Scope::validParam() - Code Metrics - Inspection of "optimizing reflection methods" - flipbox/transform - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — develop ( a083a7...ae7e37 )

by Nate

created 2018-04-24 18:55 UTC

Scope::validParam() A

↳ Parent: Scope

Complexity

Conditions	4
Paths	4

Size

Total Lines	18
Code Lines	14

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	0
CRAP Score	20

Importance

Changes

Metric	Value
dl	0
loc	18
ccs	0
cts	18
cp	0
rs	9.2
c	0
b	0
f	0
cc	4
eloc	14
nc	4
nop	4
crap	20

<?php

/**
 * @author    Flipbox Factory
 * @copyright Copyright (c) 2017, Flipbox Digital
 * @link      https://github.com/flipbox/transform/releases/latest
 * @license   https://github.com/flipbox/transform/blob/master/LICENSE
 */

namespace Flipbox\Transform;

use Flipbox\Transform\Helpers\TransformerHelper;
use Flipbox\Transform\Transformers\TransformerInterface;
use InvalidArgumentException;
use ReflectionMethod;
use ReflectionParameter;

/**
 * @author Flipbox Factory <[email protected]>
 * @since 1.0.0
 */
class Scope
{
    const IGNORE_EXTRA_PARAMS = ['data', 'scope', 'identifier'];

    /**
     * @var string
     */
    protected $scopeIdentifier;

    /**
     * @var Transform
     */
    protected $transform;

    /**
     * @var array
     */
    protected $parentScopes = [];

    /**
     * Scope constructor.
     * @param Transform $transform
     * @param string|null $scopeIdentifier
     * @param array $parentScopes
     */
    public function __construct(
        Transform $transform,
        string $scopeIdentifier = null,
        array $parentScopes = []
    ) {
        $this->transform = $transform;
        $this->scopeIdentifier = $scopeIdentifier;
        $this->parentScopes = $parentScopes;
    }

    /**
     * @return Transform
     */
    public function getTransform(): Transform
    {
        return $this->transform;
    }

    /**
     * @param $key
     * @return ParamBag
     */
    public function getParams(string $key = null): ParamBag
    {
        return $this->getTransform()->getParams(
            $this->getIdentifier($key)
        );
    }

    /**
     * Get the current identifier.
     *
     * @return string|null
     */
    public function getScopeIdentifier()
    {
        return $this->scopeIdentifier;
    }

    /**
     * Get the unique identifier for this scope.
     *
     * @param string $appendIdentifier
     *
     * @return string
     */
    public function getIdentifier(string $appendIdentifier = null): string
    {
        return implode(
            '.',
            array_filter(array_merge(
                $this->parentScopes,
                [
                    $this->scopeIdentifier,
                    $appendIdentifier
                ]
            ))
        );
    }

    /**
     * Getter for parentScopes.
     *
     * @return array
     */
    public function getParentScopes(): array
    {
        return $this->parentScopes;
    }

    /**
     * Is Requested.
     *
     * Check if - in relation to the current scope - this specific segment is allowed.
     * That means, if a.b.c is requested and the current scope is a.b, then c is allowed. If the current
     * scope is a then c is not allowed, even if it is there and potentially transformable.
     *
     * @internal
     *
     * @param string $checkScopeSegment
     *
     * @return bool Returns the new number of elements in the array.
     */
    public function isRequested($checkScopeSegment): bool
    {
        return in_array(
            $this->scopeString($checkScopeSegment),
            $this->transform->getIncludes()
        );
    }

    /**
     * Is Excluded.
     *
     * Check if - in relation to the current scope - this specific segment should
     * be excluded. That means, if a.b.c is excluded and the current scope is a.b,
     * then c will not be allowed in the transformation whether it appears in
     * the list of default or available, requested includes.
     *
     * @internal
     *
     * @param string $checkScopeSegment
     *
     * @return bool
     */
    public function isExcluded($checkScopeSegment): bool
    {
        return in_array(
            $this->scopeString($checkScopeSegment),
            $this->transform->getExcludes()
        );
    }

    /**
     * @param TransformerInterface|callable $transformer
     * @param mixed $data
     * @param array $extra
     * @return mixed
     */
    public function transform(callable $transformer, $data, array $extra = [])
    {
        return $this->parseValue($transformer, $data, null, $extra);
    }

    /**
     * @param callable $transformer
     * @param string $key
     * @return bool
     */
    public function includeValue(callable $transformer, string $key): bool
    {
        // Ignore optional (that have not been explicitly requested)
        if ($transformer instanceof TransformerInterface &&
            in_array($key, $transformer->getIncludes(), true) &&
            !$this->isRequested($key)
        ) {
            return false;
        }

        // Ignore excludes
        if ($this->isExcluded($key)) {
            return false;
        }

        return true;
    }

    /**
     * @param $val
     * @param $data
     * @param string|null $key
     * @param array $extra
     * @return mixed
     */
    public function parseValue($val, $data, string $key = null, array $extra = [])
    {
        if (TransformerHelper::isTransformer($val)) {
            $args = [$data, $this, $key];

            if (!empty($extra)) {
                $args = array_merge(
                    $args,
                    $this->validParams($val, $extra)
                );
            }

            return call_user_func_array($val, $args);
        }

        return $val;
    }

    /**
     * @param $transformer
     * @param array $params
     * @return array
     */
    private function validParams($transformer, array $params): array
    {
        if (!is_object($transformer)) {
            return $params;
        }

        $method = new ReflectionMethod($transformer, '__invoke');

        $args = $missing = [];
        foreach ($method->getParameters() as $param) {
            $this->validParam($param, $params, $args, $missing);
        }

        if (!empty($missing)) {
            throw new InvalidArgumentException(sprintf(
                'Missing required parameters "%s".',
                implode(', ', $missing)
            ));
        }

        return $args;
    }

    /**
     * @param ReflectionParameter $param
     * @param array $params
     * @param array $args
     * @param array $missing
     */
    private function validParam(
        ReflectionParameter $param,
        array $params,
        array &$args,
        array &$missing
    ) {
        $name = $param->name;
        if (true === in_array($name, self::IGNORE_EXTRA_PARAMS, true)) {
            return;
        }
        if (array_key_exists($name, $params)) {
            $args[] = $this->argType($param, $params[$name]);
        } elseif ($param->isDefaultValueAvailable()) {
            $args[] = $param->getDefaultValue();
        } else {
            $missing[] = $name;
        }
    }

    /**
     * @param ReflectionParameter $param
     * @param $value
     * @return mixed
     */
    private function argType(
        ReflectionParameter $param,
        $value
    ) {
        if (!$param->hasType()) {
            return $value;
        }

        if ($param->isArray()) {
            return (array)$value;
        }

        if ($param->isCallable() && is_callable($value)) {
            return $value;
        }

        if (!is_array($value)) {
            return $value;
        }

        throw new InvalidArgumentException(sprintf(
            'Invalid data received for parameter "%s".',
            $param->name
        ));
    }

    /**
     * @param string $identifier
     * @return Scope
     */
    public function childScope(string $identifier): Scope
    {
        $parentScopes = $this->getParentScopes();
        $parentScopes[] = $this->getScopeIdentifier();

        return new static(
            $this->getTransform(),
            $identifier,
            $parentScopes
        );
    }

    /**
     * Check, if this is the root scope.
     *
     * @return bool
     */
    protected function isRootScope(): bool
    {
        return empty($this->parentScopes);
    }

    /**
     * Filter the provided data with the requested filter fields for
     * the scope resource
     *
     * @param array $data
     *
     * @return array
     */
    public function filterFields(array $data): array
    {
        $fields = $this->getFilterFields();

        if ($fields === null) {
            return $data;
        }

        return array_intersect_key(
            $data,
            array_flip(
                iterator_to_array($fields)
            )
        );
    }

    /**
     * Return the requested filter fields for the scope resource
     *
     * @internal
     *
     * @return ParamBag|null
     */
    protected function getFilterFields()
    {
        return $this->transform->getField(
            $this->getScopeIdentifier()
        );
    }

    /**
     * @param string $checkScopeSegment
     * @return string
     */
    private function scopeString(string $checkScopeSegment): string
    {
        if (!empty($this->parentScopes)) {
            $scopeArray = array_slice($this->parentScopes, 1);
            array_push($scopeArray, $this->scopeIdentifier, $checkScopeSegment);
        } else {
            $scopeArray = [$checkScopeSegment];
        }

        return implode('.', (array)$scopeArray);
    }
}


1			<?php
2
3			/**
4			* @author Flipbox Factory
5			* @copyright Copyright (c) 2017, Flipbox Digital
6			* @link https://github.com/flipbox/transform/releases/latest
7			* @license https://github.com/flipbox/transform/blob/master/LICENSE
8			*/
9
10			namespace Flipbox\Transform;
11
12			use Flipbox\Transform\Helpers\TransformerHelper;
13			use Flipbox\Transform\Transformers\TransformerInterface;
14			use InvalidArgumentException;
15			use ReflectionMethod;
16			use ReflectionParameter;
17
18			/**
19			* @author Flipbox Factory <[email protected]>
20			* @since 1.0.0
21			*/
22			class Scope
23			{
24			const IGNORE_EXTRA_PARAMS = ['data', 'scope', 'identifier'];
25
26			/**
27			* @var string
28			*/
29			protected $scopeIdentifier;
30
31			/**
32			* @var Transform
33			*/
34			protected $transform;
35
36			/**
37			* @var array
38			*/
39			protected $parentScopes = [];
40
41			/**
42			* Scope constructor.
43			* @param Transform $transform
44			* @param string\|null $scopeIdentifier
45			* @param array $parentScopes
46			*/
47			public function __construct(
48			Transform $transform,
49			string $scopeIdentifier = null,
50			array $parentScopes = []
51			) {
52			$this->transform = $transform;
53			$this->scopeIdentifier = $scopeIdentifier;
54			$this->parentScopes = $parentScopes;
55			}
56
57			/**
58			* @return Transform
59			*/
60			public function getTransform(): Transform
61			{
62			return $this->transform;
63			}
64
65			/**
66			* @param $key
67			* @return ParamBag
68			*/
69			public function getParams(string $key = null): ParamBag
70			{
71			return $this->getTransform()->getParams(
72			$this->getIdentifier($key)
73			);
74			}
75
76			/**
77			* Get the current identifier.
78			*
79			* @return string\|null
80			*/
81			public function getScopeIdentifier()
82			{
83			return $this->scopeIdentifier;
84			}
85
86			/**
87			* Get the unique identifier for this scope.
88			*
89			* @param string $appendIdentifier
90			*
91			* @return string
92			*/
93			public function getIdentifier(string $appendIdentifier = null): string
94			{
95			return implode(
96			'.',
97			array_filter(array_merge(
98			$this->parentScopes,
99			[
100			$this->scopeIdentifier,
101			$appendIdentifier
102			]
103			))
104			);
105			}
106
107			/**
108			* Getter for parentScopes.
109			*
110			* @return array
111			*/
112			public function getParentScopes(): array
113			{
114			return $this->parentScopes;
115			}
116
117			/**
118			* Is Requested.
119			*
120			* Check if - in relation to the current scope - this specific segment is allowed.
121			* That means, if a.b.c is requested and the current scope is a.b, then c is allowed. If the current
122			* scope is a then c is not allowed, even if it is there and potentially transformable.
123			*
124			* @internal
125			*
126			* @param string $checkScopeSegment
127			*
128			* @return bool Returns the new number of elements in the array.
129			*/
130			public function isRequested($checkScopeSegment): bool
131			{
132			return in_array(
133			$this->scopeString($checkScopeSegment),
134			$this->transform->getIncludes()
135			);
136			}
137
138			/**
139			* Is Excluded.
140			*
141			* Check if - in relation to the current scope - this specific segment should
142			* be excluded. That means, if a.b.c is excluded and the current scope is a.b,
143			* then c will not be allowed in the transformation whether it appears in
144			* the list of default or available, requested includes.
145			*
146			* @internal
147			*
148			* @param string $checkScopeSegment
149			*
150			* @return bool
151			*/
152			public function isExcluded($checkScopeSegment): bool
153			{
154			return in_array(
155			$this->scopeString($checkScopeSegment),
156			$this->transform->getExcludes()
157			);
158			}
159
160			/**
161			* @param TransformerInterface\|callable $transformer
162			* @param mixed $data
163			* @param array $extra
164			* @return mixed
165			*/
166			public function transform(callable $transformer, $data, array $extra = [])
167			{
168			return $this->parseValue($transformer, $data, null, $extra);
169			}
170
171			/**
172			* @param callable $transformer
173			* @param string $key
174			* @return bool
175			*/
176			public function includeValue(callable $transformer, string $key): bool
177			{
178			// Ignore optional (that have not been explicitly requested)
179			if ($transformer instanceof TransformerInterface &&
180			in_array($key, $transformer->getIncludes(), true) &&
181			!$this->isRequested($key)
182			) {
183			return false;
184			}
185
186			// Ignore excludes
187			if ($this->isExcluded($key)) {
188			return false;
189			}
190
191			return true;
192			}
193
194			/**
195			* @param $val
196			* @param $data
197			* @param string\|null $key
198			* @param array $extra
199			* @return mixed
200			*/
201			public function parseValue($val, $data, string $key = null, array $extra = [])
202			{
203			if (TransformerHelper::isTransformer($val)) {
204			$args = [$data, $this, $key];
205
206			if (!empty($extra)) {
207			$args = array_merge(
208			$args,
209			$this->validParams($val, $extra)
210			);
211			}
212
213			return call_user_func_array($val, $args);
214			}
215
216			return $val;
217			}
218
219			/**
220			* @param $transformer
221			* @param array $params
222			* @return array
223			*/
224			private function validParams($transformer, array $params): array
225			{
226			if (!is_object($transformer)) {
227			return $params;
228			}
229
230			$method = new ReflectionMethod($transformer, '__invoke');
231
232			$args = $missing = [];
233			foreach ($method->getParameters() as $param) {
234			$this->validParam($param, $params, $args, $missing);
235			}
236
237			if (!empty($missing)) {
238			throw new InvalidArgumentException(sprintf(
239			'Missing required parameters "%s".',
240			implode(', ', $missing)
241			));
242			}
243
244			return $args;
245			}
246
247			/**
248			* @param ReflectionParameter $param
249			* @param array $params
250			* @param array $args
251			* @param array $missing
252			*/
253			private function validParam(
254			ReflectionParameter $param,
255			array $params,
256			array &$args,
257			array &$missing
258			) {
259			$name = $param->name;
260			if (true === in_array($name, self::IGNORE_EXTRA_PARAMS, true)) {
261			return;
262			}
263			if (array_key_exists($name, $params)) {
264			$args[] = $this->argType($param, $params[$name]);
265			} elseif ($param->isDefaultValueAvailable()) {
266			$args[] = $param->getDefaultValue();
267			} else {
268			$missing[] = $name;
269			}
270			}
271
272			/**
273			* @param ReflectionParameter $param
274			* @param $value
275			* @return mixed
276			*/
277			private function argType(
278			ReflectionParameter $param,
279			$value
280			) {
281			if (!$param->hasType()) {
282			return $value;
283			}
284
285			if ($param->isArray()) {
286			return (array)$value;
287			}
288
289			if ($param->isCallable() && is_callable($value)) {
290			return $value;
291			}
292
293			if (!is_array($value)) {
294			return $value;
295			}
296
297			throw new InvalidArgumentException(sprintf(
298			'Invalid data received for parameter "%s".',
299			$param->name
300			));
301			}
302
303			/**
304			* @param string $identifier
305			* @return Scope
306			*/
307			public function childScope(string $identifier): Scope
308			{
309			$parentScopes = $this->getParentScopes();
310			$parentScopes[] = $this->getScopeIdentifier();
311
312			return new static(
313			$this->getTransform(),
314			$identifier,
315			$parentScopes
316			);
317			}
318
319			/**
320			* Check, if this is the root scope.
321			*
322			* @return bool
323			*/
324			protected function isRootScope(): bool
325			{
326			return empty($this->parentScopes);
327			}
328
329			/**
330			* Filter the provided data with the requested filter fields for
331			* the scope resource
332			*
333			* @param array $data
334			*
335			* @return array
336			*/
337			public function filterFields(array $data): array
338			{
339			$fields = $this->getFilterFields();
340
341			if ($fields === null) {
342			return $data;
343			}
344
345			return array_intersect_key(
346			$data,
347			array_flip(
348			iterator_to_array($fields)
349			)
350			);
351			}
352
353			/**
354			* Return the requested filter fields for the scope resource
355			*
356			* @internal
357			*
358			* @return ParamBag\|null
359			*/
360			protected function getFilterFields()
361			{
362			return $this->transform->getField(
363			$this->getScopeIdentifier()
364			);
365			}
366
367			/**
368			* @param string $checkScopeSegment
369			* @return string
370			*/
371			private function scopeString(string $checkScopeSegment): string
372			{
373			if (!empty($this->parentScopes)) {
374			$scopeArray = array_slice($this->parentScopes, 1);
375			array_push($scopeArray, $this->scopeIdentifier, $checkScopeSegment);
376			} else {
377			$scopeArray = [$checkScopeSegment];
378			}
379
380			return implode('.', (array)$scopeArray);
381			}
382			}
383

flipbox / transform

Push — develop ( a083a7...ae7e37 )

Scope::validParam() A

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