From 6115362c07536d108f0bb1efb311c2aea17e3825 Mon Sep 17 00:00:00 2001
From: Paulo Castellano <paulo@castellanos.llc>
Date: Sat, 11 Jul 2026 09:29:39 -0300
Subject: [PATCH] Read Pinterest pin alt text from the image, not per-platform
 meta

---
 app/Services/Social/PinterestPublisher.php    |  6 +-
 .../Social/PinterestPublisherTest.php         | 97 +++++++++++++++++++
 2 files changed, 101 insertions(+), 2 deletions(-)

diff --git a/app/Services/Social/PinterestPublisher.php b/app/Services/Social/PinterestPublisher.php
index b56f0b97..8e7b087f 100644
--- a/app/Services/Social/PinterestPublisher.php
+++ b/app/Services/Social/PinterestPublisher.php
@@ -119,8 +119,10 @@ private function publishImagePin(PostPlatform $postPlatform, ?string $content):
             $payload['link'] = data_get($postPlatform->meta, 'link');
         }
 
-        if (! empty(data_get($postPlatform->meta, 'alt_text'))) {
-            $payload['alt_text'] = substr(data_get($postPlatform->meta, 'alt_text'), 0, 500);
+        $alt = $postPlatform->post->mediaItems->first(fn ($m) => $m->isImage())?->altText();
+
+        if ($alt !== null) {
+            $payload['alt_text'] = mb_substr($alt, 0, Platform::Pinterest->altTextMaxLength());
         }
 
         $response = $this->socialHttp()->withToken($account->access_token)
diff --git a/tests/Feature/Services/Social/PinterestPublisherTest.php b/tests/Feature/Services/Social/PinterestPublisherTest.php
index 7f727115..c39e1ffd 100644
--- a/tests/Feature/Services/Social/PinterestPublisherTest.php
+++ b/tests/Feature/Services/Social/PinterestPublisherTest.php
@@ -405,6 +405,103 @@
     });
 });
 
+test('pinterest publisher sends alt text from image meta capped to platform max', function () {
+    $longAlt = str_repeat('x', 600);
+
+    $this->post->update([
+        'media' => [
+            [
+                'id' => 'test-media-id',
+                'path' => 'media/2026-01/image.jpg',
+                'url' => 'https://example.com/media/2026-01/image.jpg',
+                'mime_type' => 'image/jpeg',
+                'original_filename' => 'image.jpg',
+                'meta' => ['alt_text' => $longAlt],
+            ],
+        ],
+    ]);
+
+    Http::fake([
+        '*/v5/pins' => Http::response([
+            'id' => 'pin_123456',
+        ], 200),
+        '*' => Http::response('fake-image-content', 200),
+    ]);
+
+    $this->publisher->publish($this->postPlatform);
+
+    $expectedAlt = mb_substr($longAlt, 0, Platform::Pinterest->altTextMaxLength());
+
+    Http::assertSent(function ($request) use ($expectedAlt) {
+        return str_contains($request->url(), '/v5/pins')
+            && data_get($request->data(), 'alt_text') === $expectedAlt
+            && strlen($expectedAlt) === Platform::Pinterest->altTextMaxLength();
+    });
+});
+
+test('pinterest publisher omits alt_text when image has no alt text set', function () {
+    $this->post->update([
+        'media' => [
+            [
+                'id' => 'test-media-id',
+                'path' => 'media/2026-01/image.jpg',
+                'url' => 'https://example.com/media/2026-01/image.jpg',
+                'mime_type' => 'image/jpeg',
+                'original_filename' => 'image.jpg',
+            ],
+        ],
+    ]);
+
+    Http::fake([
+        '*/v5/pins' => Http::response([
+            'id' => 'pin_123456',
+        ], 200),
+        '*' => Http::response('fake-image-content', 200),
+    ]);
+
+    $this->publisher->publish($this->postPlatform);
+
+    Http::assertSent(function ($request) {
+        return str_contains($request->url(), '/v5/pins')
+            && ! array_key_exists('alt_text', $request->data());
+    });
+});
+
+test('pinterest publisher ignores postPlatform meta alt_text and only reads image alt', function () {
+    $this->postPlatform->update([
+        'meta' => [
+            'board_id' => 'board_123',
+            'alt_text' => 'legacy per-platform alt text that should be ignored',
+        ],
+    ]);
+
+    $this->post->update([
+        'media' => [
+            [
+                'id' => 'test-media-id',
+                'path' => 'media/2026-01/image.jpg',
+                'url' => 'https://example.com/media/2026-01/image.jpg',
+                'mime_type' => 'image/jpeg',
+                'original_filename' => 'image.jpg',
+            ],
+        ],
+    ]);
+
+    Http::fake([
+        '*/v5/pins' => Http::response([
+            'id' => 'pin_123456',
+        ], 200),
+        '*' => Http::response('fake-image-content', 200),
+    ]);
+
+    $this->publisher->publish($this->postPlatform);
+
+    Http::assertSent(function ($request) {
+        return str_contains($request->url(), '/v5/pins')
+            && ! array_key_exists('alt_text', $request->data());
+    });
+});
+
 test('pinterest publisher can get boards', function () {
     Http::fake([
         '*/v5/boards*' => Http::response([