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<?php declare(strict_types=1); |
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namespace AlecRabbit\Spinner\Core; |
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use AlecRabbit\Accessories\Circular; |
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use AlecRabbit\Accessories\Pretty; |
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use AlecRabbit\ConsoleColour\ConsoleColor; |
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use AlecRabbit\Control\Cursor; |
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use AlecRabbit\Spinner\Contracts\SettingsInterface; |
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use AlecRabbit\Spinner\Contracts\SpinnerInterface; |
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use AlecRabbit\Spinner\Contracts\SpinnerSymbols; |
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use AlecRabbit\Spinner\Contracts\StylesInterface; |
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use function AlecRabbit\typeOf; |
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class Spinner implements SpinnerInterface |
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{ |
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protected const ERASING_SHIFT = 1; |
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protected const INTERVAL = 0.125; |
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protected const SYMBOLS = SpinnerSymbols::DIAMOND; |
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protected const NEW_STYLES = []; |
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/** @var string */ |
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protected $messageStr; |
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/** @var string */ |
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protected $percentStr = ''; |
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/** @var string */ |
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protected $percentPrefix; |
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/** @var string */ |
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protected $moveBackSequenceStr; |
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/** @var string */ |
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protected $inlinePaddingStr; |
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/** @var string */ |
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protected $eraseBySpacesStr; |
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/** @var Styles */ |
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protected $styles; |
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/** @var float */ |
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protected $interval; |
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/** @var int */ |
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protected $erasingShift; |
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/** @var Circular */ |
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protected $symbols; |
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/** |
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* AbstractSpinner constructor. |
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* @param mixed $settings |
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*/ |
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public function __construct($settings = null) |
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{ |
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$settings = $this->refineSettings($settings); |
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$this->interval = $settings->getInterval(); |
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$this->erasingShift = $settings->getErasingShift(); |
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$this->inlinePaddingStr = $settings->getInlinePaddingStr(); |
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$this->messageStr = $this->getMessageStr($settings); |
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$this->setFields(); |
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$this->symbols = new Circular($settings->getSymbols()); |
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try { |
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$this->styles = new Styles($settings->getStyles()); |
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} catch (\InvalidArgumentException $e) { |
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throw new \InvalidArgumentException( |
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'[' . static::class . '] ' . $e->getMessage(), |
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(int)$e->getCode(), |
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$e |
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); |
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} |
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} |
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/** |
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* @param mixed $settings |
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* @return Settings |
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*/ |
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protected function refineSettings($settings): Settings |
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{ |
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$this->assertSettings($settings); |
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if (\is_string($settings)) { |
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return |
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$this->defaultSettings()->setMessage($settings); |
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} |
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return |
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$settings ?? $this->defaultSettings(); |
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} |
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/** |
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* @param mixed $settings |
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*/ |
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protected function assertSettings($settings): void |
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{ |
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if (null !== $settings && !\is_string($settings) && !$settings instanceof SettingsInterface) { |
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throw new \InvalidArgumentException( |
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'Instance of SettingsInterface or string expected ' . typeOf($settings) . ' given.' |
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); |
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} |
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} |
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/** |
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* @return Settings |
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*/ |
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protected function defaultSettings(): Settings |
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{ |
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return |
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(new Settings()) |
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->setInterval(static::INTERVAL) |
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->setErasingShift(static::ERASING_SHIFT) |
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->setSymbols(static::SYMBOLS) |
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->setStyles(static::NEW_STYLES); |
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} |
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/** |
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* @param Settings $settings |
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* @return string |
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*/ |
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protected function getMessageStr(Settings $settings): string |
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{ |
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return $settings->getPrefix() . ucfirst($settings->getMessage()) . $settings->getSuffix(); |
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} |
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protected function setFields(): void |
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{ |
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$this->percentPrefix = $this->getPrefix(); |
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$strLen = |
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strlen($this->message()) + strlen($this->percent()) + strlen($this->inlinePaddingStr) + $this->erasingShift; |
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$this->moveBackSequenceStr = ConsoleColor::ESC_CHAR . "[{$strLen}D"; |
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$this->eraseBySpacesStr = str_repeat(SettingsInterface::ONE_SPACE_SYMBOL, $strLen); |
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} |
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/** |
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* @return string |
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*/ |
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protected function getPrefix(): string |
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{ |
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if (strpos($this->messageStr, SettingsInterface::DEFAULT_SUFFIX)) { |
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return SettingsInterface::ONE_SPACE_SYMBOL; |
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} |
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return SettingsInterface::EMPTY; |
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} |
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/** |
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* @return string |
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*/ |
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protected function message(): string |
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{ |
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return $this->messageStr; |
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} |
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/** |
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* @return string |
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*/ |
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protected function percent(): string |
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{ |
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return $this->percentStr; |
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} |
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public function interval(): float |
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{ |
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return $this->interval; |
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} |
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public function inline(bool $inline): SpinnerInterface |
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{ |
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$this->inlinePaddingStr = $inline ? SettingsInterface::ONE_SPACE_SYMBOL : SettingsInterface::EMPTY; |
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$this->setFields(); |
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return $this; |
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} |
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/** {@inheritDoc} */ |
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public function begin(?float $percent = null): string |
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{ |
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return Cursor::hide() . $this->spin($percent); |
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} |
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/** {@inheritDoc} */ |
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public function spin(?float $percent = null): string |
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{ |
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if (null !== $percent) { |
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$this->updatePercent($percent); |
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} |
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return |
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$this->inlinePaddingStr . |
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$this->styles->spinner((string)$this->symbols->value()) . |
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$this->styles->message( |
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$this->message() |
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) . |
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$this->styles->percent( |
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$this->percent() |
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) . |
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$this->moveBackSequenceStr; |
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} |
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/** |
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* @param float $percent |
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*/ |
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protected function updatePercent(float $percent): void |
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{ |
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if (0 === (int)($percent * 1000) % 10) { |
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$this->percentStr = Pretty::percent($percent, 0, $this->percentPrefix); |
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$this->setFields(); |
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} |
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} |
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/** {@inheritDoc} */ |
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public function end(): string |
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{ |
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return $this->erase() . Cursor::show(); |
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} |
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/** {@inheritDoc} */ |
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public function erase(): string |
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{ |
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return $this->eraseBySpacesStr . $this->moveBackSequenceStr; |
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} |
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} |
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alecrabbit /
php-console-spinner
