LegupPreferences.java

package edu.rpi.legup.app;

import edu.rpi.legup.ui.color.ColorPreferences;

import java.io.File;
import java.util.HashMap;
import java.util.Map;
import java.util.prefs.Preferences;

public class LegupPreferences {

    private static LegupPreferences instance;

    private static String savedPath = "";

    private static final Preferences preferences =
            Preferences.userNodeForPackage(LegupPreferences.class);

    private static final Map<String, String> preferencesMap = new HashMap<>();
    private static final Map<String, String> defaultPreferencesMap = new HashMap<>();

    public static final String WORK_DIRECTORY = "work-directory";
    public static final String START_FULL_SCREEN = "start-full-screen";
    public static final String AUTO_UPDATE = "auto-update";
    public static final String DARK_MODE = "night-mode";
    public static final String SHOW_MISTAKES = "show-mistakes";
    public static final String SHOW_ANNOTATIONS = "show-annotations";
    public static final String ALLOW_DEFAULT_RULES = "allow-default-rules";
    public static final String AUTO_GENERATE_CASES = "auto-generate-cases";
    public static final String IMMEDIATE_FEEDBACK = "immediate-feedback";
    public static final String COLOR_THEME_FILE = "color-theme-file";
    public static final String COLOR_BLIND = "color-blind";

    static {
        defaultPreferencesMap.put(WORK_DIRECTORY, System.getProperty("user.dir"));
        defaultPreferencesMap.put(START_FULL_SCREEN, Boolean.toString(false));
        defaultPreferencesMap.put(AUTO_UPDATE, Boolean.toString(true));
        defaultPreferencesMap.put(DARK_MODE, Boolean.toString(false));
        defaultPreferencesMap.put(SHOW_MISTAKES, Boolean.toString(true));
        defaultPreferencesMap.put(SHOW_ANNOTATIONS, Boolean.toString(false));
        defaultPreferencesMap.put(ALLOW_DEFAULT_RULES, Boolean.toString(false));
        defaultPreferencesMap.put(AUTO_GENERATE_CASES, Boolean.toString(true));
        defaultPreferencesMap.put(IMMEDIATE_FEEDBACK, Boolean.toString(true));
        defaultPreferencesMap.put(COLOR_BLIND, Boolean.toString(false));
        defaultPreferencesMap.put(COLOR_THEME_FILE, System.getProperty("user.dir") + File.separator + ColorPreferences.LIGHT_COLOR_THEME_FILE_NAME);
    }

    static {
        preferencesMap.put(
                WORK_DIRECTORY,
                preferences.get(WORK_DIRECTORY, defaultPreferencesMap.get(WORK_DIRECTORY)));
        preferencesMap.put(
                START_FULL_SCREEN,
                preferences.get(START_FULL_SCREEN, defaultPreferencesMap.get(START_FULL_SCREEN)));
        preferencesMap.put(
                AUTO_UPDATE, preferences.get(AUTO_UPDATE, defaultPreferencesMap.get(AUTO_UPDATE)));
        preferencesMap.put(
                DARK_MODE, preferences.get(DARK_MODE, defaultPreferencesMap.get(DARK_MODE)));
        preferencesMap.put(
                SHOW_MISTAKES,
                preferences.get(SHOW_MISTAKES, defaultPreferencesMap.get(SHOW_MISTAKES)));
        preferencesMap.put(
                SHOW_ANNOTATIONS,
                preferences.get(SHOW_ANNOTATIONS, defaultPreferencesMap.get(SHOW_ANNOTATIONS)));
        preferencesMap.put(
                ALLOW_DEFAULT_RULES,
                preferences.get(
                        ALLOW_DEFAULT_RULES, defaultPreferencesMap.get(ALLOW_DEFAULT_RULES)));
        preferencesMap.put(
                AUTO_GENERATE_CASES,
                preferences.get(
                        AUTO_GENERATE_CASES, defaultPreferencesMap.get(AUTO_GENERATE_CASES)));
        preferencesMap.put(
                IMMEDIATE_FEEDBACK,
                preferences.get(IMMEDIATE_FEEDBACK, defaultPreferencesMap.get(IMMEDIATE_FEEDBACK)));
        preferencesMap.put(
                COLOR_BLIND, preferences.get(COLOR_BLIND, defaultPreferencesMap.get(COLOR_BLIND)));
        preferencesMap.put(COLOR_THEME_FILE, preferences.get(COLOR_THEME_FILE, defaultPreferencesMap.get(COLOR_THEME_FILE)));
    }

    /**
     * Gets the legup preferences singleton instance.
     *
     * @return legup preferences
     */
    public static LegupPreferences getInstance() {
        if (instance == null) {
            instance = new LegupPreferences();
        }
        return instance;
    }

    /** Private LegupPreferences Singleton Constructor */
    private LegupPreferences() {}

    /**
     * Gets the user preference by the string key
     *
     * @param key key name of the preference
     * @return value of the preference
     */
    public String getUserPref(String key) {
        return preferencesMap.get(key);
    }

    /**
     * Gets the user preference by the string key, value pair
     *
     * @param key key name of the preference
     * @param value value of the preference
     */
    public void setUserPref(String key, String value) {
        preferences.put(key, value);
        preferencesMap.put(key, value);
    }

    public boolean getUserPrefAsBool(String key) {
        if (preferencesMap.get(key).equalsIgnoreCase(Boolean.toString(true))) {
            return true;
        } else {
            if (preferencesMap.get(key).equalsIgnoreCase(Boolean.toString(false))) {
                return false;
            } else {
                throw new RuntimeException("Cannot get user preference - " + key);
            }
        }
    }

    public String getSavedPath() {
        return savedPath;
    }

    public void setSavedPath(String path) {
        savedPath = path;
    }
}