|
1
|
|
|
<?php |
|
2
|
|
|
declare(strict_types=1); |
|
3
|
|
|
|
|
4
|
|
|
namespace Stratadox\EntityState; |
|
5
|
|
|
|
|
6
|
|
|
use Stratadox\EntityState\RepresentsEntity as TheOther; |
|
7
|
|
|
|
|
8
|
|
|
/** |
|
9
|
|
|
* Represents the state of an entity. |
|
10
|
|
|
* |
|
11
|
|
|
* @author Stratadox |
|
12
|
|
|
*/ |
|
13
|
|
|
final class EntityState implements RepresentsEntity |
|
14
|
|
|
{ |
|
15
|
|
|
private $class; |
|
16
|
|
|
private $id; |
|
17
|
|
|
private $properties; |
|
18
|
|
|
|
|
19
|
|
|
private function __construct( |
|
20
|
|
|
string $class, |
|
21
|
|
|
?string $id, |
|
22
|
|
|
ListsPropertyStates $properties |
|
23
|
|
|
) { |
|
24
|
|
|
$this->class = $class; |
|
25
|
|
|
$this->id = $id; |
|
26
|
|
|
$this->properties = $properties; |
|
27
|
|
|
} |
|
28
|
|
|
|
|
29
|
|
|
/** |
|
30
|
|
|
* Produces an entity representation. |
|
31
|
|
|
* |
|
32
|
|
|
* @param string $class The fully qualified class name. |
|
33
|
|
|
* @param null|string $id The id of the entity. |
|
34
|
|
|
* @param ListsPropertyStates $properties The property state representations. |
|
35
|
|
|
* @return RepresentsEntity The entity state representation. |
|
36
|
|
|
*/ |
|
37
|
|
|
public static function ofThe( |
|
38
|
|
|
string $class, |
|
39
|
|
|
?string $id, |
|
40
|
|
|
ListsPropertyStates $properties |
|
41
|
|
|
): RepresentsEntity { |
|
42
|
|
|
return new self($class, $id, $properties); |
|
43
|
|
|
} |
|
44
|
|
|
|
|
45
|
|
|
/** @inheritdoc */ |
|
46
|
|
|
public function class(): string |
|
47
|
|
|
{ |
|
48
|
|
|
return $this->class; |
|
49
|
|
|
} |
|
50
|
|
|
|
|
51
|
|
|
/** @inheritdoc */ |
|
52
|
|
|
public function hasTheSameIdentityAs(RepresentsEntity $entity): bool |
|
53
|
|
|
{ |
|
54
|
|
|
return $this->class === $entity->class() |
|
55
|
|
|
&& $this->id === $entity->id(); |
|
56
|
|
|
} |
|
57
|
|
|
|
|
58
|
|
|
/** @inheritdoc */ |
|
59
|
|
|
public function id(): ?string |
|
60
|
|
|
{ |
|
61
|
|
|
return $this->id; |
|
62
|
|
|
} |
|
63
|
|
|
|
|
64
|
|
|
/** @inheritdoc */ |
|
65
|
|
|
public function properties(): ListsPropertyStates |
|
66
|
|
|
{ |
|
67
|
|
|
return $this->properties; |
|
68
|
|
|
} |
|
69
|
|
|
|
|
70
|
|
|
/** @inheritdoc */ |
|
71
|
|
|
public function isDifferentFrom(TheOther $entity): bool |
|
72
|
|
|
{ |
|
73
|
|
|
return !$this->hasTheSameIdentityAs($entity) |
|
74
|
|
|
|| $this->properties->areDifferentFrom($entity->properties()); |
|
75
|
|
|
} |
|
76
|
|
|
|
|
77
|
|
|
/** @inheritdoc */ |
|
78
|
|
|
public function subsetThatDiffersFrom( |
|
79
|
|
|
ListsEntityStates $entityStates |
|
80
|
|
|
): RepresentsEntity { |
|
81
|
|
|
foreach ($entityStates as $entity) { |
|
82
|
|
|
if ($this->hasTheSameIdentityAs($entity)) { |
|
83
|
|
|
return $this->subsetThatDiffersFromThe($entity); |
|
84
|
|
|
} |
|
85
|
|
|
} |
|
86
|
|
|
return $this; |
|
87
|
|
|
} |
|
88
|
|
|
|
|
89
|
|
|
/** @inheritdoc */ |
|
90
|
|
|
public function mergeWith(TheOther $entityState): RepresentsEntity |
|
91
|
|
|
{ |
|
92
|
|
|
return $this->with( |
|
93
|
|
|
$this->properties->merge($entityState->properties()) |
|
94
|
|
|
); |
|
95
|
|
|
} |
|
96
|
|
|
|
|
97
|
|
|
private function subsetThatDiffersFromThe( |
|
98
|
|
|
RepresentsEntity $otherEntity |
|
99
|
|
|
): RepresentsEntity { |
|
100
|
|
|
$properties = []; |
|
101
|
|
|
foreach ($this->properties as $myProperty) { |
|
102
|
|
|
if ($myProperty->isDifferentInThe($otherEntity->properties())) { |
|
103
|
|
|
$properties[] = $myProperty; |
|
104
|
|
|
} |
|
105
|
|
|
} |
|
106
|
|
|
return $this->with(PropertyStates::list(...$properties)); |
|
107
|
|
|
} |
|
108
|
|
|
|
|
109
|
|
|
private function with(ListsPropertyStates $properties): RepresentsEntity |
|
110
|
|
|
{ |
|
111
|
|
|
return EntityState::ofThe($this->class, $this->id, $properties); |
|
112
|
|
|
} |
|
113
|
|
|
} |
|
114
|
|
|
|
Stratadox /
EntityState
