|
1
|
|
|
<?php |
|
2
|
|
|
declare(strict_types=1); |
|
3
|
|
|
|
|
4
|
|
|
namespace Remorhaz\JSON\Pointer\Processor\Mutator; |
|
5
|
|
|
|
|
6
|
|
|
use ArrayIterator; |
|
7
|
|
|
use Generator; |
|
8
|
|
|
use Iterator; |
|
9
|
|
|
use Remorhaz\JSON\Data\Event\AfterElementEvent; |
|
10
|
|
|
use Remorhaz\JSON\Data\Event\AfterElementEventInterface; |
|
11
|
|
|
use Remorhaz\JSON\Data\Event\BeforeElementEvent; |
|
12
|
|
|
use Remorhaz\JSON\Data\Event\BeforeElementEventInterface; |
|
13
|
|
|
use Remorhaz\JSON\Data\Event\EventInterface; |
|
14
|
|
|
use Remorhaz\JSON\Data\Export\EventDecoder; |
|
15
|
|
|
use Remorhaz\JSON\Data\Path\PathInterface; |
|
16
|
|
|
use Remorhaz\JSON\Data\Value\NodeValueInterface; |
|
17
|
|
|
use Remorhaz\JSON\Data\Walker\MutationInterface; |
|
18
|
|
|
use Remorhaz\JSON\Data\Walker\ValueWalkerInterface; |
|
19
|
|
|
|
|
20
|
|
|
final class InsertElementMutation implements MutationInterface |
|
21
|
|
|
{ |
|
22
|
|
|
|
|
23
|
|
|
private $value; |
|
24
|
|
|
|
|
25
|
|
|
private $path; |
|
26
|
|
|
|
|
27
|
|
|
private $elementIndex; |
|
28
|
|
|
|
|
29
|
|
|
private $elementCounter = 0; |
|
30
|
|
|
|
|
31
|
|
|
public function __construct(NodeValueInterface $value, PathInterface $path, int $elementIndex) |
|
32
|
|
|
{ |
|
33
|
|
|
$this->value = $value; |
|
34
|
|
|
$this->path = $path; |
|
35
|
|
|
$this->elementIndex = $elementIndex; |
|
36
|
|
|
} |
|
37
|
|
|
|
|
38
|
|
|
public function __invoke(EventInterface $event, ValueWalkerInterface $valueWalker): Iterator |
|
39
|
|
|
{ |
|
40
|
|
|
if (!$this->parentPathMatches($event)) { |
|
41
|
|
|
yield $event; |
|
42
|
|
|
|
|
43
|
|
|
return; |
|
44
|
|
|
} |
|
45
|
|
|
|
|
46
|
|
|
switch (true) { |
|
47
|
|
|
case $event instanceof BeforeElementEventInterface: |
|
48
|
|
|
yield from $this->processBeforeElementEvent($event, $valueWalker); |
|
49
|
|
|
break; |
|
50
|
|
|
case $event instanceof AfterElementEventInterface: |
|
51
|
|
|
yield from $this->processAfterElementEvent($event); |
|
52
|
|
|
break; |
|
53
|
|
|
|
|
54
|
|
|
default: |
|
55
|
|
|
yield from $this->processElementValue($event, $valueWalker); |
|
56
|
|
|
} |
|
57
|
|
|
} |
|
58
|
|
|
|
|
59
|
|
|
public function reset(): void |
|
60
|
|
|
{ |
|
61
|
|
|
$this->elementCounter = 0; |
|
62
|
|
|
} |
|
63
|
|
|
|
|
64
|
|
|
private function parentPathMatches(EventInterface $event): bool |
|
65
|
|
|
{ |
|
66
|
|
|
$pathElements = $event->getPath()->getElements(); |
|
67
|
|
|
if (empty($pathElements)) { |
|
68
|
|
|
return false; |
|
69
|
|
|
} |
|
70
|
|
|
|
|
71
|
|
|
return $event |
|
72
|
|
|
->getPath() |
|
73
|
|
|
->copyParent() |
|
74
|
|
|
->equals($this->path); |
|
75
|
|
|
} |
|
76
|
|
|
|
|
77
|
|
|
private function processBeforeElementEvent( |
|
78
|
|
|
BeforeElementEventInterface $event, |
|
79
|
|
|
ValueWalkerInterface $valueWalker |
|
80
|
|
|
): Generator { |
|
81
|
|
|
if ($event->getIndex() < $this->elementIndex) { |
|
82
|
|
|
yield $event; |
|
83
|
|
|
|
|
84
|
|
|
return; |
|
85
|
|
|
} |
|
86
|
|
|
|
|
87
|
|
|
if ($event->getIndex() == $this->elementIndex) { |
|
88
|
|
|
$propertyPath = $this->path->copyWithElement($this->elementIndex); |
|
89
|
|
|
yield new BeforeElementEvent($this->elementIndex, $propertyPath); |
|
90
|
|
|
yield from $valueWalker->createEventIterator($this->value, $propertyPath); |
|
91
|
|
|
yield new AfterElementEvent($this->elementIndex, $propertyPath); |
|
92
|
|
|
} |
|
93
|
|
|
$shiftedIndex = $event->getIndex() + 1; |
|
94
|
|
|
$path = $event |
|
95
|
|
|
->getPath() |
|
96
|
|
|
->copyParent() |
|
97
|
|
|
->copyWithElement($shiftedIndex); |
|
98
|
|
|
yield new BeforeElementEvent($shiftedIndex, $path); |
|
99
|
|
|
} |
|
100
|
|
|
|
|
101
|
|
|
private function processAfterElementEvent(AfterElementEventInterface $event): Generator |
|
102
|
|
|
{ |
|
103
|
|
|
$this->elementCounter++; |
|
104
|
|
|
if ($event->getIndex() < $this->elementIndex) { |
|
105
|
|
|
yield $event; |
|
106
|
|
|
|
|
107
|
|
|
return; |
|
108
|
|
|
} |
|
109
|
|
|
|
|
110
|
|
|
$shiftedIndex = $event->getIndex() + 1; |
|
111
|
|
|
$path = $event |
|
112
|
|
|
->getPath() |
|
113
|
|
|
->copyParent() |
|
114
|
|
|
->copyWithElement($shiftedIndex); |
|
115
|
|
|
yield new AfterElementEvent($shiftedIndex, $path); |
|
116
|
|
|
} |
|
117
|
|
|
|
|
118
|
|
|
private function processElementValue(EventInterface $event, ValueWalkerInterface $valueWalker): Generator |
|
119
|
|
|
{ |
|
120
|
|
|
$path = $event |
|
121
|
|
|
->getPath() |
|
122
|
|
|
->copyParent() |
|
123
|
|
|
->copyWithElement($this->elementCounter + 1); |
|
124
|
|
|
|
|
125
|
|
|
yield from $valueWalker->createEventIterator( |
|
126
|
|
|
(new EventDecoder)->exportExistingEvents(new ArrayIterator([$event])), |
|
127
|
|
|
$path, |
|
128
|
|
|
); |
|
129
|
|
|
} |
|
130
|
|
|
} |
|
131
|
|
|
|
remorhaz /
php-json-pointer
