Class SaveManager

src/main/java/net/raphimc/viaproxy/saves/SaveManager.java:35–111

import java.util.Map;

public class SaveManager {

    private static final File SAVE_FILE = new File(ViaProxy.getCwd(), "saves.json");
    private static final Gson GSON = new Gson();

    public final AccountsSave accountsSave = new AccountsSave();
    public final UISave uiSave = new UISave();

    private final Map<String, JsonElement> unknownSaves = new HashMap<>();

    public SaveManager() {
        try {
            if (!SAVE_FILE.exists()) {
                SAVE_FILE.createNewFile();
                this.save();
            }

            final FileReader reader = new FileReader(SAVE_FILE);
            final JsonObject saveObject = GSON.fromJson(reader, JsonObject.class);
            reader.close();

            SaveMigrator.migrate(saveObject);

            RStream
                    .of(this)
                    .fields()
                    .filter(field -> AbstractSave.class.isAssignableFrom(field.type()))
                    .forEach(field -> {
                        final AbstractSave save = field.get();
                        try {
                            if (saveObject.has(save.getName())) {
                                save.load(saveObject.remove(save.getName()));
                            }
                        } catch (Throwable e) {
                            Logger.LOGGER.error("Failed to load save " + save.getName(), e);
                        }
                    });

            for (Map.Entry<String, JsonElement> entry : saveObject.entrySet()) {
                this.unknownSaves.put(entry.getKey(), entry.getValue());
            }

            this.save();
        } catch (Throwable e) {
            throw new RuntimeException("Failed to initialize SaveManager", e);
        }
    }

    public synchronized void save() {
        try {
            final JsonObject saveObject = new JsonObject();
            this.unknownSaves.forEach(saveObject::add);
            RStream
                    .of(this)
                    .fields()
                    .filter(field -> AbstractSave.class.isAssignableFrom(field.type()))
                    .forEach(field -> {
                        final AbstractSave save = field.get();