feat: add Printify order submission and fulfilment tracking

Submit paid orders to Printify via provider API with idempotent
guards, Stripe address mapping, and error handling. Track fulfilment
status through submitted → processing → shipped → delivered via
webhook-driven updates (primary) and Oban Cron polling fallback.

- 9 fulfilment fields on orders (status, provider IDs, tracking, timestamps)
- OrderSubmissionWorker with retry logic, auto-enqueued after Stripe payment
- FulfilmentStatusWorker polls every 30 mins for missed webhook events
- Printify order webhook handlers (sent-to-production, shipment, delivered)
- Admin UI: fulfilment column in table, fulfilment card with tracking info,
  submit/retry and refresh buttons on order detail
- Mox provider mocking for test isolation (Provider.for_type configurable)
- 33 new tests (555 total), verified against real Printify API

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

test/simpleshop_theme/orders/fulfilment_status_worker_test.exs

@@ -0,0 +1,84 @@
+defmodule SimpleshopTheme.Orders.FulfilmentStatusWorkerTest do
+  use SimpleshopTheme.DataCase, async: false
+
+  import Mox
+  import SimpleshopTheme.OrdersFixtures
+
+  alias SimpleshopTheme.Orders
+  alias SimpleshopTheme.Orders.FulfilmentStatusWorker
+  alias SimpleshopTheme.Providers.MockProvider
+
+  setup :verify_on_exit!
+
+  setup do
+    Application.put_env(:simpleshop_theme, :provider_modules, %{
+      "printify" => MockProvider
+    })
+
+    on_exit(fn -> Application.delete_env(:simpleshop_theme, :provider_modules) end)
+    :ok
+  end
+
+  describe "perform/1" do
+    test "no-op when no submitted orders" do
+      assert :ok = FulfilmentStatusWorker.perform(%Oban.Job{args: %{}})
+    end
+
+    test "updates status from submitted to processing" do
+      {order, _variant, _product, _conn} = submitted_order_fixture()
+
+      expect(MockProvider, :get_order_status, fn _conn, provider_order_id ->
+        assert provider_order_id == order.provider_order_id
+
+        {:ok,
+         %{
+           status: "processing",
+           provider_status: "in-production",
+           tracking_number: nil,
+           tracking_url: nil,
+           shipments: []
+         }}
+      end)
+
+      assert :ok = FulfilmentStatusWorker.perform(%Oban.Job{args: %{}})
+
+      updated = Orders.get_order(order.id)
+      assert updated.fulfilment_status == "processing"
+      assert updated.provider_status == "in-production"
+    end
+
+    test "sets tracking info when shipped" do
+      {order, _variant, _product, _conn} = submitted_order_fixture()
+
+      expect(MockProvider, :get_order_status, fn _conn, _pid ->
+        {:ok,
+         %{
+           status: "shipped",
+           provider_status: "shipped",
+           tracking_number: "1Z999AA10123456784",
+           tracking_url: "https://tracking.example.com/1Z999AA10123456784",
+           shipments: []
+         }}
+      end)
+
+      assert :ok = FulfilmentStatusWorker.perform(%Oban.Job{args: %{}})
+
+      updated = Orders.get_order(order.id)
+      assert updated.fulfilment_status == "shipped"
+      assert updated.tracking_number == "1Z999AA10123456784"
+      assert updated.tracking_url == "https://tracking.example.com/1Z999AA10123456784"
+      assert updated.shipped_at != nil
+    end
+
+    test "handles provider error gracefully" do
+      {_order, _variant, _product, _conn} = submitted_order_fixture()
+
+      expect(MockProvider, :get_order_status, fn _conn, _pid ->
+        {:error, {500, %{"message" => "Internal error"}}}
+      end)
+
+      # Should not raise, just log the error
+      assert :ok = FulfilmentStatusWorker.perform(%Oban.Job{args: %{}})
+    end
+  end
+end

test/simpleshop_theme/orders/order_submission_worker_test.exs

@@ -0,0 +1,112 @@
+defmodule SimpleshopTheme.Orders.OrderSubmissionWorkerTest do
+  use SimpleshopTheme.DataCase, async: false
+
+  import Mox
+  import SimpleshopTheme.OrdersFixtures
+
+  alias SimpleshopTheme.Orders
+  alias SimpleshopTheme.Orders.OrderSubmissionWorker
+  alias SimpleshopTheme.Providers.MockProvider
+
+  setup :verify_on_exit!
+
+  setup do
+    Application.put_env(:simpleshop_theme, :provider_modules, %{
+      "printify" => MockProvider
+    })
+
+    on_exit(fn -> Application.delete_env(:simpleshop_theme, :provider_modules) end)
+    :ok
+  end
+
+  describe "perform/1" do
+    test "cancels if order not found" do
+      fake_id = Ecto.UUID.generate()
+
+      assert {:cancel, :order_not_found} =
+               OrderSubmissionWorker.perform(%Oban.Job{args: %{"order_id" => fake_id}})
+    end
+
+    test "cancels if order is not paid" do
+      order = order_fixture()
+      assert order.payment_status == "pending"
+
+      assert {:cancel, :not_paid} =
+               OrderSubmissionWorker.perform(%Oban.Job{args: %{"order_id" => order.id}})
+    end
+
+    test "returns :ok if already submitted" do
+      {order, _variant, _product, _conn} = submitted_order_fixture()
+
+      assert :ok =
+               OrderSubmissionWorker.perform(%Oban.Job{args: %{"order_id" => order.id}})
+    end
+
+    test "errors if no shipping address (will retry)" do
+      order = order_fixture(payment_status: "paid")
+      assert order.shipping_address == %{}
+
+      assert {:error, :no_shipping_address} =
+               OrderSubmissionWorker.perform(%Oban.Job{args: %{"order_id" => order.id}})
+    end
+
+    test "submits to provider successfully" do
+      {order, _variant, _product, _conn} = paid_order_with_products_fixture()
+
+      expect(MockProvider, :submit_order, fn _conn, order_data ->
+        assert order_data.order_number == order.order_number
+        assert length(order_data.line_items) == 1
+        {:ok, %{provider_order_id: "printify_order_123"}}
+      end)
+
+      assert :ok =
+               OrderSubmissionWorker.perform(%Oban.Job{args: %{"order_id" => order.id}})
+
+      updated = Orders.get_order(order.id)
+      assert updated.fulfilment_status == "submitted"
+      assert updated.provider_order_id == "printify_order_123"
+      assert updated.submitted_at != nil
+    end
+
+    test "sets failed status when provider returns error" do
+      {order, _variant, _product, _conn} = paid_order_with_products_fixture()
+
+      expect(MockProvider, :submit_order, fn _conn, _order_data ->
+        {:error, {422, %{"message" => "Invalid address"}}}
+      end)
+
+      assert {:error, {422, _}} =
+               OrderSubmissionWorker.perform(%Oban.Job{args: %{"order_id" => order.id}})
+
+      updated = Orders.get_order(order.id)
+      assert updated.fulfilment_status == "failed"
+      assert updated.fulfilment_error =~ "Provider API error (422)"
+    end
+
+    test "sets failed status when variant not found in local DB" do
+      # Create order with a variant_id that doesn't exist in product variants
+      order =
+        order_fixture(%{
+          variant_id: Ecto.UUID.generate(),
+          payment_status: "paid",
+          shipping_address: %{
+            "name" => "Test",
+            "line1" => "1 Street",
+            "city" => "London",
+            "postal_code" => "SW1",
+            "country" => "GB"
+          }
+        })
+
+      # Need a printify connection for the lookup to proceed
+      SimpleshopTheme.ProductsFixtures.provider_connection_fixture(%{provider_type: "printify"})
+
+      assert {:error, {:variant_not_found, _, _}} =
+               OrderSubmissionWorker.perform(%Oban.Job{args: %{"order_id" => order.id}})
+
+      updated = Orders.get_order(order.id)
+      assert updated.fulfilment_status == "failed"
+      assert updated.fulfilment_error =~ "no longer exists"
+    end
+  end
+end

test/simpleshop_theme/orders_test.exs

@@ -1,10 +1,14 @@
 defmodule SimpleshopTheme.OrdersTest do
   use SimpleshopTheme.DataCase, async: false
 
-  alias SimpleshopTheme.Orders
-
+  import Mox
   import SimpleshopTheme.OrdersFixtures
 
+  alias SimpleshopTheme.Orders
+  alias SimpleshopTheme.Providers.MockProvider
+
+  setup :verify_on_exit!
+
   describe "list_orders/1" do
     test "returns all orders" do
       order1 = order_fixture()
@@ -62,4 +66,154 @@ defmodule SimpleshopTheme.OrdersTest do
       assert counts["failed"] == 1
     end
   end
+
+  describe "submit_to_provider/1" do
+    setup do
+      Application.put_env(:simpleshop_theme, :provider_modules, %{
+        "printify" => MockProvider
+      })
+
+      on_exit(fn -> Application.delete_env(:simpleshop_theme, :provider_modules) end)
+      :ok
+    end
+
+    test "submits order and sets fulfilment status" do
+      {order, _variant, _product, _conn} = paid_order_with_products_fixture()
+
+      expect(MockProvider, :submit_order, fn _conn, order_data ->
+        assert order_data.order_number == order.order_number
+        assert is_list(order_data.line_items)
+        assert hd(order_data.line_items).quantity == 1
+        {:ok, %{provider_order_id: "pfy_123"}}
+      end)
+
+      assert {:ok, updated} = Orders.submit_to_provider(order)
+      assert updated.fulfilment_status == "submitted"
+      assert updated.provider_order_id == "pfy_123"
+      assert updated.submitted_at != nil
+      assert updated.fulfilment_error == nil
+    end
+
+    test "is idempotent when already submitted" do
+      {order, _variant, _product, _conn} = submitted_order_fixture()
+
+      # No mock expectations — provider should not be called
+      assert {:ok, ^order} = Orders.submit_to_provider(order)
+    end
+
+    test "sets failed status on provider error" do
+      {order, _variant, _product, _conn} = paid_order_with_products_fixture()
+
+      expect(MockProvider, :submit_order, fn _conn, _data ->
+        {:error, {500, %{"message" => "Server error"}}}
+      end)
+
+      assert {:error, {500, _}} = Orders.submit_to_provider(order)
+
+      updated = Orders.get_order(order.id)
+      assert updated.fulfilment_status == "failed"
+      assert updated.fulfilment_error =~ "Provider API error (500)"
+    end
+  end
+
+  describe "refresh_fulfilment_status/1" do
+    setup do
+      Application.put_env(:simpleshop_theme, :provider_modules, %{
+        "printify" => MockProvider
+      })
+
+      on_exit(fn -> Application.delete_env(:simpleshop_theme, :provider_modules) end)
+      :ok
+    end
+
+    test "updates tracking info from provider" do
+      {order, _variant, _product, _conn} = submitted_order_fixture()
+
+      expect(MockProvider, :get_order_status, fn _conn, pid ->
+        assert pid == order.provider_order_id
+
+        {:ok,
+         %{
+           status: "shipped",
+           provider_status: "shipped",
+           tracking_number: "TRACK123",
+           tracking_url: "https://track.example.com/TRACK123"
+         }}
+      end)
+
+      assert {:ok, updated} = Orders.refresh_fulfilment_status(order)
+      assert updated.fulfilment_status == "shipped"
+      assert updated.tracking_number == "TRACK123"
+      assert updated.tracking_url == "https://track.example.com/TRACK123"
+      assert updated.shipped_at != nil
+    end
+
+    test "no-op when no provider_order_id" do
+      order = order_fixture(payment_status: "paid")
+      assert is_nil(order.provider_order_id)
+
+      assert {:ok, ^order} = Orders.refresh_fulfilment_status(order)
+    end
+  end
+
+  describe "update_fulfilment/2" do
+    test "updates fulfilment fields" do
+      order = order_fixture()
+
+      assert {:ok, updated} =
+               Orders.update_fulfilment(order, %{
+                 fulfilment_status: "submitted",
+                 provider_order_id: "test_123"
+               })
+
+      assert updated.fulfilment_status == "submitted"
+      assert updated.provider_order_id == "test_123"
+    end
+
+    test "validates fulfilment status inclusion" do
+      order = order_fixture()
+
+      assert {:error, changeset} =
+               Orders.update_fulfilment(order, %{fulfilment_status: "bogus"})
+
+      assert errors_on(changeset).fulfilment_status != []
+    end
+  end
+
+  describe "list_submitted_orders/0" do
+    test "returns orders with submitted or processing status" do
+      {submitted, _v, _p, _c} = submitted_order_fixture()
+
+      {processing, _v2, _p2, _c2} = submitted_order_fixture()
+
+      {:ok, processing} =
+        Orders.update_fulfilment(processing, %{fulfilment_status: "processing"})
+
+      _unfulfilled = order_fixture(payment_status: "paid")
+
+      orders = Orders.list_submitted_orders()
+      ids = Enum.map(orders, & &1.id)
+
+      assert submitted.id in ids
+      assert processing.id in ids
+      assert length(orders) == 2
+    end
+
+    test "returns empty list when no submitted orders" do
+      order_fixture()
+      assert Orders.list_submitted_orders() == []
+    end
+  end
+
+  describe "get_order_by_number/1" do
+    test "finds order by order number" do
+      order = order_fixture()
+      found = Orders.get_order_by_number(order.order_number)
+      assert found.id == order.id
+    end
+
+    test "returns nil for unknown order number" do
+      assert is_nil(Orders.get_order_by_number("SS-000000-XXXX"))
+    end
+  end
 end

test/simpleshop_theme/webhooks_test.exs

@@ -1,19 +1,19 @@
 defmodule SimpleshopTheme.WebhooksTest do
-  use SimpleshopTheme.DataCase
+  use SimpleshopTheme.DataCase, async: false
 
+  alias SimpleshopTheme.Orders
   alias SimpleshopTheme.Webhooks
 
   import SimpleshopTheme.ProductsFixtures
+  import SimpleshopTheme.OrdersFixtures
 
   setup do
     conn = provider_connection_fixture(%{provider_type: "printify"})
     {:ok, provider_connection: conn}
   end
 
-  describe "handle_printify_event/2" do
+  describe "handle_printify_event/2 — product events" do
     test "product:updated triggers sync", %{provider_connection: _conn} do
-      # With inline Oban, the job executes immediately (and fails due to no real API key)
-      # But the handler should still return {:ok, _} after inserting the job
       result =
         Webhooks.handle_printify_event(
           "product:updated",
@@ -52,7 +52,6 @@ defmodule SimpleshopTheme.WebhooksTest do
     end
 
     test "returns error when no provider connection" do
-      # Delete all connections first
       SimpleshopTheme.Repo.delete_all(SimpleshopTheme.Products.ProviderConnection)
 
       assert {:error, :no_connection} =
@@ -62,4 +61,75 @@ defmodule SimpleshopTheme.WebhooksTest do
                )
     end
   end
+
+  describe "handle_printify_event/2 — order events" do
+    test "order:sent-to-production updates fulfilment status" do
+      {order, _v, _p, _c} = submitted_order_fixture()
+
+      assert {:ok, updated} =
+               Webhooks.handle_printify_event("order:sent-to-production", %{
+                 "id" => "printify_abc",
+                 "external_id" => order.order_number
+               })
+
+      assert updated.fulfilment_status == "processing"
+      assert updated.provider_status == "in-production"
+    end
+
+    test "order:shipment:created sets tracking info and shipped_at" do
+      {order, _v, _p, _c} = submitted_order_fixture()
+
+      assert {:ok, updated} =
+               Webhooks.handle_printify_event("order:shipment:created", %{
+                 "id" => "printify_abc",
+                 "external_id" => order.order_number,
+                 "shipments" => [
+                   %{
+                     "tracking_number" => "1Z999AA1",
+                     "tracking_url" => "https://ups.com/track/1Z999AA1"
+                   }
+                 ]
+               })
+
+      assert updated.fulfilment_status == "shipped"
+      assert updated.tracking_number == "1Z999AA1"
+      assert updated.tracking_url == "https://ups.com/track/1Z999AA1"
+      assert updated.shipped_at != nil
+    end
+
+    test "order:shipment:delivered sets delivered_at" do
+      {order, _v, _p, _c} = submitted_order_fixture()
+
+      # First mark as shipped
+      {:ok, order} =
+        Orders.update_fulfilment(order, %{
+          fulfilment_status: "shipped",
+          shipped_at: DateTime.utc_now() |> DateTime.truncate(:second)
+        })
+
+      assert {:ok, updated} =
+               Webhooks.handle_printify_event("order:shipment:delivered", %{
+                 "id" => "printify_abc",
+                 "external_id" => order.order_number
+               })
+
+      assert updated.fulfilment_status == "delivered"
+      assert updated.delivered_at != nil
+    end
+
+    test "order event with unknown external_id returns error" do
+      assert {:error, :order_not_found} =
+               Webhooks.handle_printify_event("order:sent-to-production", %{
+                 "id" => "printify_abc",
+                 "external_id" => "SS-000000-NOPE"
+               })
+    end
+
+    test "order event with missing external_id returns error" do
+      assert {:error, :missing_external_id} =
+               Webhooks.handle_printify_event("order:sent-to-production", %{
+                 "id" => "printify_abc"
+               })
+    end
+  end
 end