diff options
author | cyberta <cyberta@riseup.net> | 2024-01-25 23:41:42 +0000 |
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committer | cyberta <cyberta@riseup.net> | 2024-01-25 23:41:42 +0000 |
commit | 5bf3f807a4804c18b7dc88e07e4e34ecf0791713 (patch) | |
tree | a092fd4ab72d1a31daa3cc442331cbb05d034ef0 /app/src/main/java/se/leap/bitmaskclient/base/utils/TimezoneHelper.java | |
parent | ce8106f60d83ee2a788f1920437a0bbd48d6b15f (diff) | |
parent | e84289ab4380ae61cc9f2a86da9a16d1aae45cbd (diff) |
Merge branch 'post_release_work' into 'master'
post release tweaks and fixes
Closes #9150 and #8983
See merge request leap/bitmask_android!264
Diffstat (limited to 'app/src/main/java/se/leap/bitmaskclient/base/utils/TimezoneHelper.java')
-rw-r--r-- | app/src/main/java/se/leap/bitmaskclient/base/utils/TimezoneHelper.java | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/app/src/main/java/se/leap/bitmaskclient/base/utils/TimezoneHelper.java b/app/src/main/java/se/leap/bitmaskclient/base/utils/TimezoneHelper.java new file mode 100644 index 00000000..63b12fd3 --- /dev/null +++ b/app/src/main/java/se/leap/bitmaskclient/base/utils/TimezoneHelper.java @@ -0,0 +1,47 @@ +package se.leap.bitmaskclient.base.utils; + +import androidx.annotation.VisibleForTesting; + +import java.util.Calendar; + +import de.blinkt.openvpn.core.NativeUtils; + +public class TimezoneHelper { + + public interface TimezoneInterface { + int getCurrentTimezone(); + } + + private static TimezoneInterface instance = new DefaultTimezoneHelper(); + + @VisibleForTesting + public TimezoneHelper(TimezoneInterface timezoneInterface) { + if (!NativeUtils.isUnitTest()) { + throw new IllegalStateException("TimezoneHelper injected with timezoneInterface outside of an unit test"); + } + instance = timezoneInterface; + } + + public static TimezoneInterface get() { + return instance; + } + + public static int timezoneDistance(int localTimezone, int remoteTimezone) { // Distance along the numberline of Prime Meridian centric, assumes UTC-11 through UTC+12 + int dist = Math.abs(localTimezone - remoteTimezone); + // Farther than 12 timezones and it's shorter around the "back" + if (dist > 12) + dist = 12 - (dist - 12); // Well i'll be. Absolute values make equations do funny things. + return dist; + } + + public static int getCurrentTimezone() { + return get().getCurrentTimezone(); + } + + private static class DefaultTimezoneHelper implements TimezoneInterface { + @Override + public int getCurrentTimezone() { + return Calendar.getInstance().get(Calendar.ZONE_OFFSET) / 3600000; + } + } +} |