Print counter in collection and update the readme

Author: carakas

README.md

@@ -126,9 +126,7 @@ If the submitted data is invalid the command will fail.
 
 - Provide example of stand-alone usage (no need to extend the command)
 - Maybe: provide a way to submit a form at once, possibly using a JSON-encoded array
-- Handle invalid form data (maybe in a loop)
 - Add more functional tests
 - Show form label of root form
 - Show nesting in form hierarchy using breadcrumbs
-- Show counter when looping through a collection form
 - When these things have been provided, release this as a package (or multiple packages for stand-alone use)

src/Bridge/Interaction/CollectionInteractor.php

@@ -69,7 +69,7 @@ public function interactWith(
         };
 
         foreach ((array) $form->getData() as $key => $entryData) {
-            $this->printEntryHeader($key, $output);
+            $this->printEditEntryHeader($key, $output);
             $prototype->setData($entryData);
 
             $submittedEntry = $this->formInteractor->interactWith($prototype, $helperSet, $input, $output);
@@ -79,7 +79,9 @@ public function interactWith(
         }
 
         if ($form->getConfig()->getOption('allow_add')) {
+            $key = count($submittedData) - 1;
             while ($this->askIfContinueToAdd($helperSet, $input, $output)) {
+                $this->printAddEntryHeader(++$key, $output);
                 $submittedData[] = $this->formInteractor->interactWith($prototype, $helperSet, $input, $output);
             }
         }
@@ -139,7 +141,7 @@ private function printHeader(FormInterface $form, OutputInterface $output)
      * @param int             $entryNumber
      * @param OutputInterface $output
      */
-    private function printEntryHeader($entryNumber, OutputInterface $output)
+    private function printEditEntryHeader($entryNumber, OutputInterface $output)
     {
         $output->writeln(
             strtr(
@@ -151,6 +153,22 @@ private function printEntryHeader($entryNumber, OutputInterface $output)
         );
     }
 
+    /**
+     * @param int             $entryNumber
+     * @param OutputInterface $output
+     */
+    private function printAddEntryHeader($entryNumber, OutputInterface $output)
+    {
+        $output->writeln(
+            strtr(
+                '<fieldset>Add entry {entryNumber}</fieldset>',
+                [
+                    '{entryNumber}' => $entryNumber,
+                ]
+            )
+        );
+    }
+
     /**
      * @param HelperSet       $helperSet
      * @param InputInterface  $input