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| 1 | <?php |
| 2 | |
| 3 | declare(strict_types=1); |
| 4 | |
| 5 | namespace Celema\Router; |
| 6 | |
| 7 | /** @internal */ |
| 8 | trait AddsBeforeAfter |
| 9 | { |
| 10 | /** @var list<Before> */ |
| 11 | protected array $beforeHandlers = []; |
| 12 | |
| 13 | /** @var list<After> */ |
| 14 | protected array $afterHandlers = []; |
| 15 | |
| 16 | /** @psalm-api */ |
| 17 | public function before(Before $beforeHandler): static |
| 18 | { |
| 19 | $this->beforeHandlers = $this->mergeBeforeHandlers([$beforeHandler]); |
| 20 | |
| 21 | return $this; |
| 22 | } |
| 23 | |
| 24 | /** @return list<Before> */ |
| 25 | public function beforeHandlers(): array |
| 26 | { |
| 27 | return $this->beforeHandlers; |
| 28 | } |
| 29 | |
| 30 | /** @psalm-api */ |
| 31 | public function after(After $afterHandler): static |
| 32 | { |
| 33 | $this->afterHandlers = $this->mergeAfterHandlers([$afterHandler]); |
| 34 | |
| 35 | return $this; |
| 36 | } |
| 37 | |
| 38 | /** @return list<After> */ |
| 39 | public function afterHandlers(): array |
| 40 | { |
| 41 | return $this->afterHandlers; |
| 42 | } |
| 43 | |
| 44 | /** |
| 45 | * @param list<Before> $beforeHandlers |
| 46 | * @return list<Before> |
| 47 | */ |
| 48 | protected function mergeBeforeHandlers(array $beforeHandlers): array |
| 49 | { |
| 50 | return $this->doMergeBeforeHandlers($this->beforeHandlers, $beforeHandlers); |
| 51 | } |
| 52 | |
| 53 | /** |
| 54 | * @param list<After> $afterHandlers |
| 55 | * @return list<After> |
| 56 | */ |
| 57 | protected function mergeAfterHandlers(array $afterHandlers): array |
| 58 | { |
| 59 | return $this->doMergeAfterHandlers($this->afterHandlers, $afterHandlers); |
| 60 | } |
| 61 | |
| 62 | /** |
| 63 | * @param list<Before> $handlers |
| 64 | * @param list<Before> $newHandlers |
| 65 | * @return list<Before> |
| 66 | */ |
| 67 | protected function doMergeBeforeHandlers(array $handlers, array $newHandlers): array |
| 68 | { |
| 69 | foreach ($newHandlers as $handler) { |
| 70 | $replaced = false; |
| 71 | $result = []; |
| 72 | |
| 73 | foreach ($handlers as $h) { |
| 74 | if (!$replaced && $h->replace($handler)) { |
| 75 | $replaced = true; |
| 76 | $result[] = $handler; |
| 77 | } else { |
| 78 | $result[] = $h; |
| 79 | } |
| 80 | } |
| 81 | |
| 82 | $handlers = $result; |
| 83 | |
| 84 | if (!$replaced) { |
| 85 | $handlers[] = $handler; |
| 86 | } |
| 87 | } |
| 88 | |
| 89 | return $handlers; |
| 90 | } |
| 91 | |
| 92 | /** |
| 93 | * @param list<After> $handlers |
| 94 | * @param list<After> $newHandlers |
| 95 | * @return list<After> |
| 96 | */ |
| 97 | protected function doMergeAfterHandlers(array $handlers, array $newHandlers): array |
| 98 | { |
| 99 | foreach ($newHandlers as $handler) { |
| 100 | $replaced = false; |
| 101 | $result = []; |
| 102 | |
| 103 | foreach ($handlers as $h) { |
| 104 | if (!$replaced && $h->replace($handler)) { |
| 105 | $replaced = true; |
| 106 | $result[] = $handler; |
| 107 | } else { |
| 108 | $result[] = $h; |
| 109 | } |
| 110 | } |
| 111 | |
| 112 | $handlers = $result; |
| 113 | |
| 114 | if (!$replaced) { |
| 115 | $handlers[] = $handler; |
| 116 | } |
| 117 | } |
| 118 | |
| 119 | return $handlers; |
| 120 | } |
| 121 | } |