Cascader::getReflectionClass()   A
last analyzed

Complexity

Conditions 3
Paths 3

Size

Total Lines 14

Duplication

Lines 0
Ratio 0 %

Code Coverage

Tests 7
CRAP Score 3

Importance

Changes 0
Metric Value
dl 0
loc 14
ccs 7
cts 7
cp 1
rs 9.7998
c 0
b 0
f 0
cc 3
nc 3
nop 1
crap 3
1
<?php
2
3
declare(strict_types=1);
4
5
namespace Cascader;
6
7
use Cascader\Exception\InvalidClassException;
8
use Cascader\Exception\InvalidOptionsException;
9
use ReflectionClass;
10
use ReflectionParameter;
11
12
class Cascader
13
{
14
    const ARGUMENT_CLASS = '__class__';
15
16
    /**
17
     * @param string $className
18
     * @param array $options
19
     *
20
     * @throws InvalidClassException
21
     * @throws InvalidOptionsException
22
     *
23
     * @return object
24
     */
25 12
    public function create(string $className, array $options)
26
    {
27 12
        $reflectionClass = $this->getReflectionClass($className);
28 10
        $options = Options::fromArray($options);
29
30 9
        $arguments = $this->resolveArguments($reflectionClass, $options);
31
32 8
        return new $className(...$arguments);
33
    }
34
35 12
    protected function getReflectionClass(string $className) : ReflectionClass
36
    {
37
        try {
38 12
            $reflectionClass = new ReflectionClass($className);
39 1
        } catch (\ReflectionException $ex) {
40 1
            throw InvalidClassException::nonExistingClass($className);
41
        }
42
43 11
        if (! $reflectionClass->isInstantiable()) {
44 1
            throw InvalidClassException::nonInstantiableClass($className);
45
        }
46
47 10
        return $reflectionClass;
48
    }
49
50 9
    protected function resolveArguments(ReflectionClass $reflectionClass, Options $options) : array
51
    {
52 9
        $constructor = $reflectionClass->getConstructor();
53
54 9
        if (null === $constructor) {
55 1
            return [];
56
        }
57
58 8
        $arguments = [];
59
60 8
        $constructorParameters = $constructor->getParameters();
61
62 8
        foreach ($constructorParameters as $parameter) {
63 8
            $arguments[] = $this->resolveArgument($parameter, $options);
64
        }
65
66 7
        return $arguments;
67
    }
68
69 8
    protected function resolveArgument(ReflectionParameter $reflectionParameter, Options $options)
70
    {
71 8
        $parameterAnalysis = new ParameterAnalysis($reflectionParameter, $options);
72
73 8
        if (! $parameterAnalysis->hasArgument()) {
74 6
            if (! $parameterAnalysis->isOptional()) {
75 1
                throw InvalidOptionsException::missingMandatoryParameter($parameterAnalysis);
76
            }
77
78 5
            return $parameterAnalysis->getDefaultValue();
79
        }
80
81 7
        $argument = $parameterAnalysis->getArgument();
82
83 7
        if ($parameterAnalysis->isArray()) {
84 3
            return $this->resolveArrayArgument($argument);
85
        }
86
87 7
        if ($parameterAnalysis->isNestedObject()) {
88 2
            return $this->createNestedObject($parameterAnalysis->getType(), $argument);
89
        }
90
91 7
        return $argument;
92
    }
93
94 3
    protected function resolveArrayArgument(array $argument) : array
95
    {
96 3
        foreach ($argument as $k => $value) {
97 3
            if (\is_array($value) && isset($value[self::ARGUMENT_CLASS])) {
98 1
                $argument[$k] = $this->createNestedObject('', $value);
99
            }
100
        }
101
102 3
        return $argument;
103
    }
104
105 3
    protected function createNestedObject(string $className, array $arguments)
106
    {
107 3
        if (isset($arguments[self::ARGUMENT_CLASS])) {
108 2
            $className = $arguments[self::ARGUMENT_CLASS];
109 2
            unset($arguments[self::ARGUMENT_CLASS]);
110
        }
111
112 3
        return $this->create($className, $arguments);
113
    }
114
}
115