<?php

namespace ProcessMaker\Models;

use Illuminate\Support\Arr;

use ProcessMaker\Nayra\Bpmn\Models\SignalEventDefinition as ModelsSignalEventDefinition;

use ProcessMaker\Nayra\Contracts\Bpmn\CatchEventInterface;

use ProcessMaker\Nayra\Contracts\Bpmn\TokenInterface;

/**

* SignalEventDefinition

*/

class SignalEventDefinition extends ModelsSignalEventDefinition

{

/**

* Get data contained in the event payload

*

* @param TokenInterface|null $token

*

* @return mixed

*/

public function getPayloadData(TokenInterface $token = null, CatchEventInterface $startEvent = null)

{

if ($token) {

$sourceEventDefinition = $token->getOwnerElement()->getEventDefinitions()->item(0);

$requestData = $token ? $token->getInstance()->getDataStore()->getData() : [];

$eventConfig = json_decode($sourceEventDefinition->getProperty('config') ?? null);

$payload = $eventConfig && $eventConfig->payload ? $eventConfig->payload[0] : null;

$payloadId = $payload && $payload->id ? $payload->id : null;

} else {

$requestData = [];

$payloadId = null;

}

if ($startEvent) {

$targetVariable = $startEvent->getProperty('config', false);

} else {

$targetVariable = null;

}

$data = [];

switch ($payloadId) {

case 'REQUEST_VARIABLE':

if ($payload->variable) {

$extractedData = Arr::get($requestData, $payload->variable);

Arr::set($data, $payload->variable, $extractedData);

}

break;

case 'EXPRESSION':

$expression = $payload->expression;

$formalExp = new FormalExpression();

$formalExp->setLanguage('FEEL');

$formalExp->setBody($expression);

$expressionResult = $formalExp($requestData);

Arr::set($data, $payload->variable, $expressionResult);

break;

case 'NONE':

$data = [];

break;

default:

$data = $requestData;

break;

}

if ($targetVariable) {

$data = [

$targetVariable => $data,

];

}

return $data;

}

}