%.o: $(shell echo $<) %.cpp
	@printf $(FMT_MESSAGE) "Building:" $< "->" $@
	@$(CXX) -c $< -o $@ $(CXXFLAGS) $(LDFLAGS) 

$(WEBOBJECT_DIR)/%.o: $(shell echo $<) %.cpp
	@printf $(FMT_MESSAGE) "Building:" $< "->" $@
	@$(WEBCXX) -c $< -o $@ $(CXXFLAGS) $(LDFLAGS) 

$(OBJECT_DIRS) $(WEBOBJECT_DIRS):
	mkdir -p $@

#
# Extras Options
#
# with debug flags
.PHONY += debug run gdb pch clean docs

debug: CXXFLAGS += $(CXXDEBUGFLAGS)
debug: default

# make with debug flags and run afterwards
run: CXXFLAGS += $(CXXDEBUGFLAGS)
run: default
	-pwd; cd $(shell dirname $(EXEC)); pwd; ./$(shell basename $(EXEC))

# with debug flags and run gnu debugger
gdb: CXXFLAGS += -g
gdb: default
	gdb $(EXEC) -ex "layout src"

# build pch
pch:
	$(CXX) pch.hpp -std=c++23 -O3 -g $(IFLAGS)

# remove all object and dependecy files
clean:
	-rm -r $(OBJECT_DIR)
	-rm -r $(WEBOBJECT_DIR)
docs:
	doxygen .doxygen_config