From 1556573f29cbf45f76baf3e2efbecb08228741cd Mon Sep 17 00:00:00 2001
From: Quentin Gabriele <quentin.gabriele@gmail.com>
Date: Tue, 23 Jan 2024 18:21:58 +0100
Subject: [PATCH] fix zipping

---
 src/MediaZipper.php                    | 40 ++++++++++++++++++++------
 src/Traits/InteractsWithMediaFiles.php |  2 +-
 2 files changed, 33 insertions(+), 9 deletions(-)

diff --git a/src/MediaZipper.php b/src/MediaZipper.php
index 013d065..2247703 100644
--- a/src/MediaZipper.php
+++ b/src/MediaZipper.php
@@ -7,6 +7,7 @@
 use Illuminate\Contracts\Support\Responsable;
 use Illuminate\Support\Collection;
 use Symfony\Component\HttpFoundation\StreamedResponse;
+use ZipStream\OperationMode;
 use ZipStream\ZipStream;
 
 class MediaZipper implements Responsable
@@ -23,10 +24,12 @@ public function toFile(Filesystem $storage, string $path, array $options = []):
     {
         $temporaryStream = fopen('php://memory', 'w+');
 
-        $this->getZipStream([
+        $zip = $this->getZipStream([
             'outputStream' => $temporaryStream,
         ]);
 
+        $zip->finish();
+
         $success = $storage->writeStream($path, $temporaryStream, $options);
 
         fclose($temporaryStream);
@@ -36,10 +39,10 @@ public function toFile(Filesystem $storage, string $path, array $options = []):
 
     public function getZipStream(array $options = [])
     {
-        $zip = new ZipStream(
-            ...$this->zipStreamOptions,
-            ...$options,
-        );
+        $zip = new ZipStream(...array_merge(
+            $this->zipStreamOptions,
+            $options
+        ));
 
         /** @var Media $item */
         foreach ($this->media as $index => $item) {
@@ -56,16 +59,37 @@ public function getZipStream(array $options = [])
             }
         }
 
-        $zip->finish();
-
         return $zip;
     }
 
+    public function getSize(): int
+    {
+        return (int) $this->media->sum('size');
+    }
+
     public function toResponse($request): StreamedResponse
     {
-        return new StreamedResponse(fn () => $this->getZipStream(), 200, [
+        $simulation = $this->getZipStream([
+            'defaultEnableZeroHeader' => true,
+            'sendHttpHeaders' => false,
+            'contentType' => 'application/octet-stream',
+            'operationMode' => OperationMode::SIMULATE_STRICT, // or SIMULATE_LAX
+        ]);
+
+        $size = $simulation->finish();
+
+        return new StreamedResponse(function () {
+            $zip = $this->getZipStream([
+                'defaultEnableZeroHeader' => true,
+                'contentType' => 'application/octet-stream',
+            ]);
+
+            $zip->finish();
+
+        }, 200, [
             'Content-Disposition' => "attachment; filename=\"{$this->fileName}\"",
             'Content-Type' => 'application/octet-stream',
+            'Content-Length' => $size,
         ]);
     }
 }
diff --git a/src/Traits/InteractsWithMediaFiles.php b/src/Traits/InteractsWithMediaFiles.php
index e2074d4..f168cd1 100644
--- a/src/Traits/InteractsWithMediaFiles.php
+++ b/src/Traits/InteractsWithMediaFiles.php
@@ -17,7 +17,7 @@
 /**
  * @property ?string $disk
  * @property ?string $path
- * @property ?int $size
+ * @property ?int $size The filesize in bytes
  * @property ?float $duration in miliseconds
  */
 trait InteractsWithMediaFiles