Add some experimental account endpoints using a package

app/Support/JsonApi/ExpandsQuery.php

@@ -0,0 +1,68 @@
+<?php
+/*
+ * ExpandsQuery.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\Support\JsonApi;
+
+use Illuminate\Contracts\Database\Eloquent\Builder;
+use LaravelJsonApi\Core\Query\FilterParameters;
+use LaravelJsonApi\Core\Query\SortFields;
+
+trait ExpandsQuery
+{
+    final protected function addPagination(Builder $query, array $pagination): Builder
+    {
+        $skip = ($pagination['number'] - 1) * $pagination['size'];
+        return $query->skip($skip)->take($pagination['size']);
+    }
+
+    final protected function addSortParams(Builder $query, SortFields $sort): Builder
+    {
+        foreach ($sort->all() as $sortField) {
+            $query->orderBy($sortField->name(), $sortField->isAscending() ? 'ASC' : 'DESC');
+        }
+        return $query;
+    }
+
+    final protected function addFilterParams(string $class, Builder $query, ?FilterParameters $filters): Builder
+    {
+        if (null === $filters) {
+            return $query;
+        }
+        $config = config(sprintf('firefly.valid_query_filters.%s', $class)) ?? [];
+        if (count($filters->all()) === 0) {
+            return $query;
+        }
+        $query->where(function (Builder $q) use ($config, $filters) {
+            foreach ($filters->all() as $filter) {
+                if (in_array($filter->key(), $config, true)) {
+                    foreach($filter->value() as $value) {
+                        $q->where($filter->key(), 'LIKE', sprintf('%%%s%%', $value));
+                    }
+                }
+            }
+        });
+
+        return $query;
+    }
+
+}