Add support for scheduled message sends.

app/src/main/java/org/thoughtcrime/securesms/util/DateUtils.java

@@ -30,6 +30,7 @@ import org.thoughtcrime.securesms.R;
 import java.text.DateFormatSymbols;
 import java.text.ParseException;
 import java.text.SimpleDateFormat;
+import java.util.Calendar;
 import java.util.Date;
 import java.util.Locale;
 import java.util.concurrent.TimeUnit;
@@ -44,6 +45,7 @@ public class DateUtils extends android.text.format.DateUtils {
   private static final ThreadLocal<SimpleDateFormat> DATE_FORMAT            = new ThreadLocal<>();
   private static final ThreadLocal<SimpleDateFormat> BRIEF_EXACT_FORMAT     = new ThreadLocal<>();
   private static final long                          MAX_RELATIVE_TIMESTAMP = TimeUnit.MINUTES.toMillis(3);
+  private static final int                           HALF_A_YEAR_IN_DAYS    = 182;
 
   private static boolean isWithin(final long millis, final long span, final TimeUnit unit) {
     return System.currentTimeMillis() - millis <= unit.toMillis(span);
@@ -110,11 +112,22 @@ public class DateUtils extends android.text.format.DateUtils {
       int mins = (int) TimeUnit.MINUTES.convert(System.currentTimeMillis() - timestamp, TimeUnit.MILLISECONDS);
       return context.getResources().getString(R.string.DateUtils_minutes_ago, mins);
     } else {
-      String format = DateFormat.is24HourFormat(context) ? "HH:mm" : "hh:mm a";
-      return getFormattedDateTime(timestamp, format, locale);
+      return getOnlyTimeString(context, locale, timestamp);
     }
   }
 
+  /**
+   * Formats a given timestamp as just the time.
+   *
+   * For example:
+   *  For 12 hour locale: 7:23 pm
+   *  For 24 hour locale: 19:23
+   */
+  public static String getOnlyTimeString(final Context context, final Locale locale, final long timestamp) {
+    String format = DateFormat.is24HourFormat(context) ? "HH:mm" : "hh:mm a";
+    return getFormattedDateTime(timestamp, format, locale);
+  }
+
   public static String getTimeString(final Context c, final Locale locale, final long timestamp) {
     StringBuilder format = new StringBuilder();
 
@@ -129,6 +142,37 @@ public class DateUtils extends android.text.format.DateUtils {
     return getFormattedDateTime(timestamp, format.toString(), locale);
   }
 
+  /**
+   * Formats the passed timestamp based on the current time at a day precision.
+   *
+   * For example:
+   *  - Today
+   *  - Wed
+   *  - Mon
+   *  - Jan 31
+   *  - Feb 4
+   *  - Jan 12, 2033
+   */
+  public static String getDayPrecisionTimeString(Context context, Locale locale, long timestamp) {
+    SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyyMMdd");
+
+    if (simpleDateFormat.format(System.currentTimeMillis()).equals(simpleDateFormat.format(timestamp))) {
+      return context.getString(R.string.DeviceListItem_today);
+    } else {
+      String format;
+
+      if (isWithinAbs(timestamp, 6, TimeUnit.DAYS)) {
+        format = "EEE ";
+      } else if (isWithinAbs(timestamp, 365, TimeUnit.DAYS)) {
+        format = "MMM d";
+      } else {
+        format = "MMM d, yyy";
+      }
+
+      return getFormattedDateTime(timestamp, format, locale);
+    }
+  }
+
   public static String getDayPrecisionTimeSpanString(Context context, Locale locale, long timestamp) {
     SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyyMMdd");
 
@@ -165,13 +209,44 @@ public class DateUtils extends android.text.format.DateUtils {
       return context.getString(R.string.DateUtils_today);
     } else if (isYesterday(timestamp)) {
       return context.getString(R.string.DateUtils_yesterday);
-    } else if (isWithin(timestamp, 182, TimeUnit.DAYS)) {
+    } else if (isWithin(timestamp, HALF_A_YEAR_IN_DAYS, TimeUnit.DAYS)) {
       return formatDateWithDayOfWeek(locale, timestamp);
     } else {
       return formatDateWithYear(locale, timestamp);
     }
   }
 
+  public static String getScheduledMessagesDateHeaderString(@NonNull Context context,
+                                                            @NonNull Locale locale,
+                                                            long timestamp)
+  {
+    if (isToday(timestamp)) {
+      return context.getString(R.string.DateUtils_today);
+    } else if (isWithinAbs(timestamp, HALF_A_YEAR_IN_DAYS, TimeUnit.DAYS)) {
+      return formatDateWithDayOfWeek(locale, timestamp);
+    } else {
+      return formatDateWithYear(locale, timestamp);
+    }
+  }
+
+  public static String getScheduledMessageDateString(@NonNull Context context, @NonNull Locale locale, long timestamp) {
+    String dayModifier;
+    if (isToday(timestamp)) {
+      Calendar calendar = Calendar.getInstance(locale);
+      if (calendar.get(Calendar.HOUR_OF_DAY) >= 19) {
+        dayModifier = context.getString(R.string.DateUtils_tonight);
+      } else {
+        dayModifier = context.getString(R.string.DateUtils_today);
+      }
+    } else {
+      dayModifier = context.getString(R.string.DateUtils_tomorrow);
+    }
+    String format = DateFormat.is24HourFormat(context) ? "HH:mm" : "hh:mm a";
+    String time   = getFormattedDateTime(timestamp, format, locale);
+
+    return context.getString(R.string.DateUtils_schedule_at, dayModifier, time);
+  }
+
   public static String formatDateWithDayOfWeek(@NonNull Locale locale, long timestamp) {
     return getFormattedDateTime(timestamp, "EEE, MMM d", locale);
   }

app/src/main/java/org/thoughtcrime/securesms/util/FeatureFlags.java

@@ -105,6 +105,7 @@ public final class FeatureFlags {
   private static final String PAYPAL_ONE_TIME_DONATIONS         = "android.oneTimePayPalDonations.2";
   private static final String PAYPAL_RECURRING_DONATIONS        = "android.recurringPayPalDonations.2";
   private static final String TEXT_FORMATTING                   = "android.textFormatting";
+  private static final String SCHEDULED_MESSAGE_SENDS           = "android.scheduledMessageSends";
 
   /**
    * We will only store remote values for flags in this set. If you want a flag to be controllable
@@ -160,7 +161,8 @@ public final class FeatureFlags {
       CHAT_FILTERS,
       PAYPAL_ONE_TIME_DONATIONS,
       PAYPAL_RECURRING_DONATIONS,
-      TEXT_FORMATTING
+      TEXT_FORMATTING,
+      SCHEDULED_MESSAGE_SENDS
   );
 
   @VisibleForTesting
@@ -574,6 +576,13 @@ public final class FeatureFlags {
     return getBoolean(TEXT_FORMATTING, false);
   }
 
+  /**
+   *  Whether or not we allow the user to schedule message sends. This takes over the entry point for SMS message sends
+   */
+  public static boolean scheduledMessageSends() {
+    return getBoolean(SCHEDULED_MESSAGE_SENDS, false);
+  }
+
   /** Only for rendering debug info. */
   public static synchronized @NonNull Map<String, Object> getMemoryValues() {
     return new TreeMap<>(REMOTE_VALUES);

app/src/main/java/org/thoughtcrime/securesms/util/JavaTimeExtensions.kt

@@ -10,6 +10,7 @@ import java.time.LocalTime
 import java.time.OffsetDateTime
 import java.time.ZoneId
 import java.time.ZoneOffset
+import java.time.ZonedDateTime
 import java.time.format.DateTimeFormatter
 import java.time.format.FormatStyle
 import java.time.temporal.WeekFields
@@ -31,6 +32,28 @@ fun LocalDateTime.toMillis(zoneOffset: ZoneOffset = ZoneId.systemDefault().toOff
   return TimeUnit.SECONDS.toMillis(toEpochSecond(zoneOffset))
 }
 
+/**
+ * Convert [ZonedDateTime] to be same as [System.currentTimeMillis]
+ */
+fun ZonedDateTime.toMillis(): Long {
+  return TimeUnit.SECONDS.toMillis(toEpochSecond())
+}
+
+/**
+ * Convert [LocalDateTime] to a [ZonedDateTime] at the UTC offset
+ */
+fun LocalDateTime.atUTC(): ZonedDateTime {
+  return atZone(ZoneId.ofOffset("UTC", ZoneOffset.UTC))
+}
+
+/**
+ * Create a LocalDateTime with the same year, month, and day, but set
+ * to midnight.
+ */
+fun LocalDateTime.atMidnight(): LocalDateTime {
+  return LocalDateTime.of(year, month, dayOfMonth, 0, 0)
+}
+
 /**
  * Return true if the [LocalDateTime] is within [start] and [end] inclusive.
  */

app/src/main/java/org/thoughtcrime/securesms/util/MessageRecordUtil.kt

@@ -141,6 +141,10 @@ fun MessageRecord.isTextOnly(context: Context): Boolean {
       )
 }
 
+fun MessageRecord.isScheduled(): Boolean {
+  return (this as? MediaMmsMessageRecord)?.scheduledDate?.let { it != -1L } ?: false
+}
+
 /**
  * Returns the QuoteType for this record, as if it was being quoted.
  */