Fetch information for local images

src/Actions/FindsContentLengthForImageObject.php

@@ -4,6 +4,7 @@
 
 use Hyde\Framework\Contracts\ActionContract;
 use Hyde\Framework\Models\Image;
+use Symfony\Component\Console\Output\OutputInterface;
 
 /**
  * @see \Tests\Feature\FindsContentLengthForImageObjectTest
@@ -12,13 +13,63 @@ class FindsContentLengthForImageObject implements ActionContract
 {
     protected Image $image;
 
+    /**
+     * Testing adding console debug output
+     */
+    protected OutputInterface $output;
+
     public function __construct(Image $image)
     {
         $this->image = $image;
+
+        $this->output = new \Symfony\Component\Console\Output\ConsoleOutput();
     }
 
     public function execute(): int
     {
+        $this->output->writeln('Attempting to find content length for image object...');
+
+        if ($this->isImageStoredRemotely()) {
+            return $this->fetchRemoteImageInformation();
+        }
+
+        return $this->fetchLocalImageInformation();
+    }
+
+    protected function isImageStoredRemotely(): bool
+    {
+        return str_starts_with($this->image->getSource(), 'http');
+    }
+
+    protected function fetchRemoteImageInformation(): int
+    {
+        $this->output->writeln('Fetching remote image information...');
+
+        $headers = get_headers($this->image->getSource(), 1);
+
+        if (array_key_exists('Content-Length', $headers)) {
+            $this->output->writeln('Found content length in headers.');
+
+            return (int) $headers['Content-Length'];
+        }
+
+        $this->output->writeln('Could not find content length in headers.');
+
         return 0;
+    }   
+
+    protected function fetchLocalImageInformation(): int
+    {
+        $this->output->writeln('Fetching local image information...');
+
+        if (! file_exists($this->image->getSource())) {
+            $this->output->writeln('Could not find image file.');
+
+            return 0;
+        }
+
+        $this->output->writeln('Found image file.');
+
+        return filesize($this->image->getSource());
     }
 }

tests/Feature/FindsContentLengthForImageObjectTest.php

@@ -11,7 +11,6 @@
  */
 class FindsContentLengthForImageObjectTest extends TestCase
 {
-    // Test Image helper shorthand returns content length
     /**
      * Unit test for the shorthand. Logic is tested in the rest of the case.
      * @covers \Hyde\Framework\Models\Image::getContentLength
@@ -22,4 +21,18 @@ public function test_image_helper_shorthand_returns_content_length()
             (new Image())->getContentLength()
         );
     }
+
+    // Test it can find the content length for a local image stored in the _media directory.
+    public function test_it_can_find_the_content_length_for_a_local_image_stored_in_the_media_directory()
+    {
+        $image = new Image();
+        $image->path = '_media/image.jpg';
+        file_put_contents($image->path, '16bytelongstring');
+
+        $this->assertEquals(
+            16, $image->getContentLength()
+        );
+
+        unlink($image->path);
+    }
 }