DateUtils: move event details formatting to DateUtils

Also display second as 0 since it is easier
to read and does not have meaning for the user.

app/src/main/java/utils/DateUtils.kt

@@ -5,8 +5,13 @@ import android.text.format.DateFormat
 import it.danieleverducci.lunatracker.R
 import java.util.Date
 
+
 class DateUtils {
     companion object {
+        /**
+         * Format time duration in seconds as e.g. "2 hours, 1 min".
+         * Used for the duration to the next/previous event in the event details dialog.
+         */
         fun formatTimeDuration(context: Context, secondsDiff: Long): String {
             var seconds = secondsDiff
 
@@ -65,7 +70,8 @@ class DateUtils {
         }
 
         /**
-         * Formats the provided unix timestamp in a string like "3 hours, 26 minutes ago)
+         * Formats the provided unix timestamp in a string like "3 hours, 26 minutes ago".
+         * Used for the event list.
          */
         fun formatTimeAgo(context: Context, unixTime: Long): String {
             val secondsDiff = (System.currentTimeMillis() / 1000) - unixTime
@@ -100,5 +106,17 @@ class DateUtils {
             }
             return formattedTime.toString()
         }
+
+        /**
+         * Format time as localized string without seconds. E.g. "28 Sept 03:36:00".
+         * The seconds are set to 0 since they are distracting and not relevant.
+         * Used in the event detail dialog.
+         */
+        fun formatDateTime(unixTime: Long): String {
+            val roundedUnixTime = unixTime - (unixTime % 60)
+            val date = Date(roundedUnixTime * 1000)
+            val dateFormat = java.text.DateFormat.getDateTimeInstance()
+            return dateFormat.format(date)
+        }
     }
 }