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include ../../buildenv.mk

PB_DIR = protobuf_code
LIBPB = $(PB_DIR)/final_tlibPB/build/libprotobuf.a
PROTOCPB = $(PB_DIR)/final_protocPB/build/protoc
INCLUDEPB = $(PB_DIR)/src/google/protobuf
ABSEIL_DIR = third_party/abseil-cpp
DEST_LIBRARY_NAME = libsgx_protobuf.a

PB_CONFIG = -DCMAKE_BUILD_TYPE=Release -DCMAKE_C_COMPILER_WORKS=TRUE -DCMAKE_CXX_COMPILER_WORKS=TRUE
ifdef DEBUG
	PB_CONFIG = -DCMAKE_BUILD_TYPE=Debug -DCMAKE_C_COMPILER_WORKS=TRUE -DCMAKE_CXX_COMPILER_WORKS=TRUE
	LIBPB = $(PB_DIR)/final_tlibPB/build/libprotobufd.a
endif
ENC_CXXFLAGS = $(patsubst -fpie, -fpic, $(ENCLAVE_CXXFLAGS))
PB_CONFIG += -DCMAKE_CXX_FLAGS="$(ENC_CXXFLAGS)"
PB_CONFIG += -DSGX_PROGRAM_SEARCH_PATH="$(EXT_BINUTILS_DIR)"

CHECK_SOURCE :=
ifeq ("$(wildcard $(PB_DIR)/src)", "")
CHECK_SOURCE := protobuf_code
endif

.PHONY: all
ifeq ($(BUILD_PROTOC), 1)
all: $(LIBPB) $(PROTOCPB) $(BUILD_DIR)
	make -f Makefile.archivelibrary
	$(CP) $(PB_DIR)/final_tlibPB/build/$(DEST_LIBRARY_NAME) $(BUILD_DIR)
	$(CP) $(PROTOCPB) $(BUILD_DIR)/sgx_protoc
else
all: $(LIBPB) $(BUILD_DIR)
	make -f Makefile.archivelibrary
	$(CP) $(PB_DIR)/final_tlibPB/build/$(DEST_LIBRARY_NAME) $(BUILD_DIR)

endif

$(BUILD_DIR):
	@$(MKDIR) $@

.PHONY: protobuf_code
protobuf_code:
ifeq ($(shell git rev-parse --is-inside-work-tree), true)
	$(RM) -r $(PB_DIR)/
	git submodule update -f --init $(PB_DIR)
else
	$(RM) -r $(PB_DIR)/
	git clone https://github.com/protocolbuffers/protobuf.git -b v23.2 --depth 1 $(PB_DIR)
endif


$(LIBPB): $(CHECK_SOURCE)
ifeq ("$(wildcard $(PB_DIR)/src/file_lists_for_sgx.cmake)", "")
	cd $(PB_DIR) && git apply ../sgx_protobuf.patch && git submodule update --init --recursive && cd $(ABSEIL_DIR) && git apply ../../../sgx_abseil.patch && cd ../../..
endif
	$(MKDIR) protobuf_code/final_tlibPB/build && cd protobuf_code/final_tlibPB/build && cmake $(PB_CONFIG) -Dprotobuf_BUILD_TESTS=FALSE -DSGX=TRUE ../../ -B . && make libprotobuf

ifeq ($(BUILD_PROTOC), 1)
$(PROTOCPB): $(CHECK_SOURCE)
	$(MKDIR) protobuf_code/final_protocPB/build && cd protobuf_code/final_protocPB/build && cmake -Dprotobuf_BUILD_TESTS=FALSE -DSGX=FALSE -DCMAKE_SKIP_RPATH=TRUE ../../ -B . && make protoc
endif

.PHONY: clean
clean:
	$(RM) -rf protobuf_code/final_tlibPB/build  protobuf_code/final_protocPB/build  $(BUILD_DIR)/libsgx_protobuf.a $(BUILD_DIR)/sgx_protoc
	

.PHONY: rebuild
rebuild:
	 $(MAKE) clean
	 $(MAKE) all


