<?php declare(strict_types=1);
/*
 * This file is part of sebastian/complexity.
 *
 * (c) Sebastian Bergmann <sebastian@phpunit.de>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
namespace SebastianBergmann\Complexity;

use function assert;
use function is_array;
use PhpParser\Node;
use PhpParser\Node\Name;
use PhpParser\Node\Stmt;
use PhpParser\Node\Stmt\Class_;
use PhpParser\Node\Stmt\ClassMethod;
use PhpParser\Node\Stmt\Function_;
use PhpParser\Node\Stmt\Trait_;
use PhpParser\NodeTraverser;
use PhpParser\NodeVisitorAbstract;

final class ComplexityCalculatingVisitor extends NodeVisitorAbstract
{
    /**
     * @psalm-var list<Complexity>
     */
    private $result = [];

    /**
     * @var bool
     */
    private $shortCircuitTraversal;

    public function __construct(bool $shortCircuitTraversal)
    {
        $this->shortCircuitTraversal = $shortCircuitTraversal;
    }

    public function enterNode(Node $node): ?int
    {
        if (!$node instanceof ClassMethod && !$node instanceof Function_) {
            return null;
        }

        if ($node instanceof ClassMethod) {
            $name = $this->classMethodName($node);
        } else {
            $name = $this->functionName($node);
        }

        $statements = $node->getStmts();

        assert(is_array($statements));

        $this->result[] = new Complexity(
            $name,
            $this->cyclomaticComplexity($statements)
        );

        if ($this->shortCircuitTraversal) {
            return NodeTraverser::DONT_TRAVERSE_CHILDREN;
        }

        return null;
    }

    public function result(): ComplexityCollection
    {
        return ComplexityCollection::fromList(...$this->result);
    }

    /**
     * @param Stmt[] $statements
     */
    private function cyclomaticComplexity(array $statements): int
    {
        $traverser = new NodeTraverser;

        $cyclomaticComplexityCalculatingVisitor = new CyclomaticComplexityCalculatingVisitor;

        $traverser->addVisitor($cyclomaticComplexityCalculatingVisitor);

        /* @noinspection UnusedFunctionResultInspection */
        $traverser->traverse($statements);

        return $cyclomaticComplexityCalculatingVisitor->cyclomaticComplexity();
    }

    private function classMethodName(ClassMethod $node): string
    {
        $parent = $node->getAttribute('parent');

        assert($parent instanceof Class_ || $parent instanceof Trait_);
        assert(isset($parent->namespacedName));
        assert($parent->namespacedName instanceof Name);

        return $parent->namespacedName->toString() . '::' . $node->name->toString();
    }

    private function functionName(Function_ $node): string
    {
        assert(isset($node->namespacedName));
        assert($node->namespacedName instanceof Name);

        return $node->namespacedName->toString();
    }
}

• [F] ComplexityCalculatingVisitor.php
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• [F] CyclomaticComplexityCalculatingVisitor.php
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                        Request Example (guzzle)
                        

                        
                            
<?php
                            
 require_once('vendor/autoload.php');
                            
 $client = new \GuzzleHttp\Client();
                            
 $response = $client->request('POST', $base_url. 'v1/generate-token', [
                            
'headers' => [
                            
  'accept' => 'application/json',
                            
  'content-type' => 'application/json',
                            
 ],
                            
'form_params' => [
                            
  'client_id'     => '$client_id',
                            
  'secret_id'     => 'secret_id',
                            
  'env'           => 'env',
                            
  'merchant_id'   => 'merchant_id',
                            
 ],
                            
                            
]);
                            
echo $response->getBody();
                        
                    
                

                    
                        
**Response: SUCCESS (200 OK)**
                        
{
                        
 "message": {
                        
 "success": [
                        
  "Successfully token is generated"
                        
 ]
                        
},
                        
"data": {
                        
 "token":"eyJpdiI6InpkczhjTjhQdVhUL2lKQ0pSUUx6aUE9P
SIsInZhbHVlIjoiVGVBTVBDTXltbjNZcEIvdEJveGpTSno3TU5NRUtn
VkhCZ1pHTFNCUnZGQ2UxMnYxN202cEE1YVRDTEFsc0ZERExoTjdtL0dTL2x
oU3QzeUJJOExiMUx5T0w1L0llUXhTUkU1cWVLWEdEbEplb0dKNXcwbTNRM0
VxdkUwYzZuNFdtNkhMQ0pRZysyNWkvdzBxSlBoSVBSOGFTekNnR2RXNHVtc
G9lMGZOTmNCcm1hR3c5Sk9KTnB4Y3ltZDl6cm90MThrR21Ca3B1azc3bXRi
Q0J6SW96UVo1elNkU1ZqeE05bTcwWGp1MEUxWlJFdnNWTmpSbnVpeW92b2U
4dXZkUGgyb1VmK0luaGdyaFlsVTZlcVpVRnZlTG1DeFF6Ykk2T2h6Z3Jzbn
IyNHpNdHowSE5JdDR0Y0pZT20zUm1XYW8iLCJtYWMiOiJlY2M4NGE1OGUzYz
kzYzk0YzljNmVmNjE0YWI0ZDIwOGI3NDQ2YWEyY2ZhNzc0NzE4ZmY1ZmYyMz

                        IyZmQzNDY1IiwidGFnIjoiIn0=",
                        
},
                        
"type": "success"
                        
}
                    
                

                    
                        
**Response: ERROR (400 FAILED)**
                        
{
                        
 "message": {
                        
 "error": [
                        
  "Invalid credentials."
                        
 ]
                        
},
                        
"data": null,
                        
"type": "error"
                        
}