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<?php |
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namespace Weew\Console\Helpers; |
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use Weew\Console\IInput; |
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use Weew\Console\IOutput; |
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class PromptHelper { |
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/** |
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* @var IInput |
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*/ |
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private $input; |
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/** |
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* @var IOutput |
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*/ |
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private $output; |
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/** |
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* PromptHelper constructor. |
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* |
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* @param IInput $input |
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* @param IOutput $output |
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*/ |
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public function __construct(IInput $input, IOutput $output) { |
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$this->input = $input; |
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$this->output = $output; |
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} |
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/** |
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* @param $string |
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* @param string $default |
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* |
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* @return null|string |
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*/ |
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public function prompt($string, $default = null) { |
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if ($default !== null) { |
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$suffix = (string) $default; |
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$question = "<question>$string</question> [<yellow>$suffix</yellow>]: "; |
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} else { |
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$question = "<question>$string</question>: "; |
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} |
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$this->output->write($question); |
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$input = $this->input->readLine(); |
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if (strlen($input) == 0) { |
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$input = $default; |
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} |
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if ($input === null) { |
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return $this->prompt($string, $default); |
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} |
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return $input; |
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} |
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/** |
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* @param $string |
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* @param bool $default |
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* |
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* @return bool |
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*/ |
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public function ask($string, $default = null) { |
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if ($default === true) { |
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$suffix = 'Y/n'; |
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} else if ($default === false) { |
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$suffix = 'y/N'; |
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} else { |
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$suffix = 'y/n'; |
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} |
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$this->output->write( |
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"<question>$string</question> [<yellow>$suffix</yellow>]: " |
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); |
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$input = $this->input->readLine(); |
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if (array_contains(['yes', 'y'], $input)) { |
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return true; |
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} |
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if (array_contains(['no', 'n'], $input)) { |
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return false; |
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} |
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if (empty($input)) { |
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if ($default === true) { |
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return true; |
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} |
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if ($default === false) { |
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return false; |
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} |
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} |
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return $this->ask($string, $default); |
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} |
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/** |
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* @param string $string |
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* @param array $choices |
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* @param bool $useChoiceKeysAsSelector |
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* |
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* @return mixed |
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*/ |
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public function choose($string, array $choices, $useChoiceKeysAsSelector = false) { |
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$this->output->writeLine("<question>$string</question>"); |
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$choicesMap = []; |
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foreach ($choices as $subject => $message) { |
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if ($useChoiceKeysAsSelector) { |
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$index = $subject; |
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} else { |
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$index = count($choicesMap) + 1; |
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} |
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$choicesMap[$index] = [ |
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'subject' => $subject, |
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'message' => $message, |
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]; |
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} |
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foreach ($choicesMap as $index => $choice) { |
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$message = array_get($choice, 'message'); |
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$this->output->writeLineIndented("[<yellow>$index</yellow>] $message"); |
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} |
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$choice = null; |
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while (true) { |
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$this->output->writeIndented('Choice: '); |
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$input = $this->input->readLine(); |
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if (array_has($choicesMap, $input)) { |
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$choice = array_get(array_get($choicesMap, $input), 'subject'); |
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break; |
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} |
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if ( ! empty($input)) { |
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$this->output->writeLineIndented('<yellow>Invalid choice</yellow>'); |
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} |
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} |
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return $choice; |
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} |
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} |
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weew /
console
