big restructure

lib/Repository/Settings/SettingRepository.php

@@ -0,0 +1,35 @@
+<?php
+
+namespace MintyPHP\Repository\Settings;
+
+use MintyPHP\DB;
+
+class SettingRepository
+{
+    public static function find(string $key): ?array
+    {
+        $row = DB::selectOne('select `key`, `value`, `description`, `updated_at` from settings where `key` = ? limit 1', $key);
+        if (!$row) {
+            return null;
+        }
+        return $row['settings'] ?? $row;
+    }
+
+    public static function getValue(string $key): ?string
+    {
+        $row = self::find($key);
+        if (!$row) {
+            return null;
+        }
+        return array_key_exists('value', $row) ? (string) $row['value'] : null;
+    }
+
+    public static function set(string $key, ?string $value, ?string $description = null): bool
+    {
+        $query = 'insert into settings (`key`, `value`, `description`) values (?, ?, ?) '
+            . 'on duplicate key update `value` = values(`value`), '
+            . '`description` = ifnull(values(`description`), `description`)';
+        $result = DB::update($query, $key, $value, $description);
+        return $result !== false;
+    }
+}