Implemented balances report.

resources/views/bookings/index.blade.php

@@ -5,6 +5,7 @@
 @section('subnav')
     <li class="nav-item ml-auto">
       <a href='/bookings/create' class="btn btn-outline-success">Neue Buchung</a>
+      <a href='/reports/balances/{{ $year }}' class="btn btn-outline-warning">HS-Rechnung</a>
     </li>
 @endsection
 

resources/views/reports/balances.blade.php

@@ -0,0 +1,36 @@
+@extends('layout.master')
+
+@section('title', 'HS-Rechnung für ' . $year)
+
+@section('subnav')
+    <a class='btn btn-outline-secondary' href='/bookings/year-{{ $year }}'>Zurück</a>
+@endsection
+
+@section('content')
+    <h2>@yield('title')</h2>
+    <table class='table table-striped table-bordered'>
+        <tr>
+            <th>Datum</th>
+            <th>Kontostand</th>
+            <th>Monatssaldo</th>
+            <th>Abgänge</th>
+            <th>Zugänge</th>
+        </tr>
+        <tr>
+            <td>{{ formatDate(firstDayOfYear($year)) }}</td>
+            <td>{!! formatAmount($startBalance) !!}</td>
+            <td></td>
+            <td></td>
+            <td></td>
+        </tr>
+        @foreach($balances as $balance)
+            <tr>
+                <td>{{ formatDate($balance->date) }}</td>
+                <td>{!! formatAmount($balance->accountBalance) !!}</td>
+                <td>{!! formatAmount($balance->monthBalance) !!}</td>
+                <td>{!! formatAmount($balance->expeditures) !!}</td>
+                <td>{!! formatAmount($balance->incomes) !!}</td>
+            </tr>
+        @endforeach
+    </table>
+@endsection