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<?php |
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declare(strict_types=1); |
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namespace EdifactParser; |
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use EdifactParser\Segments\SegmentInterface; |
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use EdifactParser\Segments\UNHMessageHeader; |
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use EdifactParser\Segments\UNTMessageFooter; |
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/** @psalm-immutable */ |
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final class TransactionMessage |
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{ |
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/** @var array<string, array<string,SegmentInterface>> */ |
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private array $groupedSegments; |
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/** |
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* A transaction message starts with the "UNHMessageHeader" segment and finalizes with |
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* the "UNTMessageFooter" segment, this process is repeated for each pair of segments. |
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* |
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* @psalm-pure |
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* @psalm-return list<TransactionMessage> |
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*/ |
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public static function groupSegmentsByMessage(SegmentInterface...$segments): array |
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{ |
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$messages = []; |
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$groupedSegments = []; |
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foreach ($segments as $segment) { |
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if ($segment instanceof UNHMessageHeader) { |
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$groupedSegments = []; |
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} |
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$groupedSegments[] = $segment; |
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if ($segment instanceof UNTMessageFooter |
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&& self::isGroupedSegmentsNotEmpty($groupedSegments) |
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) { |
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$messages[] = self::groupSegmentsByName(...$groupedSegments); |
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} |
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} |
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return array_values( |
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array_filter($messages, static function (self $m) { |
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return !empty($m->segmentsByName(UNHMessageHeader::class)); |
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}) |
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); |
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} |
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/** @param array<string, array<string,SegmentInterface>> $groupedSegments */ |
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public function __construct(array $groupedSegments) |
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{ |
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$this->groupedSegments = $groupedSegments; |
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} |
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/** @return array<string,SegmentInterface> */ |
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public function segmentsByName(string $name): array |
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{ |
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return $this->groupedSegments[$name] ?? []; |
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} |
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/** |
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* We add automatically all items to the $groupedSegments array in the loop, |
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* one message is made of "UNHMessageHeader" and "UNTMessageFooter" segments. |
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* So the minimum messages are two, only one segment is not possible. |
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* |
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* @psalm-pure |
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*/ |
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private static function isGroupedSegmentsNotEmpty(array $groupedSegments): bool |
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{ |
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return count($groupedSegments) > 1; |
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} |
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/** @psalm-pure */ |
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private static function groupSegmentsByName(SegmentInterface...$segments): self |
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{ |
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$return = []; |
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foreach ($segments as $s) { |
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$return[$s->tag()] ??= []; |
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$return[$s->tag()][$s->subId()] = $s; |
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} |
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return new self($return); |
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} |
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} |
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Chemaclass /
EdifactParser
