From 94c8a49ed1c6c90aef37d60da86235d65dbe262d Mon Sep 17 00:00:00 2001
From: sebprt <sebastien@kiboko.fr>
Date: Fri, 8 Nov 2024 14:28:56 +0100
Subject: [PATCH 1/6] Added a new expression to slugify a string

---
 src/Slugify.php                          | 55 ++++++++++++++++++++++++
 src/StringExpressionLanguageProvider.php |  1 +
 2 files changed, 56 insertions(+)
 create mode 100644 src/Slugify.php

diff --git a/src/Slugify.php b/src/Slugify.php
new file mode 100644
index 0000000..d1653c8
--- /dev/null
+++ b/src/Slugify.php
@@ -0,0 +1,55 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Kiboko\Component\StringExpressionLanguage;
+
+use Symfony\Component\ExpressionLanguage\ExpressionFunction;
+
+final class Slugify extends ExpressionFunction
+{
+    public function __construct($name)
+    {
+        parent::__construct(
+            $name,
+            $this->compile(...)->bindTo($this),
+            $this->evaluate(...)->bindTo($this)
+        );
+    }
+
+    private function compile(string $value, string $divider = '-'): string
+    {
+        return <<<PHP
+            (function () use (\$input) : string {
+                \$text = preg_replace('~[^\\pL\\d]+~u', {$divider}, {$value});
+                \$text = iconv('utf-8', 'us-ascii//TRANSLIT', \$text);
+                \$text = preg_replace('~[^-\\w]+~', '', \$text);
+                \$text = trim(\$text, {$divider});
+                \$text = preg_replace('~-+~', {$divider}, \$text);
+                \$text = strtolower(\$text);
+
+                if (strlen(\$text) <= 0) {
+                    return '';
+                }
+
+                return \$text;
+            })()
+            PHP;
+    }
+
+    private function evaluate(array $context, string $value, string $divider = '-'): string
+    {
+        $text = preg_replace('~[^\pL\d]+~u', $divider, $value);
+        $text = iconv('utf-8', 'us-ascii//TRANSLIT', $text);
+        $text = preg_replace('~[^-\w]+~', '', $text);
+        $text = trim($text, $divider);
+        $text = preg_replace('~-+~', $divider, $text);
+        $text = strtolower($text);
+
+        if (\strlen($text) <= 0) {
+            return 'n-a';
+        }
+
+        return $text;
+    }
+}
diff --git a/src/StringExpressionLanguageProvider.php b/src/StringExpressionLanguageProvider.php
index b0c768b..b298a4e 100644
--- a/src/StringExpressionLanguageProvider.php
+++ b/src/StringExpressionLanguageProvider.php
@@ -37,6 +37,7 @@ public function getFunctions(): array
             new AsFloat('asFloat'),
             new AsInteger('asInteger'),
             new AsString('asString'),
+            new Slugify('slugify'),
         ];
     }
 }

From c28c48946f37853d14d4eeea1fc25b91d48edbaf Mon Sep 17 00:00:00 2001
From: sebprt <sebastien@kiboko.fr>
Date: Fri, 8 Nov 2024 14:29:29 +0100
Subject: [PATCH 2/6] Ran php-cs-fixer

---
 src/AsString.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/AsString.php b/src/AsString.php
index 16d1890..9c20b6a 100644
--- a/src/AsString.php
+++ b/src/AsString.php
@@ -24,7 +24,7 @@ private function compile(string $value): string
             PHP;
     }
 
-    private function evaluate(array $context, int|float|string $value): string
+    private function evaluate(array $context, float|int|string $value): string
     {
         return (string) $value;
     }

From cf8e2fbf03f94a3f2f42c39dd28ee81fe3122378 Mon Sep 17 00:00:00 2001
From: GitHub Action <actions@github.com>
Date: Fri, 8 Nov 2024 13:30:04 +0000
Subject: [PATCH 3/6] [rector] Rector fixes

---
 src/Slugify.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Slugify.php b/src/Slugify.php
index d1653c8..21155e8 100644
--- a/src/Slugify.php
+++ b/src/Slugify.php
@@ -41,7 +41,7 @@ private function evaluate(array $context, string $value, string $divider = '-'):
     {
         $text = preg_replace('~[^\pL\d]+~u', $divider, $value);
         $text = iconv('utf-8', 'us-ascii//TRANSLIT', $text);
-        $text = preg_replace('~[^-\w]+~', '', $text);
+        $text = preg_replace('~[^\-\w]+~', '', $text);
         $text = trim($text, $divider);
         $text = preg_replace('~-+~', $divider, $text);
         $text = strtolower($text);

From 26ff33a8b01ba8af1c02b3c1ddcd5936eb12f2a8 Mon Sep 17 00:00:00 2001
From: sebprt <sebastien@kiboko.fr>
Date: Fri, 8 Nov 2024 15:32:25 +0100
Subject: [PATCH 4/6] Create a new expression to get file extension

---
 src/FileExtension.php                    | 37 ++++++++++++++++++++++++
 src/StringExpressionLanguageProvider.php |  1 +
 2 files changed, 38 insertions(+)
 create mode 100644 src/FileExtension.php

diff --git a/src/FileExtension.php b/src/FileExtension.php
new file mode 100644
index 0000000..c10187e
--- /dev/null
+++ b/src/FileExtension.php
@@ -0,0 +1,37 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Kiboko\Component\StringExpressionLanguage;
+
+use Symfony\Component\ExpressionLanguage\ExpressionFunction;
+
+final class FileExtension extends ExpressionFunction
+{
+    public function __construct($name)
+    {
+        parent::__construct(
+            $name,
+            $this->compile(...)->bindTo($this),
+            $this->evaluate(...)->bindTo($this)
+        );
+    }
+
+    private function compile(string $value): string
+    {
+        return <<<PHP
+            (function () use (\$input) : string {
+                \$parts = explode('.', basename($value));
+
+                return end(\$parts);
+            })()
+            PHP;
+    }
+
+    private function evaluate(array $context, string $imageUrl): string
+    {
+        $parts = explode('.', basename($imageUrl));
+
+        return end($parts);
+    }
+}
diff --git a/src/StringExpressionLanguageProvider.php b/src/StringExpressionLanguageProvider.php
index b298a4e..6d6c390 100644
--- a/src/StringExpressionLanguageProvider.php
+++ b/src/StringExpressionLanguageProvider.php
@@ -38,6 +38,7 @@ public function getFunctions(): array
             new AsInteger('asInteger'),
             new AsString('asString'),
             new Slugify('slugify'),
+            new FileExtension('fileExtension'),
         ];
     }
 }

From c5a830badbe2101ce2d7c527ba384960a8cb8134 Mon Sep 17 00:00:00 2001
From: sebprt <sebastien@kiboko.fr>
Date: Fri, 8 Nov 2024 15:38:45 +0100
Subject: [PATCH 5/6] Ran php-cs-fixer

---
 src/DateTime.php      |  2 +-
 src/FileExtension.php | 10 +++-------
 src/Now.php           |  4 ++--
 3 files changed, 6 insertions(+), 10 deletions(-)

diff --git a/src/DateTime.php b/src/DateTime.php
index bf0f94a..c35d449 100644
--- a/src/DateTime.php
+++ b/src/DateTime.php
@@ -24,7 +24,7 @@ private function compile(string $date, string $format, string $timezone = 'null'
             PHP;
     }
 
-    private function evaluate(array $context, string $date, string $format, string $timezone = null)
+    private function evaluate(array $context, string $date, string $format, ?string $timezone = null)
     {
         return \DateTimeImmutable::createFromFormat($format, $date, null !== $timezone ? new \DateTimeZone($timezone) : null);
     }
diff --git a/src/FileExtension.php b/src/FileExtension.php
index c10187e..188fa7a 100644
--- a/src/FileExtension.php
+++ b/src/FileExtension.php
@@ -21,17 +21,13 @@ private function compile(string $value): string
     {
         return <<<PHP
             (function () use (\$input) : string {
-                \$parts = explode('.', basename($value));
-
-                return end(\$parts);
+                 return \\pathinfo($value, \FILEINFO_EXTENSION)
             })()
             PHP;
     }
 
-    private function evaluate(array $context, string $imageUrl): string
+    private function evaluate(array $context, string $file): string
     {
-        $parts = explode('.', basename($imageUrl));
-
-        return end($parts);
+        return pathinfo($file, \FILEINFO_EXTENSION);
     }
 }
diff --git a/src/Now.php b/src/Now.php
index a4d4b15..02951f3 100644
--- a/src/Now.php
+++ b/src/Now.php
@@ -17,14 +17,14 @@ public function __construct($name)
         );
     }
 
-    private function compile(string $timezone = null): string
+    private function compile(?string $timezone = null): string
     {
         return <<<PHP
                 (new \\DateTime('now', {$timezone} !== null ? new \\DateTimeZone({$timezone}) : null))
             PHP;
     }
 
-    private function evaluate(array $context, string $timezone = null)
+    private function evaluate(array $context, ?string $timezone = null)
     {
         return new \DateTime('now', null !== $timezone ? new \DateTimeZone($timezone) : null);
     }

From 0d62637a07193d34a002f5427feb29897cbf96da Mon Sep 17 00:00:00 2001
From: sebprt <sebastien@kiboko.fr>
Date: Fri, 8 Nov 2024 15:55:44 +0100
Subject: [PATCH 6/6] Improve the fileExtension expression

---
 src/FileExtension.php | 23 +++++++++++++++++++----
 1 file changed, 19 insertions(+), 4 deletions(-)

diff --git a/src/FileExtension.php b/src/FileExtension.php
index 188fa7a..bc89121 100644
--- a/src/FileExtension.php
+++ b/src/FileExtension.php
@@ -20,14 +20,29 @@ public function __construct($name)
     private function compile(string $value): string
     {
         return <<<PHP
-            (function () use (\$input) : string {
-                 return \\pathinfo($value, \FILEINFO_EXTENSION)
+            (function () use (\$input) : ?string {
+                \$validExtensions = ['jpg', 'jpeg', 'png', 'gif', 'bmp', 'svg', 'pdf', 'mp4', 'webm', 'mp3'];
+                
+                \$extension = \\pathinfo({$value})['extension'] ?? null;
+                if (!\\in_array(\$extension, \$validExtensions, true)) {
+                    return null;
+                }
+                
+                return \$extension;
             })()
             PHP;
     }
 
-    private function evaluate(array $context, string $file): string
+    private function evaluate(array $context, string $file): ?string
     {
-        return pathinfo($file, \FILEINFO_EXTENSION);
+        $validExtensions = ['jpg', 'jpeg', 'png', 'gif', 'bmp', 'svg'];
+
+        $extension = pathinfo($file)['extension'] ?? null;
+
+        if (!\in_array($extension, $validExtensions, true)) {
+            return null;
+        }
+
+        return $extension;
     }
 }