# Variables
CC = clang
CFLAGS = -Wall -Wextra -Werror -O3
LDFLAGS = -lSDL2 -flto
LIBFT_DIR = libs/libft
LIBFT_BUILD_DIR = $(LIBFT_DIR)/build
LIBFT_LIB = $(LIBFT_BUILD_DIR)/libft.a
SRC_DIR = srcs
OBJ_DIR = obj
BIN_DIR = bin
HDR_DIR = hdrs
SRCS = $(wildcard $(SRC_DIR)/*.c)   # List all .c files in srcs directory
OBJS = $(SRCS:$(SRC_DIR)/%.c=$(OBJ_DIR)/%.o)  # Convert .c to .o in obj directory
EXEC = $(BIN_DIR)/c8         # The output binary name

# Default target
all: $(EXEC)

# Create bin and obj directories if they don't exist
$(OBJ_DIR) $(BIN_DIR):
	@mkdir -p $@

# Compile .c files to .o object files
$(OBJ_DIR)/%.o: $(SRC_DIR)/%.c $(HDR_DIR)/*.h | $(OBJ_DIR)
	$(CC) $(CFLAGS) -I$(HDR_DIR) -I$(LIBFT_DIR)/hdrs -c $< -o $@

# Build libft.a by running make in libs/libft
$(LIBFT_LIB):
	@echo "Building libft..."
	$(MAKE) -C $(LIBFT_DIR)

# Link object files and libft.a to create the final executable
$(EXEC): $(OBJS) $(LIBFT_LIB) | $(BIN_DIR)
	$(CC) $(OBJS) -o $(EXEC) $(LIBFT_LIB) $(LDFLAGS)

# Clean up object files and the executable
clean:
	rm -rf $(OBJ_DIR)/*.o $(EXEC)

# Remove all generated files including bin and obj directories
fclean: clean
	rm -rf $(OBJ_DIR) $(BIN_DIR)
	$(MAKE) -C $(LIBFT_DIR) fclean

# Rebuild everything from scratch
re: fclean all

.PHONY: all clean fclean re