Expand chart api

app/Rules/IsFilterValueIn.php

@@ -0,0 +1,58 @@
+<?php
+/*
+ * IsFilterValueIn.php
+ * Copyright (c) 2024 james@firefly-iii.org.
+ *
+ * This file is part of Firefly III (https://github.com/firefly-iii).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see https://www.gnu.org/licenses/.
+ */
+
+declare(strict_types=1);
+
+namespace FireflyIII\Rules;
+
+use Illuminate\Contracts\Validation\ValidationRule;
+
+class IsFilterValueIn implements ValidationRule
+{
+    private string $key;
+    private array $values;
+    public function __construct(string $key, array $values) {
+        $this->key = $key;
+        $this->values = $values;
+    }
+    /**
+     * @SuppressWarnings(PHPMD.UnusedFormalParameter)
+     */
+    public function validate(string $attribute, mixed $value, \Closure $fail): void
+    {
+        if(!is_array($value)) {
+            return;
+        }
+        if(!array_key_exists($this->key, $value)) {
+            return;
+        }
+        $value = $value[$this->key] ?? null;
+
+        if(!is_string($value) && !is_null($value)) {
+            $fail('validation.filter_not_string')->translate(['filter' => $this->key]);
+        }
+        if(!in_array($value, $this->values)) {
+            $fail('validation.filter_must_be_in')->translate(['filter' => $this->key,'values' => join(', ',$this->values)]);
+        }
+        //$fail('validation.filter_not_string')->translate(['filter' => $this->key]);
+    }
+
+}