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<?php |
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declare(strict_types=1); |
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namespace AlecRabbit\Spinner\Core; |
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use AlecRabbit\Spinner\Contract\ISubject; |
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use AlecRabbit\Spinner\Contract\Option\OptionLinker; |
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use AlecRabbit\Spinner\Core\Contract\IDriver; |
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use AlecRabbit\Spinner\Core\Contract\IDriverLinker; |
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use AlecRabbit\Spinner\Core\Contract\Loop\Contract\ILoop; |
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use AlecRabbit\Spinner\Exception\LogicException; |
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final class DriverLinker implements IDriverLinker |
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{ |
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private mixed $timer = null; |
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private ?IDriver $driver = null; |
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public function __construct( |
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private readonly ILoop $loop, |
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private readonly OptionLinker $optionLinker, |
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) { |
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} |
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public function link(IDriver $driver): void |
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{ |
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$this->assertDriver($driver); |
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if ($this->optionLinker === OptionLinker::ENABLED) { |
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$this->linkTimer($driver); |
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if ($this->driver === null) { |
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$this->observe($driver); |
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} |
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} |
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} |
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private function assertDriver(IDriver $driver): void |
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{ |
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if ($this->driver === null || $this->driver === $driver) { |
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return; |
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} |
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throw new LogicException( |
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'Other instance of Driver is already linked.' |
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); |
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} |
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private function linkTimer(IDriver $driver): void |
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{ |
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$this->unlinkTimer(); |
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$interval = $driver->getInterval()->toSeconds(); |
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$this->timer = |
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$this->loop->repeat( |
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$interval, |
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static fn() => $driver->render() |
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); |
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} |
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private function unlinkTimer(): void |
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{ |
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if ($this->timer) { |
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$this->loop->cancel($this->timer); |
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$this->timer = null; |
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} |
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} |
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private function observe(IDriver $driver): void |
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{ |
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$this->driver = $driver; |
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$driver->attach($this); |
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} |
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public function update(ISubject $subject): void |
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{ |
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if ($subject === $this->driver) { |
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$this->linkTimer($subject); |
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} |
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} |
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} |
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alecrabbit /
php-console-spinner
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