#       _______________
#      //`````````````\\
#     //~~~~~~~~~~~~~~~\\       + a game by @ohsqueezy (ohsqueezy.itch.io) & @sleepin (instagram.com/sleepin)
#    //=================\\      + code is licensed for copy, modification and redistribution (git.nugget.fun/pudding)
#   //                   \\
#  //-G--U--N--K--I--S--S-\\    😀 Thank you for choosing Puddendo for your business 😀
# //_______________________\\
# ```````````````````````````
#
# This Makefile should build a Linux binary from `make linux`. Other platform targets have not been tested yet.

#######################
# Location parameters #
#######################

# Location of project specific source files
SRC_DIR := src/

# Locations of [SPACE BOX] source and dependencies required to be compiled from source. These
# locations are configured to match the structure of the [SPACE BOX] repository but can be
# modified as necessary.
SB_DIR := lib/sb/
SB_SRC_DIR := $(SB_DIR)src/
SB_LIB_DIR := $(SB_DIR)lib/
SDLGFX2_DIR := $(SB_LIB_DIR)sdl2-gfx/
GLEW_DIR := $(SB_LIB_DIR)glew/

# C and C++ compiler commands
CC := clang
CPPC := clang++

# Location of SDL config program
SDLCONFIG := $(HOME)/local/sdl/bin/sdl2-config

# Edit to point to the location of BPmono.ttf
CREATE_FONT_SYMLINK := ln -nsf $(SB_DIR)"BPmono.ttf" .

#############################
# Based on above parameters #
#############################

SDL_CFLAGS = $(shell $(SDLCONFIG) --cflags)
SDL_LFLAGS := $(shell $(SDLCONFIG) --libs)
SB_H_FILES := $(wildcard $(addprefix $(SB_SRC_DIR),*.hpp))
SB_O_FILES := $(filter-out $(addprefix $(SB_SRC_DIR),filesystem.o),$(SB_H_FILES:.hpp=.o))
SRC_H_FILES := $(wildcard $(addprefix $(SRC_DIR),*.hpp))
SRC_O_FILES := $(SRC_H_FILES:.hpp=.o)

#####################################################################
# Targets for building [SPACE BOX], dependencies and project source #
#####################################################################

$(SDLGFX2_DIR)%.o: $(SDLGFX2_DIR)%.c $(SDLGFX2_DIR)%.h
$(GLEW_DIR)%.o: $(GLEW_DIR)%.c $(GLEW_DIR)%.h
	$(CC) $(CFLAGS) $< -c -o $@

$(SB_SRC_DIR)extension.o : $(addprefix $(SB_SRC_DIR),Box.hpp Segment.hpp Color.hpp filesystem.hpp Pixels.hpp)
$(SB_SRC_DIR)Node.o : $(addprefix $(SB_SRC_DIR),Game.hpp Configuration.hpp Delegate.hpp Display.hpp Input.hpp Box.hpp Audio.hpp)
$(SB_SRC_DIR)Sprite.o : $(addprefix $(SB_SRC_DIR),Node.hpp Game.hpp Box.hpp Animation.hpp Color.hpp extension.hpp Pixels.hpp)
$(SB_SRC_DIR)Game.o : $(addprefix $(SB_SRC_DIR),extension.hpp Node.hpp Sprite.hpp Recorder.hpp Input.hpp Configuration.hpp \
	Delegate.hpp Audio.hpp)
$(SB_SRC_DIR)Animation.o : $(addprefix $(SB_SRC_DIR),Node.hpp Timer.hpp)
$(SB_SRC_DIR)Recorder.o : $(addprefix $(SB_SRC_DIR),Node.hpp Game.hpp Configuration.hpp Delegate.hpp Animation.hpp extension.hpp)
$(SB_SRC_DIR)Input.o : $(addprefix $(SB_SRC_DIR),Node.hpp Animation.hpp Configuration.hpp Delegate.hpp)
$(SB_SRC_DIR)Configuration.o : $(addprefix $(SB_SRC_DIR),Node.hpp Animation.hpp)
$(SB_SRC_DIR)Delegate.o : $(addprefix $(SB_SRC_DIR),Node.hpp Game.hpp Input.hpp)
$(SB_SRC_DIR)Display.o : $(addprefix $(SB_SRC_DIR),Node.hpp Game.hpp Box.hpp Configuration.hpp Delegate.hpp)
$(SB_SRC_DIR)Box.o : $(addprefix $(SB_SRC_DIR),extension.hpp Segment.hpp)
$(SB_SRC_DIR)Segment.o : $(addprefix $(SB_SRC_DIR),extension.hpp Box.hpp)
$(SB_SRC_DIR)Pixels.o : $(addprefix $(SB_SRC_DIR),Box.hpp extension.hpp)
$(SB_SRC_DIR)Audio.o : $(addprefix $(SB_SRC_DIR),Node.hpp Display.hpp Configuration.hpp Box.hpp filesystem.hpp extension.hpp)
$(SRC_DIR)Pudding.o : $(SRC_H_FILES) $(SB_H_FILES)
%.o : %.cpp %.hpp
	$(CPPC) $(CPP_FLAGS) $< -c -o $@

###############
# Linux build #
###############

linux :	CC = clang
linux :	CPPC = clang++
linux :	CFLAGS = -g -Wall -Wextra -Og -c -I$(SB_LIB_DIR) -I$(SB_SRC_DIR) $(SDL_CFLAGS) -I$(HOME)/local/zbar/include \
	-I$(HOME)/local/opencv/include/opencv4
linux :	CPP_FLAGS = $(CFLAGS) --std=c++17
linux :	LFLAGS = $(SDL_LFLAGS) -lpthread -lGL -lGLESv2 -lSDL2_image -lSDL2_ttf -lSDL2_mixer -lcurl -lstdc++fs \
	-L/home/frank/local/opencv/lib -Wl,-rpath,/home/frank/local/opencv/lib -Wl,--enable-new-dtags -lopencv_videoio -lopencv_core \
	-lopencv_highgui -lopencv_imgproc -L/home/frank/local/zbar/lib -Wl,-rpath,/home/frank/local/zbar/lib -Wl,--enable-new-dtags -lzbar
linux : $(GLEW_DIR)glew.o $(addprefix $(SDLGFX2_DIR),SDL2_rotozoom.o SDL2_gfxPrimitives.o) \
	$(SB_O_FILES) $(SRC_O_FILES)
	$(CREATE_FONT_SYMLINK)
	$(CPPC) $(LFLAGS) -D__LINUX__ $^ -o pudding

#########################
# Clean up object files #
#########################

.PHONY : clean
clean :
	-rm $(SRC_DIR)*.o

.PHONY : clean-all
clean-all :
	-find . -iname "*.o" -exec rm {} \;

#
# Below assignments and targets are necessary for cross-compiling to Android, web (via emscripten), Windows (via mingw),
# and OS/X. Cross-compilation targets have not been tested in a while and won't compile without significant changes.
#

BUILDDIR := build
EXT_SRC_ROOT := /home/frank/ext/software
SDLHOME := $(EXT_SRC_ROOT)/SDL2-2.0.14
SDL_IMG_HOME := $(EXT_SRC_ROOT)/SDL2_image-2.0.4
SDL_TTF_HOME := $(EXT_SRC_ROOT)/SDL2_ttf-2.0.14
GLEW_WIN32_HOME = $(EXT_SRC_ROOT)/glew-2.1.0-win32
PROJECTHOME = $(shell pwd)
EMSCRIPTENHOME = $(EXT_SRC_ROOT)/emsdk/upstream/emscripten
WINBUILDDIR = win
SDLMINGWHOME = $(SDLHOME)/i686-w64-mingw32
SDL_IMG_MINGW_HOME = $(SDL_IMG_HOME)/i686-w64-mingw32
SDL_TTF_MINGW_HOME = $(SDL_TTF_HOME)/i686-w64-mingw32
APPDIR = Main.app/Contents
SYSFWPATH = /Library/Frameworks
EMSCRIPTEN_CFLAGS = -O3 -Wall -s USE_SDL=2 -s USE_SDL_IMAGE=2 -s SDL2_IMAGE_FORMATS="['png']" \
	-s USE_SDL_TTF=2 -s USE_SDL_MIXER=2 -s MAX_WEBGL_VERSION=1 -s EXTRA_EXPORTED_RUNTIME_METHODS="['ccall']" \
	-s EXPORTED_FUNCTIONS="['_main', '_reset_game']" -s ALLOW_MEMORY_GROWTH=1 -s GL_PREINITIALIZED_CONTEXT=1 \
	-s ENVIRONMENT=web --shell-file shell_minimal.html --no-heap-copy -I$(SFW_LIB_DIR) -I$(SFW_SRC_DIR)
EMSCRIPTEN_PRELOADS = --preload-file "BPmono.ttf"@/ --preload-file "config.json" --preload-file "resource"

emscripten : CC = $(EMSCRIPTENHOME)/emcc
emscripten : CPPC = $(EMSCRIPTENHOME)/em++
emscripten : CFLAGS = $(EMSCRIPTEN_CFLAGS)
emscripten : CPP_FLAGS = $(CFLAGS) --std=c++17
emscripten : $(addprefix $(SDLGFX2_DIR),SDL2_rotozoom.o SDL2_gfxPrimitives.o) $(SFW_O_FILES) $(GAME_O_FILES)
	$(CREATE_FONT_SYMLINK)
	$(CPPC) $(CPP_FLAGS) $(EMSCRIPTEN_PRELOADS) $^ -o "index.html"

android :
	if [ ! -d $(BUILDDIR) ]; then mkdir $(BUILDDIR); fi;
	cd $(SDLHOME)/build-scripts/ && \
	./androidbuild.sh $(ANDROIDPROJECT) $(PROJECTHOME)/main.cpp
	cp -r $(SDLHOME)/build/$(ANDROIDPROJECT) $(BUILDDIR)
	sed -i s/2\.3\.3/2\.2\.3/g $(BUILDDIR)/$(ANDROIDPROJECT)/build.gradle
	sed -i s/26\.0\.1/23\.0\.1/g $(BUILDDIR)/$(ANDROIDPROJECT)/app/build.gradle
	cd $(BUILDDIR)/$(ANDROIDPROJECT) && ./gradlew assembleDebug

mingw :
	if [ ! -d $(BUILDDIR)/$(WINBUILDDIR) ]; then mkdir -p $(BUILDDIR)/$(WINBUILDDIR); fi;
	cd $(BUILDDIR)/$(WINBUILDDIR) && \
	i686-w64-mingw32-g++ -std=c++17 $(PROJECTHOME)/main.cpp -I$(SDLMINGWHOME)/include/SDL2 \
	-I$(SDL_IMG_MINGW_HOME)/include/SDL2 -I$(SDL_TTF_MINGW_HOME)/include/SDL2 $(INC) \
	$(PROJECTHOME)/sdl2-gfx/SDL2_gfxPrimitives.c $(PROJECTHOME)/sdl2-gfx/SDL2_rotozoom.c $(PROJECTHOME)/glew/glew.c \
	-L$(SDLMINGWHOME)/lib -L$(SDL_IMG_MINGW_HOME)/lib -L$(SDL_TTF_MINGW_HOME)/lib \
	-lmingw32 -lSDL2_image \
	-lSDL2_ttf -lstdc++fs \
	-lSDL2main -lSDL2 -lopengl32 -Wall -O2 -o main.exe && \
	cp $(SDLMINGWHOME)/bin/SDL2.dll $(SDL_IMG_MINGW_HOME)/bin/SDL2_image.dll \
	$(SDL_TTF_MINGW_HOME)/bin/SDL2_ttf.dll .

osx :
	g++ -I $(SYSFWPATH)/SDL2.framework/Headers $(INC) \
	-I $(SYSFWPATH)/SDL2_image.framework/Headers -Wl,-rpath,$(SYSFWPATH) \
	-framework SDL2 -framework SDL2_image -framework OpenGL main.cpp sdl2-gfx/SDL2_rotozoom.c \
	-o main

osx-bundle :
	if [ ! -d "$(APPDIR)" ]; then mkdir -p $(APPDIR); fi;
	if [ ! -d "$(APPDIR)" ]; then mkdir $(APPDIR); fi;
	if [ ! -d "$(APPDIR)/MacOS" ]; then mkdir $(APPDIR)/MacOS; fi;
	if [ ! -d "$(APPDIR)/Frameworks" ]; then mkdir $(APPDIR)/Frameworks; fi;
	if [ ! -d "$(APPDIR)/Resources" ]; then mkdir $(APPDIR)/Resources; fi;
	touch $(APPDIR)/Info.plist
	cp -r $(SYSFWPATH)/SDL2.framework $(APPDIR)/Frameworks
	cp -r $(SYSFWPATH)/SDL2_image.framework $(APPDIR)/Frameworks
	g++ -I $(SYSFWPATH)/SDL2.framework/Headers -I $(SYSFWPATH)/SDL2_image.framework/Headers \
	-Wl,-rpath,@executable_path/../Frameworks -Wl,-rpath,$(SYSFWPATH) \
	-framework SDL2 -framework SDL2_image -framework OpenGL main.cpp -o $(APPDIR)/MacOS/main

cross : linux android emscripten mingw