handle etags

src/Cache/Control/GeneratesEtagInterface.php

@@ -4,5 +4,5 @@
 
 interface GeneratesEtagInterface
 {
-	public function getEtagComponents(): array;
+	public function getEtagComponents(array $context): array;
 }

src/Hooks/Api/Invoker.php

@@ -110,7 +110,7 @@ public function process(ServerRequestInterface $request, ResponseInterface $resp
 		}
 
 		if ($component instanceof GeneratesEtagInterface) {
-			$response = $response->withHeader("ETag", $etag = "W\\" . md5(implode($component->getEtagComponents())));
+			$response = $response->withHeader("ETag", $etag = "W\\" . md5(implode('', $component->getEtagComponents($arguments))));
 			if(($_SERVER['HTTP_IF_NONE_MATCH'] ?? null) && $etag === $_SERVER['HTTP_IF_NONE_MATCH']) {
 				return $response->withStatus(304)->withHeader('Cache-Control', $tokenizer->render());
 			}

src/Hooks/Html/Renderer.php

@@ -42,6 +42,14 @@ public function process(ServerRequestInterface $request, ResponseInterface $resp
 		$root = $this->container->make($this->root);
 		$rendered = $this->container->call($root->render(...));
 		$rendered = $this->compiler->compile($rendered);
+
+		if(!empty($this->compiler->etagDescription)) {
+			$response = $response->withHeader('ETag', $etag = "W\\".md5(implode("", $this->compiler->etagDescription)));
+			if(($_SERVER['HTTP_IF_NONE_MATCH'] ?? null) && $etag === $_SERVER['HTTP_IF_NONE_MATCH']) {
+				return $response->withStatus(304)->withHeader('Cache-Control', $this->compiler->tokenizer->render());
+			}
+		}
+
 		return $response->withBody($this->psr17Factory->createStream($rendered))->withHeader('Cache-Control', $this->compiler->tokenizer->render());
 	}
 }

src/Template/Parser/StreamingCompiler.php

@@ -3,6 +3,7 @@
 namespace Bottledcode\SwytchFramework\Template\Parser;
 
 use Bottledcode\SwytchFramework\Cache\AbstractCache;
+use Bottledcode\SwytchFramework\Cache\Control\GeneratesEtagInterface;
 use Bottledcode\SwytchFramework\Cache\Control\Tokenizer;
 use Bottledcode\SwytchFramework\Template\Functional\DataProvider;
 use Bottledcode\SwytchFramework\Template\Functional\RewritingTag;
@@ -47,6 +48,8 @@ class StreamingCompiler
 	private int $fragmentLength = 0;
 	private bool $shallow = false;
 
+	public array $etagDescription = [];
+
 	public function __construct(
 		public FactoryInterface $factory,
 		private EscaperInterface $blobber,
@@ -792,6 +795,11 @@ private function renderComponent(Document $document): Document
 		}
 
 		$rendering = $component->renderToString($this->attributes);
+
+		if($component->rawComponent instanceof GeneratesEtagInterface) {
+			$this->etagDescription = array_merge_recursive($this->etagDescription, $component->rawComponent->getEtagComponents($this->attributes));
+		}
+
 		$rendering = $this->blobber->makeBlobs($rendering);
 		// stupid hack to get around the fact that we are lexigraphically parsing the document instead
 		// of creating a tree.