<?php

class sambaLogonHours extends plugin
{

  var $sambaLogonHours = "";
  var $Matrix          = array();
  var $timezone        = 0; 
  var $config;

  function sambaLogonHours (&$config, $dn, $slh)
  {
    plugin::plugin($config,$dn);
    $this->sambaLogonHours = $slh;

    /* Get default timezone */
    $zone = timezone::get_default_timezone();
    $this->timezone = $zone['value'];

    /* Convert to bin */
    $tmp = '';
    for($i = 0 ; $i < strlen($slh) ; $i ++){
      $tmp .= str_pad(base_convert($slh[$i],16,2),4,'0',STR_PAD_LEFT);
    }
    $slh = $tmp;

    /* Set to default if value is empty or seams to be broken */
    if(strlen($slh) != 168){
      $slh = str_pad('',168 , "1");
    }

    /* Rework string, because it was stored in little endian */
    $new = '';
    for($i = 0 ; $i < 21 ; $i ++ ){
      $part         = strrev(substr($slh, $i * 8, 8));
      $byte['hi']   = substr($part,0,4);
      $byte['low']  = substr($part,4,4);
      $new .= $byte['hi'].$byte['low'];
    }

    /* Shift string to match given timezone settings */
    $shift_by = (168 + $this->timezone) % 168;
    for($i = 0 ; $i < $shift_by; $i ++){
      $new = $new[167].$new;
      $new = substr($new,0,168);
    }

    /* Create matrix */ 
    $this->Matrix = array();
    for($day = 0 ; $day < 7 ; $day ++ ){
      for($hour  = 0 ; $hour < 24 ; $hour ++){
        $bitpos  = ($day * 24 + $hour) % 168;
        $this->Matrix[$day][$hour] = $new[$bitpos]; 
      }
    }
  }

  function execute()
  {

    $week_days = array();
    $week_days[0]= _("Sunday");
    $week_days[1]= _("Monday");
    $week_days[2]= _("Tuesday");
    $week_days[3]= _("Wednesday");
    $week_days[4]= _("Thursday");
    $week_days[5]= _("Friday");
    $week_days[6]= _("Saturday");

    $hours = array();
    for($i = 0 ; $i <24 ; $i++ ){
      $hours[$i] = $i ;
    }
    $ui =get_userinfo();

    $smarty = get_smarty();
    $smarty->assign("Matrix",$this->Matrix);
    $smarty->assign("Days"  ,$week_days);
    $smarty->assign("Hours" ,$hours);
    return($smarty->fetch(get_template_path("sambaLogonHours.tpl",TRUE,dirname(__FILE__))));
  }

  function save_object()
  {
    /* Get userinfo */
    $ui = get_userinfo();
  
    /* Check if dialog was opened and if there were any changes */
    if(isset($_POST['sambaLogonHoursPosted'])){
      foreach($this->Matrix as $day_key => $days){
        foreach($days as $hour_key => $hour){
          if(isset($_POST['day_'.$day_key.'_'.$hour_key])){
            $this->Matrix[$day_key][$hour_key] = 1;
          }else{
            $this->Matrix[$day_key][$hour_key] = 0;
          }
        }
      }
    }
  }
  
  function save()
  {

    /* Convert Matrix to Hex */
    $slh = "";
    foreach($this->Matrix as $day_key => $days){
      foreach($days as $hour_key => $hour){
        $slh .= $hour;
      }
    }

    /* Shift string to match given timezone settings */
    $shift_by = (168 + ($this->timezone*(-1))) % 168;
    for($i = 0 ; $i < $shift_by; $i ++){
      $slh = $slh[167].$slh;
      $slh = substr($slh,0,168);
    }
 
    /* Rework string, because it was stored in little endian */
    $new = '';
    for($i = 0 ; $i < 21 ; $i ++ ){
      $part         = strrev(substr($slh, $i * 8, 8));
      $byte['hi']   = substr($part,0,4);
      $byte['low']  = substr($part,4,4);
      $new .= $byte['hi'].$byte['low'];
    }

    /* Convert to bin */
    $tmp = '';
    for($i = 0 ; $i < 21 ; $i ++){
      $tmp .= str_pad(base_convert(substr($new,$i*8,8),2,16),2,'0',STR_PAD_LEFT);
    }

    /* Create uppercase HEX chars */
    $ret = strtoupper( $tmp);
    
    /* All hours and days selected */
    if(substr_count($ret,'F') == 42){
      $ret = "";
    }

    return($ret);
  }
}
// vim:tabstop=2:expandtab:shiftwidth=2:filetype=php:syntax:ruler:
?>