config.php

<?php
require_once INCLUDE_DIR . 'class.plugin.php';

class MentionerPluginConfig extends PluginConfig
{

    // Provide compatibility function for versions of osTicket prior to
    // translation support (v1.9.4)
    function translate()
    {
        if (! method_exists('Plugin', 'translate')) {
            return array(
                function ($x) {
                    return $x;
                },
                function ($x, $y, $n) {
                    return $n != 1 ? $y : $x;
                }
            );
        }
        return Plugin::translate('mentioner');
    }

    /**
     * Build an Admin settings page.
     *
     * {@inheritdoc}
     *
     * @see PluginConfig::getOptions()
     */
    function getOptions()
    {
        list ($__, $_N) = self::translate();
        return array(
            'sbm' => new SectionBreakField([
                'label' => $__('Who can be @mentioned and added as a Collaborator?'),
                'hint' => $__('By default, all Agents and Users are available to be @mentioned')
            ]),
            'at-mentions' => new BooleanField([
                'label' => $__("Notice @mentions"),
                'hint' => $__('Enables adding @collaborators'),
                'default' => true
            ]),
            'agents-only' => new BooleanField([
                'label' => $__('Only allow @mentions OF Agents (staff)'),
                'hint' => $__('Add Agent collaborators only')
            ]),
            'sba' => new SectionBreakField([
                'label' => $__("Who can make mentions?"),
                'hint' => $__('Default is all Users/Staff/System via email/web/API/scp')
            ]),
            'by-agents-only' => new BooleanField([
                'label' => $__('Only allow #/@ mentions BY Agents'),
                'hint' => $__('Uncheck to allow Users to mention'),
                'default' => TRUE
            ]),
            'on' => new SectionBreakField([
                'label' => $__('Override Notifications'),
                'hint' => 'Ensure collaborators receive notifications about all Messages, if collaborator is Staff, they will receive notifications about Notes.'
            ]),
            'override-notifications' => new BooleanField([
                'label' => $__("Override Notifications"),
                'hint' => $__('Can be dangerous..')
            ]),
            'sbe' => new SectionBreakField([
                'label' => $__('Match email addresses?'),
                'hint' => $__('If you put domain.com here, we\'ll try and match @user as user@domain.com and lookup their account (also works for #mention).')
            ]),
            'email-domain' => new TextboxField([
                'label' => $__('Which domains to match emails for?'),
                'configuration' => array(
                    'html' => FALSE,
                    'size' => 40,
                    'length' => 256
                )
            ]),
            'sbh' => new SectionBreakField([
                'label' => $__('Use #mentions for ticket notifications'),
                'hint' => $__('Doesn\'t add as a collaborator, just notifies: "You were mentioned!".'),
                'default' => TRUE
            ]),
            'notice-hash' => new BooleanField([
                'label' => $__('Notice #Mentions'),
                'hint' => $__('Sends notices to staff mentioned with #name')
            ]),
            'notice-subject' => new TextboxField([
                'label' => $__('Notification Template: Subject'),
                'hint' => $__('Subject of the notfication message'),
                'default' => $__('You were mentioned in ticket #%{ticket.number}'),
                'configuration' => array(
                    'size' => 40,
                    'length' => 256
                )
            ]),
            'notice-template' => new TextareaField([
                'label' => $__('Notification Template: Message'),
                'hint' => $__('Use variables the same as Internal Note alert'),
                'default' => '
<h3><strong>Hi %{recipient.name.first},</strong></h3>
						
<p>%{poster.name.short} mentioned you in ticket <a href="%%7Bticket.staff_link%7D">#%{ticket.number}</a></p>
<table><tbody>
<tr> <td> <strong>From</strong>: </td> <td> %{ticket.name} </td> </tr>
<tr> <td> <strong>Subject</strong>: </td> <td> %{ticket.subject} </td> </tr> </tbody></table>
<br /> %{comments} <br /><br /><hr />
<p>To view/respond to the ticket, please <a href="%%7Bticket.staff_link%7D"><span style="color:rgb(84, 141, 212)">login</span></a> to the support ticket system<br />
<em style="font-size:small">Your friendly Customer Support System</em>
<br /><img src="cid:b56944cb4722cc5cda9d1e23a3ea7fbc" alt="Powered by osTicket" width="126" height="19" style="width:126px" />
'
            ]) // not sure if this src id will work for others.. might be better as a plaintext message template.
        
        );
    }
}