[config] Add concept of an exportable config

src/ArrayConfig.php

@@ -2,7 +2,7 @@
 
 namespace Stefna\Config;
 
-final class ArrayConfig implements Config
+final class ArrayConfig implements Config, ExportableConfig
 {
 	use GetConfigTrait;
 
@@ -37,4 +37,9 @@ public function getRawValue(string $key): mixed
 		}
 		return $root;
 	}
+
+	public function getArrayCopy(): array
+	{
+		return $this->config;
+	}
 }

src/ExportableConfig.php

@@ -0,0 +1,11 @@
+<?php declare(strict_types=1);
+
+namespace Stefna\Config;
+
+interface ExportableConfig
+{
+	/**
+	 * @return array<mixed>
+	 */
+	public function getArrayCopy(): array;
+}

src/FileConfig.php

@@ -4,7 +4,7 @@
 
 use Stefna\Config\Exception\FileNotFound;
 
-final class FileConfig implements Config
+final class FileConfig implements Config, ExportableConfig
 {
 	use GetConfigTrait;
 
@@ -15,16 +15,26 @@ public function __construct(
 	) {}
 
 	public function getRawValue(string $key): mixed
+	{
+		$this->loadFile();
+		return $this->loadedConfig->getRawValue($key);
+	}
+
+	public function getArrayCopy(): array
+	{
+		$this->loadFile();
+		return $this->loadedConfig->getArrayCopy();
+	}
+
+	private function loadFile(): void
 	{
 		if (isset($this->loadedConfig)) {
-			return $this->loadedConfig->getRawValue($key);
+			return;
 		}
 
 		if (!file_exists($this->configFile)) {
 			throw new FileNotFound('Configuration not found: ' . $this->configFile);
 		}
 		$this->loadedConfig = ArrayConfig::fromArray(require $this->configFile);
-
-		return $this->loadedConfig->getRawValue($key);
 	}
 }

tests/AbstractConfigTestCase.php

@@ -5,6 +5,7 @@
 use PHPUnit\Framework\TestCase;
 use Stefna\Config\ArrayConfig;
 use Stefna\Config\Config;
+use Stefna\Config\ExportableConfig;
 use Stefna\Config\Tests\Stub\TestStub;
 
 abstract class AbstractConfigTestCase extends TestCase
@@ -117,9 +118,22 @@ public function testDotKeyReturnEmptyOnExtraDots(): void
 		$this->assertNull($config->get('.nesting'));
 	}
 
-	protected function getDefaultArrayConfig(): ArrayConfig
+	public function testExportableConfig(): void
+	{
+		$config = $this->getConfig();
+		if (!$config instanceof ExportableConfig) {
+			$this->markTestSkipped('Config does not implement ExportableConfig');
+		}
+
+		$this->assertSame($this->getDefaultConfigAsArray(), $config->getArrayCopy());
+	}
+
+	/**
+	 * @return array<string, mixed>
+	 */
+	protected function getDefaultConfigAsArray(): array
 	{
-		return new ArrayConfig([
+		return [
 			'testString' => 'string',
 			'testNumberAsString' => '43',
 			'testNumber' => 42,
@@ -140,7 +154,13 @@ protected function getDefaultArrayConfig(): ArrayConfig
 					'value' => 2,
 				],
 			],
-		]);
+		];
+	}
+
+
+	protected function getDefaultArrayConfig(): ArrayConfig
+	{
+		return new ArrayConfig($this->getDefaultConfigAsArray());
 	}
 
 	abstract protected function getConfig(): Config;