CXX := g++
SRC_DIR := src
BUILD_DIR := build
TARGET := $(BUILD_DIR)/holst
STD ?= c++23

CXXFLAGS := -std=$(STD) -g -Wall -Wextra -O2 -Iinclude
LDFLAGS := 
LDLIBS := -lSDL2

# Source files and object files
SRCS := $(shell find $(SRC_DIR) -name '*.cpp')
OBJS := $(patsubst $(SRC_DIR)/%.cpp,$(BUILD_DIR)/%.o,$(SRCS))

# Default target
all: $(TARGET)

# Link final executable
$(TARGET): $(OBJS)
	@mkdir -p $(dir $@)
	$(CXX) $(OBJS) -o $@ $(LDFLAGS) $(LDLIBS) 

# Compile source files
$(BUILD_DIR)/%.o: $(SRC_DIR)/%.cpp
	@mkdir -p $(dir $@)
	$(CXX) $(CXXFLAGS) -c $< -o $@

# Clean build files
clean:
	rm -rf $(BUILD_DIR)

# Print configuration (debugging)
print:
	@echo "Compiler: $(CXX)"
	@echo "Standard: $(STD)"
	@echo "Sources: $(SRCS)"
	@echo "Objects: $(OBJS)"