CC           = clang
CXX          = clang++
AR           = ar
BUILD_TYPE   = debug
CSTD         = -std=gnu11
CXXSTD       = -std=gnu++11
CFLAGS       = -Wall -Wextra -Werror -pedantic -Isrc
LIBFLAGS     = -fPIC
KERNEL       = $(shell uname -s)
MACHINE      = $(shell uname -m)
PLATFORM     = $(KERNEL)_$(MACHINE)
TEST_INCLUDE = -Isrc $(shell find tests -type d | xargs -I{} echo -n "-I{} ")
TEST_SRC     = $(shell find tests -type f -name "*.c" | xargs -I{} echo -n "{} ")
TEST_C_SRC   = src/wapp.c $(TEST_SRC)
TEST_CXX_SRC = $(shell find tests -type f -name "*.cc" | xargs -I{} echo -n "{} ")
BUILD_DIR    = libwapp-build/$(PLATFORM)-$(BUILD_TYPE)
LIB_NAME     = wapp
OBJ_OUT      = $(BUILD_DIR)/$(LIB_NAME).o
LIB_OUT      = $(BUILD_DIR)/lib$(LIB_NAME).a
TEST_C_OUT   = $(BUILD_DIR)/wapptest
TEST_CXX_OUT = $(BUILD_DIR)/wapptestcc

ifeq ($(BUILD_TYPE),debug)
	CFLAGS += -g -fsanitize=address,undefined -DWAPP_DEBUG_ASSERT
else ifeq ($(BUILD_TYPE),release)
	CFLAGS += -O3
else
	$(error Invalid BUILD type '$(BUILD_TYPE)'. Use 'debug' or 'release')
endif

ifeq ($(CC),gcc)
  # Used to disable the "ASan runtime does not come first in initial library list" error when compiling with gcc
  export ASAN_OPTIONS=verify_asan_link_order=0
endif

.PHONY: all clean builddir build-test run-test codegen build-lib full prng testing uuid core primitives

all: clean builddir codegen run-c-test full run-cc-test

clean:
	@rm -rf $(BUILD_DIR)

builddir:
	@mkdir -p $(BUILD_DIR)

build-c-test:
	$(CC) $(CSTD) $(CFLAGS) $(TEST_INCLUDE) $(TEST_C_SRC) -o $(TEST_C_OUT)

run-c-test: build-c-test
	@echo -e "\n\033[34;1mRUNNING C TESTS\033[0m"
	@$(TEST_C_OUT)
	@rm $(TEST_C_OUT)

build-cc-test:
	$(CXX) $(CXXSTD) $(CFLAGS) $(TEST_INCLUDE) $(TEST_CXX_SRC) $(LIB_OUT) -o $(TEST_CXX_OUT)

run-cc-test: build-cc-test
	@echo -e "\n\033[34;1mRUNNING C++ TESTS\033[0m"
	@export LD_LIBRARY_PATH=$$LD_LIBRARY_PATH:$(BUILD_DIR) && $(TEST_CXX_OUT)
	@rm $(TEST_CXX_OUT)

codegen:
	python3 -m codegen

build-lib:
	$(CC) -c $(CSTD) $(CFLAGS) $(LIBFLAGS) $(LIB_SRC) -o $(OBJ_OUT)
	$(AR) r $(LIB_OUT) $(OBJ_OUT)
	@rm $(OBJ_OUT)

full: LIB_SRC = src/wapp.c
full: build-lib

prng: LIB_SRC = src/prng/wapp_prng.c
prng: build-lib

testing: LIB_SRC = src/testing/wapp_testing.c
testing: build-lib

uuid: LIB_SRC = src/uuid/wapp_uuid.c
uuid: build-lib

core: LIB_SRC = src/core/wapp_core.c
core: build-lib

primitives: LIB_SRC = src/core/wapp_primitives.c
primitives: build-lib