Work on product costing (broadband) and reporting

app/Models/Product/SSL.php

@@ -2,13 +2,34 @@
 
 namespace App\Models\Product;
 
+use Illuminate\Support\Collection;
+
+use App\Interfaces\ProductSupplier;
+use App\Models\Base\ProductType;
 use App\Traits\NextKey;
 
-class SSL extends \App\Models\Base\ProductType
+class SSL extends ProductType implements ProductSupplier
 {
 	use NextKey;
-
 	const RECORD_ID = 'ssl';
 
 	protected $table = 'ab_ssl';
+
+	public function allowance(): Collection
+	{
+		// N/A
+		return collect();
+	}
+
+	public function allowance_string(): string
+	{
+		// N/A
+		return '';
+	}
+
+	public function getCostAttribute(): float
+	{
+		// N/A
+		return 0;
+	}
 }