#         /\         +--------------------------------------------------------------+ 
#    ____/  \____   /| - zlib/MIT/Unlicenced game framework licensed to freely use, |
#    \          /  / |   copy, modify and sell without restriction                  |
#  +--\ ^__^   /--+  |                                                              |
#  | ~/        \~ |  | - originally created at [http://nugget.fun]                  |
#  | ~~~~~~~~~~~~ |  +--------------------------------------------------------------+
#  | SPACE ~~~~~  | /                                                                              
#  |  ~~~~~~~ BOX |/                                                                               
#  +--------------+                                                                             
# 
#  [ Makefile for cube demo ]
#
#  This should build the cube demo for Linux. Other platforms haven't been tested in
#  a while and won't work without significant editing.
#
#  Edit the parameters as necessary and run `make linux` in the current directory.
#

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

# Location of source files for the demo
SRC_DIR := ./

# 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 := ../../
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_LINUX := clang
CPPC_LINUX := clang++

# Location of SDL config program
SDLCONFIG := ~/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 #
#############################

CFLAGS := -Wall -O0 -c -I$(SB_LIB_DIR) -I$(SB_SRC_DIR) -g $(shell $(SDLCONFIG) --cflags)
CPP_FLAGS := $(CFLAGS) --std=c++17
LFLAGS := $(shell $(SDLCONFIG) --libs) -lpthread
SFW_H_FILES := $(wildcard $(addprefix $(SB_SRC_DIR),*.hpp))
SFW_O_FILES := $(filter-out $(addprefix $(SB_SRC_DIR),filesystem.o),$(SFW_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 demo source #
##################################################################

$(SDLGFX2_DIR)%.o: $(SDLGFX2_DIR)%.c $(SDLGFX2_DIR)%.h
$(GLEW_DIR)%.o: $(GLEW_DIR)%.c $(GLEW_DIR)%.h
	$(CC_LINUX) $(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)Cube.o : $(SFW_H_FILES)
%.o : %.cpp %.hpp
	$(CPPC_LINUX) $(CPP_FLAGS) $< -c -o $@

##########################
# Target for Linux build #
##########################

linux : $(GLEW_DIR)glew.o $(addprefix $(SDLGFX2_DIR),SDL2_rotozoom.o SDL2_gfxPrimitives.o) \
	$(SRC_O_FILES) $(SFW_O_FILES)
	$(CREATE_FONT_SYMLINK)
	$(CPPC_LINUX) $(LFLAGS) -D__LINUX__ $^ -lGL -lSDL2_image -lSDL2_ttf -lSDL2_mixer -lstdc++fs -o cube

#######################################
# Target for cleaning up object files #
#######################################

clean :
	- rm *.o
	- rm $(SB_SRC_DIR)*.o
	- rm $(GLEW_DIR)*.o
	- rm $(SDLGFX2_DIR)*.o

#
# These assignments 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.
#

export ANDROID_HOME = /home/frank/ext/software/android-sdk
export ANDROID_NDK_HOME = /home/frank/ext/software/android-ndk-r8d
BUILDDIR := build
ANDROIDPROJECT := com.nuggetsselect.demo
SOFTWARE_ROOT := /home/frank/ext/software
SDLHOME := $(SOFTWARE_ROOT)/SDL2-2.0.14
SDL_IMG_HOME := $(SOFTWARE_ROOT)/SDL2_image-2.0.5
SDL_TTF_HOME := $(SOFTWARE_ROOT)/SDL2_ttf-2.0.15
GLEW_WIN32_HOME := $(SOFTWARE_ROOT)/glew-2.1.0-win32
PROJECTHOME := $(shell pwd)
EMSCRIPTENHOME := /home/frank/ext/software/emsdk/emscripten/tag-1.38.12
SDLEMLIBSHOME := $(SDLHOME)/build/em/build/.libs
EMBUILDDIR := em
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

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

emscripten :
	if [ ! -d $(BUILDDIR)/$(EMBUILDDIR) ]; then mkdir -p $(BUILDDIR)/$(EMBUILDDIR); fi;
	cd $(BUILDDIR)/$(EMBUILDDIR) && \
	$(EMSCRIPTENHOME)/em++ -O2 $(PROJECTHOME)/main.cpp -I$(SDLHOME)/include \
	-Wall -s USE_SDL=2 -o main.html

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