# Compiler
CXX = g++

# Compiler flags
# -Isrc: Add src directory to include path
# -Wall: Enable all warnings
# -Wextra: Enable extra warnings
# -std=c++17: Use C++17 standard
CXXFLAGS = -O3 -Isrc -Wall -Wextra -std=c++14

# Build directory
BUILD_DIR = build

# Find all .cpp files in src and its subdirectories
SRCS = $(shell find src -name '*.cpp')

# VPATH tells make where to look for prerequisites
VPATH = $(sort $(dir $(SRCS)))

# Object files in the build directory
OBJS = $(addprefix $(BUILD_DIR)/, $(notdir $(SRCS:.cpp=.o)))

# Name of the executable
TARGET = kyn

# The 'all' target is the default when you just run 'make'
all: $(TARGET)

# Link the object files to create the executable
# At this point, we do -lcurl to link curl for the request lib
$(TARGET): $(OBJS)
	$(CXX) $(CXXFLAGS) -lcurl -o $(TARGET) $(OBJS)

# Compile .cpp files to .o files in the build directory
$(BUILD_DIR)/%.o: %.cpp
	@mkdir -p $(BUILD_DIR)
	$(CXX) $(CXXFLAGS) -c $< -o $@

# The 'clean' target removes generated files
clean:
	rm -rf $(BUILD_DIR) $(TARGET)

# Phony targets are not files
.PHONY: all clean