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<?php |
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declare(strict_types=1); |
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namespace Chemaclass\StockTicker\Domain\Notifier; |
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use Chemaclass\StockTicker\Domain\Crawler\CrawlResult; |
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use Chemaclass\StockTicker\Domain\Notifier\Policy\PolicyGroup; |
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use Chemaclass\StockTicker\Domain\WriteModel\Quote; |
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use function get_class; |
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use function is_int; |
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final class Notifier implements NotifierInterface |
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{ |
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private NotifierPolicy $policy; |
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/** @var ChannelInterface[] */ |
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private array $channels; |
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public function __construct( |
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NotifierPolicy $policy, |
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ChannelInterface ...$channels, |
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) { |
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$this->policy = $policy; |
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$this->channels = $channels; |
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} |
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public function notify(CrawlResult $crawlResult): NotifyResult |
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{ |
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$result = new NotifyResult(); |
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foreach ($this->policy->groupedBySymbol() as $symbol => $policyGroup) { |
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$quote = $crawlResult->getQuote($symbol); |
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$conditionNames = $this->matchConditions($policyGroup, $quote); |
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if (!empty($conditionNames)) { |
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$result->add($quote, $conditionNames); |
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} |
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} |
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if (!$result->isEmpty()) { |
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$this->sendNotification($result); |
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} |
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return $result; |
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} |
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private function matchConditions(PolicyGroup $policyGroup, Quote $quote): array |
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{ |
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$conditionNames = []; |
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foreach ($policyGroup->conditions() as $conditionName => $callablePolicy) { |
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if (!$callablePolicy($quote)) { |
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continue; |
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} |
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if (is_int($conditionName)) { |
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$conditionName = get_class($callablePolicy); |
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} |
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$conditionNames[] = $conditionName; |
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} |
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return $conditionNames; |
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} |
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private function sendNotification(NotifyResult $result): void |
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{ |
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foreach ($this->channels as $channel) { |
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$channel->send($result); |
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} |
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} |
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} |
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Chemaclass /
stock-ticker
