Passed
Push — master ( 56ef9f...dc60c9 )
by Alexander
01:55
created

SimpleEventDispatcher::getEventClasses()   A

Complexity

Conditions 1
Paths 1

Size

Total Lines 3
Code Lines 1

Duplication

Lines 0
Ratio 0 %

Code Coverage

Tests 2
CRAP Score 1

Importance

Changes 0
Metric Value
cc 1
eloc 1
c 0
b 0
f 0
nc 1
nop 0
dl 0
loc 3
ccs 2
cts 2
cp 1
crap 1
rs 10
1
<?php
2
3
declare(strict_types=1);
4
5
namespace Yiisoft\Test\Support\EventDispatcher;
6
7
use Closure;
8
use Psr\EventDispatcher\EventDispatcherInterface;
9
use Psr\EventDispatcher\StoppableEventInterface;
10
11
use function get_class;
12
13
final class SimpleEventDispatcher implements EventDispatcherInterface
14
{
15
    /** @var array<int, Closure> */
16
    private array $listeners;
17
18
    /**
19
     * @var object[]
20
     * @psalm-var list<object>
21
     */
22
    private array $events = [];
23
24
    /**
25
     * @param Closure ...$listeners Functions that will handle each event.
26
     */
27 18
    public function __construct(Closure ...$listeners)
28
    {
29 18
        $this->listeners = $listeners;
30 18
    }
31
32 16
    public function dispatch(object $event): object
33
    {
34 16
        $this->events[] = $event;
35 16
        foreach ($this->listeners as $listener) {
36 4
            if ($event instanceof StoppableEventInterface && $event->isPropagationStopped()) {
37 2
                return $event;
38
            }
39 3
            $listener($event);
40
        }
41 13
        return $event;
42
    }
43
44
    /**
45
     * @return object[]
46
     * @psalm-return list<object>
47
     */
48 3
    public function getEvents(): array
49
    {
50 3
        return $this->events;
51
    }
52
53
    /**
54
     * @psalm-return list<class-string>
55
     */
56 1
    public function getEventClasses(): array
57
    {
58 1
        return array_map('\get_class', $this->events);
59
    }
60
61 1
    public function clearEvents(): void
62
    {
63 1
        $this->events = [];
64 1
    }
65
66 3
    public function isObjectTriggered(object $event, int $times = null): bool
67
    {
68 3
        return $this->processBoolResult(static fn (object $e): bool => $e === $event, $times);
69
    }
70
71 4
    public function isClassTriggered(string $class, int $times = null): bool
72
    {
73 4
        return $this->processBoolResult(static fn (object $event): bool => get_class($event) === $class, $times);
74
    }
75
76 3
    public function isInstanceOfTriggered(string $class, int $times = null): bool
77
    {
78 3
        return $this->processBoolResult(static fn (object $event): bool => $event instanceof $class, $times);
79
    }
80
81 10
    private function processBoolResult(Closure $closure, ?int $times): bool
82
    {
83 10
        if ($times < 0) {
84 1
            throw new \InvalidArgumentException('The $times argument cannot be less than zero.');
85
        }
86 9
        if ($times === null) {
87 3
            return $this->hasEvent($closure);
88
        }
89 6
        return $times === $this->calcEvent($closure);
90
    }
91
92 3
    private function hasEvent(Closure $closure): bool
93
    {
94 3
        foreach ($this->events as $event) {
95 3
            if ($closure($event)) {
96 3
                return true;
97
            }
98
        }
99 3
        return false;
100
    }
101
102 6
    private function calcEvent(Closure $closure): int
103
    {
104 6
        $count = 0;
105 6
        foreach ($this->events as $event) {
106 6
            if ($closure($event)) {
107 6
                ++$count;
108
            }
109
        }
110 6
        return $count;
111
    }
112
}
113