<?php
/* For licensing terms, see /license.txt */

/**
 *   @package chamilo.admin
 */

// resetting the course id
$cidReset = true;

// including some necessary files
require_once __DIR__.'/../inc/global.inc.php';

// setting the section (for the tabs)
$this_section = SECTION_PLATFORM_ADMIN;

$id = isset($_REQUEST['id']) ? (int) $_REQUEST['id'] : 0;
$relation = isset($_REQUEST['relation']) ? (int) $_REQUEST['relation'] : '';
$usergroup = new UserGroup();
$groupInfo = $usergroup->get($id);
$usergroup->protectScript($groupInfo);

// setting breadcrumbs
$interbreadcrumb[] = ['url' => 'index.php', 'name' => get_lang('Administration')];
$interbreadcrumb[] = ['url' => 'usergroups.php', 'name' => get_lang('Classes')];

// setting the name of the tool
$tool_name = get_lang('Subscribe users to class');

$htmlHeadXtra[] = '
<script>

$(function () {
    $("#relation").change(function() {
        window.location = "add_users_to_usergroup.php?id='.$id.'" +"&relation=" + $(this).val();
    });
});

function add_user_to_session (code, content) {
    document.getElementById("user_to_add").value = "";
    document.getElementById("ajax_list_users_single").innerHTML = "";
    destination = document.getElementById("elements_in");
    for (i=0;i<destination.length;i++) {
        if(destination.options[i].text == content) {
                return false;
        }
    }

    destination.options[destination.length] = new Option(content,code);
    destination.selectedIndex = -1;
    sortOptions(destination.options);
}
function remove_item(origin) {
    for(var i = 0 ; i<origin.options.length ; i++) {
        if(origin.options[i].selected) {
            origin.options[i]=null;
            i = i-1;
        }
    }
}

function validate_filter() {
    document.formulaire.form_sent.value=0;
    document.formulaire.submit();
}

function checked_in_no_group(checked) 
{
    $("#relation")
    .find("option")
    .attr("selected", false);

    $("#first_letter_user")
    .find("option")
    .attr("selected", false);
        document.formulaire.form_sent.value="2";
    document.formulaire.submit();
}

function change_select(val) {
    $("#user_with_any_group_id").attr("checked", false);
    document.formulaire.form_sent.value="2";
    document.formulaire.submit();
}

</script>';

$form_sent = 0;
$extra_field_list = UserManager::get_extra_fields();
$new_field_list = [];
if (is_array($extra_field_list)) {
    foreach ($extra_field_list as $extra_field) {
        //if is enabled to filter and is a "<select>" field type
        if ($extra_field[8] == 1 && $extra_field[2] == 4) {
            $new_field_list[] = [
                'name' => $extra_field[3],
                'variable' => $extra_field[1], 'data' => $extra_field[9],
            ];
        }
    }
}

if (empty($id)) {
    api_not_allowed(true);
}

$first_letter_user = '';

if (isset($_POST['form_sent']) && $_POST['form_sent']) {
    $form_sent = $_POST['form_sent'];
    $elements_posted = isset($_POST['elements_in_name']) ? $_POST['elements_in_name'] : null;
    $first_letter_user = $_POST['firstLetterUser'];

    if (!is_array($elements_posted)) {
        $elements_posted = [];
    }

    // If "social group" you need to select a role
    if ($groupInfo['group_type'] == 1 && empty($relation)) {
        Display::addFlash(Display::return_message(get_lang('Select role'), 'warning'));
        header('Location: '.api_get_self().'?id='.$id);
        exit;
    }

    if ($form_sent == 1) {
        Display::addFlash(Display::return_message(get_lang('Update successful')));
        // Added a parameter to send emails when registering a user
        $usergroup->subscribe_users_to_usergroup(
            $id,
            $elements_posted,
            true,
            $relation
        );
        header('Location: usergroups.php');
        exit;
    }
}

if (isset($_GET['action']) && $_GET['action'] == 'export') {
    $users = $usergroup->getUserListByUserGroup($id);
    if (!empty($users)) {
        $data = [
            ['UserName', 'ClassName'],
        ];
        foreach ($users as $user) {
            $data[] = [$user['username'], $groupInfo['name']];
        }
        $filename = 'export_user_class_'.api_get_local_time();
        Export::arrayToCsv($data, $filename);
        exit;
    }
}

// Filter by Extra Fields
$use_extra_fields = false;
if (is_array($extra_field_list)) {
    if (is_array($new_field_list) && count($new_field_list) > 0) {
        foreach ($new_field_list as $new_field) {
            $varname = 'field_'.$new_field['variable'];
            if (UserManager::is_extra_field_available($new_field['variable'])) {
                if (isset($_POST[$varname]) && $_POST[$varname] != '0') {
                    $use_extra_fields = true;
                    $extra_field_result[] = UserManager::get_extra_user_data_by_value(
                        $new_field['variable'],
                        $_POST[$varname]
                    );
                }
            }
        }
    }
}

if ($use_extra_fields) {
    $final_result = [];
    if (count($extra_field_result) > 1) {
        for ($i = 0; $i < count($extra_field_result) - 1; $i++) {
            if (is_array($extra_field_result[$i + 1])) {
                $final_result = array_intersect($extra_field_result[$i], $extra_field_result[$i + 1]);
            }
        }
    } else {
        $final_result = $extra_field_result[0];
    }
}

// Filters
$filters = [
    ['type' => 'text', 'name' => 'username', 'label' => get_lang('Username')],
    ['type' => 'text', 'name' => 'firstname', 'label' => get_lang('First name')],
    ['type' => 'text', 'name' => 'lastname', 'label' => get_lang('Last name')],
    ['type' => 'text', 'name' => 'official_code', 'label' => get_lang('Code')],
    ['type' => 'text', 'name' => 'email', 'label' => get_lang('e-mail')],
];

$searchForm = new FormValidator('search', 'get', api_get_self().'?id='.$id);
$searchForm->addHeader(get_lang('Advanced search'));
$renderer = &$searchForm->defaultRenderer();

$searchForm->addElement('hidden', 'id', $id);
foreach ($filters as $param) {
    $searchForm->addElement($param['type'], $param['name'], $param['label']);
}
$searchForm->addButtonSearch();

$filterData = [];
if ($searchForm->validate()) {
    $filterData = $searchForm->getSubmitValues();
}

$data = $usergroup->get($id);
$list_in = $usergroup->getUsersByUsergroupAndRelation($id, $relation);
$list_all = $usergroup->get_users_by_usergroup();

$order = ['lastname'];
if (api_is_western_name_order()) {
    $order = ['firstname'];
}

$orderListByOfficialCode = api_get_setting('order_user_list_by_official_code');
if ($orderListByOfficialCode === 'true') {
    $order = ['official_code', 'lastname'];
}

$conditions = [];
if (!empty($first_letter_user)) {
    $conditions['lastname'] = $first_letter_user;
}

if (!empty($filters) && !empty($filterData)) {
    foreach ($filters as $filter) {
        if (isset($filter['name']) && isset($filterData[$filter['name']])) {
            $value = $filterData[$filter['name']];
            if (!empty($value)) {
                $conditions[$filter['name']] = $value;
            }
        }
    }
}

$elements_not_in = $elements_in = [];
$complete_user_list = UserManager::getUserListLike([], $order, false, 'AND');

if (!empty($complete_user_list)) {
    foreach ($complete_user_list as $item) {
        if ($use_extra_fields) {
            if (!in_array($item['user_id'], $final_result)) {
                continue;
            }
        }

        // Avoid anonymous users
        if ($item['status'] == 6) {
            continue;
        }

        if (in_array($item['user_id'], $list_in)) {
            $officialCode = !empty($item['official_code']) ? ' - '.$item['official_code'] : null;
            $person_name = api_get_person_name(
                $item['firstname'],
                $item['lastname']
            ).' ('.$item['username'].') '.$officialCode;

            $orderListByOfficialCode = api_get_setting('order_user_list_by_official_code');
            if ($orderListByOfficialCode === 'true') {
                $officialCode = !empty($item['official_code']) ? $item['official_code'].' - ' : '? - ';
                $person_name = $officialCode.api_get_person_name(
                    $item['firstname'],
                    $item['lastname']
                ).' ('.$item['username'].') ';
            }

            $elements_in[$item['user_id']] = $person_name;
        }
    }
}

$user_with_any_group = isset($_REQUEST['user_with_any_group']) && !empty($_REQUEST['user_with_any_group']) ? true : false;
if ($user_with_any_group) {
    $user_list = UserManager::getUserListLike($conditions, $order, true, 'AND');
    $new_user_list = [];
    foreach ($user_list as $item) {
        if (!in_array($item['user_id'], $list_all)) {
            $new_user_list[] = $item;
        }
    }
    $user_list = $new_user_list;
} else {
    $user_list = UserManager::getUserListLike($conditions, $order, true, 'AND');
}

if (!empty($user_list)) {
    foreach ($user_list as $item) {
        if ($use_extra_fields) {
            if (!in_array($item['user_id'], $final_result)) {
                continue;
            }
        }

        // Avoid anonymous users
        if ($item['status'] == ANONYMOUS) {
            continue;
        }

        $officialCode = !empty($item['official_code']) ? ' - '.$item['official_code'] : null;
        $person_name = api_get_person_name(
            $item['firstname'],
            $item['lastname']
        ).' ('.$item['username'].') '.$officialCode;

        $orderListByOfficialCode = api_get_setting('order_user_list_by_official_code');
        if ($orderListByOfficialCode === 'true') {
            $officialCode = !empty($item['official_code']) ? $item['official_code'].' - ' : '? - ';
            $person_name = $officialCode.api_get_person_name(
                $item['firstname'],
                $item['lastname']
            ).' ('.$item['username'].') ';
        }

        if (!in_array($item['user_id'], $list_in)) {
            $elements_not_in[$item['user_id']] = $person_name;
        }
    }
}

Display::display_header($tool_name);

echo '<div class="actions">';
echo '<a href="usergroups.php">'.
    Display::return_icon('back.png', get_lang('Back'), [], ICON_SIZE_MEDIUM).'</a>';

echo Display::url(get_lang('Advanced search'), '#', ['class' => 'advanced_options', 'id' => 'advanced_search']);

echo '<a href="usergroup_user_import.php">'.
    Display::return_icon('import_csv.png', get_lang('Import'), [], ICON_SIZE_MEDIUM).'</a>';

echo '<a href="'.api_get_self().'?id='.$id.'&action=export">'.
    Display::return_icon('export_csv.png', get_lang('Export'), [], ICON_SIZE_MEDIUM).'</a>';
echo '</div>';

echo '<div id="advanced_search_options" style="display:none">';
$searchForm->display();
echo '</div>';
?>
<form name="formulaire" method="post" action="<?php echo api_get_self(); ?>?id=<?php echo $id; if (!empty($_GET['add'])) {
    echo '&add=true';
} ?>" style="margin:0px;">
<?php
echo '<legend>'.$tool_name.': '.$data['name'].'</legend>';

if (is_array($extra_field_list)) {
    if (is_array($new_field_list) && count($new_field_list) > 0) {
        echo '<h3>'.get_lang('Filter by user').'</h3>';
        foreach ($new_field_list as $new_field) {
            echo $new_field['name'];
            $varname = 'field_'.$new_field['variable'];
            echo '&nbsp;<select name="'.$varname.'">';
            echo '<option value="0">--'.get_lang('Select').'--</option>';
            foreach ($new_field['data'] as $option) {
                $checked = '';
                if (isset($_POST[$varname])) {
                    if ($_POST[$varname] == $option[1]) {
                        $checked = 'selected="true"';
                    }
                }
                echo '<option value="'.$option[1].'" '.$checked.'>'.$option[1].'</option>';
            }
            echo '</select>';
            echo '&nbsp;&nbsp;';
        }
        echo '<input type="button" value="'.get_lang('Filter').'" onclick="validate_filter()" />';
        echo '<br /><br />';
    }
}

echo Display::input('hidden', 'id', $id);
echo Display::input('hidden', 'form_sent', '1');
echo Display::input('hidden', 'add_type', null);

?>
<div class="row">
    <div class="col-md-5">
        <?php if ($data['group_type'] == UserGroup::SOCIAL_CLASS) {
    ?>
        <select name="relation" id="relation">
            <option value=""><?php echo get_lang('Relation type selection'); ?></option>
            <option value="<?php echo GROUP_USER_PERMISSION_ADMIN; ?>" <?php echo (isset($relation) && $relation == GROUP_USER_PERMISSION_ADMIN) ? 'selected=selected' : ''; ?> >
                <?php echo get_lang('Admin'); ?></option>
            <option value="<?php echo GROUP_USER_PERMISSION_READER; ?>" <?php echo (isset($relation) && $relation == GROUP_USER_PERMISSION_READER) ? 'selected=selected' : ''; ?> >
                <?php echo get_lang('Reader'); ?></option>
            <option value="<?php echo GROUP_USER_PERMISSION_PENDING_INVITATION; ?>" <?php echo (isset($relation) && $relation == GROUP_USER_PERMISSION_PENDING_INVITATION) ? 'selected=selected' : ''; ?> >
                <?php echo get_lang('Pending invitation'); ?></option>
            <option value="<?php echo GROUP_USER_PERMISSION_MODERATOR; ?>" <?php echo (isset($relation) && $relation == GROUP_USER_PERMISSION_MODERATOR) ? 'selected=selected' : ''; ?> >
                <?php echo get_lang('Moderator'); ?></option>
            <option value="<?php echo GROUP_USER_PERMISSION_HRM; ?>" <?php echo (isset($relation) && $relation == GROUP_USER_PERMISSION_HRM) ? 'selected=selected' : ''; ?> >
                <?php echo get_lang('Human Resources Manager'); ?></option>
        </select>
        <?php
} ?>

        <div class="multiple_select_header">
        <b><?php echo get_lang('Users on platform'); ?> :</b>
        <?php echo get_lang('First letter (last name)'); ?> :
        <select id="first_letter_user" name="firstLetterUser" onchange="change_select();">
            <option value = "%">--</option>
            <?php
            echo Display :: get_alphabet_options($first_letter_user);
            ?>
        </select>
        </div>
    <?php
    echo Display::select(
        'elements_not_in_name',
        $elements_not_in,
        '',
        [
            'class' => 'form-control',
            'multiple' => 'multiple',
            'id' => 'elements_not_in',
            'size' => '15px',
        ],
        false
    );
    ?>
    <br />
      <label class="control-label">
          <input type="checkbox" <?php if ($user_with_any_group) {
        echo 'checked="checked"';
    } ?> onchange="checked_in_no_group(this.checked);" name="user_with_any_group" id="user_with_any_group_id">
          <?php echo get_lang('Users registered in any group'); ?>
      </label>
    </div>
    <div class="col-md-2">
        <div style="padding-top:54px;width:auto;text-align: center;">
        <button class="btn btn-default" type="button" onclick="moveItem(document.getElementById('elements_not_in'), document.getElementById('elements_in'))" onclick="moveItem(document.getElementById('elements_not_in'), document.getElementById('elements_in'))">
            <em class="fa fa-arrow-right"></em>
        </button>
        <br /><br />
        <button class="btn btn-default" type="button" onclick="moveItem(document.getElementById('elements_in'), document.getElementById('elements_not_in'))" onclick="moveItem(document.getElementById('elements_in'), document.getElementById('elements_not_in'))">
            <em class="fa fa-arrow-left"></em>
        </button>
        </div>
    </div>
    <div class="col-md-5">
        <div class="multiple_select_header">
            <b><?php echo get_lang('Users in group'); ?> :</b>
        </div>
    <?php
        echo Display::select(
            'elements_in_name[]',
            $elements_in,
            '',
            [
                'class' => 'form-control',
                'multiple' => 'multiple',
                'id' => 'elements_in',
                'size' => '15px',
            ],
            false
        );
        unset($sessionUsersList);
    ?>
    </div>
</div>
<?php
    echo '<button class="btn btn-primary" type="button" value="" onclick="valide()" ><em class="fa fa-check"></em>'.
        get_lang('Subscribe users to class').'</button>';
?>
</form>
<script>
function moveItem(origin , destination) {
    for(var i = 0 ; i<origin.options.length ; i++) {
        if(origin.options[i].selected) {
            destination.options[destination.length] = new Option(origin.options[i].text,origin.options[i].value);
            origin.options[i]=null;
            i = i-1;
        }
    }
    destination.selectedIndex = -1;
    sortOptions(destination.options);
}

function sortOptions(options) {
    newOptions = new Array();
    for (i = 0 ; i<options.length ; i++)
        newOptions[i] = options[i];

    newOptions = newOptions.sort(mysort);
    options.length = 0;
    for (i = 0 ; i < newOptions.length ; i++)
        options[i] = newOptions[i];
}

function mysort(a, b) {
    if(a.text.toLowerCase() > b.text.toLowerCase()){
        return 1;
    }
    if(a.text.toLowerCase() < b.text.toLowerCase()){
        return -1;
    }
    return 0;
}

function valide() {
    var options = document.getElementById('elements_in').options;
    for (i = 0 ; i<options.length ; i++)
        options[i].selected = true;
    document.forms.formulaire.submit();
}
</script>
<?php
Display::display_footer();
