add no-JS contact form and noscript banner

Wire up the contact form with action/method/name attrs so it works
without JavaScript. Add ContactNotifier, ContactController, and a
noscript info banner in the shop root layout.

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

test/berrypod/contact_notifier_test.exs

@@ -0,0 +1,87 @@
+defmodule Berrypod.ContactNotifierTest do
+  use Berrypod.DataCase, async: true
+
+  import Swoosh.TestAssertions
+
+  alias Berrypod.ContactNotifier
+  alias Berrypod.Settings
+
+  describe "deliver_contact_message/1" do
+    test "sends email with valid params" do
+      assert {:ok, _} =
+               ContactNotifier.deliver_contact_message(%{
+                 "name" => "Jo Bloggs",
+                 "email" => "jo@example.com",
+                 "subject" => "Question about prints",
+                 "message" => "Do you ship to Mars?"
+               })
+
+      assert_email_sent(fn email ->
+        assert email.subject =~ "Question about prints"
+        assert email.text_body =~ "Jo Bloggs"
+        assert email.text_body =~ "jo@example.com"
+        assert email.text_body =~ "Do you ship to Mars?"
+        assert {"", "jo@example.com"} = email.reply_to
+      end)
+    end
+
+    test "sends to contact_email when set" do
+      Settings.put_setting("contact_email", "shop@example.com")
+
+      assert {:ok, _} =
+               ContactNotifier.deliver_contact_message(%{
+                 "name" => "Test",
+                 "email" => "test@example.com",
+                 "message" => "Hello"
+               })
+
+      assert_email_sent(fn email ->
+        assert [{"", "shop@example.com"}] = email.to
+      end)
+    end
+
+    test "uses default subject when not provided" do
+      assert {:ok, _} =
+               ContactNotifier.deliver_contact_message(%{
+                 "name" => "Test",
+                 "email" => "test@example.com",
+                 "message" => "Hello"
+               })
+
+      assert_email_sent(fn email ->
+        assert email.subject =~ "Contact form message"
+      end)
+    end
+
+    test "returns error for missing name" do
+      assert {:error, :invalid_params} =
+               ContactNotifier.deliver_contact_message(%{
+                 "name" => "",
+                 "email" => "test@example.com",
+                 "message" => "Hello"
+               })
+    end
+
+    test "returns error for missing email" do
+      assert {:error, :invalid_params} =
+               ContactNotifier.deliver_contact_message(%{
+                 "name" => "Test",
+                 "email" => "",
+                 "message" => "Hello"
+               })
+    end
+
+    test "returns error for missing message" do
+      assert {:error, :invalid_params} =
+               ContactNotifier.deliver_contact_message(%{
+                 "name" => "Test",
+                 "email" => "test@example.com",
+                 "message" => ""
+               })
+    end
+
+    test "returns error for missing keys" do
+      assert {:error, :invalid_params} = ContactNotifier.deliver_contact_message(%{})
+    end
+  end
+end

test/berrypod_web/controllers/contact_controller_test.exs

@@ -0,0 +1,48 @@
+defmodule BerrypodWeb.ContactControllerTest do
+  use BerrypodWeb.ConnCase, async: false
+
+  import Berrypod.AccountsFixtures
+  import Swoosh.TestAssertions
+
+  setup do
+    user_fixture()
+    {:ok, _} = Berrypod.Settings.set_site_live(true)
+    # Clear confirmation email from user_fixture
+    Swoosh.TestAssertions.assert_email_sent()
+    :ok
+  end
+
+  describe "POST /contact/send" do
+    test "sends email and redirects with success flash", %{conn: conn} do
+      conn =
+        post(conn, ~p"/contact/send", %{
+          "name" => "Jo Bloggs",
+          "email" => "jo@example.com",
+          "subject" => "Question",
+          "message" => "Do you ship internationally?"
+        })
+
+      assert redirected_to(conn) == "/contact"
+      assert Phoenix.Flash.get(conn.assigns.flash, :info) =~ "Message sent"
+
+      assert_email_sent(fn email ->
+        assert email.subject =~ "Question"
+        assert email.text_body =~ "Do you ship internationally?"
+      end)
+    end
+
+    test "redirects with error flash when required fields missing", %{conn: conn} do
+      conn = post(conn, ~p"/contact/send", %{"name" => "", "email" => "", "message" => ""})
+
+      assert redirected_to(conn) == "/contact"
+      assert Phoenix.Flash.get(conn.assigns.flash, :error) =~ "required fields"
+    end
+
+    test "redirects with error flash when params empty", %{conn: conn} do
+      conn = post(conn, ~p"/contact/send", %{})
+
+      assert redirected_to(conn) == "/contact"
+      assert Phoenix.Flash.get(conn.assigns.flash, :error) =~ "required fields"
+    end
+  end
+end