Implement a better management interface for Settings (#809)

app/Repositories/Eloquent/SettingsRepository.php

@@ -0,0 +1,96 @@
+<?php
+
+namespace Pterodactyl\Repositories\Eloquent;
+
+use Pterodactyl\Models\Setting;
+use Pterodactyl\Contracts\Repository\SettingsRepositoryInterface;
+
+class SettingsRepository extends EloquentRepository implements SettingsRepositoryInterface
+{
+    /**
+     * @var array
+     */
+    private $cache = [];
+
+    /**
+     * @var array
+     */
+    private $databaseMiss = [];
+
+    /**
+     * Return an instance of the model that acts as the base for
+     * this repository.
+     *
+     * @return string
+     */
+    public function model()
+    {
+        return Setting::class;
+    }
+
+    /**
+     * Store a new persistent setting in the database.
+     *
+     * @param string $key
+     * @param string $value
+     */
+    public function set(string $key, string $value)
+    {
+        // Clear item from the cache.
+        $this->clearCache($key);
+        $this->withoutFresh()->updateOrCreate(['key' => $key], ['value' => $value]);
+    }
+
+    /**
+     * Retrieve a persistent setting from the database.
+     *
+     * @param string $key
+     * @param mixed  $default
+     * @return mixed
+     */
+    public function get(string $key, $default = null)
+    {
+        // If item has already been requested return it from the cache. If
+        // we already know it is missing, immediately return the default
+        // value.
+        if (array_key_exists($key, $this->cache)) {
+            return $this->cache[$key];
+        } elseif (array_key_exists($key, $this->databaseMiss)) {
+            return $default;
+        }
+
+        $instance = $this->getBuilder()->where('key', $key)->first();
+
+        if (is_null($instance)) {
+            $this->databaseMiss[$key] = true;
+
+            return $default;
+        }
+
+        $this->cache[$key] = $instance->value;
+
+        return $this->cache[$key];
+    }
+
+    /**
+     * Remove a key from the database cache.
+     *
+     * @param string $key
+     * @return mixed
+     */
+    public function forget(string $key)
+    {
+        $this->clearCache($key);
+        $this->deleteWhere(['key' => $key]);
+    }
+
+    /**
+     * Remove a key from the cache.
+     *
+     * @param string $key
+     */
+    protected function clearCache(string $key)
+    {
+        unset($this->cache[$key], $this->databaseMiss[$key]);
+    }
+}