Wrap global config in a config class

- Inject this into the needed classes and get
away from globals.

classes/Configuration.php

+<?php declare(strict_types=1);
+
+namespace uib\ub\loadspeakr;
+
+final class Configuration
+{
+    private array $configs;
+
+    /**
+     * @throws \Exception
+     */
+    public function __construct(array $conf)
+    {
+        if (count($conf) === 0) {
+            throw new \Exception(
+              'Configuration empty. Giving up.'
+            );
+        }
+
+        $this->configs['conf'] = $conf;
+    }
+
+    public function getConfigValue(string $type, string $key)
+    {
+        if (!isset($this->configs[$type][$key])) {
+            return '';
+        }
+
+        return $this->configs[$type][$key];
+    }
+
+    public function debugMode(): bool
+    {
+        return $this->configs['conf']['debug'];
+    }
+
+}

index.php

@@ -13,8 +13,11 @@ const LOADSPEAKR_ROOT = __DIR__;
 require_once __DIR__ . '/vendor/autoload.php';
 require_once __DIR__ . '/common.inc.php';
 
+global $conf;
+$configuration = new uib\ub\loadspeakr\Configuration($conf);
+
 if (isset($_GET['q']) && $_GET['q'] === 'import') {
-    $imp = new Importer();
+    $imp = new Importer($configuration);
     $imp->run();
     exit(0);
 }

tests/ConfigurationTest.php

+<?php declare(strict_types=1);
+
+use PHPUnit\Framework\TestCase;
+use uib\ub\loadspeakr\Configuration;
+
+final class ConfigurationTest extends TestCase
+{
+    public Configuration $configuration;
+
+    public function setUp(): void
+    {
+        $conf = [
+            'foo' => 'bar',
+            'debug' => true,
+            'multiple' => ['one', 'two']
+        ];
+
+        $this->configuration = new Configuration($conf);
+    }
+
+
+    /**
+     * @covers \uib\ub\loadspeakr\Configuration::getConfigValue
+     */
+    public function testGetConfigValue(): void
+    {
+        self::assertSame('bar', $this->configuration->getConfigValue('conf', 'foo'));
+        self::assertCount(2, $this->configuration->getConfigValue('conf', 'multiple'),
+        'Unable to get settings storing multiple values.'
+        );
+    }
+
+    /**
+     * @covers \uib\ub\loadspeakr\Configuration::debugMode
+     */
+    public function testDebugMode(): void
+    {
+        self::assertTrue($this->configuration->debugMode());
+    }
+}