Translation.java

package fr.tikione.steam.cleaner.util;

import fr.tikione.ini.InfinitiveLoopException;
import fr.tikione.ini.Ini;
import fr.tikione.steam.cleaner.Main;
import fr.tikione.steam.cleaner.util.conf.I18nEncoding;

import java.io.CharConversionException;
import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.regex.PatternSyntaxException;

/**
 * Translation handler.
 */
public class Translation {
    
    private static final String DEFAULT_LANGCODE = "en";
    
    private static final String CONF_BASEPATH = "conf/i18n/";
    
    public static final String CONF_BASEPATH_FLAGS = CONF_BASEPATH + "flags/";
    
    private static final String CONF_EXT = ".ini";
    
    private Ini iniLang;
    
    public static final String SEC_WMAIN = "W_MAIN";
    
    public static final String SEC_WABOUT = "W_ABOUT";
    
    public static final String SEC_WCHECKFORUPDATES = "W_CHECKFORUPDATES";
    
    public static final String SEC_DELETE = "W_DELETE";
    
    public static final String SEC_OPTIONS = "W_OPTIONS";
    
    public Translation(String localeCode) {
        try {
            iniLang = new Ini();
            String lngEncoding = I18nEncoding.getInstance().getLngEncoding(localeCode);
            iniLang.load(new File(CONF_BASEPATH + localeCode + ".ini"), lngEncoding);
            Log.info("Loaded language '" + localeCode + "' with " + lngEncoding + " encoding");
        } catch (IOException | PatternSyntaxException | InfinitiveLoopException ex) {
            Log.error(ex);
        }
    }
    
    /**
     * Get a translated string denoted by an identifier and a section name.
     *
     * @param section the section name.
     * @param key the string identifier.
     * @return the translated string.
     */
    public String getString(String section, String key) {
        try {
            return iniLang.getKeyValue(" ??? ", section, key);
        } catch (CharConversionException | InfinitiveLoopException ex) {
            Log.error(ex);
            return " ??? ";
        }
    }
    
    public static List<CountryLanguage> getAvailLangList()
            throws IOException,
            InfinitiveLoopException {
        List<CountryLanguage> langList = new ArrayList<>(2);
        File i18nFolder = new File(CONF_BASEPATH);
        File[] langFiles = i18nFolder.listFiles((File dir, String name) -> name.endsWith(CONF_EXT) && !name.equalsIgnoreCase("encoding.ini"));
        Ini langIni = new Ini();
        if (langFiles != null) {
            for (File langFile : langFiles) {
                langIni.load(langFile, Main.CONF_ENCODING);
                String langDesc = langIni.getKeyValue(" ??? ", "", "name");
                String langFilename = langFile.getName();
                langFilename = langFilename.substring(0, langFilename.indexOf('.'));
                langList.add(new CountryLanguage(langFilename, langDesc));
            }
        }
        return langList;
    }
    
    @SuppressWarnings("CallToThreadDumpStack")
    public static String getSystemLangIfAvailable(List<CountryLanguage> availLangList) {
        String sysLang = DEFAULT_LANGCODE;
        try {
            String userLanguage = System.getProperty("user.language");
            String userCountry = System.getProperty("user.country");
            String userLocale = userLanguage + "_" + userCountry;
            for (CountryLanguage lang : availLangList) {
                String langCode = lang.getCode();
                if (langCode.equalsIgnoreCase(userLocale) || langCode.equalsIgnoreCase(userLanguage)) {
                    sysLang = langCode;
                    break;
                }
            }
        } catch (Exception ex) {
            Log.error(ex);
            sysLang = DEFAULT_LANGCODE;
        }
        return sysLang;
    }
}