Rework service, removed redundant code, service invoicing improvements

app/Models/Usage/Broadband.php

@@ -3,25 +3,23 @@
 namespace App\Models\Usage;
 
 use Carbon\Carbon;
-use Illuminate\Database\Eloquent\Model;
 
 use App\Models\Service\Broadband as ServiceBroadband;
+use Illuminate\Support\Facades\Log;
 
-class Broadband extends Model
+class Broadband extends Type
 {
-	protected $casts = [
-		'date'=>'datetime:Y-m-d',
-	];
-
 	protected $table = 'usage_broadband';
-	public $timestamps = FALSE;
 
 	private $traffic_end = 14;
 
 	/* RELATIONS */
 
+	/* @todo rename to service() and put in parent */
+	/* @deprecated */
 	public function broadband()
 	{
+		Log::alert('deprecated function '.__METHOD__);
 		return $this->belongsTo(ServiceBroadband::class);
 	}
 

app/Models/Usage/Type.php

@@ -0,0 +1,14 @@
+<?php
+
+namespace App\Models\Usage;
+
+use Illuminate\Database\Eloquent\Model;
+
+abstract class Type extends Model
+{
+	protected $casts = [
+		'date'=>'datetime:Y-m-d',
+	];
+
+	public $timestamps = FALSE;
+}