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<?php |
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/* |
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* This file is part of the prooph/php-ddd-cargo-sample. |
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* (c) Alexander Miertsch <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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* |
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* Date: 01.03.14 - 22:35 |
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*/ |
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declare(strict_types = 1); |
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namespace Codeliner\GraphTraversalBackend; |
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use Codeliner\GraphTraversalBackend\Dto\EdgeDto; |
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use Codeliner\GraphTraversalBackend\Dto\TransitPathDto; |
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/** |
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* Class GraphTraversalService |
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* |
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* The GraphTraversalService takes a RouteSpecification, that describes the start location and the end location of a cargo |
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* and fetches compatible routes that are described by Itineraries. |
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* |
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* @package Application\Service |
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* @author Alexander Miertsch <[email protected]> |
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*/ |
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class GraphTraversalService implements GraphTraversalServiceInterface |
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{ |
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/** |
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* @var array |
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*/ |
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private $routes = array(); |
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public function __construct(array $aRouteList) |
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{ |
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$this->routes = $aRouteList; |
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} |
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/** |
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* @param string $fromUnLocode |
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* @param string $toUnLocode |
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* @return TransitPathDto[] |
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*/ |
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public function findShortestPath($fromUnLocode, $toUnLocode): array |
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{ |
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$routes = \array_filter($this->routes, function($route) use ($fromUnLocode, $toUnLocode) { |
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return $route['origin'] === $fromUnLocode && $route['destination'] === $toUnLocode; |
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}); |
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$transitPaths = array(); |
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foreach($routes as $route) { |
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$transitPaths[] = $this->routeToTransitPath($route); |
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} |
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return $transitPaths; |
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} |
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/** |
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* @param array $route |
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* @return TransitPathDto |
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*/ |
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private function routeToTransitPath(array $route): TransitPathDto |
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{ |
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$edges = array(); |
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$loadDay = \rand(1,4); |
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$loadTimestamp = strtotime("+$loadDay day"); |
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$loadTime = new \DateTime(); |
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$loadTime->setTimestamp($loadTimestamp); |
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$elapsedDays = 0; |
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$currentLocation = $route['origin']; |
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$currentTime = $loadTime; |
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if (!empty($route['stops'])) { |
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foreach($route['stops'] as $unLocode => $duration) { |
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$elapsedDays += $duration; |
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$durationInterval = new \DateInterval('P' . $duration . 'DT' . \rand(1, 12) . 'H' . \rand(1, 60) . 'M'); |
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$currentTime->add(new \DateInterval('P1DT' . \rand(1, 12) . 'H' . \rand(1, 60) . 'M')); |
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$loadTime = clone $currentTime; |
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$currentTime->add($durationInterval); |
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$unloadTime = clone $currentTime; |
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$edge = new EdgeDto(); |
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$edge->setFromUnLocode($currentLocation); |
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$edge->setToUnLocode($unLocode); |
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$edge->setFromDate($loadTime->format(\DateTime::ATOM)); |
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$edge->setToDate($unloadTime->format(\DateTime::ATOM)); |
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$edges[] = $edge; |
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$currentLocation = $unLocode; |
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} |
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} |
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$destinationDuration = $route['duration'] - $elapsedDays; |
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$durationInterval = new \DateInterval('P' . $destinationDuration . 'DT' . \rand(1, 12) . 'H' . \rand(1, 60) . 'M'); |
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$currentTime->add(new \DateInterval('P1DT' . \rand(1, 12) . 'H' . \rand(1, 60) . 'M')); |
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$loadTime = clone $currentTime; |
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$currentTime->add($durationInterval); |
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$unloadTime = clone $currentTime; |
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$edge = new EdgeDto(); |
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$edge->setFromUnLocode($currentLocation); |
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$edge->setToUnLocode($route['destination']); |
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$edge->setFromDate($loadTime->format(\DateTime::ATOM)); |
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$edge->setToDate($unloadTime->format(\DateTime::ATOM)); |
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$edges[] = $edge; |
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$transitPath = new TransitPathDto(); |
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$transitPath->setEdges($edges); |
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return $transitPath; |
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} |
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} |
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codeliner /
php-ddd-cargo-sample
