Ship orders: shipments with delivery notes

$order->shipments()->create([...]) records a delivery of a paid order's goods on Anikeen ID,
which adds its delivery note to the user's order documents and sends order.shipped.
$shipment->deliveryNote() downloads the PDF.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

README.md

@@ -180,6 +180,42 @@ instead of trusting the query string. Subscriptions work the same way
 (`$user->subscriptions()->create([...])->confirmationUrl(...)`, `&subscription=…`).
 Unconfirmed bookings are cancelled after 24 hours.
 
+Physical goods need a shipping address (`first_name`, `last_name`, `address`, `postal_code`,
+`city`, `country_iso`). The user can change both addresses on the confirmation page, so read the
+shipping address from the order (or the `order.completed` webhook) before you ship. An item's
+`image_url` is copied to Anikeen ID and stays visible on the order and invoice:
+
+```php
+$order = $user->orders()->create([
+    'billing_address_id' => $addressId,
+    'shipping_address' => ['first_name' => 'Ada', 'last_name' => 'Lovelace', 'address' => 'Main St', 'house_number' => '1', 'postal_code' => '10115', 'city' => 'Berlin', 'country_iso' => 'DE'],
+    'items' => [
+        ['type' => 'physical', 'name' => 'T-shirt', 'unit' => 'piece', 'units' => 1, 'gross_price' => '24.90', 'image_url' => 'https://shop.test/img/shirt.png'],
+        ['type' => 'physical-reduced', 'name' => 'Artbook', 'unit' => 'piece', 'units' => 1, 'gross_price' => '19.95'],
+    ],
+]);
+```
+
+Once a paid order is sent, create a shipment. Anikeen ID adds its delivery note to the user's
+order documents (with the tracking link) and sends `order.shipped` to your webhook endpoints.
+Without `items`, everything physical that is left is shipped; partial deliveries name the items:
+
+```php
+$order = $user->orders()->find($orderId);
+
+$shipment = $order->shipments()->create([
+    'carrier' => 'DHL',
+    'tracking_number' => '00340434161234567890',
+    'tracking_url' => 'https://www.dhl.de/…?piececode=00340434161234567890',
+    // 'items' => [['order_item_id' => $itemId, 'units' => 1]],
+]);
+
+$shipment->number;          // LS-2026-0001
+$shipment->deliveryNote();  // the delivery note as PDF
+```
+
+Only the app that created the order (or a trusted app) can ship it, and only once it is paid.
+
 `checkout()` on such a draft throws `ConfirmationRequiredException`; its `confirmationUrl`
 points to the same page. Trusted apps keep checking out directly.
 

src/Id/Billable.php

@@ -29,6 +29,21 @@ trait Billable
     use ManagesTransactions;
     use ManagesUserSshKeys;
 
+    /*
+     * API results cached per instance. Declared, so Eloquent models don't take them for
+     * attributes (an undeclared property goes through Model::__set and save() then fails
+     * with "no such column").
+     */
+    protected mixed $addressesCache = null;
+    protected mixed $countriesCache = null;
+    protected mixed $defaultPaymentMethodCache = null;
+    protected mixed $invoicesCache = null;
+    protected mixed $ordersCache = null;
+    protected mixed $paymentMethodsCache = null;
+    protected mixed $subscriptionsCache = null;
+    protected mixed $transactionsCache = null;
+    protected mixed $userDataCache = null;
+
     /**
      * Get the currently authenticated user.
      *

src/Id/Concerns/ManagesUserBilling.php

@@ -31,7 +31,7 @@ trait ManagesUserBilling
      *     billing_address?: array,
      *     shipping_address_id?: string,
      *     shipping_address?: array,
-     *     items: array<array{type: string, name: string, description?: string, price?: float|string, gross_price?: float|string, unit: string, units: int}>,
+     *     items: array<array{type: string, name: string, description?: string, image_url?: string, price?: float|string, gross_price?: float|string, unit: string, units: int}>,
      *     checkout?: bool,
      *     transaction_id?: string,
      *     transaction?: array,

src/Id/Resources/AppSubscription.php

@@ -47,7 +47,9 @@ class AppSubscription implements JsonSerializable
     }
 
     /**
-     * Change a subscription that wasn't checked out yet.
+     * Change a subscription (send only what changes). Before checkout everything can change;
+     * afterwards only the description, which names what the customer pays for and is shown
+     * on their bills, e.g. `$subscription->update(['description' => 'web-01.example.com'])`.
      *
      * @throws ApiException
      */

src/Id/Resources/Order.php

@@ -42,13 +42,13 @@ class Order extends BaseResource
      *      },
      *      shipping_address: null|array{
      *           company_name: null|string,
-     *           first_name:  string,
+     *           first_name: string,
      *           last_name: string,
-     *           address: null|string,
-     *           address_2: string,
+     *           address: string,
+     *           address_2: null|string,
      *           house_number: null|string,
      *           city: string,
-     *           state: string,
+     *           state: null|string,
      *           postal_code: string,
      *           country_iso: string,
      *           phone_number: null|string,
@@ -56,7 +56,7 @@ class Order extends BaseResource
      *      }
      *  } $attributes The order data:
      *    - billing_address:  Billing address (ISO 3166-1 alpha-2 country code)
-     *    - shipping_address: Shipping address (first name, last name, ISO 3166-1 alpha-2 country code)
+     *    - shipping_address: Shipping address for physical items (first name, last name, address, postal code, city, ISO 3166-1 alpha-2 country code)
      * @throws Throwable
      */
     public function update(array $attributes = []): self
@@ -101,6 +101,19 @@ class Order extends BaseResource
             ->request('DELETE', sprintf('v1/orders/%s', $this->id))->success();
     }
 
+    /**
+     * Deliveries of this order's goods; `create()` ships them (see Shipments::create()).
+     *
+     * @throws Throwable
+     */
+    public function shipments(): Shipments
+    {
+        return Shipments::builder(fn() => $this->billable->anikeenId()
+            ->request('GET', sprintf('v1/orders/%s/shipments', $this->id)))
+            ->setBillable($this->billable)
+            ->setParent($this);
+    }
+
     /**
      * Get order items from given order.
      *

src/Id/Resources/Orders.php

@@ -36,30 +36,37 @@ class Orders extends BaseCollection
      *     },
      *     shipping_address: null|array{
      *          company_name: null|string,
-     *          first_name:  string,
+     *          first_name: string,
      *          last_name: string,
-     *          address: null|string,
-     *          address_2: string,
+     *          address: string,
+     *          address_2: null|string,
      *          house_number: null|string,
      *          city: string,
-     *          state: string,
+     *          state: null|string,
      *          postal_code: string,
      *          country_iso: string,
      *          phone_number: null|string,
      *          email: null|string
      *     },
      *     items: array<array{
-     *         type:        string,
-     *         name:        string,
-     *         description: string,
-     *         price:       float|int,
-     *         unit:        string,
-     *         units:       int
+     *         type:         string,
+     *         name:         string,
+     *         description?: null|string,
+     *         image_url?:   null|string,
+     *         price?:       float|int|string,
+     *         gross_price?: float|int|string,
+     *         unit:         string,
+     *         units:        int
      *     }>
      * } $attributes The order data:
      *   - billing_address:  Billing address (ISO 3166-1 alpha-2 country code)
-     *   - shipping_address: Shipping address (first name, last name, ISO 3166-1 alpha-2 country code)
-     *   - items:            Array of order items (each with type, name, price, unit, units, and quantity)
+     *   - shipping_address: Shipping address for physical items (first name, last name, address, postal code, city, ISO 3166-1 alpha-2 country code)
+     *   - items:            Array of order items:
+     *       - type:        digital, physical or physical-reduced (VAT category)
+     *       - price/gross_price: net or gross unit price, one of both
+     *       - unit:        hour, day, week, month, year, onetime or piece
+     *       - image_url:   http(s) URL of a product image; Anikeen ID copies it, so it stays
+     *                      visible on the order and invoice when the shop removes it later
      * @throws Throwable
      */
     public function create(array $attributes = []): Order

src/Id/Resources/Shipment.php

@@ -0,0 +1,38 @@
+<?php
+
+namespace Anikeen\Id\Resources;
+
+use Anikeen\Id\Concerns\HasBillable;
+use Anikeen\Id\Concerns\HasParent;
+use Throwable;
+
+/**
+ * @property string $id
+ * @property string $number delivery note number, e.g. LS-2026-0001
+ * @property string $order_id
+ * @property null|string $carrier
+ * @property null|string $tracking_number
+ * @property null|string $tracking_url
+ * @property array $items order_item_id, name, description, units
+ * @property object $shipping_address
+ * @property null|string $note
+ * @property string $shipped_at
+ */
+class Shipment extends BaseResource
+{
+    use HasBillable;
+    use HasParent;
+
+    /**
+     * The delivery note as PDF (binary string).
+     *
+     * @throws Throwable
+     */
+    public function deliveryNote(): string
+    {
+        $result = $this->billable->anikeenId()
+            ->request('GET', sprintf('v1/orders/%s/shipments/%s/delivery-note', $this->order_id, $this->id));
+
+        return (string) $result->response?->getBody();
+    }
+}

src/Id/Resources/Shipments.php

@@ -0,0 +1,60 @@
+<?php
+
+namespace Anikeen\Id\Resources;
+
+use Anikeen\Id\Concerns\HasBillable;
+use Anikeen\Id\Concerns\HasParent;
+use Throwable;
+
+/**
+ * Deliveries of an order's physical goods. Each one adds a delivery note to the customer's
+ * order documents on Anikeen ID.
+ */
+class Shipments extends BaseCollection
+{
+    use HasBillable;
+    use HasParent;
+
+    /**
+     * Ship goods of a paid order. Only the app that created the order (or a trusted app) can.
+     *
+     * Without `items`, everything physical that hasn't been shipped yet is shipped. Items and
+     * the shipping address are stored as they are now; the user sees them on the delivery note.
+     *
+     * @param array{
+     *     carrier?: string,
+     *     tracking_number?: string,
+     *     tracking_url?: string,
+     *     note?: string,
+     *     shipped_at?: string,
+     *     items?: array<array{order_item_id: string, units?: float|int|string}>
+     * } $attributes
+     *   - carrier:         e.g. "DHL"
+     *   - tracking_url:    http(s) link to track the parcel, shown to the user
+     *   - shipped_at:      when it was sent (default: now, not in the future)
+     *   - items:           physical items of the order and how many of them (default: all left)
+     *
+     * Errors (ResourceException with the HTTP status): 409 when the order isn't paid or nothing
+     * is left to ship, 422 for items that aren't physical items of the order or exceed what's left.
+     *
+     * @throws Throwable
+     */
+    public function create(array $attributes = []): Shipment
+    {
+        return (new Shipment(fn() => $this->billable->anikeenId()
+            ->request('POST', sprintf('v1/orders/%s/shipments', $this->parent->id), $attributes)))
+            ->setBillable($this->billable)
+            ->setParent($this->parent);
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function find(string $id): ?Shipment
+    {
+        return (new Shipment(fn() => $this->billable->anikeenId()
+            ->request('GET', sprintf('v1/orders/%s/shipments/%s', $this->parent->id, $id))))
+            ->setBillable($this->billable)
+            ->setParent($this->parent);
+    }
+}

tests/Id/BillableModelTest.php

@@ -0,0 +1,31 @@
+<?php
+
+namespace Anikeen\Id\Tests;
+
+use Anikeen\Id\Billable;
+use Illuminate\Database\Eloquent\Model;
+
+class BillableModelTest extends TestCase
+{
+    public function test_cached_api_results_are_not_model_attributes(): void
+    {
+        $user = new class extends Model {
+            use Billable;
+
+            protected $guarded = [];
+
+            public function cacheAll(): void
+            {
+                foreach (['addresses', 'countries', 'defaultPaymentMethod', 'invoices', 'orders', 'paymentMethods', 'subscriptions', 'transactions', 'userData'] as $name) {
+                    $this->{$name.'Cache'} = 'cached';
+                }
+            }
+        };
+        $user->email = 'ada@example.com';
+
+        $user->cacheAll();
+
+        // save() would otherwise write them as columns ("no such column: ordersCache")
+        $this->assertSame(['email' => 'ada@example.com'], $user->getAttributes());
+    }
+}

tests/Id/ShipmentsTest.php

@@ -0,0 +1,88 @@
+<?php
+
+namespace Anikeen\Id\Tests;
+
+use Anikeen\Id\Billable;
+use Anikeen\Id\Exceptions\ResourceException;
+use GuzzleHttp\Psr7\Response;
+use Illuminate\Database\Eloquent\Model;
+
+class ShipmentsTest extends TestCase
+{
+    private function owner(): Model
+    {
+        $owner = new class extends Model {
+            use Billable;
+
+            protected $guarded = [];
+        };
+        $owner->anikeen_id = '01JUSER';
+        $owner->anikeen_id_access_token = 'user-token';
+
+        return $owner;
+    }
+
+    private function order(): \Anikeen\Id\Resources\Order
+    {
+        $this->respond(200, ['data' => [], 'meta' => ['current_page' => 1, 'last_page' => 1, 'total' => 0], 'links' => ['next' => null]]);
+        $this->respond(200, ['data' => ['id' => 'ord1', 'status' => 'completed']]);
+
+        return $this->owner()->orders()->find('ord1');
+    }
+
+    private function sentCall(int $index): string
+    {
+        $request = $this->sent[$index]['request'];
+
+        return $request->getMethod() . ' ' . $request->getUri()->getPath() . ' ' . $request->getHeaderLine('Authorization');
+    }
+
+    public function test_an_order_is_shipped_with_carrier_tracking_and_items(): void
+    {
+        $order = $this->order();
+        $this->respond(200, ['data' => []]);
+        $this->respond(201, ['data' => ['id' => 'shp1', 'number' => 'LS-2026-0001', 'order_id' => 'ord1', 'carrier' => 'DHL']]);
+
+        $shipment = $order->shipments()->create([
+            'carrier' => 'DHL',
+            'tracking_number' => '0034',
+            'items' => [['order_item_id' => 'item1', 'units' => 1]],
+        ]);
+
+        $this->assertSame('LS-2026-0001', $shipment->number);
+        $this->assertSame('GET /api/v1/orders/ord1/shipments Bearer user-token', $this->sentCall(2));
+        $this->assertSame('POST /api/v1/orders/ord1/shipments Bearer user-token', $this->sentCall(3));
+        $this->assertSame(['carrier' => 'DHL', 'tracking_number' => '0034', 'items' => [['order_item_id' => 'item1', 'units' => 1]]], $this->sentJson(3));
+    }
+
+    public function test_shipments_are_listed_and_the_delivery_note_is_downloaded(): void
+    {
+        $order = $this->order();
+        $this->respond(200, ['data' => [['id' => 'shp1', 'number' => 'LS-2026-0001']]]);
+        $this->respond(200, ['data' => ['id' => 'shp1', 'number' => 'LS-2026-0001', 'order_id' => 'ord1']]);
+        $this->http->append(new Response(200, ['Content-Type' => 'application/pdf'], '%PDF-1.7 test'));
+
+        $shipments = $order->shipments();
+        $this->assertSame('LS-2026-0001', $shipments->toArray()[0]->number);
+
+        $pdf = $shipments->find('shp1')->deliveryNote();
+
+        $this->assertSame('%PDF-1.7 test', $pdf);
+        $this->assertSame('GET /api/v1/orders/ord1/shipments/shp1/delivery-note Bearer user-token', $this->sentCall(4));
+    }
+
+    public function test_refusals_keep_their_status(): void
+    {
+        $order = $this->order();
+        $this->respond(200, ['data' => []]);
+        $this->respond(409, ['message' => 'Only paid orders can be shipped.', 'error' => 'order_not_paid']);
+
+        try {
+            $order->shipments()->create();
+            $this->fail('expected a ResourceException');
+        } catch (ResourceException $e) {
+            $this->assertSame(409, $e->getCode());
+            $this->assertStringContainsString('Only paid orders can be shipped', $e->getMessage());
+        }
+    }
+}