From 44c7677619c163fb7ee968b1d68d68c7d3a5f172 Mon Sep 17 00:00:00 2001
From: Ryan Weaver <ryan@thatsquality.com>
Date: Thu, 20 Apr 2023 21:00:42 -0400
Subject: [PATCH] [Asset] [AssetMapper] New AssetMapper component: Map assets
 to publicly available, versioned paths

---
 Extension/ImportMapExtension.php           | 28 +++++++++++++
 Extension/ImportMapRuntime.php             | 29 +++++++++++++
 Tests/Extension/ImportMapExtensionTest.php | 49 ++++++++++++++++++++++
 composer.json                              |  1 +
 4 files changed, 107 insertions(+)
 create mode 100644 Extension/ImportMapExtension.php
 create mode 100644 Extension/ImportMapRuntime.php
 create mode 100644 Tests/Extension/ImportMapExtensionTest.php

diff --git a/Extension/ImportMapExtension.php b/Extension/ImportMapExtension.php
new file mode 100644
index 00000000..2156c74d
--- /dev/null
+++ b/Extension/ImportMapExtension.php
@@ -0,0 +1,28 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Bridge\Twig\Extension;
+
+use Twig\Extension\AbstractExtension;
+use Twig\TwigFunction;
+
+/**
+ * @author Kévin Dunglas <kevin@dunglas.dev>
+ */
+final class ImportMapExtension extends AbstractExtension
+{
+    public function getFunctions(): array
+    {
+        return [
+            new TwigFunction('importmap', [ImportMapRuntime::class, 'importmap'], ['is_safe' => ['html']]),
+        ];
+    }
+}
diff --git a/Extension/ImportMapRuntime.php b/Extension/ImportMapRuntime.php
new file mode 100644
index 00000000..aa5097d3
--- /dev/null
+++ b/Extension/ImportMapRuntime.php
@@ -0,0 +1,29 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Bridge\Twig\Extension;
+
+use Symfony\Component\AssetMapper\ImportMap\ImportMapRenderer;
+
+/**
+ * @author Kévin Dunglas <kevin@dunglas.dev>
+ */
+class ImportMapRuntime
+{
+    public function __construct(private readonly ImportMapRenderer $importMapRenderer)
+    {
+    }
+
+    public function importmap(?string $entryPoint = 'app'): string
+    {
+        return $this->importMapRenderer->render($entryPoint);
+    }
+}
diff --git a/Tests/Extension/ImportMapExtensionTest.php b/Tests/Extension/ImportMapExtensionTest.php
new file mode 100644
index 00000000..26a572e1
--- /dev/null
+++ b/Tests/Extension/ImportMapExtensionTest.php
@@ -0,0 +1,49 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Extension;
+
+use PHPUnit\Framework\TestCase;
+use Symfony\Bridge\Twig\Extension\ImportMapExtension;
+use Symfony\Bridge\Twig\Extension\ImportMapRuntime;
+use Symfony\Component\AssetMapper\ImportMap\ImportMapRenderer;
+use Twig\Environment;
+use Twig\Loader\ArrayLoader;
+use Twig\RuntimeLoader\RuntimeLoaderInterface;
+
+class ImportMapExtensionTest extends TestCase
+{
+    public function testItRendersTheImportmap()
+    {
+        $twig = new Environment(new ArrayLoader([
+            'template' => '{{ importmap("application") }}',
+        ]), ['debug' => true, 'cache' => false, 'autoescape' => 'html', 'optimizations' => 0]);
+        $twig->addExtension(new ImportMapExtension());
+        $importMapRenderer = $this->createMock(ImportMapRenderer::class);
+        $expected = '<script type="importmap">{ "imports": {}}</script>';
+        $importMapRenderer->expects($this->once())
+            ->method('render')
+            ->with('application')
+            ->willReturn($expected);
+        $runtime = new ImportMapRuntime($importMapRenderer);
+
+        $mockRuntimeLoader = $this->createMock(RuntimeLoaderInterface::class);
+        $mockRuntimeLoader
+            ->method('load')
+            ->willReturnMap([
+                [ImportMapRuntime::class, $runtime],
+            ])
+        ;
+        $twig->addRuntimeLoader($mockRuntimeLoader);
+
+        $this->assertSame($expected, $twig->render('template'));
+    }
+}
diff --git a/composer.json b/composer.json
index 8cf462fe..cac49224 100644
--- a/composer.json
+++ b/composer.json
@@ -26,6 +26,7 @@
         "league/html-to-markdown": "^5.0",
         "phpdocumentor/reflection-docblock": "^3.0|^4.0|^5.0",
         "symfony/asset": "^5.4|^6.0",
+        "symfony/asset-mapper": "^6.3",
         "symfony/dependency-injection": "^5.4|^6.0",
         "symfony/finder": "^5.4|^6.0",
         "symfony/form": "^6.3",