Add method render() in CssClass::class.

CHANGELOG.md

@@ -1,6 +1,8 @@
 # Change Log
 
-## 0.1.2 Under development
+## 0.1.2 March 25, 2024
+
+- Bug #6: Add method `render()` in `CssClass::class` (@terabytesoftw)
 
 ## 0.1.1 March 9, 2024
 

README.md

@@ -311,6 +311,30 @@ $attributes = Attributes::render(
 );
 ```
 
+### Render HMTL class attribute
+
+The `CssClass::class` helper can be used to render the `class` attribute.
+
+The method accepts one parameter:
+
+- `class:` (string): The class to render.
+- `baseClass:` (string): The base class to use.
+- `inList:` (array): The list of classes to validate.
+
+```php
+<?php
+
+declare(strict_types=1);
+
+use UIAwesome\Html\Helper\CssClass;
+
+$class = CssClass::render(
+    'yellow',
+    'p-4 mb-4 text-sm text-%1$s-800 rounded-lg bg-%1$s-50 dark:bg-gray-800 dark:text-%1$s-400',
+    ['blue', 'gray', 'green', 'red', 'yellow'],
+);
+```
+
 ### Render Template
 
 The `Template::class` helper can be used to render a template.

src/CssClass.php

@@ -9,6 +9,7 @@
 use function is_array;
 use function is_int;
 use function preg_split;
+use function sprintf;
 
 /**
  * This class provides static methods for managing CSS classes.
@@ -72,6 +73,32 @@ public static function add(array &$attributes, array|string $classes, bool $over
         $attributes['class'] = implode(' ', $classArray);
     }
 
+    /**
+     * This method, dynamically generates CSS classes based on the provided class parameter and a template string.
+     *
+     * The template string should contain a placeholder for the class value.
+     *
+     * @param string $class The class value.
+     * @param string $baseClass The template string. The placeholder for the class value should be represented by "%s".
+     * @param string[] $inList The list of classes to validate.
+     *
+     * @return string The generated CSS class.
+     */
+    public static function render(string $class, string $baseClass, array $inList): string
+    {
+        if (in_array($class, $inList, true) === false) {
+            throw new \InvalidArgumentException(
+                sprintf(
+                    'Invalid value: "%s". Available values: "%s".',
+                    $class,
+                    implode('", "', $inList)
+                )
+            );
+        }
+
+        return sprintf($baseClass, $class);
+    }
+
     /**
      * Merges already existing CSS classes with new one.
      *

tests/CssClassTest.php

@@ -105,4 +105,30 @@ public function testMergeMethodAssignToKey()
         $this->assertArrayHasKey('keyed-class', $merged);
         $this->assertEquals('new-class', $merged['keyed-class']);
     }
+
+    public function testRender(): void
+    {
+        $this->assertSame(
+            'p-4 mb-4 text-sm text-yellow-800 rounded-lg bg-yellow-50 dark:bg-gray-800 dark:text-yellow-400',
+            CssClass::render(
+                'yellow',
+                'p-4 mb-4 text-sm text-%1$s-800 rounded-lg bg-%1$s-50 dark:bg-gray-800 dark:text-%1$s-400',
+                ['blue', 'gray', 'green', 'red', 'yellow'],
+            )
+        );
+    }
+
+    public function testRenderWithInvalidValue(): void
+    {
+        $this->expectException(\InvalidArgumentException::class);
+        $this->expectExceptionMessage(
+            'Invalid value: "indigo". Available values: "blue", "gray", "green", "red", "yellow".'
+        );
+
+        CssClass::render(
+            'indigo',
+            'p-4 mb-4 text-sm text-%1$s-800 rounded-lg bg-%1$s-50 dark:bg-gray-800 dark:text-%1$s-400',
+            ['blue', 'gray', 'green', 'red', 'yellow'],
+        );
+    }
 }