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<?php |
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namespace Spiral\Statistics; |
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use Spiral\Statistics\Database\Sources\StatisticsSource; |
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use Spiral\Statistics\Database\Statistics; |
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use Spiral\Statistics\Exceptions\EmptyExtractEventsException; |
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use Spiral\Statistics\Extract\Range; |
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use Spiral\Statistics\Extract\Events; |
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use Spiral\Statistics\Extract\RangeInterface; |
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class Extract |
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{ |
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/** @var StatisticsSource */ |
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protected $source; |
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/** @var DatetimeConverter */ |
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protected $converter; |
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/** |
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* Extract constructor. |
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* |
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* @param DatetimeConverter $converter |
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* @param StatisticsSource $source |
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*/ |
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public function __construct( |
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DatetimeConverter $converter, |
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StatisticsSource $source |
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) { |
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$this->source = $source; |
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$this->converter = $converter; |
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} |
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/** |
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* Extract listed events inside given timeframe. |
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* |
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* @param \DateTimeInterface $start |
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* @param \DateTimeInterface $end |
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* @param RangeInterface $range |
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* @param array $eventsInput |
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* @return Events |
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*/ |
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public function events( |
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\DateTimeInterface $start, |
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\DateTimeInterface $end, |
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RangeInterface $range, |
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array $eventsInput |
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): Events |
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{ |
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if (empty($eventsInput)) { |
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throw new EmptyExtractEventsException(); |
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} |
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$start = $this->converter->immutable($start); |
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$end = $this->converter->immutable($end); |
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//Swap start and end dates if incorrect |
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if ($start > $end) { |
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list($start, $end) = [$end, $start]; |
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} |
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$events = new Events($eventsInput); |
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$queried = $this->source->findExtract($start, $end, $eventsInput); |
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$lastDatetime = clone $start; |
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$row = $events->addRow($start->format($range->getFormat())); |
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/** @var Statistics $extracted */ |
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foreach ($queried as $extracted) { |
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$row = $this->fillGaps($lastDatetime, $extracted->timestamp, $events, $range) ?? $row; |
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$row->addEvent($extracted->name, $extracted->value); |
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} |
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$this->fillGaps($lastDatetime, $end, $events, $range); |
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return $events; |
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} |
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/** |
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* Add blank rows if between passed current datetime and passed end datetime can be placed |
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* blank rows without any events occurred. Return result is last filled row if gaps were |
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* filled or null. |
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* |
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* @param \DateTimeInterface|\DateTimeImmutable $current |
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* @param \DateTimeInterface $end |
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* @param Events $events |
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* @param RangeInterface $range |
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* @return Events\Row|null |
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*/ |
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protected function fillGaps( |
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\DateTimeInterface &$current, |
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\DateTimeInterface $end, |
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Events $events, |
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RangeInterface $range |
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) { |
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$lastRow = null; |
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$lastDatetimeConverted = $this->converter->convert($current, $range); |
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$endDatetimeConverted = $this->converter->convert($end, $range); |
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if ($lastDatetimeConverted < $endDatetimeConverted) { |
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//one of next intervals, need to add blank rows; |
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while ($lastDatetimeConverted < $endDatetimeConverted) { |
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$current = $current->add($range->getInterval()); |
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$lastDatetimeConverted = $this->converter->convert($current, $range); |
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$lastRow = $events->addRow($current->format($range->getFormat())); |
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} |
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} |
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return $lastRow; |
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} |
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} |
spiral-modules /
statistics
