LOCAL := $(filter 1,$(LOCAL))
DEBUG := $(filter 1,$(DEBUG))

LOCAL_PREFIX ?= $(HOME)/.luarocks
ifeq ($(LOCAL), 1)
PREFIX ?= $(LOCAL_PREFIX)
else
PREFIX ?= /usr/local
endif

VOLK_ROOT = ext/volksdata
VOLK_LIBDIR = $(VOLK_ROOT)/build

INCLUDE = -I$(PREFIX)/include
VOLK_INCLUDE = -I$(VOLK_ROOT)/include
CFLAGS = -shared -Wall -Wextra -fPIC
ifeq ($(DEBUG), 1)
CFLAGS += -DDEBUG -Og -ggdb
else
CFLAGS += -DNDEBUG -O3 -g0
endif

LDFLAGS = -L$(PREFIX)/lib -L$(VOLK_LIBDIR) -llua -llmdb -lxxhash -luuid

LUAC_SRC = $(wildcard src/*.c)
#OBJ = $(patsubst src/%.c, lib/%.so, $(LUAC_SRC))
OBJ = lua_volksdata.so
OBJPATH = lib/$(OBJ)

ifeq ($(DEBUG), 1)
VOLK_LIB = $(VOLK_LIBDIR)/libvolksdata_dbg.a
else
VOLK_LIB = $(VOLK_LIBDIR)/libvolksdata.a
endif

LUA_VER=5.4
INSTALL_SUFFIX=lib/lua/$(LUA_VER)
INSTALL_DIR=$(PREFIX)/$(INSTALL_SUFFIX)
LOCAL_INSTALL_DIR=$(shell luarocks config home_tree)/$(INSTALL_SUFFIX)

VALGRIND_LOG=/tmp/lua_volksdata_valgrind.log

.DEFAULT_GOAL := lib


.PHONY: lib
lib: $(VOLK_LIB) $(OBJPATH)

$(VOLK_LIB):
	$(MAKE) -C $(VOLK_ROOT) lib LOCAL=1 DEBUG=$(DEBUG) LOCAL_PREFIX=$(VOLK_ROOT)

$(OBJPATH): src/*.c src/lua_volksdata.h
	$(CC) $(INCLUDE) $(CFLAGS) $(LDFLAGS) -o $@ src/*.c $(VOLK_LIB)


install: lib
	mkdir -p $(INSTALL_DIR)
	cp $(OBJPATH) $(INSTALL_DIR)/volksdata.so


.PHONY: uninstall
uninstall:
	$(RM) $(INSTALL_DIR)/$(OBJ)


.PHONY: clean
clean:
	$(RM) lib/*.so


.PHONY: depclean
depclean:
	$(MAKE) -C $(VOLK_ROOT) clean LOCAL=1 LOCAL_PREFIX=.


.PHONY: memcheck
memcheck:
	valgrind --leak-check=full --show-leak-kinds=all --track-origins=yes \
	--log-fd=9 --suppressions=valgrind-lua-noreadline.supp \
	lua -e "dofile 'scratch.lua'" 9>|$(VALGRIND_LOG); \
	echo "Log file in $(VALGRIND_LOG)"