[make:stimulus-controller] Add classes support, generate usage code, fix doc, add tests

config/help/MakeStimulusController.txt

@@ -1,5 +1,15 @@
-The <info>%command.name%</info> command generates new Stimulus Controller.
+The <info>%command.name%</info> command generates a new Stimulus controller.
 
 <info>php %command.full_name% hello</info>
 
-If the argument is missing, the command will ask for the controller name interactively.
+If the argument is missing, the command will ask for the controller name interactively.
+
+To generate a TypeScript file (instead of a JavaScript file) use the <info>--typescript</info> 
+(or <info>--ts</info>) option:
+
+<info>php %command.full_name% hello --typescript</info>
+
+It will also interactively ask for values, targets, classes to add to the Stimulus 
+controller (optional).
+
+<info>php %command.full_name%</info>

src/Maker/MakeStimulusController.php

@@ -19,6 +19,7 @@
 use Symfony\Component\Console\Command\Command;
 use Symfony\Component\Console\Input\InputArgument;
 use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Input\InputOption;
 use Symfony\Component\Console\Question\Question;
 use Symfony\UX\StimulusBundle\StimulusBundle;
 use Symfony\WebpackEncoreBundle\WebpackEncoreBundle;
@@ -44,25 +45,34 @@ public function configureCommand(Command $command, InputConfiguration $inputConf
     {
         $command
             ->addArgument('name', InputArgument::REQUIRED, 'The name of the Stimulus controller (e.g. <fg=yellow>hello</>)')
+            ->addOption('typescript', 'ts', InputOption::VALUE_NONE, 'Create a TypeScript controller (default is JavaScript)')
             ->setHelp($this->getHelpFileContents('MakeStimulusController.txt'))
         ;
+
+        $inputConfig->setArgumentAsNonInteractive('typescript');
     }
 
     public function interact(InputInterface $input, ConsoleStyle $io, Command $command): void
     {
         $command->addArgument('extension', InputArgument::OPTIONAL);
         $command->addArgument('targets', InputArgument::OPTIONAL);
         $command->addArgument('values', InputArgument::OPTIONAL);
+        $command->addArgument('classes', InputArgument::OPTIONAL);
+
+        if ($input->getOption('typescript')) {
+            $input->setArgument('extension', 'ts');
+        } else {
+            $chosenExtension = $io->choice(
+                'Language (<fg=yellow>JavaScript</> or <fg=yellow>TypeScript</>)',
+                [
+                    'js' => 'JavaScript',
+                    'ts' => 'TypeScript',
+                ],
+                'js',
+            );
 
-        $chosenExtension = $io->choice(
-            'Language (<fg=yellow>JavaScript</> or <fg=yellow>TypeScript</>)',
-            [
-                'js' => 'JavaScript',
-                'ts' => 'TypeScript',
-            ]
-        );
-
-        $input->setArgument('extension', $chosenExtension);
+            $input->setArgument('extension', $chosenExtension);
+        }
 
         if ($io->confirm('Do you want to include targets?')) {
             $targets = [];
@@ -98,16 +108,35 @@ public function interact(InputInterface $input, ConsoleStyle $io, Command $comma
 
             $input->setArgument('values', $values);
         }
+
+        if ($io->confirm('Do you want to add classes?', false)) {
+            $classes = [];
+            $isFirstClass = true;
+
+            while (true) {
+                $newClass = $this->askForNextClass($io, $classes, $isFirstClass);
+                if (null === $newClass) {
+                    break;
+                }
+
+                $isFirstClass = false;
+                $classes[] = $newClass;
+            }
+
+            $input->setArgument('classes', $classes);
+        }
     }
 
     public function generate(InputInterface $input, ConsoleStyle $io, Generator $generator): void
     {
         $controllerName = Str::asSnakeCase($input->getArgument('name'));
         $chosenExtension = $input->getArgument('extension');
-        $targets = $input->getArgument('targets');
-        $values = $input->getArgument('values');
+        $targets = $targetArgs = $input->getArgument('targets') ?? [];
+        $values = $valuesArg = $input->getArgument('values') ?? [];
+        $classes = $classesArgs = $input->getArgument('classes') ?? [];
 
         $targets = empty($targets) ? $targets : \sprintf("['%s']", implode("', '", $targets));
+        $classes = $classes ? \sprintf("['%s']", implode("', '", $classes)) : null;
 
         $fileName = \sprintf('%s_controller.%s', $controllerName, $chosenExtension);
         $filePath = \sprintf('assets/controllers/%s', $fileName);
@@ -118,6 +147,7 @@ public function generate(InputInterface $input, ConsoleStyle $io, Generator $gen
             [
                 'targets' => $targets,
                 'values' => $values,
+                'classes' => $classes,
             ]
         );
 
@@ -128,7 +158,12 @@ public function generate(InputInterface $input, ConsoleStyle $io, Generator $gen
         $io->text([
             'Next:',
             \sprintf('- Open <info>%s</info> and add the code you need', $filePath),
-            'Find the documentation at <fg=yellow>https://github.com/symfony/stimulus-bridge</>',
+            '- Use the controller in your templates:',
+            ...array_map(
+                fn (string $line): string => "    $line",
+                explode("\n", $this->generateUsageExample($controllerName, $targetArgs, $valuesArg, $classesArgs)),
+            ),
+            'Find the documentation at <fg=yellow>https://symfony.com/bundles/StimulusBundle</>',
         ]);
     }
 
@@ -215,6 +250,29 @@ private function askForNextValue(ConsoleStyle $io, array $values, bool $isFirstV
         return ['name' => $valueName, 'type' => $type];
     }
 
+    /** @param string[] $classes */
+    private function askForNextClass(ConsoleStyle $io, array $classes, bool $isFirstClass): ?string
+    {
+        $questionText = 'New class name (press <return> to stop adding classes)';
+
+        if (!$isFirstClass) {
+            $questionText = 'Add another class? Enter the class name (or press <return> to stop adding classes)';
+        }
+
+        $className = $io->ask($questionText, validator: function (?string $name) use ($classes) {
+            if (str_contains($name, ' ')) {
+                throw new \InvalidArgumentException('Class name cannot contain spaces.');
+            }
+            if (\in_array($name, $classes, true)) {
+                throw new \InvalidArgumentException(\sprintf('The "%s" class already exists.', $name));
+            }
+
+            return $name;
+        });
+
+        return $className ?: null;
+    }
+
     private function printAvailableTypes(ConsoleStyle $io): void
     {
         foreach ($this->getValuesTypes() as $type) {
@@ -234,6 +292,51 @@ private function getValuesTypes(): array
         ];
     }
 
+    /**
+     * @param array<int, string>                       $targets
+     * @param array<array{name: string, type: string}> $values
+     * @param array<int, string>                       $classes
+     */
+    private function generateUsageExample(string $name, array $targets, array $values, array $classes): string
+    {
+        $slugify = fn (string $name) => str_replace('_', '-', Str::asSnakeCase($name));
+        $controller = $slugify($name);
+
+        $htmlTargets = [];
+        foreach ($targets as $target) {
+            $htmlTargets[] = \sprintf('<div data-%s-target="%s"></div>', $controller, $target);
+        }
+
+        $htmlValues = [];
+        foreach ($values as ['name' => $name, 'type' => $type]) {
+            $value = match ($type) {
+                'Array' => '[]',
+                'Boolean' => 'false',
+                'Number' => '123',
+                'Object' => '{}',
+                'String' => 'abc',
+                default => '',
+            };
+            $htmlValues[] = \sprintf('data-%s-%s-value="%s"', $controller, $slugify($name), $value);
+        }
+
+        $htmlClasses = [];
+        foreach ($classes as $class) {
+            $value = Str::asLowerCamelCase($class);
+            $htmlClasses[] = \sprintf('data-%s-%s-class="%s"', $controller, $slugify($class), $value);
+        }
+
+        return \sprintf(
+            '<div data-controller="%s"%s%s%s>%s%s</div>',
+            $controller,
+            $htmlValues ? ("\n    ".implode("\n    ", $htmlValues)) : '',
+            $htmlClasses ? ("\n    ".implode("\n    ", $htmlClasses)) : '',
+            ($htmlValues || $htmlClasses) ? "\n" : '',
+            $htmlTargets ? ("\n        ".implode("\n        ", $htmlTargets)) : '',
+            "\n        <!-- ... -->\n",
+        );
+    }
+
     public function configureDependencies(DependencyBuilder $dependencies): void
     {
         // lower than 8.1, allow WebpackEncoreBundle

templates/stimulus/Controller.tpl.php

@@ -2,8 +2,9 @@
 
 /*
 * The following line makes this controller "lazy": it won't be downloaded until needed
-* See https://github.com/symfony/stimulus-bridge#lazy-controllers
+* See https://symfony.com/bundles/StimulusBundle/current/index.html#lazy-stimulus-controllers
 */
+
 /* stimulusFetch: 'lazy' */
 export default class extends Controller {
 <?= $targets ? "    static targets = $targets\n" : "" ?>
@@ -14,5 +15,33 @@
 <?php endforeach; ?>
     }
 <?php } ?>
-    // ...
+<?= $classes ? "    static classes = $classes\n" : '' ?>
+
+    initialize() {
+        // Called once when the controller is first instantiated (per element)
+
+        // Here you can initialize variables, create scoped callables for event
+        // listeners, instantiate external libraries, etc.
+        // this._fooBar = this.fooBar.bind(this)
+    }
+
+    connect() {
+        // Called every time the controller is connected to the DOM
+        // (on page load, when it's added to the DOM, moved in the DOM, etc.)
+
+        // Here you can add event listeners on the element or target elements,
+        // add or remove classes, attributes, dispatch custom events, etc.
+        // this.fooTarget.addEventListener('click', this._fooBar)
+    }
+
+    // Add custom controller actions here
+    // fooBar() { this.fooTarget.classList.toggle(this.bazClass) }
+
+    disconnect() {
+        // Called anytime its element is disconnected from the DOM
+        // (on page change, when it's removed from or moved in the DOM, etc.)
+
+        // Here you should remove all event listeners added in "connect()" 
+        // this.fooTarget.removeEventListener('click', this._fooBar)
+    }
 }