Implement support for RMA items

composer.json

@@ -3,7 +3,7 @@
     "license": "OSL-3.0",
     "description": "Magento 2 module for RobinHQ integration. Provides API endpoints for RobinHQ dynamic API",
     "require": {
-        "php": "^7.1.0",
+        "php": "^7.2",
         "emico/robinhq-lib": "^1.0.6",
         "magento/module-customer": "101.*|102.*|103.*",
         "magento/module-catalog": "102.*|103.*|104.*",

src/DataProvider/DetailView/ReturnsProvider.php

@@ -0,0 +1,111 @@
+<?php
+/**
+ * @author Bram Gerritsen <bgerritsen@emico.nl>
+ * @copyright (c) Emico B.V. 2017
+ */
+
+namespace Emico\RobinHq\DataProvider\DetailView;
+
+use Emico\RobinHqLib\Model\Order\DetailsView;
+use Magento\Framework\Api\SearchCriteriaBuilder;
+use Magento\Rma\Api\Data\ItemInterface;
+use Magento\Rma\Api\Data\RmaInterface;
+use Magento\Rma\Api\Data\TrackInterface;
+use Magento\Rma\Api\RmaRepositoryInterface;
+use Magento\Rma\Helper\Eav;
+use Magento\Rma\Model\Item;
+use Magento\Rma\Model\Rma;
+use Magento\Sales\Api\Data\OrderInterface;
+
+class ReturnsProvider implements DetailViewProviderInterface
+{
+    /** @var RmaRepositoryInterface */
+    private $rmaRepository;
+
+    /** @var SearchCriteriaBuilder */
+    private $searchCriteriaBuilder;
+
+    /** @var Eav */
+    private $rmaEav;
+
+    /** @var array */
+    private $attributeOptionValues;
+
+    /**
+     * ReturnsProvider constructor.
+     * @param RmaRepositoryInterface  $rmaRepository
+     * @param SearchCriteriaBuilder   $searchCriteriaBuilder
+     * @param Eav $rmaEav
+     */
+    public function __construct(
+        RmaRepositoryInterface $rmaRepository,
+        SearchCriteriaBuilder $searchCriteriaBuilder,
+        Eav $rmaEav
+    ) {
+        $this->rmaRepository = $rmaRepository;
+        $this->searchCriteriaBuilder = $searchCriteriaBuilder;
+        $this->rmaEav = $rmaEav;
+    }
+
+    /**
+     * @param OrderInterface $order
+     * @return array
+     * @throws \Exception
+     */
+    public function getItems(OrderInterface $order): array
+    {
+        $this->searchCriteriaBuilder->addFilter(Rma::ORDER_ID, $order->getEntityId());
+        $searchResults = $this->rmaRepository->getList($this->searchCriteriaBuilder->create());
+        if ($searchResults->getTotalCount() === 0) {
+            return [];
+        }
+
+        $returnItems = [];
+        foreach ($searchResults->getItems() as $rma) {
+            $trackNumbers = $this->getTrackingNumbers($rma);
+
+            /** @var Item $rmaItem */
+            foreach ($rma->getItems() as $rmaItem) {
+                $itemData = [
+                    __('return_reason')->render()  => $this->getReasonLabel($rmaItem),
+                    __('return_track_trace')->render() => implode(', ', $trackNumbers),
+                    __('artikelnr_(SKU)')->render() => $rmaItem->getData('product_sku'),
+                    __('article name')->render() => $rmaItem->getData('product_name'),
+                    __('quantity')->render() => $rmaItem->getQtyRequested()
+                ];
+
+                $returnItems[] = $itemData;
+            }
+        }
+        $detailView = new DetailsView(DetailsView::DISPLAY_MODE_ROWS, $returnItems);
+        $detailView->setCaption(__('Returns'));
+        return [$detailView];
+    }
+
+    /**
+     * @param RmaInterface $rma
+     * @return array
+     */
+    protected function getTrackingNumbers(RmaInterface $rma): array
+    {
+        return array_map(
+            static function (TrackInterface $track) {
+                return $track->getTrackNumber();
+            },
+            $rma->getTrackingNumbers()->getItems()
+        );
+    }
+
+    /**
+     * @param ItemInterface $rmaItem
+     * @return string
+     */
+    protected function getReasonLabel(ItemInterface $rmaItem): string
+    {
+        if ($this->attributeOptionValues === null) {
+            $this->attributeOptionValues = $this->rmaEav->getAttributeOptionStringValues();
+        }
+        $reason = $rmaItem->getReason();
+        return $this->attributeOptionValues[$reason] ?? $reason;
+    }
+}

src/etc/di.xml

@@ -66,6 +66,7 @@
                 <item name="products" xsi:type="object">Emico\RobinHq\DataProvider\DetailView\ProductDetailViewProvider</item>
                 <item name="totals" xsi:type="object">Emico\RobinHq\DataProvider\DetailView\TotalDetailViewProvider</item>
                 <item name="track_trace" xsi:type="object">Emico\RobinHq\DataProvider\DetailView\TrackTraceProvider</item>
+                <item name="returns" xsi:type="object">Emico\RobinHq\DataProvider\DetailView\ReturnsProvider</item>
             </argument>
         </arguments>
     </virtualType>