<?php

/**
 * Top-level API and helper functions for the ESign module
 *
 * Copyright (C) 2013 OEMR 501c3 www.oemr.org
 *
 * LICENSE: This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 3
 * of the License, or (at your option) any later version.
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <http://opensource.org/licenses/gpl-license.php>;.
 *
 * @package OpenEMR
 * @author  Ken Chapple <ken@mi-squared.com>
 * @author  Medical Information Integration, LLC
 * @link    http://www.open-emr.org
 **/

namespace ESign;

require_once $GLOBALS['srcdir'] . '/ESign/ESign.php';
require_once $GLOBALS['srcdir'] . '/ESign/FactoryIF.php';
require_once $GLOBALS['srcdir'] . '/ESign/ConfigurationIF.php';
require_once $GLOBALS['srcdir'] . '/ESign/SignableIF.php';
require_once $GLOBALS['srcdir'] . '/ESign/Form/Factory.php';
require_once $GLOBALS['srcdir'] . '/ESign/Form/Configuration.php';
require_once $GLOBALS['srcdir'] . '/ESign/Encounter/Factory.php';
require_once $GLOBALS['srcdir'] . '/ESign/Encounter/Configuration.php';

class Api
{
    public function lockEncounters()
    {
        return $GLOBALS['lock_esign_all'];
    }

    public function formConfigToJson()
    {
        $configuration = new Form_Configuration();
        return $this->configToJson($configuration);
    }

    public function createFormESign($formId, $formDir, $encounterId)
    {
        $factory = new Form_Factory($formId, $formDir, $encounterId);
        $esign = $this->createESign($factory);
        return $esign;
    }

    public function encounterConfigToJson()
    {
        $configuration = new Encounter_Configuration();
        return $this->configToJson($configuration);
    }

    public function createEncounterESign($encounterId)
    {
        $factory = new Encounter_Factory($encounterId);
        $esign = $this->createESign($factory);
        return $esign;
    }

    public function createEncounterSignable($encounterId)
    {
        $signable = new Encounter_Signable($encounterId);
        return $signable;
    }

    public function createESign(FactoryIF $factory)
    {
        $configuration = $factory->createConfiguration();
        $signable = $factory->createSignable();
        $button = $factory->createButton();
        $log = $factory->createLog();
        $esign = new ESign($configuration, $signable, $button, $log);
        return $esign;
    }

    /**
     * This contains the configuration for the esign javascript object
     *
     * @return string
     */
    public function configToJson(ConfigurationIF $configuration)
    {
        $params = array(
            'baseUrl' => $configuration->getBaseUrl(),
            'logViewAction' => $configuration->getLogViewAction(),
            'formViewAction' => $configuration->getFormViewAction(),
            'formSubmitAction' => $configuration->getFormSubmitAction(),
            'module' => $configuration->getModule()
        );

        $json = json_encode($params);
        return $json;
    }

    public function sign(SignableIF $signable, $userId, $lock = false, $amendment = null)
    {
        try {
            $ret = $signable->sign($userId, $lock, $amendment);
            return $ret;
        } catch (\Exception $e) {
            error_log(errorLogEscape($e->getMessage()));
            return false;
        }
    }

    public function lock(SignableIF $signable, $userId, $amendment = null)
    {
        return $this->sign($signable, $userId, true, $amendment);
    }
}