1 files changed, 50 insertions, 0 deletions
diff --git a/main/src/cgeo/geocaching/utils/CalendarUtils.java b/main/src/cgeo/geocaching/utils/CalendarUtils.java
new file mode 100644
index 0000000..ed3b18c
--- /dev/null
+++ b/main/src/cgeo/geocaching/utils/CalendarUtils.java
@@ -0,0 +1,50 @@
+package cgeo.geocaching.utils;
+
+import cgeo.geocaching.Geocache;
+
+import java.util.Calendar;
+import java.util.Date;
+
+public final class CalendarUtils {
+
+    private CalendarUtils() {
+        // utility class
+    }
+
+    public static int daysSince(final long date) {
+        final Calendar logDate = Calendar.getInstance();
+        logDate.setTimeInMillis(date);
+        logDate.set(Calendar.SECOND, 0);
+        logDate.set(Calendar.MINUTE, 0);
+        logDate.set(Calendar.HOUR_OF_DAY, 0);
+        final Calendar today = Calendar.getInstance();
+        today.set(Calendar.SECOND, 0);
+        today.set(Calendar.MINUTE, 0);
+        today.set(Calendar.HOUR_OF_DAY, 0);
+        return (int) Math.round((today.getTimeInMillis() - logDate.getTimeInMillis()) / 86400000d);
+    }
+
+    public static int daysSince(final Calendar date) {
+        return daysSince(date.getTimeInMillis());
+    }
+
+    public static boolean isPastEvent(final Geocache cache) {
+        if (!cache.isEventCache()) {
+            return false;
+        }
+        final Date hiddenDate = cache.getHiddenDate();
+        return hiddenDate != null && CalendarUtils.daysSince(hiddenDate.getTime()) > 0;
+    }
+
+    /**
+     * Return whether the given date is *more* than 1 day away. We allow 1 day to be "present time" to compensate for
+     * potential timezone issues.
+     *
+     * @param date
+     *            the date
+     */
+    public static boolean isFuture(final Calendar date) {
+        return daysSince(date) < -1;
+    }
+
+}