<?php
if (!defined('INCLUDE_DIR')) die('Fatal error');

class CaldavPlugin extends Plugin {
    public $config_class = 'CaldavConfig';

    public function getConfigurationForm() {
        return array(
            'calendar_url' => new TextboxField(array(
                'label' => 'Calendar URL',
                'configuration' => array(
                    'size' => 60,
                    'length' => 255
                ),
                'required' => true
            )),
            'app_token' => new TextboxField(array(
                'label' => 'App Token',
                'configuration' => array(
                    'size' => 60,
                    'length' => 255
                ),
                'required' => true,
                'widget' => 'Password'
            )),
        );
    }

    public function getAgentActions() {
        return array(
            'create_calendar_entry' => array(
                'label' => 'Create Calendar Entry',
                'action' => 'createCalendarEntry'
            )
        );
    }

    public function createCalendarEntry($ticket) {
        // Implementation will go here
    }
}

class CaldavConfig extends PluginConfig {
    public function getOptions() {
        return array(
            'calendar_url' => $this->getConfig('calendar_url'),
            'app_token' => $this->getConfig('app_token')
        );
    }

    public function pre_save($config, &$errors) {
        if (!$config['calendar_url']) {
            $errors['calendar_url'] = 'Calendar URL is required';
        }
        if (!$config['app_token']) {
            $errors['app_token'] = 'App Token is required';
        }
        return true;
    }
}
?>