Router::dispatch() - Code Metrics - Inspection of "main working project" - alex-foleon/service-library-catalog-php - Measure and Improve Code Quality continuously with Scrutinizer

Passed

Branch — 001-basic (dcea18)

by Mr.

created 2020-12-24 15:15 UTC

Router::dispatch() B

↳ Parent: Router

Complexity

Conditions	9
Paths	16

Size

Total Lines	46
Code Lines	32

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	19
CRAP Score	13.6984

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
cc	9
eloc	32
c	1
b	0
f	0
nc	16
nop	0
dl	0
loc	46
ccs	19
cts	31
cp	0.6129
crap	13.6984
rs	8.0555

<?php

declare(strict_types=1);

namespace LibraryCatalog\Service\Http;

use DI\Container;
use FastRoute\Dispatcher;
use LibraryCatalog\Controller\V1\Author;
use LibraryCatalog\Controller\V1\Book;
use LibraryCatalog\Controller\V1\Error;
use LibraryCatalog\Controller\V1\Index;
use Psr\Http\Message\RequestInterface;
use Psr\Http\Message\ResponseInterface;

class Router
{
    /** @var Container */
    protected Container $container;
    /** @var Dispatcher */
    protected Dispatcher $dispatcher;
    /** @var string */
    protected string $uri;
    /** @var string */
    protected string $httpMethod;
    /** @var array */
    protected array $serverParams;

    /**
     * Router constructor.
     * @param Container $container
     * @param string $uri
     * @param string $httpMethod
     * @param array $serverParams
     */
    public function __construct(Container $container, string $uri, string $httpMethod, array $serverParams)
    {
        $this->container = $container;
        $this->uri = $uri;
        $this->httpMethod = $httpMethod;
        $this->serverParams = $serverParams;
    }

    /**
     * @return ResponseInterface
     * @throws \DI\DependencyException
     * @throws \DI\NotFoundException
     * @throws \LibraryCatalog\Exception\HttpUnauthorizedException
     */
    public function dispatch(): ResponseInterface
    {
        // Prepare request with extracted Auth.
        $psr17Factory = new \Nyholm\Psr7\Factory\Psr17Factory();
        $request = $psr17Factory->createRequest($this->httpMethod, $this->uri);
        if (isset($this->serverParams['HTTP_AUTHORIZATION'])) {
            // We could copy all headers but we take only what we want for speed optimization.
            $request = $request->withHeader('Authorization', $this->serverParams['HTTP_AUTHORIZATION']);
        }

        $routeInfo = $this->getDispatcher()->dispatch($this->httpMethod, $this->uri);
        switch ($routeInfo[0]) {
            case Dispatcher::NOT_FOUND:
                $response = (new Error($this->container, $request))->notFoundError($this->uri);
                break;
            case Dispatcher::METHOD_NOT_ALLOWED:
                $response = (new Error($this->container, $request))
                    ->error($this->uri, 405, 'Method not allowed');
                break;
            case Dispatcher::FOUND:
                try {
                    $response = $this->handle($routeInfo[1], $routeInfo[2], $request);
                } catch (\LibraryCatalog\Exception\HttpBadRequestException $e) {
                    $response = (new Error($this->container, $request))
                        ->badRequestError($this->uri, $e->getMessage());
                } catch (\LibraryCatalog\Exception\HttpUnauthorizedException $e) {
                    $response = (new Error($this->container, $request))
                        ->unauthorizedError($this->uri, $e->getMessage());
                } catch (\Exception $e) {
                    //@todo Log
                    //throw $e;
                    $response = (new Error($this->container, $request))->systemError($this->uri);
                } catch (\Throwable $e) {
                    //@todo Log
                    //throw $e;
                    $response = (new Error($this->container, $request))->systemError($this->uri);
                }
                break;
            default:
                // Undefined behavior.
                $response = (new Error($this->container, $request))
                    ->systemError($this->uri, 'Undefined behavior');
                break;
        }

        return $response;
    }

    /**
     * @param string $handler
     * @param array $params
     * @param RequestInterface $request
     * @return ResponseInterface
     * @throws \DI\DependencyException
     * @throws \DI\NotFoundException
     * @throws \LibraryCatalog\Controller\TransformerException
     * @throws \LibraryCatalog\Exception\HttpUnauthorizedException
     * @throws \Rakit\Validation\RuleQuashException
     */
    protected function handle(string $handler, array $params, RequestInterface $request): ResponseInterface
    {
        switch ($handler) {
            case 'index':
                $response = (new Index($this->container, $request))->indexAction();
                break;
            case 'healthcheck':
                $response = (new Index($this->container, $request))->healthcheckAction();
                break;

            case 'get_author_handler':
                $response = (new Author($this->container, $request))
                    ->getOneHandler($this->uri, $params['id']);
                break;
            case 'post_author_handler':
                $response = (new Author($this->container, $request))->postOneHandler(
                    $this->uri,
                    $this->container->get('HttpTransformer')
                        ->deserialize($this->container->get('RawInput')->get()),
                );
                break;

            case 'get_book_handler':
                $response = (new Book($this->container, $request))
                    ->getOneHandler($this->uri, $params['id']);
                break;
            case 'post_book_handler':
                $response = (new Book($this->container, $request))->postOneHandler(
                    $this->uri,
                    $this->container->get('HttpTransformer')
                        ->deserialize($this->container->get('RawInput')->get()),
                );
                break;
            default:
                // Undefined behavior.
                $response = (new Error($this->container, $request))
                    ->systemError($this->uri, 'Undefined route');
                break;
        }

        return $response;
    }

    /**
     * @return Dispatcher
     */
    protected function getDispatcher(): Dispatcher
    {
        if (!isset($this->dispatcher)) {
            $this->dispatcher = \FastRoute\simpleDispatcher(function (\FastRoute\RouteCollector $r) {
                $r->addRoute('GET', '/', 'index');

                $r->addRoute('GET', '/healthcheck', 'healthcheck');
                $r->addRoute('GET', '/api/v1/healthcheck', 'healthcheck');

                $r->addRoute('GET', '/author/{id:\d+}', 'get_author_handler');
                $r->addRoute('GET', '/api/v1/author/{id:\d+}', 'get_author_handler');
                $r->addRoute('POST', '/author', 'post_author_handler');
                $r->addRoute('POST', '/api/v1/author', 'post_author_handler');

                $r->addRoute('GET', '/book/{id:\d+}', 'get_book_handler');
                $r->addRoute('GET', '/api/v1/book/{id:\d+}', 'get_book_handler');
                $r->addRoute('POST', '/book', 'post_book_handler');
                $r->addRoute('POST', '/api/v1/book', 'post_book_handler');
            });
        }

        return $this->dispatcher;
    }
}


1		<?php
2
3		declare(strict_types=1);
4
5		namespace LibraryCatalog\Service\Http;
6
7		use DI\Container;
8		use FastRoute\Dispatcher;
9		use LibraryCatalog\Controller\V1\Author;
10		use LibraryCatalog\Controller\V1\Book;
11		use LibraryCatalog\Controller\V1\Error;
12		use LibraryCatalog\Controller\V1\Index;
13		use Psr\Http\Message\RequestInterface;
14		use Psr\Http\Message\ResponseInterface;
15
16		class Router
17		{
18		/** @var Container */
19		protected Container $container;
20		/** @var Dispatcher */
21		protected Dispatcher $dispatcher;
22		/** @var string */
23		protected string $uri;
24		/** @var string */
25		protected string $httpMethod;
26		/** @var array */
27		protected array $serverParams;
28
29		/**
30		* Router constructor.
31		* @param Container $container
32		* @param string $uri
33		* @param string $httpMethod
34		* @param array $serverParams
35		*/
36	17	public function __construct(Container $container, string $uri, string $httpMethod, array $serverParams)
37		{
38	17	$this->container = $container;
39	17	$this->uri = $uri;
40	17	$this->httpMethod = $httpMethod;
41	17	$this->serverParams = $serverParams;
42	17	}
43
44		/**
45		* @return ResponseInterface
46		* @throws \DI\DependencyException
47		* @throws \DI\NotFoundException
48		* @throws \LibraryCatalog\Exception\HttpUnauthorizedException
49		*/
50	17	public function dispatch(): ResponseInterface
51		{
52		// Prepare request with extracted Auth.
53	17	$psr17Factory = new \Nyholm\Psr7\Factory\Psr17Factory();
54	17	$request = $psr17Factory->createRequest($this->httpMethod, $this->uri);
55	17	if (isset($this->serverParams['HTTP_AUTHORIZATION'])) {
56		// We could copy all headers but we take only what we want for speed optimization.
57	14	$request = $request->withHeader('Authorization', $this->serverParams['HTTP_AUTHORIZATION']);
58		}
59
60	17	$routeInfo = $this->getDispatcher()->dispatch($this->httpMethod, $this->uri);
61	17	switch ($routeInfo[0]) {
62	17	case Dispatcher::NOT_FOUND:
63		$response = (new Error($this->container, $request))->notFoundError($this->uri);
64		break;
65	17	case Dispatcher::METHOD_NOT_ALLOWED:
66		$response = (new Error($this->container, $request))
67		->error($this->uri, 405, 'Method not allowed');
68		break;
69	17	case Dispatcher::FOUND:
70		try {
71	17	$response = $this->handle($routeInfo[1], $routeInfo[2], $request);
72	2	} catch (\LibraryCatalog\Exception\HttpBadRequestException $e) {
73	1	$response = (new Error($this->container, $request))
74	1	->badRequestError($this->uri, $e->getMessage());
75	1	} catch (\LibraryCatalog\Exception\HttpUnauthorizedException $e) {
76	1	$response = (new Error($this->container, $request))
77	1	->unauthorizedError($this->uri, $e->getMessage());
78		} catch (\Exception $e) {
79		//@todo Log
80		//throw $e;
81		$response = (new Error($this->container, $request))->systemError($this->uri);
82		} catch (\Throwable $e) {
83		//@todo Log
84		//throw $e;
85		$response = (new Error($this->container, $request))->systemError($this->uri);
86		}
87	17	break;
88		default:
89		// Undefined behavior.
90		$response = (new Error($this->container, $request))
91		->systemError($this->uri, 'Undefined behavior');
92		break;
93		}
94
95	17	return $response;
96		}
97
98		/**
99		* @param string $handler
100		* @param array $params
101		* @param RequestInterface $request
102		* @return ResponseInterface
103		* @throws \DI\DependencyException
104		* @throws \DI\NotFoundException
105		* @throws \LibraryCatalog\Controller\TransformerException
106		* @throws \LibraryCatalog\Exception\HttpUnauthorizedException
107		* @throws \Rakit\Validation\RuleQuashException
108		*/
109	17	protected function handle(string $handler, array $params, RequestInterface $request): ResponseInterface
110		{
111	17	switch ($handler) {
112	17	case 'index':
113	1	$response = (new Index($this->container, $request))->indexAction();
114	1	break;
115	16	case 'healthcheck':
116	1	$response = (new Index($this->container, $request))->healthcheckAction();
117	1	break;
118
119	15	case 'get_author_handler':
120	5	$response = (new Author($this->container, $request))
121	4	->getOneHandler($this->uri, $params['id']);
122	4	break;
123	10	case 'post_author_handler':
124	4	$response = (new Author($this->container, $request))->postOneHandler(
125	4	$this->uri,
126	4	$this->container->get('HttpTransformer')
127	4	->deserialize($this->container->get('RawInput')->get()),
128		);
129	3	break;
130
131	6	case 'get_book_handler':
132	3	$response = (new Book($this->container, $request))
133	3	->getOneHandler($this->uri, $params['id']);
134	3	break;
135	3	case 'post_book_handler':
136	3	$response = (new Book($this->container, $request))->postOneHandler(
137	3	$this->uri,
138	3	$this->container->get('HttpTransformer')
139	3	->deserialize($this->container->get('RawInput')->get()),
140		);
141	3	break;
142		default:
143		// Undefined behavior.
144		$response = (new Error($this->container, $request))
145		->systemError($this->uri, 'Undefined route');
146		break;
147		}
148
149	15	return $response;
150		}
151
152		/**
153		* @return Dispatcher
154		*/
155	17	protected function getDispatcher(): Dispatcher
156		{
157	17	if (!isset($this->dispatcher)) {
158	17	$this->dispatcher = \FastRoute\simpleDispatcher(function (\FastRoute\RouteCollector $r) {
159	17	$r->addRoute('GET', '/', 'index');
160
161	17	$r->addRoute('GET', '/healthcheck', 'healthcheck');
162	17	$r->addRoute('GET', '/api/v1/healthcheck', 'healthcheck');
163
164	17	$r->addRoute('GET', '/author/{id:\d+}', 'get_author_handler');
165	17	$r->addRoute('GET', '/api/v1/author/{id:\d+}', 'get_author_handler');
166	17	$r->addRoute('POST', '/author', 'post_author_handler');
167	17	$r->addRoute('POST', '/api/v1/author', 'post_author_handler');
168
169	17	$r->addRoute('GET', '/book/{id:\d+}', 'get_book_handler');
170	17	$r->addRoute('GET', '/api/v1/book/{id:\d+}', 'get_book_handler');
171	17	$r->addRoute('POST', '/book', 'post_book_handler');
172	17	$r->addRoute('POST', '/api/v1/book', 'post_book_handler');
173	17	});
174		}
175
176	17	return $this->dispatcher;
177		}
178		}
179

alex-foleon / service-library-catalog-php

Branch — 001-basic (dcea18)

Router::dispatch() B

Complexity

Size

Duplication

Code Coverage

Importance

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