[gnome-sudoku] Show puzzle completion time as hours, minutes, seconds

[Parin Porecha <parinporecha src gnome org>]

commit 15152160c840238e1ea7507ca44821cdac4991b2
Author: Parin Porecha <parinporecha gmail com>
Date:   Tue Jun 10 16:09:31 2014 +0530

    Show puzzle completion time as hours, minutes, seconds

 src/gnome-sudoku.vala |    3 ++-
 src/sudoku-game.vala  |   32 ++++++++++++++++++++++++++++++++
 2 files changed, 34 insertions(+), 1 deletions(-)
---
diff --git a/src/gnome-sudoku.vala b/src/gnome-sudoku.vala
index cc94e15..8950003 100644
--- a/src/gnome-sudoku.vala
+++ b/src/gnome-sudoku.vala
@@ -266,6 +266,7 @@ public class Sudoku : Gtk.Application
 
         game.board.completed.connect (() => {
             var time = game.get_total_time_played ();
+            var time_str = SudokuGame.seconds_to_hms_string (time);
 
             for (var i = 0; i < game.board.rows; i++)
             {
@@ -277,7 +278,7 @@ public class Sudoku : Gtk.Application
 
             saver.add_game_to_finished (game, true);
 
-            var dialog = new MessageDialog(window, DialogFlags.DESTROY_WITH_PARENT, MessageType.INFO, 
ButtonsType.NONE, _("Well done, you completed the puzzle in %f seconds"), time);
+            var dialog = new MessageDialog(window, DialogFlags.DESTROY_WITH_PARENT, MessageType.INFO, 
ButtonsType.NONE, _("Well done, you completed the puzzle in %s"), time_str);
 
             dialog.add_button (_("Same difficulty again"), 0);
             dialog.add_button (_("New difficulty"), 1);
diff --git a/src/sudoku-game.vala b/src/sudoku-game.vala
index fef75b7..31fc560 100644
--- a/src/sudoku-game.vala
+++ b/src/sudoku-game.vala
@@ -128,4 +128,36 @@ public class SudokuGame
     {
         return board.previous_played_time + timer.elapsed ();
     }
+
+    public static string seconds_to_hms_string (double time_in_seconds)
+    {
+        var SECOND = _("second");
+        var SECONDS = _("seconds");
+        var MINUTE = _("minute");
+        var MINUTES = _("minutes");
+        var HOUR = _("hour");
+        var HOURS = _("hours");
+
+        string[] time_array = {};
+        var seconds = (int) time_in_seconds;
+        var hours = seconds / 3600;
+        var hour_string = (hours == 1) ? HOUR : HOURS;
+
+        seconds = seconds % 3600;
+
+        var minutes = seconds / 60;
+        var minute_string = (minutes == 1) ? MINUTE : MINUTES;
+
+        seconds = seconds % 60;
+        var second_string = (seconds == 1) ? SECOND : SECONDS;
+
+        if (hours != 0)
+            time_array += "%d %s".printf (hours, hour_string);
+        if (minutes != 0)
+            time_array += "%d %s".printf (minutes, minute_string);
+        if (seconds != 0)
+            time_array += "%d %s".printf (seconds, second_string);
+
+        return string.joinv (", ", time_array);
+    }
 }