1package eu.siacs.conversations.utils;
  2
  3import android.content.Context;
  4import android.telephony.TelephonyManager;
  5
  6import java.util.ArrayList;
  7import java.util.List;
  8import java.util.Locale;
  9
 10import io.michaelrocks.libphonenumber.android.NumberParseException;
 11import io.michaelrocks.libphonenumber.android.PhoneNumberUtil;
 12import io.michaelrocks.libphonenumber.android.Phonenumber;
 13
 14public class PhoneNumberUtilWrapper {
 15
 16    private static volatile PhoneNumberUtil instance;
 17
 18
 19    public static String getCountryForCode(String code) {
 20        Locale locale = new Locale("", code);
 21        return locale.getDisplayCountry();
 22    }
 23
 24    public static String getUserCountry(Context context) {
 25        try {
 26            final TelephonyManager tm = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);
 27            final String simCountry = tm.getSimCountryIso();
 28            if (simCountry != null && simCountry.length() == 2) { // SIM country code is available
 29                return simCountry.toUpperCase(Locale.US);
 30            } else if (tm.getPhoneType() != TelephonyManager.PHONE_TYPE_CDMA) { // device is not 3G (would be unreliable)
 31                String networkCountry = tm.getNetworkCountryIso();
 32                if (networkCountry != null && networkCountry.length() == 2) { // network country code is available
 33                    return networkCountry.toUpperCase(Locale.US);
 34                }
 35            }
 36        } catch (Exception e) {
 37            // fallthrough
 38        }
 39        Locale locale = Locale.getDefault();
 40        return locale.getCountry();
 41    }
 42
 43    public static String normalize(Context context, String number) throws NumberParseException {
 44        final PhoneNumberUtil instance = getInstance(context);
 45        return instance.format(instance.parse(number, getUserCountry(context)), PhoneNumberUtil.PhoneNumberFormat.E164);
 46    }
 47
 48    public static PhoneNumberUtil getInstance(final Context context) {
 49        PhoneNumberUtil localInstance = instance;
 50        if (localInstance == null) {
 51            synchronized (PhoneNumberUtilWrapper.class) {
 52                localInstance = instance;
 53                if (localInstance == null) {
 54                    instance = localInstance = PhoneNumberUtil.createInstance(context);
 55                }
 56
 57            }
 58        }
 59        return localInstance;
 60    }
 61
 62    public static List<Country> getCountries(final Context context) {
 63        List<Country> countries = new ArrayList<>();
 64        for (String region : getInstance(context).getSupportedRegions()) {
 65            countries.add(new Country(region, getInstance(context).getCountryCodeForRegion(region)));
 66        }
 67        return countries;
 68
 69    }
 70
 71    public static class Country implements Comparable<Country> {
 72        private final String name;
 73        private final String region;
 74        private final int code;
 75
 76        Country(String region, int code) {
 77            this.name = getCountryForCode(region);
 78            this.region = region;
 79            this.code = code;
 80        }
 81
 82        public String getName() {
 83            return name;
 84        }
 85
 86        public String getRegion() {
 87            return region;
 88        }
 89
 90        public String getCode() {
 91            return '+' + String.valueOf(code);
 92        }
 93
 94        @Override
 95        public int compareTo(Country o) {
 96            return name.compareTo(o.name);
 97        }
 98    }
 99
100}