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<?php |
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namespace einfach\operation; |
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use function einfach\operation\response\isError; |
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use function einfach\operation\response\isOk; |
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use function einfach\operation\response\isValidResponse; |
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use const einfach\operation\response\RESPONSE_TYPE_ERROR; |
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use const einfach\operation\response\RESPONSE_TYPE_OK; |
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use einfach\operation\step\Step; |
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use einfach\operation\step\Failure; |
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use einfach\operation\step\AbstractStep; |
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use einfach\operation\step\Always; |
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use einfach\operation\step\TryCatch; |
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class Railway |
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{ |
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const TRACK_SUCCESS = 'success_track'; |
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const TRACK_FAILURE = 'failure_track'; |
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/** |
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* @var \SplQueue |
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*/ |
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public $stepsQueue; |
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/** |
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* Accumulator of passed steps, while running railway |
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* |
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* @var array |
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*/ |
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protected $signaturesPipeline = []; |
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public function __construct() |
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{ |
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$this->stepsQueue = []; |
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} |
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protected function findTargetStepIndex($stepName) |
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{ |
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$steps = array_column($this->stepsQueue, 'step'); |
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$names = array_map(function ($step) { |
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return $step->name(); |
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}, $steps); |
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$targetIndex = array_search($stepName, $names); |
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return $targetIndex; |
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} |
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View Code Duplication |
protected function insertStepBefore(string $stepName, AbstractStep $stepObject, array $opt) |
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{ |
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$targetIndex = $this->findTargetStepIndex($stepName); |
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$step = [ |
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'step' => $stepObject, |
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'opt' => $opt |
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]; |
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array_splice($this->stepsQueue, $targetIndex, 0, [$step]); |
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} |
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View Code Duplication |
protected function insertStepAfter(string $stepName, AbstractStep $stepObject, array $opt) |
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{ |
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$targetIndex = $this->findTargetStepIndex($stepName); |
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$step = [ |
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'step' => $stepObject, |
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'opt' => $opt |
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]; |
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array_splice($this->stepsQueue, $targetIndex + 1, 0, [$step]); |
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} |
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View Code Duplication |
protected function replaceStep(string $stepName, AbstractStep $stepObject, array $opt) |
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{ |
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$targetIndex = $this->findTargetStepIndex($stepName); |
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$step = [ |
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'step' => $stepObject, |
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'opt' => $opt |
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]; |
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array_splice($this->stepsQueue, $targetIndex, 1, [$step]); |
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} |
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protected function addStep(AbstractStep $stepObject, array $opt) |
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{ |
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$this->stepsQueue[] = [ |
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'step' => $stepObject, |
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'opt' => $opt |
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]; |
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} |
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/** |
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* |
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* @param AbstractStep $stepObject |
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* @param array $opt |
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* @return $this |
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*/ |
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public function rawStep(AbstractStep $stepObject, $opt = []) : Railway |
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{ |
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$before = $opt['before'] ?? null; |
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$after = $opt['after'] ?? null; |
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$replace = $opt['replace'] ?? null; |
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if ($before) { |
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$this->insertStepBefore($before, $stepObject, $opt); |
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} elseif ($after) { |
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$this->insertStepAfter($after, $stepObject, $opt); |
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} elseif ($replace) { |
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$this->replaceStep($replace, $stepObject, $opt); |
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} else { |
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$this->addStep($stepObject, $opt); |
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} |
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return $this; |
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} |
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public function step(callable $callable, $opt = []) : Railway |
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{ |
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$name = $opt['name'] ?? null; |
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return $this->rawStep(new Step($callable, $name), $opt); |
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} |
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public function always(callable $callable, $opt = []) : Railway |
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{ |
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$name = $opt['name'] ?? null; |
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return $this->rawStep(new Always($callable, $name), $opt); |
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} |
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public function failure(callable $callable, $opt = []) : Railway |
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{ |
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$name = $opt['name'] ?? null; |
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return $this->rawStep(new Failure($callable, $name), $opt); |
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} |
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public function tryCatch(callable $callable, $opt = []) : Railway |
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{ |
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$name = $opt['name'] ?? null; |
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return $this->rawStep(new TryCatch($callable, $name), $opt); |
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} |
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public function removeStep(string $stepName){ |
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$targetIndex = $this->findTargetStepIndex($stepName); |
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unset($this->stepsQueue[$targetIndex]); |
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return $this; |
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} |
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/** |
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* @param $params |
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* @return Result |
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* @throws \Exception |
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*/ |
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public function runWithParams($params) |
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{ |
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// a bit hardcoded, but let it be :) |
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$params['__errors'] = []; |
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$track = self::TRACK_SUCCESS; |
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foreach ($this->stepsQueue as $item) { |
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$step = $item['step']; |
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$opt = $item['opt']; |
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/** |
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* @var $step AbstractStep |
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*/ |
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$track = $this->performStep($step, $params, $opt, $track); |
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} |
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return new Result($params, $track, $this->signaturesPipeline); |
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} |
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/** |
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* @throws \Exception |
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*/ |
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protected function performStep($step, &$params, $opt, $track) |
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{ |
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$nextTrack = $track; |
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$stepResult = $step($params, $track, $opt); |
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if (!$step->isSkipped()) { |
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if (isValidResponse($stepResult)) { |
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if (isOk($stepResult)) { |
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$nextTrack = self::TRACK_SUCCESS; |
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} elseif (isError($stepResult)) { |
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$nextTrack = self::TRACK_FAILURE; |
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} |
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$params = $stepResult['params']; |
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$this->signaturesPipeline[] = $step->signature(); |
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} else { |
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$actualResult = var_export($stepResult, true); |
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throw new \Exception("Step returned incorrectly formatted result: {$actualResult}"); |
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} |
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} |
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return $nextTrack; |
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} |
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} |
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iJackUA /
einfach-operation
Loading history...
Our type inference engine has found an assignment to a property that is incompatible with the declared type of that property.
Either this assignment is in error or the assigned type should be added to the documentation/type hint for that property..