with Ada.Calendar; use Ada.Calendar;
with Ada.Strings; use Ada.Strings;
with Ada.Strings.Fixed; use Ada.Strings.Fixed;


--  This source is licensed under Creative Commons CC0 v1.0.
--
--  To read the full text, see license.txt in the main directory of this repository
--  or go to https://creativecommons.org/publicdomain/zero/1.0/legalcode.txt
--
--  For a human readable summary, go to https://creativecommons.org/publicdomain/zero/1.0/


package body Simple_Time is


    function To_String
           (Moment : in Time)
        return String
    is
        Raw_Secs : Day_Duration := Seconds (Moment);

        Hours   : Integer := Integer (Raw_Secs) / 3600;
        Minutes : Integer := (Integer (Raw_Secs) - Hours * 3600) / 60;
        Seconds : Duration := Raw_Secs - Duration (Hours) * 3600 - Duration (Minutes) * 60;

        Year_Str : String (1 .. 4);
        Month_Str, Day_Str, Hour_Str, Minute_Str : String (1 .. 2);
        Second_Str : String (1 .. 12);
    begin
        Move (Trim (Year_Number'Image  (Year (Moment)),  Left), Year_Str,   Left, Right, '0');
        Move (Trim (Month_Number'Image (Month (Moment)), Left), Month_Str,  Left, Right, '0');
        Move (Trim (Day_Number'Image   (Day (Moment)),   Left), Day_Str,    Left, Right, '0');
        Move (Trim (Integer'Image      (Hours),          Left), Hour_Str,   Left, Right, '0');
        Move (Trim (Integer'Image      (Minutes),        Left), Minute_Str, Left, Right, '0');
        Move (Trim (Duration'Image     (Seconds),        Left), Second_Str, Left, Right, '0');
        return Year_Str & '-' & Month_Str & '-' & Day_Str & " " &
                Hour_Str & ':' & Minute_Str & ':' & Second_Str;
    end To_String;


end Simple_Time;