add: outline context

lib/radiator/outline.ex

@@ -0,0 +1,104 @@
+defmodule Radiator.Outline do
+  @moduledoc """
+  The Outline context.
+  """
+
+  import Ecto.Query, warn: false
+  alias Radiator.Repo
+
+  alias Radiator.Outline.Node
+
+  @doc """
+  Returns the list of nodes.
+
+  ## Examples
+
+      iex> list_nodes()
+      [%Node{}, ...]
+
+  """
+  def list_nodes do
+    Repo.all(Node)
+  end
+
+  @doc """
+  Gets a single node.
+
+  Raises `Ecto.NoResultsError` if the Node does not exist.
+
+  ## Examples
+
+      iex> get_node!(123)
+      %Node{}
+
+      iex> get_node!(456)
+      ** (Ecto.NoResultsError)
+
+  """
+  def get_node!(id), do: Repo.get!(Node, id)
+
+  @doc """
+  Creates a node.
+
+  ## Examples
+
+      iex> create_node(%{field: value})
+      {:ok, %Node{}}
+
+      iex> create_node(%{field: bad_value})
+      {:error, %Ecto.Changeset{}}
+
+  """
+  def create_node(attrs \\ %{}) do
+    %Node{}
+    |> Node.changeset(attrs)
+    |> Repo.insert()
+  end
+
+  @doc """
+  Updates a node.
+
+  ## Examples
+
+      iex> update_node(node, %{field: new_value})
+      {:ok, %Node{}}
+
+      iex> update_node(node, %{field: bad_value})
+      {:error, %Ecto.Changeset{}}
+
+  """
+  def update_node(%Node{} = node, attrs) do
+    node
+    |> Node.changeset(attrs)
+    |> Repo.update()
+  end
+
+  @doc """
+  Deletes a node.
+
+  ## Examples
+
+      iex> delete_node(node)
+      {:ok, %Node{}}
+
+      iex> delete_node(node)
+      {:error, %Ecto.Changeset{}}
+
+  """
+  def delete_node(%Node{} = node) do
+    Repo.delete(node)
+  end
+
+  @doc """
+  Returns an `%Ecto.Changeset{}` for tracking node changes.
+
+  ## Examples
+
+      iex> change_node(node)
+      %Ecto.Changeset{data: %Node{}}
+
+  """
+  def change_node(%Node{} = node, attrs \\ %{}) do
+    Node.changeset(node, attrs)
+  end
+end

lib/radiator/outline/node.ex

@@ -0,0 +1,22 @@
+defmodule Radiator.Outline.Node do
+  use Ecto.Schema
+  import Ecto.Changeset
+
+  @primary_key {:uuid, :binary_id, autogenerate: true}
+  schema "outline_nodes" do
+    field :content, :string
+
+    timestamps(type: :utc_datetime)
+  end
+
+  @fields [
+    :content
+  ]
+
+  @doc false
+  def changeset(node, attrs) do
+    node
+    |> cast(attrs, @fields)
+    |> validate_required(@fields)
+  end
+end

lib/radiator_web/live/outline_live/index.ex

@@ -1,10 +1,43 @@
 defmodule RadiatorWeb.OutlineLive.Index do
   use RadiatorWeb, :live_view
 
+  alias Radiator.Outline
+  alias Radiator.Outline.Node
+
   @impl true
   def mount(_params, _session, socket) do
+    node = %Node{}
+    changeset = Outline.change_node(node)
+
     socket
     |> assign(:page_title, "Outline")
+    |> assign(:node, node)
+    |> assign(:form, to_form(changeset))
+    |> stream_configure(:nodes, dom_id: &"node-#{&1.uuid}")
+    |> stream(:nodes, Outline.list_nodes())
     |> reply(:ok)
   end
+
+  @impl true
+  def handle_event("update", %{"node" => _params}, socket) do
+    socket
+    |> reply(:noreply)
+  end
+
+  @impl true
+  def handle_event("next", %{"node" => params}, socket) do
+    {:ok, node} = Outline.create_node(params)
+
+    socket
+    |> stream_insert(:nodes, node, at: 0)
+    |> reply(:noreply)
+  end
+
+  @impl true
+  def handle_event("delete", %{"uuid" => uuid}, socket) do
+    node = Outline.get_node!(uuid)
+    {:ok, _} = Outline.delete_node(node)
+
+    {:noreply, stream_delete(socket, :nodes, node)}
+  end
 end

lib/radiator_web/live/outline_live/index.html.heex

@@ -1,4 +1,25 @@
 <section>
   <h1>Outline</h1>
+
   <h2>Inbox</h2>
+
+  <.focus_wrap id="input-form-wrap">
+    <.form id="inbox-form" for={@form} phx-change="update" phx-submit="next">
+      <.input type="text" field={@form[:content]} />
+      <.input type="hidden" field={@form[:uuid]} />
+    </.form>
+  </.focus_wrap>
+
+  <ul id="inbox" class="mt-8 list-disc list-inside" phx-update="stream">
+    <li :for={{dom_id, node} <- @streams.nodes} id={dom_id}>
+      <%= node.content %>
+      <.link
+        phx-click={JS.push("delete", value: %{uuid: node.uuid}) |> hide("##{dom_id}")}
+        data-confirm="Delete?"
+      >
+        <.icon name="hero-x-circle" class="w-5 h-5" />
+        <div class="sr-only">Delete</div>
+      </.link>
+    </li>
+  </ul>
 </section>

priv/repo/migrations/20231120103619_create_outline_nodes.exs

@@ -0,0 +1,12 @@
+defmodule Radiator.Repo.Migrations.CreateOutlineNodes do
+  use Ecto.Migration
+
+  def change do
+    create table(:outline_nodes, primary_key: false) do
+      add :uuid, :uuid, primary_key: true
+      add :content, :text
+
+      timestamps(type: :utc_datetime)
+    end
+  end
+end

test/radiator/outline_test.exs

@@ -0,0 +1,59 @@
+defmodule Radiator.OutlineTest do
+  use Radiator.DataCase
+
+  alias Radiator.Outline
+
+  describe "outline_nodes" do
+    alias Radiator.Outline.Node
+
+    import Radiator.OutlineFixtures
+
+    @invalid_attrs %{content: nil}
+
+    test "list_nodes/0 returns all nodes" do
+      node = node_fixture()
+      assert Outline.list_nodes() == [node]
+    end
+
+    test "get_node!/1 returns the node with given id" do
+      node = node_fixture()
+      assert Outline.get_node!(node.uuid) == node
+    end
+
+    test "create_node/1 with valid data creates a node" do
+      valid_attrs = %{content: "some content"}
+
+      assert {:ok, %Node{} = node} = Outline.create_node(valid_attrs)
+      assert node.content == "some content"
+    end
+
+    test "create_node/1 with invalid data returns error changeset" do
+      assert {:error, %Ecto.Changeset{}} = Outline.create_node(@invalid_attrs)
+    end
+
+    test "update_node/2 with valid data updates the node" do
+      node = node_fixture()
+      update_attrs = %{content: "some updated content"}
+
+      assert {:ok, %Node{} = node} = Outline.update_node(node, update_attrs)
+      assert node.content == "some updated content"
+    end
+
+    test "update_node/2 with invalid data returns error changeset" do
+      node = node_fixture()
+      assert {:error, %Ecto.Changeset{}} = Outline.update_node(node, @invalid_attrs)
+      assert node == Outline.get_node!(node.uuid)
+    end
+
+    test "delete_node/1 deletes the node" do
+      node = node_fixture()
+      assert {:ok, %Node{}} = Outline.delete_node(node)
+      assert_raise Ecto.NoResultsError, fn -> Outline.get_node!(node.uuid) end
+    end
+
+    test "change_node/1 returns a node changeset" do
+      node = node_fixture()
+      assert %Ecto.Changeset{} = Outline.change_node(node)
+    end
+  end
+end

test/radiator_web/live/outline_live_test.exs

@@ -3,10 +3,12 @@ defmodule RadiatorWeb.OutlineLiveTest do
 
   import Phoenix.LiveViewTest
   import Radiator.AccountsFixtures
+  import Radiator.OutlineFixtures
 
-  describe "Outline page" do
+  describe "Outline page is restricted" do
     test "can render if user is logged in", %{conn: conn} do
-      {:ok, _live, html} = conn |> log_in_user(user_fixture()) |> live(~p"/admin/outline")
+      user = user_fixture()
+      {:ok, _live, html} = conn |> log_in_user(user) |> live(~p"/admin/outline")
 
       assert html =~ "Outline</h1>"
     end
@@ -23,15 +25,38 @@ defmodule RadiatorWeb.OutlineLiveTest do
   describe "Outline page has an inbox" do
     setup %{conn: conn} do
       user = user_fixture()
-      %{conn: log_in_user(conn, user)}
+      node = node_fixture()
+      %{conn: log_in_user(conn, user), node: node}
+    end
+
+    test "lists all nodes", %{conn: conn, node: node} do
+      {:ok, _live, html} = live(conn, ~p"/admin/outline")
+
+      assert html =~ "Inbox</h2>"
+      assert html =~ node.content
+    end
+
+    test "save new node", %{conn: conn} do
+      {:ok, live, _html} = live(conn, ~p"/admin/outline")
+
+      assert live
+             |> form("#inbox-form", node: %{content: "new node content"})
+             |> render_submit()
+
+      assert live
+             |> element("ul#inbox")
+             |> render() =~ "new node content"
     end
 
-    test "inbox has a headline", %{conn: conn} do
+    test "delete existing node", %{conn: conn, node: node} do
       {:ok, live, _html} = live(conn, ~p"/admin/outline")
 
       assert live
-             |> element("h2", "Inbox")
-             |> render() =~ "Inbox"
+             |> element("#node-#{node.uuid} a", "Delete")
+             |> render_click()
+
+      refute live
+             |> has_element?("#node-#{node.uuid}")
     end
   end
 end

test/support/fixtures/outline_fixtures.ex

@@ -0,0 +1,18 @@
+defmodule Radiator.OutlineFixtures do
+  @moduledoc """
+  This module defines test helpers for creating
+  entities via the `Radiator.Outline` context.
+  """
+
+  @doc """
+  Generate a node.
+  """
+  def node_fixture(attrs \\ %{}) do
+    {:ok, node} =
+      attrs
+      |> Enum.into(%{content: "some content"})
+      |> Radiator.Outline.create_node()
+
+    node
+  end
+end