Merge pull request #59 from statamic/prompts

Prompts

composer.json

@@ -4,8 +4,9 @@
     "keywords": ["statamic"],
     "license": "MIT",
     "require": {
-        "php": ">=7.2.5",
+        "php": "^8.1",
         "guzzlehttp/guzzle": "^6.5.5|^7.0.1",
+        "laravel/prompts": "^0.1.3",
         "symfony/console": "^4.0|^5.0|^6.0",
         "symfony/process": "^4.2|^5.0|^6.0"
     },

src/Concerns/ConfiguresPrompts.php

@@ -0,0 +1,96 @@
+<?php
+
+namespace Statamic\Cli\Concerns;
+
+use Laravel\Prompts\ConfirmPrompt;
+use Laravel\Prompts\Prompt;
+use Laravel\Prompts\SelectPrompt;
+use Laravel\Prompts\SuggestPrompt;
+use Laravel\Prompts\TextPrompt;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Output\OutputInterface;
+use Symfony\Component\Console\Question\Question;
+use Symfony\Component\Console\Style\SymfonyStyle;
+
+trait ConfiguresPrompts
+{
+    /**
+     * Configure the prompt fallbacks.
+     *
+     * @return void
+     */
+    protected function configurePrompts(InputInterface $input, OutputInterface $output)
+    {
+        Prompt::fallbackWhen(! $input->isInteractive() || PHP_OS_FAMILY === 'Windows');
+
+        TextPrompt::fallbackUsing(fn (TextPrompt $prompt) => $this->promptUntilValid(
+            fn () => (new SymfonyStyle($input, $output))->ask($prompt->label, $prompt->default ?: null) ?? '',
+            $prompt->required,
+            $prompt->validate,
+            $output
+        ));
+
+        ConfirmPrompt::fallbackUsing(fn (ConfirmPrompt $prompt) => $this->promptUntilValid(
+            fn () => (new SymfonyStyle($input, $output))->confirm($prompt->label, $prompt->default),
+            $prompt->required,
+            $prompt->validate,
+            $output
+        ));
+
+        SelectPrompt::fallbackUsing(fn (SelectPrompt $prompt) => $this->promptUntilValid(
+            fn () => (new SymfonyStyle($input, $output))->choice($prompt->label, $prompt->options, $prompt->default),
+            false,
+            $prompt->validate,
+            $output
+        ));
+
+        SuggestPrompt::fallbackUsing(fn (SuggestPrompt $prompt) => $this->promptUntilValid(
+            function () use ($prompt, $input, $output) {
+                $question = new Question($prompt->label, $prompt->default);
+
+                is_callable($prompt->options)
+                    ? $question->setAutocompleterCallback($prompt->options)
+                    : $question->setAutocompleterValues($prompt->options);
+
+                return (new SymfonyStyle($input, $output))->askQuestion($question);
+            },
+            $prompt->required,
+            $prompt->validate,
+            $output
+        ));
+    }
+
+    /**
+     * Prompt the user until the given validation callback passes.
+     *
+     * @param  \Closure  $prompt
+     * @param  bool|string  $required
+     * @param  \Closure|null  $validate
+     * @param  \Symfony\Component\Console\Output\OutputInterface  $output
+     * @return mixed
+     */
+    protected function promptUntilValid($prompt, $required, $validate, $output)
+    {
+        while (true) {
+            $result = $prompt();
+
+            if ($required && ($result === '' || $result === [] || $result === false)) {
+                $output->writeln('<error>'.(is_string($required) ? $required : 'Required.').'</error>');
+
+                continue;
+            }
+
+            if ($validate) {
+                $error = $validate($result);
+
+                if (is_string($error) && strlen($error) > 0) {
+                    $output->writeln("<error>{$error}</error>");
+
+                    continue;
+                }
+            }
+
+            return $result;
+        }
+    }
+}