<?php

// Require login
require_once 'plc_login.php';

// Get session and API handles
require_once 'plc_session.php';
global $plc, $api;

// Common functions
require_once 'plc_functions.php';
require_once 'details.php';
require_once 'table.php';
require_once 'toggle.php';
  
//plc_debug('POST',$_POST);

// if not a PI or admin then redirect to slice index
$has_privileges = plc_is_admin() || plc_is_pi();
if ( ! $has_privileges ) {
  drupal_set_error("Insufficient privilege to add a slice");
  header( "index.php" );
  return 0;
}

// find out which site the slice should be added to
// without site_id set in GET, we use the first site that this user is in
if (isset($_GET['site_id'])) {
  $site_id=intval($_GET['site_id']);
 } else if (isset ($_POST['site_id'])) {
  $site_id=intval($_POST['site_id']);
 } else {
  $site_id=plc_my_site_id();
 }

//////////////////// action
if ( $_POST['add-slice'] ) {
  // get post vars
  $url= $_POST['url'];
  $instantiation= $_POST['instantiation'];
  $name= $_POST['name'];
  $description= $_POST['description'];
  $person_ids = $_POST['person_ids'];

  $check=true;

  $sites=$api->GetSites(array('site_id'=>$site_id));
  if ( ! $sites) {
    drupal_set_error("Cannot find site_id $site_id");
    $check=false;
  }
  $site=$sites[0];
  $base=$site['login_base'] . '_';

  // validate input
  if( $name == $base ) {
    drupal_set_error("You must enter a name for your slice");
    $check=false;
  } else if (strpos($name,$base) != 0) {
    drupal_set_error("Slice name $name should begin with $base");
    $check=false;
  } else {
    // make sure slice name doesnt exist
    $slices = $api->GetSlices( array( $name ), array( "slice_id" ) );
    if ( count($slices) != 0) {
      drupal_set_error("Slice name $name already in use, please choose another");
      $check=false;
    }
  }
  
  if ( ($url == "http://") || ( $url=="" ) ) {
    drupal_set_error("You must enter a URL for your slice's info");
    $check=false;
  }
      
  if( $description == "" ) {
    drupal_set_error("Your must enter a description for you slice.");
    $check=false;
  }
  
  // if no errors then add
  if ( $check ) {
    $fields= array( "url" => $url, 
		    "instantiation" => $instantiation, 
		    "name" => $name, 
		    "description" => $description );
    // add it!
    $slice_id= $api->AddSlice( $fields );

    if ($slice_id > 0) {
      drupal_set_message ("Slice $slice_id created");
      if ($person_ids) {
        // Add people
	$success=true;
	$counter=0;
	foreach ($person_ids as $person_id) {
	  $person_id=intval($person_id);
	  if ($api->AddPersonToSlice($person_id,$slice_id) != 1) {
	    drupal_set_error("Could not add person $person_id in slice :" . $api->error());
	    $success=false;
	  } else {
	    $counter++;
	  }
	}
	if ($success) 
	  drupal_set_message ("Added $counter person(s)");
	else
	  drupal_set_error ("Could not add all selected persons, only $counter were added");
      }
      plc_redirect(l_slice($slice_id) );
    } else {
      drupal_set_error("Could not create slice $name " . $api->error() );
      $check=false;
    }
  }
 }

//////////////////// still here : either it's a blank form or something was wrong

// Print header
require_once 'plc_drupal.php';
include 'plc_header.php';

$sites=$api->GetSites(array($site_id));
$site=$sites[0];
$sitename=$site['name'];
if ( ! $_POST['name']) 
  $base= $site['login_base'] ."_";

// propose to add all 'reachable' persons 
$site_person_ids=$site['person_ids'];
$persons_filter=array("person_id"=>$site_person_ids,
                      "enabled"=>true);
$persons=$api->GetPersons($persons_filter,array('email','enabled','first_name','last_name','person_id'));

drupal_set_title('Create slice in site "' . $sitename . '"');

// defaults
$url = $_POST['url'];
if( !$url ) $url= "http://";

// check for errors and set error styles
if( $error['name'] )
  $name_error= " class='plc-warning'";
  
if( $error['url'] )
  $url_error= " class='plc-warning'";
  
if( $error['description'] )
  $desc_error= " class='plc-warning'";


// is there a need to consider several sites ?
$multiple_sites=false;
$site_columns=array('name','login_base','site_id');
if (plc_is_admin ()) {
  $multiple_sites=true;
  $filter=array('-SORT'=>'name');
 } else if (count (plc_my_site_ids()) > 1) {
  $multiple_sites=true;
  $filter=array('-SORT'=>'name','site_id'=>plc_my_site_ids());
 }

if ($multiple_sites) {
  print "<div id='create-slice-in-site'>";
  $other_sites=$api->GetSites($filter,$site_columns);
  $selectors=array();
  foreach ($other_sites as $other_site) {
    $selector=array('display'=>$other_site['name'],
		    'value'=>$other_site['site_id']);
    if ($other_site['site_id']==$site_id) $selector['selected']='selected';
    $selectors []= $selector;
  }

  $site_form = new  PleKitForm (l_slice_add(),array(),array('method'=>'get'));
  $site_form->start();
  print $site_form->label_html('site_id','Or choose some other site');
  print $site_form->select_html('site_id',$selectors,array('autosubmit'=>true,
							   'id'=>'create-slice-choose-site'));
  $site_form->end();
  print "</div>";
 }
		  
print <<< EOF
<div class='create-slice-instantiations'>
<p>You must provide a short description of the new slice 
as well as a link to a project website before creating it. 
<br/>
Do <span class='bold'>not</span> provide bogus information; if a complaint 
is lodged against your slice and your PlanetLab Operations Center
is unable to determine what the normal behavior of your slice is, 
your slice may be deleted to resolve the complaint.
</p>
<p><span class='bold'>NOTE</span>: All PlanetLab users are <span class='bold'>strongly</span>
 encouraged to join the PlanetLab 
<a href='https://lists.planet-lab.org/mailman/listinfo/users'>Users</a> 
mailing list. Most questions about running software on PlanetLab can be answered by 
posting to this list. 
<br/>Site administrators often use this list to post announcements about service outages. 
New software releases and available services are announced here as well.
</p>
</div>
EOF;

$toggle = new PlekitToggle ('create-slice-details','Slice Details',
			    array ('visible'=>get_arg('show_slice',true)));
$details = new PlekitDetails(TRUE);

$form_variables = array('site_id'=>plc_my_site_id());
$form = $details -> form_start("/db/slices/slice_add.php",$form_variables);
print $form->hidden_html("site_id",$site_id);

$toggle->start();
$details->start();

$running=count($site['slice_ids']);
$max=$site['max_slices'];
$allocated = " $running running / $max max";
if ($running >= $max) $allocated = plc_warning_html($allocated);
$details->th_td("Allocated slices",$allocated);
$details->th_td("Name",$name ? $name : $base, "name");
$details->th_td("URL",$url,"url");
$details->th_td("Description",$description,"description",
		array('input_type'=>'textarea',
		      'width'=>50,'height'=>5));
$selectors=array(array('display'=>"PLC",'value'=>'plc-instantiated'),
		 array('display'=>"Delegated",'value'=>'delegated'),
		 array('display'=>"Controller",'value'=>'nm-controller'),
		 array('display'=>"None",'value'=>'not-instantiated'));

$instantiation_select = $form->select_html ("instantiation", $selectors);
$details->th_td("Instantiation",$instantiation_select,"instantiation",
		array('input_type'=>'select', 'value'=>$instantiation));


$instantiation_text = <<< EOF
<div class='create-slice-instantiations'>
<p>There are four possible "instantiation" states for a slice.</p>
<ul>
<li> <span class='bold'>PLC</span> creates a slice with default settings. </li>
<li><span class='bold'>Delegated</span> creates a ticket to use on each node. </li>
<li><span class='bold'>Controller</span> creates a slice on all nodes to manipulate Delegated slices. </li>
<li><span class='bold'>None</span> allows you to reserve a slice name; you may instantiate the slice later.</li>
</ul>
</div>
EOF;

$details->tr($instantiation_text);

$details->end();
$toggle->end();

if ($persons) {
  $title = count($persons) . " people can be added in slice";
  $toggle=new PlekitToggle ('create-slice-persons',$title,
			  array('visible'=>get_arg('show_persons',true)));
  $toggle->start();
  
  $headers = array();
  $headers['email']='string';
  $headers['first']='string';
  $headers['last']='string';
  $headers['+']='none';
  $table = new PlekitTable ('persons_in_slice',$headers,0);
  $table->start();
  foreach ($persons as $person) {
    $table->row_start();
    $table->cell($person['email']);
    $table->cell($person['first_name']);
    $table->cell($person['last_name']);
    $table->cell ($form->checkbox_html('person_ids[]',$person['person_id']));
    $table->row_end();
  }
  $table->end();
  $toggle->end();
 }

$add_button = $form->submit_html ("add-slice","Create Slice");
print ("<div id='slice_add_button'> $add_button </div>");

$form->end();

// Print footer
include 'plc_footer.php';

?>