<?php
$login_required = TRUE;
include "includes/page.php";

require_once "$path_prefix/api/Tag/Tag.php";
require_once "$path_prefix/ext/SBMicroContent/SBMicroContent.php";
require_once "$path_prefix/ext/Group/Group.php";
require_once "$path_prefix/api/Invitation/Invitation.php";
require_once "$path_prefix/ext/Input_filter/Input_filter.php";

function setup_module($column, $module, $obj) {
    global $login_uid, $entered_people;

    switch ($column) {
    case 'middle':
        $obj->mode = PUB;
        $obj->uid = $login_uid;
        $obj->block_type = 'media_management';
        if ($module=='InvitationStatusModule') {
            $groups = Group::get_user_groups($login_uid, FALSE, 'ALL');
            $user_groups = array();
            for ( $i=0; $i<count($groups);$i++ ) {
                if ( $groups[$i]['access'] == 'owner' ) {
                    $user_groups[] = $groups[$i]['gid']; 
                }
            }
            $obj->collection_id_array = $user_groups;
        } else if ($module=='GroupInvitationModule') {
            $obj->entered_people = $entered_people;
        }
        break;
    }
}

// array of first names / last names / email addresses to be displayed if there was an error
$entered_people = array();
$array_msg = array();
if($_POST['do']=='SendInvite') 
{
  filter_all_post($_POST);  
  $error = FALSE;
  $msg = array();
  // check if groups are there
  if ( empty( $_POST['groups'] ) ) 
  {
    $error = TRUE;
    $array_msg[]= "Please select group";
  }
  //check email and first name
  $empty = TRUE;
  foreach ($_POST['email'] as $i => $email) 
  {
    $email = trim($email);
    $included = (@$_POST['included'][$i] == "on");
    $fname = trim($_POST['firstname'][$i]);
    $lname = trim($_POST['lastname'][$i]);
    if (!$included || (!$email && !$fname && !$lname))
        continue;

    $e = NULL;

    if (empty($email)) {
        $e = "Please enter an email address.";
    }
    else if ($email == $_SESSION['user']['email']) {
          $e = "You can't invite yourself";
    }
    else if (!validate_email($email)) {
        $e = "Please enter a valid email address";
    }
    else if (empty($fname)) {
        $e = "Please enter a first name for this person";
    }

    if (!empty($email) || !empty($fname) || !empty($lname)) {
        $empty = FALSE;
    }

    $entered_people[] = array(
        'email' => $email,
        'firstname' => $fname,
        'lastname' => $lname,
        'error' => $e,
        );

    if ($e) {
        $error = TRUE;
        $array_msg[] = $e;
    }
  }

  if ($empty) {
      $error = TRUE;
      $array_msg[] = "Please enter at least one person to invite";
  }
  
  $subject = GROUP_INVITE_SUBJECT;
  $subject = str_replace("%first_name%", $_SESSION['user']['first_name'], $subject);
  $subject = str_replace("%last_name%", $_SESSION['user']['last_name'], $subject);
  $message = trim($_POST['message']);
  
  if ( empty( $message ) ) 
  {
    $error = TRUE;
    $array_msg[] = "Message can't be left blank";
  }
  // if no error send the invitation
  if ( !$error ) 
  {
   /* for ( $i = 0; $i < count($_POST['groups']); $i++ ) 
    {*/
      foreach ($entered_people as $person)
      {
        if (!$person['email']) continue;
        
        $gid = (int)$_POST['groups'];
        $group = new Group();
        $group->load($gid);

        $inv = new Invitation();
        $inv->user_id =  $_SESSION['user']['id'];
        $inv->username = $_SESSION['user']['name'];
        // for invitation not for any group invitation collection id is -1  
        //$inv->inv_collection_id = $_POST['groups'][$i];
        $inv->inv_collection_id = $gid;
        $inv->inv_group_name = $group->title;
        $inv->inv_status = PENDING;
        $inv->register_url = $base_url."/register.php?GInvID=".$inv->inv_id;
        $inv->accept_url = $base_url."/login.php?action=accept&GInvID=".$inv->inv_id;
        $inv->inv_user_id = NULL;
        $inv->inv_username = NULL;
        $inv->inv_user_first_name = $person['firstname'];
        $inv->inv_user_last_name = $person['lastname'];
        $inv->inv_email = $person['email'];
        $inv->inv_summary = "Invitation from $user->first_name $user->last_name to join PeopleAggregator";
        $inv->inv_message = $message;
      
        try {
            $inv->send();
            $success = 1;
            $array_msg[] = "Successfully sent invitation to ".$person['email'].".";
        }
        catch (PAException $e) {
            $array_msg[] = "$e->message";
            $error = TRUE;
        }
       
      }//..foreach
  } //..$error if

  if ( count($array_msg)>0 ) {
      $msg = "";
      for ($i=0;$i<count($array_msg);$i++) {
          $msg .= '<br>'.$array_msg[$i];
      }
  } else {
    $msg = "No invitations sent.";
  }

  if (!$error) {
      $entered_people = array(); // don't need to show them all again if invitations have been sent.
  }
  
}//..do invite


$page = new PageRenderer("setup_module", PAGE_GROUP_INVITE, "Invite people into a group", "groups.tpl",'header.tpl',PRI,HOMEPAGE,$network_info);

if (!empty($msg)) {
  $msg_tpl = & new Template(CURRENT_THEME_FSPATH."/display_message.tpl");
  $msg_tpl->set('message', $msg);
  $page->add_module("middle", "top", $msg_tpl->fetch());
}

if ($show_options) {
  $page->header->show_options = TRUE;
}

echo $page->render();

?>