Expand API with budget limits

app/Api/V1/Requests/BudgetLimitRequest.php

@@ -0,0 +1,77 @@
+<?php
+/**
+ * BudgetLimitRequest.php
+ * Copyright (c) 2018 thegrumpydictator@gmail.com
+ *
+ * This file is part of Firefly III.
+ *
+ * Firefly III is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Firefly III 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Firefly III. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+declare(strict_types=1);
+
+namespace FireflyIII\Api\V1\Requests;
+
+
+/**
+ * Class BudgetLimitRequest
+ */
+class BudgetLimitRequest extends Request
+{
+    /**
+     * @return bool
+     */
+    public function authorize(): bool
+    {
+        // Only allow authenticated users
+        return auth()->check();
+    }
+
+    /**
+     * @return array
+     */
+    public function getAll(): array
+    {
+        return [
+            'budget_id'  => $this->integer('budget_id'),
+            'start_date' => $this->date('start_date'),
+            'end_date'   => $this->date('end_date'),
+            'amount'     => $this->string('amount'),
+        ];
+    }
+
+    /**
+     * @return array
+     */
+    public function rules(): array
+    {
+        $rules = [
+            'budget_id'  => 'required|exists:budgets,id|belongsToUser:budgets,id',
+            'start_date' => 'required|before:end_date|date',
+            'end_date'   => 'required|after:start_date|date',
+            'amount'     => 'required|more:0',
+        ];
+        switch ($this->method()) {
+            default:
+                break;
+            case 'PUT':
+            case 'PATCH':
+                $rules['budget_id'] = 'required|exists:budgets,id|belongsToUser:budgets,id';
+                break;
+        }
+
+        return $rules;
+    }
+
+}