# Simple Makefile wrapper to configure, build and run the CMake project.
# Usage:
#   make           # configure + build with all cores
#   make build     # configure + build with all cores
#   make all       # clean + configure + build + run
#   make run       # just run the executable (no build)
#   make clean     # run CMake clean (or remove build files)
#   make distclean # remove build dir and generated targets

CMAKE ?= cmake
BUILD_DIR := build
CMAKE_BUILD_TYPE ?= Release
TARGET := target/bin/simulator_exec
GUI_TARGET := target/bin/simulator_qt
NPROC := $(shell nproc)

.PHONY: all configure build run clean distclean

# Default target: just build
default: build

# make all: clean, build, then run
all: clean build run

configure:
	@echo "Configuring (build dir: $(BUILD_DIR), type: $(CMAKE_BUILD_TYPE))"
	$(CMAKE) -S . -B $(BUILD_DIR) -DCMAKE_BUILD_TYPE=$(CMAKE_BUILD_TYPE)

build: configure
	@echo "Building with $(NPROC) cores..."
	$(CMAKE) --build $(BUILD_DIR) -j$(NPROC)

# make run: just launch the executable (no build)
run:
	@echo "Running primary target..."
	# Prefer GUI if available, otherwise fall back to console executable
	@if [ -x "$(GUI_TARGET)" ]; then \
		echo "Launching GUI: $(GUI_TARGET)"; \
		./$(GUI_TARGET); \
	elif [ -x "$(TARGET)" ]; then \
		./$(TARGET); \
	else \
		echo "No runnable target found (tried $(GUI_TARGET) and $(TARGET))."; exit 1; \
	fi

.PHONY: run-gui
run-gui: build
	@echo "Running GUI target ($(GUI_TARGET))"
	@if [ -x "$(GUI_TARGET)" ]; then \
		echo "Starting GUI..."; ./$(GUI_TARGET) -platform xcb; \
	else \
		echo "GUI executable not found: $(GUI_TARGET)"; exit 1; \
	fi

.PHONY: build-gui
build-gui: configure
	@echo "Building GUI (and core)..."
	$(CMAKE) --build $(BUILD_DIR) -j$(shell nproc) --target simulator_qt || true

clean:
	@echo "Cleaning build (CMake clean)..."
	-$(CMAKE) --build $(BUILD_DIR) --target clean || true
	@echo "Removing target directory..."
	-rm -rf target/

distclean:
	@echo "Removing build artifacts and generated files..."
	-rm -rf $(BUILD_DIR) CMakeFiles CMakeCache.txt cmake_install.cmake target/