Chris@0: <?php
Chris@0: 
Chris@0: namespace DrupalCodeGenerator\Helper;
Chris@0: 
Chris@0: use DrupalCodeGenerator\Utils;
Chris@0: use Symfony\Component\Console\Exception\InvalidOptionException;
Chris@0: use Symfony\Component\Console\Helper\Helper;
Chris@0: use Symfony\Component\Console\Input\InputInterface;
Chris@0: use Symfony\Component\Console\Output\OutputInterface;
Chris@0: use Symfony\Component\Console\Question\ChoiceQuestion;
Chris@0: use Symfony\Component\Console\Question\ConfirmationQuestion;
Chris@0: use Symfony\Component\Console\Question\Question;
Chris@0: 
Chris@0: /**
Chris@0:  * Generator input handler.
Chris@0:  */
Chris@0: class InputHandler extends Helper {
Chris@0: 
Chris@0:   use QuestionSettersTrait;
Chris@0: 
Chris@0:   /**
Chris@0:    * {@inheritdoc}
Chris@0:    */
Chris@0:   public function getName() {
Chris@0:     return 'dcg_input_handler';
Chris@0:   }
Chris@0: 
Chris@5:   protected $askedQuestions = [];
Chris@5: 
Chris@0:   /**
Chris@0:    * Interacts with the user and returns variables for templates.
Chris@0:    *
Chris@0:    * @param \Symfony\Component\Console\Input\InputInterface $input
Chris@0:    *   Input instance.
Chris@0:    * @param \Symfony\Component\Console\Output\OutputInterface $output
Chris@0:    *   Output instance.
Chris@0:    * @param \Symfony\Component\Console\Question\Question[] $questions
Chris@0:    *   List of questions that the user should answer.
Chris@0:    * @param array $vars
Chris@0:    *   Array of predefined template variables.
Chris@0:    *
Chris@0:    * @return array
Chris@0:    *   Template variables.
Chris@0:    */
Chris@0:   public function collectVars(InputInterface $input, OutputInterface $output, array $questions, array $vars = []) {
Chris@0: 
Chris@0:     // A user can pass answers through the command line option.
Chris@0:     $answers = NULL;
Chris@0:     if ($answers_raw = $input->getOption('answers')) {
Chris@0:       $answers = json_decode($answers_raw, TRUE);
Chris@0:       if (!is_array($answers)) {
Chris@0:         throw new InvalidOptionException('Answers should be encoded in JSON format.');
Chris@0:       }
Chris@0:     }
Chris@0: 
Chris@0:     /** @var \Symfony\Component\Console\Helper\QuestionHelper $question_helper */
Chris@0:     $question_helper = $this->getHelperSet()->get('question');
Chris@0: 
Chris@0:     /** @var \DrupalCodeGenerator\Command\GeneratorInterface $command */
Chris@0:     $command = $this->getHelperSet()->getCommand();
Chris@0:     $directory = $command->getDirectory();
Chris@0: 
Chris@0:     foreach ($questions as $name => $question) {
Chris@5: 
Chris@5:       if (in_array($name, $this->askedQuestions)) {
Chris@5:         continue;
Chris@5:       }
Chris@5:       $this->askedQuestions[] = $name;
Chris@5: 
Chris@0:       /** @var \Symfony\Component\Console\Question\Question $question */
Chris@0:       $default_value = $question->getDefault();
Chris@0: 
Chris@0:       // Make some assumptions based on question name.
Chris@0:       if ($default_value === NULL) {
Chris@0:         switch ($name) {
Chris@0:           case 'name':
Chris@0:             $root_directory = basename(Utils::getExtensionRoot($directory) ?: $directory);
Chris@0:             $default_value = Utils::machine2human($root_directory);
Chris@0:             break;
Chris@0: 
Chris@0:           case 'machine_name':
Chris@0:             $default_value = function (array $vars) use ($directory) {
Chris@0:               return Utils::human2machine(isset($vars['name']) ? $vars['name'] : basename($directory));
Chris@0:             };
Chris@0:             break;
Chris@0:         }
Chris@0:       }
Chris@0: 
Chris@0:       // Turn the callback into a value acceptable for Symfony question helper.
Chris@0:       if (is_callable($default_value)) {
Chris@0:         // Do not treat simple strings as callable because they may match PHP
Chris@0:         // builtin functions.
Chris@0:         if (!is_string($default_value) || strpos('::', $default_value) !== FALSE) {
Chris@0:           $default_value = call_user_func($default_value, $vars);
Chris@0:         }
Chris@0:       }
Chris@0:       // Default value may have tokens.
Chris@0:       $default_value = Utils::tokenReplace($default_value, $vars);
Chris@0:       $this->setQuestionDefault($question, $default_value);
Chris@0: 
Chris@0:       if ($answers) {
Chris@0:         if (array_key_exists($name, $answers)) {
Chris@0:           $answer = $answers[$name];
Chris@4:           // Validate provided answer.
Chris@4:           if ($validator = $question->getValidator()) {
Chris@4:             $validator($answer);
Chris@4:           }
Chris@0:           // Turn 'yes/no' string into boolean.
Chris@0:           if ($question instanceof ConfirmationQuestion && !is_bool($answer)) {
Chris@0:             $answer = strcasecmp($answer, 'yes') == 0;
Chris@0:           }
Chris@0:         }
Chris@0:         else {
Chris@0:           $answer = $default_value;
Chris@0:         }
Chris@0:       }
Chris@0:       else {
Chris@0:         $this->formatQuestionText($question);
Chris@0:         $answer = $question_helper->ask($input, $output, $question);
Chris@0:       }
Chris@0: 
Chris@0:       $vars[$name] = $answer;
Chris@0:     }
Chris@0: 
Chris@0:     return $vars;
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * Formats question text.
Chris@0:    *
Chris@0:    * @param \Symfony\Component\Console\Question\Question $question
Chris@0:    *   The question.
Chris@0:    */
Chris@0:   protected function formatQuestionText(Question $question) {
Chris@0:     $question_text = $question->getQuestion();
Chris@0:     $default_value = $question->getDefault();
Chris@0: 
Chris@0:     $question_text = "\n <info>$question_text</info>";
Chris@0:     if (is_bool($default_value)) {
Chris@0:       $default_value = $default_value ? 'Yes' : 'No';
Chris@0:     }
Chris@0:     if ($default_value) {
Chris@0:       $question_text .= " [<comment>$default_value</comment>]";
Chris@0:     }
Chris@0:     $question_text .= ":";
Chris@0:     if ($question instanceof ChoiceQuestion) {
Chris@0:       $question->setPrompt('  ➤➤➤ ');
Chris@0:     }
Chris@0:     else {
Chris@0:       $question_text .= "\n ➤ ";
Chris@0:     }
Chris@0: 
Chris@0:     $this->setQuestionText($question, $question_text);
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * Normalizes questions.
Chris@0:    *
Chris@0:    * @param \Symfony\Component\Console\Question\Question[] $questions
Chris@0:    *   Questions to normalize.
Chris@0:    *
Chris@0:    * @return \Symfony\Component\Console\Question\Question[]
Chris@0:    *   Normalized questions
Chris@0:    *
Chris@0:    * @deprecated
Chris@0:    *  Use Symfony\Component\Console\Question\Question to define questions.
Chris@0:    *
Chris@0:    * @codeCoverageIgnore
Chris@0:    */
Chris@0:   protected function normalizeQuestions(array $questions) {
Chris@0:     return array_map(function ($question) {
Chris@0:       // Support array syntax.
Chris@0:       if (is_array($question)) {
Chris@0:         if (count($question) > 2) {
Chris@0:           throw new \OutOfBoundsException('The question array is too long.');
Chris@0:         }
Chris@0:         list($question_text, $default_value) = array_pad($question, 2, NULL);
Chris@0:         $question = new Question($question_text, $default_value);
Chris@0:       }
Chris@0:       return $question;
Chris@0:     }, $questions);
Chris@0:   }
Chris@0: 
Chris@0: }