add more controller

app/Services/Settings/ConfigurationService.php

@@ -0,0 +1,49 @@
+<?php
+
+namespace App\Services\Settings;
+
+use App\Models\Configuration;
+
+class ConfigurationService
+{
+    public function list(): array
+    {
+        return Configuration::query()
+            ->orderBy('id')
+            ->get()
+            ->toArray();
+    }
+
+    public function store(array $payload): Configuration
+    {
+        return Configuration::query()->create([
+            'config_key' => (string) $payload['config_key'],
+            'config_value' => (string) $payload['config_value'],
+        ]);
+    }
+
+    public function update(int $id, array $payload): ?Configuration
+    {
+        $config = Configuration::query()->find($id);
+        if (!$config) {
+            return null;
+        }
+
+        $config->update([
+            'config_key' => (string) $payload['config_key'],
+            'config_value' => (string) $payload['config_value'],
+        ]);
+
+        return $config;
+    }
+
+    public function delete(int $id): bool
+    {
+        $config = Configuration::query()->find($id);
+        if (!$config) {
+            return false;
+        }
+
+        return (bool) $config->delete();
+    }
+}