#######################################################################
##
## Auto detect Operating System
##
#######################################################################

ifneq "" "$(findstring -linux-,$(MAKE_HOST))"
	OS=linux
else ifneq "" "$(VSINSTALLDIR)"
	OS=visual
else ifneq "" "$(findstring cmd.exe,$(COMSPEC))"
	OS=mingw
endif

ifeq "$(OS)" ""
  $(error Cannot figure out which OS to build for."
endif
$(info Building for $(OS)...)


#######################################################################
##
## List of all OBJ files
##
#######################################################################

OBJ_ERIS=\
	obj/eris/lapi.obj \
	obj/eris/lcode.obj \
	obj/eris/lctype.obj \
	obj/eris/ldebug.obj \
	obj/eris/ldo.obj \
	obj/eris/ldump.obj \
	obj/eris/lfunc.obj \
	obj/eris/lgc.obj \
	obj/eris/llex.obj \
	obj/eris/lmem.obj \
	obj/eris/lobject.obj \
	obj/eris/lopcodes.obj \
	obj/eris/lparser.obj \
	obj/eris/lstate.obj \
	obj/eris/lstring.obj \
	obj/eris/ltable.obj \
	obj/eris/ltm.obj \
	obj/eris/lundump.obj \
	obj/eris/lvm.obj \
	obj/eris/lzio.obj \
	obj/eris/lauxlib.obj \
	obj/eris/lbaselib.obj \
	obj/eris/lbitlib.obj \
	obj/eris/lcorolib.obj \
	obj/eris/ldblib.obj \
	obj/eris/liolib.obj \
	obj/eris/lmathlib.obj \
	obj/eris/loslib.obj \
	obj/eris/lstrlib.obj \
	obj/eris/ltablib.obj \
	obj/eris/loadlib.obj \
	obj/eris/linit.obj \
	obj/eris/eris.obj \

OBJ_CORE=\
	obj/core/invocation.obj\
	obj/core/spookyv2.obj\
	obj/core/eng-malloc.obj\
	obj/core/debugcollector.obj\
	obj/core/drivenengine.obj\
	obj/core/util.obj\
	obj/core/luastack.obj\
	obj/core/traceback.obj\
	obj/core/planemap.obj\
	obj/core/pprint.obj\
	obj/core/luaconsole.obj\
	obj/core/idalloc.obj\
	obj/core/globaldb.obj\
	obj/core/sched.obj\
	obj/core/http.obj\
	obj/core/json.obj\
	obj/core/table.obj\
	obj/core/gui.obj\
	obj/core/luasnap.obj\
	obj/core/animqueue.obj\
	obj/core/streambuffer.obj\
	obj/core/source.obj\
	obj/core/world-core.obj\
	obj/core/world-accessor.obj\
	obj/core/world-difftab.obj\
	obj/core/world-diffxmit.obj\
	obj/core/world-pairtab.obj\
	obj/core/world-testing.obj\
	obj/core/textgame.obj\
	obj/core/lpxserver.obj\
	obj/core/lpxclient.obj\
	obj/core/eng-tests.obj\
	obj/core/printbuffer.obj\
	obj/core/serializelua.obj\


OBJ_DRV=\
	obj/drv/drvutil.obj\
	obj/drv/sslutil.obj\


#######################################################################
##
## Make rules for linux
##
#######################################################################


ifeq "$(OS)" "linux"

OPT=-g -O0
GPP=g++ -Wall -fvisibility=hidden $(OPT) -std=c++17 -MMD

luprex: $(OBJ_DRV) driver-linux.o luprexlib.so
	$(GPP) -o $@ $(OBJ_DRV) driver-linux.o -L./ext/openssl-linux -lssl -lcrypto -ldl

luprexlib.so: $(OBJ_ERIS) $(OBJ_CORE)
	$(GPP) -export-dynamic -Wl,--no-allow-shlib-undefined -Wl,-z,defs -shared-o $@ $^

obj/eris/%.obj: ext/eris-master/src/%.c
	$(GPP) -fPIC -DLUA_USE_APICHECK -DLUA_USE_POSIX -o $@ -c $<

obj/core/%.obj: cpp/core/%.cpp
	$(GPP) -fPIC -I./ext/eris-master/src -I./cpp/wrap -I./cpp/core -o $@ -c $<

obj/drv/%.obj: cpp/drv/%.cpp
	$(GPP) -I./ext -I./src/drv -o $@ -c $<

endif


#######################################################################
##
## Make rules for mingw
##
#######################################################################

ifeq "$(OS)" "mingw"

OPT=-g -O0
GPP=g++ -Wall -fvisibility=hidden $(OPT) -std=c++17 -MMD

luprex.exe: $(OBJ_DRV) driver-windows.o luprexlib.dll
	$(GPP) -o $@ $(OBJ_DRV) driver-windows.o -L./ext/openssl-mingw -lssl -lcrypto -lws2_32 -lcrypt32 -lcryptui
	ext/cv2pdb.exe luprex.exe

luprexlib.dll: $(OBJ_ERIS) $(OBJ_CORE)
	$(GPP) -Wl,--no-allow-shlib-undefined -shared -o $@ $^
	ext/cv2pdb.exe luprexlib.dll

obj/eris/%.obj: ext/eris-master/src/%.c
	$(GPP) -fPIC -DLUA_USE_APICHECK -DLUA_COMPAT_ALL -o $@ -c $<

obj/core/%.obj: cpp/core/%.cpp
	$(GPP) -fPIC -I./ext/eris-master/src -I./cpp/wrap -I./cpp/core -o $@ -c $<

obj/drv/%.obj: cpp/drv/%.cpp
	$(GPP) -I./ext -I./src/drv -o $@ -c $<

endif


#######################################################################
##
## Make rules for visual
##
#######################################################################

ifeq "$(OS)" "visual"

ifeq "" "$(VSINSTALLDIR)"
	$(error You must use vcvars64.bat to set up the visual studio environment variables)
endif

OPT=/Od /Zi
MMD=g++ -Wall -std=c++17 -MMD -E
CL=CL $(OPT) /std:c++17 /EHsc /nologo /MD /TP /c
LINK=CL $(OPT) /std:c++17 /EHsc /nologo
OBJ_OS=obj/drv/driver-windows.obj
LIB_SSL=ext/openssl-3.1.0/lib/visual/libcrypto.lib ext/openssl-3.1.0/lib/visual/libssl.lib
LIB_WIN=ws2_32.lib crypt32.lib cryptui.lib user32.lib advapi32.lib

all: luprex.exe luprexlib.dll luprexstatic.exe

luprex.exe: luprexlib.dll $(OBJ_DRV) $(OBJ_OS)
	$(LINK) /Fe: $@ $(OBJ_DRV) $(OBJ_OS) $(LIB_SSL) $(LIB_WIN) 

luprexlib.dll: $(OBJ_ERIS) $(OBJ_CORE)
	$(LINK) /LDd /Fe: $@ $^

luprexstatic.exe: $(OBJ_DRV) $(OBJ_OS) $(OBJ_ERIS) $(OBJ_CORE)
	$(LINK) /Fe: $@ $(OBJ_DRV) $(OBJ_OS) $(OBJ_ERIS) $(OBJ_CORE) $(LIB_SSL) $(LIB_WIN)

obj/eris/%.obj: ext/eris-master/src/%.c
	$(MMD) -DLUA_USE_APICHECK -DLUA_COMPAT_ALL -o $@d $<
	$(CL) /DLUA_USE_APICHECK /DLUA_COMPAT_ALL /Fo: $@ $<

obj/core/%.obj: cpp/core/%.cpp
	$(MMD) -I./ext/eris-master/src -I./cpp/wrap -I./cpp/core -o $@d $<
	$(CL) /I./ext/eris-master/src /I./cpp\wrap /I./cpp/core /Fo: $@ $<

obj/drv/%.obj: cpp/drv/%.cpp
	$(MMD) -I./ext/openssl-3.1.0/inc -I./src/drv -o $@d $<
	$(CL) /I./ext/openssl-3.1.0/inc -I./src/drv /Fo: $@ $<

endif


#######################################################################
##
## Make Clean, deliberately OS independent
##
#######################################################################

clean:
	rm -f luprex luprex.exe luprexlib.so luprexlib.dll luprexstatic luprexstatic.exe *.ilk *.exp *.pdb obj/core/*.* obj/drv/*.* obj/eris/*.*


#######################################################################
##
## Automatically generated Make Dependencies
##
#######################################################################

-include $(OBJ_ERIS:%.obj=%.d)
-include $(OBJ_CORE:%.obj=%.d)
-include $(OBJ_DRV:%.obj=%.d)