# Project setup
BUILD_PROFILE?=
BUILD_DIR = target/$(BUILD_PROFILE)
OBJ_DIR = artifacts
SRC_DIR ?= ./src
INC_DIR = ./include
INC_SUB_NAME = opensmarts
INC_SUB_DIR = $(INC_DIR)/$(INC_SUB_NAME)
PROJECT_NAME = libopensmarts
PROJECT_TYPE = lib
SHARED=1

# Objects
NAMES = $(basename $(notdir $(wildcard $(SRC_DIR)/*.c)))
HEADS = $(addprefix $(INC_SUB_DIR)/, $(notdir $(wildcard $(INC_SUB_DIR)/*.h)))
SRCS = $(addsuffix .c, $(NAMES))
OBJS = $(addsuffix .o, $(NAMES))


# C compiler
CC ?= gcc

# Setup C flags
CC_FLAGS_all ?= -std=c23 -Wextra -Wall -I$(INC_DIR)

CC_FLAGS ?= -O2 -DNDEBUG
CC_FLAGS += $(CC_FLAGS_all)
CC_FLAGS_debug ?= -ggdb
CC_FLAGS_debug += $(CC_FLAGS_all)

ifeq ($(BUILD_PROFILE),debug)
	CC_FLAGS=$(CC_FLAGS_debug)
endif

# Detect target 
BUILD_FLAGS=$(CC_FLAGS)
BUILD_TOOL=$(CC)
BUILD_FILE_TYPE=
ifeq ($(OS),Windows_NT)
	ifeq ($(PROJECT_TYPE),lib)
		BUILD_FLAGS+=-shared
		BUILD_FILE_TYPE=.dll
	else
		BUILD_FILE_TYPE=.exe
	endif
else
	ifeq ($(PROJECT_TYPE),lib)
		ifeq ($(SHARED),1)
			BUILD_FLAGS+=-shared
			BUILD_FILE_TYPE=.so
			CC_FLAGS += -fpic
		else
			BUILD_TOOL=ar
			BUILD_FLAGS=-crs
			BUILD_FILE_TYPE=.a
		endif
	endif
endif

# Actual makefile targets

build: $(BUILD_DIR) $(addprefix $(BUILD_DIR)/$(OBJ_DIR)/, $(OBJS))
	echo $(NAMES)
	$(BUILD_TOOL) $(BUILD_FLAGS) -o $(BUILD_DIR)/$(PROJECT_NAME)$(BUILD_FILE_TYPE) $(addprefix $(BUILD_DIR)/$(OBJ_DIR)/, $(OBJS))

clean:
	rm -rf $(BUILD_DIR)

install: build
	install -m 755 $(BUILD_DIR)/$(PROJECT_NAME)$(BUILD_FILE_TYPE) /usr/lib/$(BUILD_PREFIX)$(PROJECT_NAME)$(BUILD_FILE_TYPE)
	cp -rf $(INC_SUB_DIR) /usr/include

remove:
	rm -rf /usr/include/$(INC_SUB_NAME)
	rm -rf /usr/lib/$(PROJECT_NAME)$(BUILD_FILE_TYPE)

$(BUILD_DIR)/$(OBJ_DIR)/%.o: $(SRC_DIR)/%.c $(HEADS)
	$(CC) $(CC_FLAGS) -c -o $@ $<

$(BUILD_DIR):
	mkdir -p $(BUILD_DIR)
	mkdir -p $(BUILD_DIR)/$(OBJ_DIR)

format:
	echo $(addprefix $(SRC_DIR)/, $(SRCS)) $(HEADS) | xargs clang-format --style=file -i