Outsourced a chart to a specialised Google chart thing.

app/Generator/Chart/Account/AccountChartGenerator.php

@@ -0,0 +1,23 @@
+<?php
+
+namespace FireflyIII\Generator\Chart\Account;
+use Illuminate\Support\Collection;
+use Carbon\Carbon;
+
+/**
+ * Interface AccountChartGenerator
+ *
+ * @package FireflyIII\Generator\Chart\Account
+ */
+interface AccountChartGenerator
+{
+
+    /**
+     * @param Collection $accounts
+     * @param Carbon     $start
+     * @param Carbon     $end
+     *
+     * @return array
+     */
+    public function all(Collection $accounts, Carbon $start, Carbon $end);
+}