From a737879baf423c4f1c68807bd1d4ec60e1e6ee96 Mon Sep 17 00:00:00 2001
From: Tobias Petry <github@tpetry.me>
Date: Tue, 5 Jul 2022 20:19:46 +0200
Subject: [PATCH] Add previewify prefix (#24)

* add required previewify prefix

* Fix code style (php-cs-fixer)

* only add prefix when not already available

* Fix code style (php-cs-fixer)

Co-authored-by: PHP CS Fixer <phpcsfixer@example.com>
---
 README.md                     |  3 +++
 src/SEOManager.php            |  9 +++++++--
 tests/Pest/PreviewifyTest.php | 10 +++++-----
 3 files changed, 15 insertions(+), 7 deletions(-)

diff --git a/README.md b/README.md
index 0e73c09..cb57c5a 100644
--- a/README.md
+++ b/README.md
@@ -253,6 +253,9 @@ The `previewify()` method also returns a signed URL to the image, which lets you
 <img alt="@seo('title')" src="@seo('previewify', 'blog')">
 ```
 
+> **Note**
+> The `previewify:` prefix will be automatically prepended to all provided data keys.
+ 
 ## Examples
 
 ### Service Provider
diff --git a/src/SEOManager.php b/src/SEOManager.php
index fab91f6..77a8114 100644
--- a/src/SEOManager.php
+++ b/src/SEOManager.php
@@ -192,9 +192,14 @@ public function previewify(string $alias, int|string|array $data = null): string
 
         if ($data === null) {
             $data = [
-                'title' => $this->raw('title'),
-                'description' => $this->raw('description'),
+                'previewify:title' => $this->raw('title'),
+                'previewify:description' => $this->raw('description'),
             ];
+        } else {
+            $data = array_combine(
+                array_map(fn ($key) => str_starts_with($key, 'previewify:') ? $key : "previewify:{$key}", array_keys($data)),
+                $data,
+            );
         }
 
         $query = base64_encode(json_encode($data, JSON_THROW_ON_ERROR));
diff --git a/tests/Pest/PreviewifyTest.php b/tests/Pest/PreviewifyTest.php
index ebc4030..9ac59c8 100644
--- a/tests/Pest/PreviewifyTest.php
+++ b/tests/Pest/PreviewifyTest.php
@@ -18,16 +18,16 @@
 
 test('previewify templates can be given data', function () {
     seo()->previewify('blog', 1);
-    expect(seo()->previewify('blog', ['title' => 'abc', 'excerpt' => 'def']))
+    expect(seo()->previewify('blog', ['title' => 'abc', 'previewify:excerpt' => 'def']))
         ->toContain('previewify.app/generate/templates/1')
-        ->toContain(base64_encode(json_encode(['title' => 'abc', 'excerpt' => 'def'])));
+        ->toContain(base64_encode(json_encode(['previewify:title' => 'abc', 'previewify:excerpt' => 'def'])));
 });
 
 test('the previewify method returns a link to a signed url', function () {
     seo()->previewify('blog', 1);
 
     expect(seo()->previewify('blog', ['title' => 'abc']))
-        ->toContain('?signature=' . hash_hmac('sha256', base64_encode(json_encode(['title' => 'abc'])), config('services.previewify.key')));
+        ->toContain('?signature=' . hash_hmac('sha256', base64_encode(json_encode(['previewify:title' => 'abc'])), config('services.previewify.key')));
 });
 
 test("previewify templates use default data when they're not passed any data explicitly", function () {
@@ -37,7 +37,7 @@
 
     expect(seo()->previewify('blog'))
         ->toContain('previewify.app/generate/templates/1')
-        ->toContain(base64_encode(json_encode(['title' => 'foo', 'description' => 'bar'])));
+        ->toContain(base64_encode(json_encode(['previewify:title' => 'foo', 'previewify:description' => 'bar'])));
 });
 
 test('previewify images are used as the cover images', function () {
@@ -66,7 +66,7 @@
 
     expect(seo()->previewify('blog'))
         ->toContain('previewify.app/generate/templates/1')
-        ->toContain(base64_encode(json_encode(['title' => 'foo', 'description' => 'bar'])));
+        ->toContain(base64_encode(json_encode(['previewify:title' => 'foo', 'previewify:description' => 'bar'])));
 });
 
 test('the @seo helper can be used for setting a previewify image', function () {