feat(receivables): fresh receivables implementation

app/Domains/Receivables/Http/Resources/PaymentMethodResource.php

@@ -0,0 +1,43 @@
+<?php
+
+namespace App\Domains\Receivables\Http\Resources;
+
+use App\Domains\Accounts\Http\Resources\CompanyResource;
+use Illuminate\Http\Request;
+use Illuminate\Http\Resources\Json\JsonResource;
+
+/**
+ * A payment method as the admin API publishes it.
+ *
+ * Deliberately thin: the label, the company it belongs to, and the kind of
+ * method it is -- a manually created one or one registered by a gateway
+ * module. The module's own configuration (driver, settings, whether it is
+ * active or pointed at a test environment) stays on the server; nothing here
+ * exposes it.
+ *
+ * The owning company is published only when the relation resolves, which is
+ * asked of the database each time and so costs a query per serialised row.
+ */
+class PaymentMethodResource extends JsonResource
+{
+    /**
+     * Transform the resource into an array.
+     *
+     * @param  Request  $request
+     */
+    public function toArray($request): array
+    {
+        $method = $this->resource;
+
+        return [
+            'id' => $method->id,
+            'name' => $method->name,
+            'company_id' => $method->company_id,
+            'type' => $method->type,
+            'company' => $this->when(
+                $method->company()->exists(),
+                fn () => new CompanyResource($method->company)
+            ),
+        ];
+    }
+}