# Compiler and flags
CXX = g++
CXXFLAGS = -Wall -Wextra -g -ggdb3 -std=c++14 \
		   -I./src \
		   -isystem./ext/tomlc17/src \
		   -isystem./ext/raylib/src \
		   -isystem./ext/raygui/src \
		   -isystem./ext/raygui/styles
LDFLAGS = -L./ext/raylib/src -lraylib -lm -lpthread -ldl -lrt -lX11

# Directories
SRC_DIR = src
BUILD_DIR ?= build
RAYLIB_DIR = ext/raylib/src
TARGET = ${BUILD_DIR}/orbit_sim
TEST_DIR = tests
TEST_TARGET = ${BUILD_DIR}/orbit_test

# Source files (exclude old mission planning files)
CPP_SOURCES := $(wildcard $(SRC_DIR)/*.cpp)
C_SOURCES = ext/tomlc17/src/tomlc17.c
TEST_SOURCES := $(wildcard $(TEST_DIR)/*.cpp)

# Object files
CPP_OBJECTS = $(CPP_SOURCES:$(SRC_DIR)/%.cpp=$(BUILD_DIR)/%.o)
C_OBJECTS = $(BUILD_DIR)/tomlc17.o
TEST_OBJECTS := $(patsubst $(TEST_DIR)/%.cpp, $(BUILD_DIR)/%.o, $(TEST_SOURCES))

# Default target (updates ctags if available)
all: raylib $(BUILD_DIR) $(TARGET)
	@command -v ctags >/dev/null 2>&1 && ctags -R tests/ src/ || true

# Build raylib
raylib:
	@if [ ! -f $(RAYLIB_DIR)/libraylib.a ]; then \
		echo "Building raylib..."; \
		cd $(RAYLIB_DIR) && $(MAKE) PLATFORM=PLATFORM_DESKTOP; \
	fi

# Create build directory
$(BUILD_DIR):
	mkdir -p $(BUILD_DIR)

# Link the executable
$(TARGET): $(C_OBJECTS) $(CPP_OBJECTS) raylib
	$(CXX) $(C_OBJECTS) $(CPP_OBJECTS) -o $(TARGET) $(LDFLAGS)

# Compile C++ source files
$(CPP_OBJECTS): $(BUILD_DIR)/%.o : $(SRC_DIR)/%.cpp
	$(CXX) $(CXXFLAGS) -c $< -o $@

# Compile C source files
$(C_OBJECTS): $(BUILD_DIR)/%.o : $(C_SOURCES)
	$(CC) -Wall -Wextra -g -ggdb3 -std=c99 -I./src -I./ext/tomlc17/src -c $< -o $@

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

# Clean everything including raylib
clean-all: clean
	cd $(RAYLIB_DIR) && $(MAKE) clean

# Rebuild
rebuild: clean all

# Run the simulation
run: $(TARGET)
	./$(TARGET)

$(TEST_OBJECTS): $(BUILD_DIR)/%.o : $(TEST_DIR)/%.cpp
	$(CXX) $(CXXFLAGS) -c $< -o $@

# Build automated test suite
test-build: $(BUILD_DIR) $(C_OBJECTS) $(CPP_OBJECTS) $(TEST_OBJECTS)
	$(CXX) $(C_OBJECTS) $(TEST_OBJECTS) \
		build/test_utilities.o \
		build/physics.o \
		build/orbital_mechanics.o \
		build/simulation.o \
		build/config_loader.o \
		build/config_validator.o \
		build/maneuver.o \
		build/spacecraft.o \
		build/rendezvous.o \
		-o $(TEST_TARGET) -lCatch2Main -lCatch2 -lm

# Run automated test suite
test: test-build
	./$(TEST_TARGET)

.PHONY: all clean clean-all rebuild run test test-build raylib ctags