TARGET := build/version.dll
BUILD_DIR := build
OBJ_DIR := $(BUILD_DIR)/obj
BUILD ?= release

CC := x86_64-w64-mingw32-gcc
CXX := x86_64-w64-mingw32-g++
WINDRES := x86_64-w64-mingw32-windres

INCLUDES := -Isrc -Ideps/minhook/include -Ideps/minhook/src -Ideps/minhook/src/hde
DEFINES := -DNOMINMAX -DWIN32_LEAN_AND_MEAN
CFLAGS := -std=gnu11 $(DEFINES) $(INCLUDES)
CXXFLAGS := -std=gnu++20 -fno-exceptions -fno-rtti $(DEFINES) $(INCLUDES)
LDFLAGS := -shared -static-libgcc -static-libstdc++
LDLIBS := -luser32 -lkernel32

ifeq ($(BUILD),debug)
  DEFINES += -D_DEBUG
  CFLAGS += -O0 -g
  CXXFLAGS += -O0 -g
else
  CFLAGS += -O2 -ffunction-sections -fdata-sections
  CXXFLAGS += -O2 -ffunction-sections -fdata-sections
  LDFLAGS += -Wl,--gc-sections -s
endif

C_SRCS := \
	deps/minhook/src/buffer.c \
	deps/minhook/src/hook.c \
	deps/minhook/src/trampoline.c \
	deps/minhook/src/hde/hde64.c

CXX_SRCS := \
	src/proxy.cpp \
	src/hook.cpp \
	src/log.cpp \
	src/il2cpp_symbols.cpp

RC_SRCS := src/version.rc
DEF_FILE := src/version.def

C_OBJS := $(patsubst %.c,$(OBJ_DIR)/%.o,$(C_SRCS))
CXX_OBJS := $(patsubst %.cpp,$(OBJ_DIR)/%.o,$(CXX_SRCS))
RC_OBJS := $(patsubst %.rc,$(OBJ_DIR)/%.res,$(RC_SRCS))
OBJS := $(C_OBJS) $(CXX_OBJS) $(RC_OBJS)

.PHONY: all release debug clean

all: $(TARGET)
release: $(TARGET)
debug:
	$(MAKE) BUILD=debug

$(TARGET): $(OBJS) $(DEF_FILE)
	@mkdir -p $(dir $@)
	$(CXX) $(LDFLAGS) -o $@ $(OBJS) $(DEF_FILE) $(LDLIBS)

$(OBJ_DIR)/%.o: %.c
	@mkdir -p $(dir $@)
	$(CC) $(CFLAGS) -c $< -o $@

$(OBJ_DIR)/%.o: %.cpp
	@mkdir -p $(dir $@)
	$(CXX) $(CXXFLAGS) -c $< -o $@

$(OBJ_DIR)/%.res: %.rc
	@mkdir -p $(dir $@)
	$(WINDRES) $(DEFINES) $(INCLUDES) $< -O coff -o $@

clean:
	rm -rf $(BUILD_DIR)