feat: first take at UI app

lib/bds/application.ex

@@ -3,6 +3,31 @@ defmodule BDS.Application do
 
   use Application
 
+  def desktop_children(env \\ nil)
+
+  def desktop_children(:test), do: []
+
+  def desktop_children(_env) do
+    if Application.get_env(:bds, BDS.Application)[:desktop_adapter] == :desktop do
+      [
+        {BDS.Desktop.Server, []},
+        {Desktop.Window,
+         [
+           app: :bds,
+           id: BDS.Desktop.MainWindow,
+           title: Application.get_env(:bds, :desktop)[:title] || "Blogging Desktop Server",
+           size: Application.get_env(:bds, :desktop)[:window_size] || {1440, 900},
+           min_size: Application.get_env(:bds, :desktop)[:window_min_size] || {1100, 700},
+           menubar: BDS.Desktop.MenuBar,
+           icon_menu: BDS.Desktop.Menu,
+           url: &BDS.Desktop.url/0
+         ]}
+      ]
+    else
+      []
+    end
+  end
+
   @impl true
   def start(_type, _args) do
     children = [
@@ -14,9 +39,15 @@ defmodule BDS.Application do
       BDS.Scripting.JobStore,
       {Task.Supervisor, name: BDS.Scripting.TaskSupervisor},
       BDS.Scripting.JobSupervisor
+      | desktop_children(current_env())
     ]
 
     opts = [strategy: :one_for_one, name: BDS.Supervisor]
     Supervisor.start_link(children, opts)
   end
+
+  defp current_env do
+    Application.get_env(:bds, :current_env_override) ||
+      if(Code.ensure_loaded?(Mix), do: Mix.env(), else: :prod)
+  end
 end

lib/bds/desktop.ex

@@ -0,0 +1,12 @@
+defmodule BDS.Desktop do
+  @moduledoc false
+
+  def url do
+    Application.get_env(:bds, :desktop)[:port]
+    |> url()
+  end
+
+  def url(port) when is_integer(port) do
+    "http://127.0.0.1:#{port}/"
+  end
+end

lib/bds/desktop/main_window.ex

@@ -0,0 +1,3 @@
+defmodule BDS.Desktop.MainWindow do
+  @moduledoc false
+end

lib/bds/desktop/menu.ex

@@ -0,0 +1,42 @@
+defmodule BDS.Desktop.Menu do
+  @moduledoc false
+
+  use Desktop.Menu
+  alias Desktop.Window
+
+  @impl true
+  def mount(menu) do
+    {:ok, menu}
+  end
+
+  @impl true
+  def render(assigns) do
+    ~H"""
+    <menu>
+      <item onclick="open">Open</item>
+      <hr />
+      <item onclick="quit">Quit</item>
+    </menu>
+    """
+  end
+
+  @impl true
+  def handle_event("open", menu) do
+    Window.show(BDS.Desktop.MainWindow)
+    {:noreply, menu}
+  end
+
+  def handle_event("quit", menu) do
+    Window.quit()
+    {:noreply, menu}
+  end
+
+  def handle_event(_, menu) do
+    {:noreply, menu}
+  end
+
+  @impl true
+  def handle_info(_, menu) do
+    {:noreply, menu}
+  end
+end

lib/bds/desktop/menu_bar.ex

@@ -0,0 +1,73 @@
+defmodule BDS.Desktop.MenuBar do
+  @moduledoc false
+
+  use Desktop.Menu
+  alias Desktop.Window
+
+  def groups(opts \\ []) do
+    dev_mode? = Keyword.get(opts, :dev_mode?, false)
+
+    [
+      %{id: :app, label: "App", items: [%{id: :about, label: "About"}]},
+      %{id: :file, label: "File", items: [%{id: :new_post, label: "New Post"}, %{id: :close_tab, label: "Close Tab"}]},
+      %{id: :edit, label: "Edit", items: [%{id: :undo, label: "Undo"}, %{id: :redo, label: "Redo"}]},
+      %{id: :view, label: "View", items: view_items(dev_mode?)},
+      %{id: :window, label: "Window", items: [%{id: :minimize, label: "Minimize"}]},
+      %{id: :help, label: "Help", items: [%{id: :documentation, label: "Documentation"}]}
+    ]
+  end
+
+  @impl true
+  def mount(menu) do
+    {:ok,
+     Desktop.Menu.assign(
+       menu,
+       :groups,
+       groups(dev_mode?: Application.get_env(:bds, :dev_routes, false))
+     )}
+  end
+
+  @impl true
+  def render(assigns) do
+    ~H"""
+    <menubar>
+      <%= for group <- @groups do %>
+        <menu label={group.label}>
+          <%= for item <- group.items do %>
+            <item onclick={Atom.to_string(item.id)}>{item.label}</item>
+          <% end %>
+        </menu>
+      <% end %>
+    </menubar>
+    """
+  end
+
+  @impl true
+  def handle_event("quit", menu) do
+    Window.quit()
+    {:noreply, menu}
+  end
+
+  def handle_event(_, menu) do
+    {:noreply, menu}
+  end
+
+  @impl true
+  def handle_info(_, menu) do
+    {:noreply, menu}
+  end
+
+  defp view_items(dev_mode?) do
+    items = [
+      %{id: :toggle_sidebar, label: "Toggle Sidebar"},
+      %{id: :toggle_panel, label: "Toggle Panel"},
+      %{id: :toggle_assistant_sidebar, label: "Toggle Assistant Sidebar"}
+    ]
+
+    if dev_mode? do
+      items ++ [%{id: :toggle_dev_tools, label: "Toggle Dev Tools"}]
+    else
+      items
+    end
+  end
+end

lib/bds/desktop/router.ex

@@ -0,0 +1,49 @@
+defmodule BDS.Desktop.Router do
+  @moduledoc false
+
+  use Plug.Router
+
+  plug :put_secret_key_base
+
+  plug Plug.Session,
+    store: :cookie,
+    key: "_bds_desktop_key",
+    signing_salt: "desktop-shell"
+
+  plug :match
+  plug Desktop.Auth
+
+  plug Plug.Static,
+    at: "/assets",
+    from: {:bds, "priv/ui"},
+    only: ["app.css", "app.js"]
+
+  plug :dispatch
+
+  get "/" do
+    conn
+    |> Plug.Conn.put_resp_content_type("text/html")
+    |> Plug.Conn.send_resp(200, BDS.Desktop.ShellController.index_html())
+  end
+
+  get "/health" do
+    Plug.Conn.send_resp(conn, 200, "ok")
+  end
+
+  match _ do
+    Plug.Conn.send_resp(conn, 404, "not found")
+  end
+
+  defp put_secret_key_base(conn, _opts) do
+    if conn.secret_key_base do
+      conn
+    else
+      %{conn | secret_key_base: desktop_secret_key_base()}
+    end
+  end
+
+  defp desktop_secret_key_base do
+    Application.get_env(:bds, :desktop)[:secret_key_base] ||
+      raise "missing :desktop secret_key_base configuration"
+  end
+end

lib/bds/desktop/server.ex

@@ -0,0 +1,38 @@
+defmodule BDS.Desktop.Server do
+  @moduledoc false
+
+  use GenServer
+
+  def child_spec(opts) do
+    %{
+      id: __MODULE__,
+      start: {__MODULE__, :start_link, [opts]}
+    }
+  end
+
+  def start_link(opts) do
+    GenServer.start_link(__MODULE__, opts, name: __MODULE__)
+  end
+
+  def url do
+    BDS.Desktop.url(port())
+  end
+
+  def port do
+    Application.get_env(:bds, :desktop)[:port] || 4010
+  end
+
+  @impl true
+  def init(_opts) do
+    {:ok, bandit_pid} =
+      Bandit.start_link(
+        plug: BDS.Desktop.Router,
+        scheme: :http,
+        ip: {127, 0, 0, 1},
+        port: port(),
+        startup_log: false
+      )
+
+    {:ok, %{bandit_pid: bandit_pid}}
+  end
+end

lib/bds/desktop/shell_controller.ex

@@ -0,0 +1,7 @@
+defmodule BDS.Desktop.ShellController do
+  @moduledoc false
+
+  def index_html do
+    File.read!(Application.app_dir(:bds, ["priv", "ui", "index.html"]))
+  end
+end

lib/bds/ui/commands.ex

@@ -0,0 +1,16 @@
+defmodule BDS.UI.Commands do
+  @moduledoc false
+
+  alias BDS.UI.MenuBar
+
+  def handle_shortcut(state, shortcut) when is_map(shortcut) do
+    key = shortcut |> Map.get(:key, Map.get(shortcut, "key", "")) |> String.downcase()
+    primary = Map.get(shortcut, :meta, false) or Map.get(shortcut, :ctrl, false)
+
+    cond do
+      primary and key == "b" -> MenuBar.execute(state, :toggle_sidebar)
+      primary and key == "w" -> MenuBar.execute(state, :close_tab)
+      true -> state
+    end
+  end
+end

lib/bds/ui/menu_bar.ex

@@ -0,0 +1,41 @@
+defmodule BDS.UI.MenuBar do
+  @moduledoc false
+
+  alias BDS.UI.Workbench
+
+  def default_groups(opts \\ []) do
+    dev_mode? = Keyword.get(opts, :dev_mode?, false)
+
+    [
+      %{id: :app, items: [%{id: :about}, %{id: :settings}]},
+      %{id: :file, items: [%{id: :new_post}, %{id: :new_page}, %{id: :close_tab}]},
+      %{id: :edit, items: [%{id: :undo}, %{id: :redo}]},
+      %{id: :view, items: view_items(dev_mode?)},
+      %{id: :window, items: [%{id: :minimize}, %{id: :zoom}]},
+      %{id: :help, items: [%{id: :documentation}, %{id: :api_documentation}]}
+    ]
+  end
+
+  def execute(state, :toggle_sidebar), do: Workbench.toggle_sidebar(state)
+  def execute(state, :toggle_panel), do: Workbench.toggle_panel(state)
+  def execute(state, :toggle_assistant_sidebar), do: Workbench.toggle_assistant_sidebar(state)
+
+  def execute(state, :close_tab) do
+    case state.active_tab do
+      {type, id} -> Workbench.close_tab(state, type, id)
+      nil -> state
+    end
+  end
+
+  def execute(state, _command_id), do: state
+
+  defp view_items(dev_mode?) do
+    base = [
+      %{id: :toggle_sidebar},
+      %{id: :toggle_panel},
+      %{id: :toggle_assistant_sidebar}
+    ]
+
+    if dev_mode?, do: base ++ [%{id: :toggle_dev_tools}], else: base
+  end
+end

lib/bds/ui/registry.ex

@@ -0,0 +1,44 @@
+defmodule BDS.UI.Registry do
+  @moduledoc false
+
+  @sidebar_views [
+    %{id: :posts, label: "Posts", activity_group: :top, editor_route: :post, entity_tab: true, demo_kind: :entity},
+    %{id: :pages, label: "Pages", activity_group: :top, editor_route: :post, entity_tab: true, demo_kind: :entity},
+    %{id: :media, label: "Media", activity_group: :top, editor_route: :media, entity_tab: true, demo_kind: :entity},
+    %{id: :scripts, label: "Scripts", activity_group: :top, editor_route: :scripts, entity_tab: true, demo_kind: :entity},
+    %{id: :templates, label: "Templates", activity_group: :top, editor_route: :templates, entity_tab: true, demo_kind: :entity},
+    %{id: :tags, label: "Tags", activity_group: :top, editor_route: :tags, singleton: true, demo_kind: :singleton},
+    %{id: :chat, label: "AI Assistant", activity_group: :top, editor_route: :chat, entity_tab: true, demo_kind: :entity},
+    %{id: :import, label: "Import", activity_group: :top, editor_route: :import, entity_tab: true, demo_kind: :entity},
+    %{id: :git, label: "Source Control", activity_group: :bottom, editor_route: :git_diff, entity_tab: true, demo_kind: :entity},
+    %{id: :settings, label: "Settings", activity_group: :bottom, editor_route: :settings, singleton: true, demo_kind: :singleton}
+  ]
+
+  @editor_routes [
+    %{id: :dashboard, singleton: true, entity_tab: false, title: "Dashboard"},
+    %{id: :post, singleton: false, entity_tab: true, title: "Post"},
+    %{id: :media, singleton: false, entity_tab: true, title: "Media"},
+    %{id: :settings, singleton: true, entity_tab: false, title: "Settings"},
+    %{id: :style, singleton: true, entity_tab: false, title: "Style"},
+    %{id: :tags, singleton: true, entity_tab: false, title: "Tags"},
+    %{id: :chat, singleton: false, entity_tab: true, title: "Chat"},
+    %{id: :import, singleton: false, entity_tab: true, title: "Import"},
+    %{id: :menu_editor, singleton: true, entity_tab: false, title: "Menu"},
+    %{id: :metadata_diff, singleton: true, entity_tab: false, title: "Metadata Diff"},
+    %{id: :git_diff, singleton: false, entity_tab: true, title: "Git Diff"},
+    %{id: :documentation, singleton: true, entity_tab: false, title: "Documentation"},
+    %{id: :api_documentation, singleton: true, entity_tab: false, title: "API"},
+    %{id: :site_validation, singleton: true, entity_tab: false, title: "Site Validation"},
+    %{id: :translation_validation, singleton: true, entity_tab: false, title: "Translations"},
+    %{id: :scripts, singleton: false, entity_tab: true, title: "Script"},
+    %{id: :templates, singleton: false, entity_tab: true, title: "Template"},
+    %{id: :find_duplicates, singleton: true, entity_tab: false, title: "Find Duplicates"}
+  ]
+
+  def default_sidebar_view, do: :posts
+  def sidebar_views, do: @sidebar_views
+  def editor_routes, do: @editor_routes
+
+  def sidebar_view(id) when is_atom(id), do: Enum.find(@sidebar_views, &(&1.id == id))
+  def editor_route(id) when is_atom(id), do: Enum.find(@editor_routes, &(&1.id == id))
+end

lib/bds/ui/session.ex

@@ -0,0 +1,68 @@
+defmodule BDS.UI.Session do
+  @moduledoc false
+
+  alias BDS.UI.Workbench
+
+  def serialize(state) do
+    %{
+      "sidebar_visible" => state.sidebar_visible,
+      "sidebar_width" => state.sidebar_width,
+      "active_view" => Atom.to_string(state.active_view),
+      "assistant_sidebar_visible" => state.assistant_sidebar_visible,
+      "assistant_sidebar_width" => state.assistant_sidebar_width,
+      "panel" => %{
+        "visible" => state.panel.visible,
+        "active_tab" => Atom.to_string(state.panel.active_tab)
+      },
+      "tabs" =>
+        Enum.map(state.tabs, fn tab ->
+          %{
+            "type" => Atom.to_string(tab.type),
+            "id" => tab.id,
+            "is_transient" => tab.is_transient
+          }
+        end),
+      "active_tab" => encode_tab_ref(state.active_tab),
+      "dirty_tabs" => Enum.map(state.dirty_tabs, &encode_tab_ref/1)
+    }
+  end
+
+  def restore(payload) when is_map(payload) do
+    state =
+      Workbench.new(
+        sidebar_visible: Map.get(payload, "sidebar_visible", true),
+        sidebar_width: Map.get(payload, "sidebar_width", 280),
+        active_view: Map.get(payload, "active_view", "posts"),
+        assistant_sidebar_visible: Map.get(payload, "assistant_sidebar_visible", false),
+        assistant_sidebar_width: Map.get(payload, "assistant_sidebar_width", 360),
+        panel_visible: get_in(payload, ["panel", "visible"]) || false,
+        panel_tab: atomize(get_in(payload, ["panel", "active_tab"]) || "tasks"),
+        dirty_tabs: Enum.map(Map.get(payload, "dirty_tabs", []), &decode_tab_ref/1)
+      )
+
+    tabs =
+      Enum.map(Map.get(payload, "tabs", []), fn tab ->
+        %{
+          type: atomize(Map.get(tab, "type", "post")),
+          id: Map.get(tab, "id"),
+          is_transient: Map.get(tab, "is_transient", false)
+        }
+      end)
+
+    active_tab = decode_tab_ref(Map.get(payload, "active_tab"))
+
+    %{state | tabs: tabs, active_tab: active_tab, editor_route: active_route(active_tab)}
+  end
+
+  defp encode_tab_ref(nil), do: nil
+  defp encode_tab_ref({type, id}), do: %{"type" => Atom.to_string(type), "id" => id}
+
+  defp decode_tab_ref(nil), do: nil
+  defp decode_tab_ref(%{"type" => type, "id" => id}), do: {atomize(type), id}
+
+  defp atomize(value) when is_atom(value), do: value
+  defp atomize(value) when is_binary(value), do: String.to_atom(value)
+
+  defp active_route(nil), do: :dashboard
+  defp active_route({type, _id}), do: type
+end

lib/bds/ui/shell_page.ex

@@ -0,0 +1,62 @@
+defmodule BDS.UI.ShellPage do
+  @moduledoc false
+
+  alias BDS.UI.MenuBar
+  alias BDS.UI.Registry
+  alias BDS.UI.Session
+  alias BDS.UI.Workbench
+
+  def render do
+    bootstrap =
+      %{
+        registry: %{
+          sidebar_views: Registry.sidebar_views(),
+          editor_routes: Registry.editor_routes(),
+          default_sidebar_view: Registry.default_sidebar_view()
+        },
+        menu_groups: MenuBar.default_groups(),
+        session: Session.serialize(Workbench.new(panel_visible: true)),
+        status: %{
+          post_count: 12,
+          media_count: 34,
+          theme_badge: "zinc",
+          ui_language: "en",
+          offline_mode: true,
+          running_task_message: "Building starter shell",
+          running_task_overflow: 1,
+          git_badge_count: 7
+        }
+      }
+
+    [
+      "<!DOCTYPE html>",
+      "<html lang=\"en\">",
+      "<head>",
+      "  <meta charset=\"utf-8\">",
+      "  <meta name=\"viewport\" content=\"width=device-width, initial-scale=1\">",
+      "  <title>bDS Shell</title>",
+      "  <link rel=\"stylesheet\" href=\"./app.css\">",
+      "</head>",
+      "<body>",
+      "  <div id=\"bds-shell-app\">",
+      "    <header data-region=\"title-bar\"></header>",
+      "    <div data-region=\"activity-bar\"></div>",
+      "    <aside data-region=\"sidebar\"></aside>",
+      "    <div data-role=\"resize-handle\" data-target=\"sidebar\"></div>",
+      "    <main data-region=\"content\">",
+      "      <div data-region=\"tab-bar\"></div>",
+      "      <section data-region=\"editor\"></section>",
+      "      <section data-region=\"panel\"></section>",
+      "    </main>",
+      "    <div data-role=\"resize-handle\" data-target=\"assistant\"></div>",
+      "    <aside data-region=\"assistant-sidebar\"></aside>",
+      "    <footer data-region=\"status-bar\"></footer>",
+      "  </div>",
+      "  <script id=\"bds-shell-bootstrap\" type=\"application/json\">#{Jason.encode!(bootstrap)}</script>",
+      "  <script src=\"./app.js\"></script>",
+      "</body>",
+      "</html>"
+    ]
+    |> Enum.join("\n")
+  end
+end

lib/bds/ui/workbench.ex

@@ -0,0 +1,268 @@
+defmodule BDS.UI.Workbench do
+  @moduledoc false
+
+  alias BDS.UI.Registry
+
+  @singleton_tabs MapSet.new([
+                    :settings,
+                    :tags,
+                    :style,
+                    :scripts,
+                    :menu_editor,
+                    :documentation,
+                    :api_documentation,
+                    :metadata_diff,
+                    :site_validation,
+                    :translation_validation,
+                    :find_duplicates
+                  ])
+
+  defstruct sidebar_visible: true,
+            sidebar_width: 280,
+            active_view: :posts,
+            assistant_sidebar_visible: false,
+            assistant_sidebar_width: 360,
+            panel: %{visible: false, active_tab: :tasks},
+            tabs: [],
+            active_tab: nil,
+            editor_route: :dashboard,
+            dirty_tabs: MapSet.new()
+
+  def new(opts \\ []) do
+    %__MODULE__{
+      sidebar_visible: Keyword.get(opts, :sidebar_visible, true),
+      sidebar_width: clamp_sidebar_width(Keyword.get(opts, :sidebar_width, 280)),
+      active_view: normalize_type(Keyword.get(opts, :active_view, :posts)),
+      assistant_sidebar_visible: Keyword.get(opts, :assistant_sidebar_visible, false),
+      assistant_sidebar_width:
+        clamp_assistant_sidebar_width(Keyword.get(opts, :assistant_sidebar_width, 360)),
+      panel: %{
+        visible: Keyword.get(opts, :panel_visible, false),
+        active_tab: Keyword.get(opts, :panel_tab, :tasks)
+      },
+      dirty_tabs: MapSet.new(Keyword.get(opts, :dirty_tabs, []))
+    }
+    |> sync_editor_route()
+    |> normalize_panel()
+  end
+
+  def set_sidebar_width(state, width) when is_integer(width) do
+    %{state | sidebar_width: clamp_sidebar_width(width)}
+  end
+
+  def set_assistant_sidebar_width(state, width) when is_integer(width) do
+    %{state | assistant_sidebar_width: clamp_assistant_sidebar_width(width)}
+  end
+
+  def open_tab(state, type, id, intent) do
+    {tabs, opened_tab} = upsert_tab(state.tabs, normalize_type(type), id, intent)
+
+    state
+    |> Map.put(:tabs, tabs)
+    |> Map.put(:active_tab, tab_ref(opened_tab))
+    |> sync_editor_route()
+    |> normalize_panel()
+  end
+
+  def open_tab_in_background(state, type, id, intent) do
+    current_active = state.active_tab
+    {tabs, _opened_tab} = upsert_tab(state.tabs, normalize_type(type), id, intent)
+
+    state
+    |> Map.put(:tabs, tabs)
+    |> Map.put(:active_tab, current_active)
+    |> sync_editor_route()
+    |> normalize_panel()
+  end
+
+  def close_tab(state, type, id) do
+    type = normalize_type(type)
+    target = {type, id}
+    index = Enum.find_index(state.tabs, &(tab_ref(&1) == target))
+
+    if is_nil(index) do
+      state
+    else
+      tabs = List.delete_at(state.tabs, index)
+
+      next_active =
+        cond do
+          state.active_tab != target -> state.active_tab
+          tabs == [] -> nil
+          index < length(tabs) -> tab_ref(Enum.at(tabs, index))
+          true -> tab_ref(List.last(tabs))
+        end
+
+      state
+      |> Map.put(:tabs, tabs)
+      |> Map.put(:active_tab, next_active)
+      |> sync_editor_route()
+      |> normalize_panel()
+    end
+  end
+
+  def pin_tab(state, type, id) do
+    type = normalize_type(type)
+
+    tabs =
+      Enum.map(state.tabs, fn tab ->
+        if tab_ref(tab) == {type, id}, do: %{tab | is_transient: false}, else: tab
+      end)
+
+    %{state | tabs: tabs}
+  end
+
+  def clear_tabs(state) do
+    %{state | tabs: [], active_tab: nil, editor_route: :dashboard, dirty_tabs: MapSet.new()}
+    |> normalize_panel()
+  end
+
+  def mark_dirty(state, type, id) do
+    if normalize_type(type) == :post do
+      %{state | dirty_tabs: MapSet.put(state.dirty_tabs, {normalize_type(type), id})}
+    else
+      state
+    end
+  end
+
+  def clear_dirty(state, type, id) do
+    %{state | dirty_tabs: MapSet.delete(state.dirty_tabs, {normalize_type(type), id})}
+  end
+
+  def dirty?(state, type, id) do
+    MapSet.member?(state.dirty_tabs, {normalize_type(type), id})
+  end
+
+  def toggle_sidebar(state), do: %{state | sidebar_visible: not state.sidebar_visible}
+
+  def set_panel_visible(state, visible) when is_boolean(visible) do
+    %{state | panel: %{state.panel | visible: visible}}
+  end
+
+  def toggle_panel(state) do
+    set_panel_visible(state, not state.panel.visible)
+  end
+
+  def toggle_assistant_sidebar(state) do
+    %{state | assistant_sidebar_visible: not state.assistant_sidebar_visible}
+  end
+
+  def set_panel_tab(state, tab) when tab in [:tasks, :output, :post_links, :git_log] do
+    %{state | panel: %{state.panel | active_tab: tab}}
+  end
+
+  def click_activity(state, activity_id) do
+    activity_id = normalize_type(activity_id)
+
+    cond do
+      state.active_view == activity_id -> toggle_sidebar(state)
+      state.sidebar_visible -> %{state | active_view: activity_id}
+      true -> %{state | active_view: activity_id, sidebar_visible: true}
+    end
+  end
+
+  def activity_buttons(state, git_badge_count \\ 0) do
+    Registry.sidebar_views()
+    |> Enum.map(fn view ->
+      %{
+        id: view.id,
+        label: view.label,
+        activity_group: view.activity_group,
+        active: state.sidebar_visible and state.active_view == view.id,
+        badge: activity_badge(view.id, git_badge_count)
+      }
+    end)
+  end
+
+  def status_bar(state, opts) do
+    %{
+      left: %{
+        running_task_message: Keyword.get(opts, :running_task_message),
+        running_task_overflow: Keyword.get(opts, :running_task_overflow)
+      },
+      right: %{
+        post_status: post_status(state, Keyword.get(opts, :active_post_status)),
+        post_count: "#{Keyword.get(opts, :post_count, 0)} posts",
+        media_count: "#{Keyword.get(opts, :media_count, 0)} media",
+        token_usage: token_usage(state, Keyword.get(opts, :token_usage)),
+        theme_badge: Keyword.get(opts, :theme_badge, "default"),
+        offline_mode: Keyword.get(opts, :offline_mode, false),
+        ui_language: Keyword.get(opts, :ui_language, "en"),
+        brand: "bDS"
+      }
+    }
+  end
+
+  defp upsert_tab(tabs, type, id, intent) do
+    transient? = transient_tab?(type, intent)
+
+    case Enum.find_index(tabs, &(tab_ref(&1) == {type, id})) do
+      nil ->
+        new_tab = %{type: type, id: id, is_transient: transient?}
+
+        tabs =
+          cond do
+            transient? -> replace_transient_tab(tabs, type, new_tab)
+            true -> tabs ++ [new_tab]
+          end
+
+        {tabs, new_tab}
+
+      index ->
+        existing = Enum.at(tabs, index)
+        updated = if intent == :pin, do: %{existing | is_transient: false}, else: existing
+        {List.replace_at(tabs, index, updated), updated}
+    end
+  end
+
+  defp replace_transient_tab(tabs, type, new_tab) do
+    case Enum.find_index(tabs, &(&1.type == type and &1.is_transient)) do
+      nil -> tabs ++ [new_tab]
+      index -> List.replace_at(tabs, index, new_tab)
+    end
+  end
+
+  defp transient_tab?(type, _intent) when type in [:chat, :import], do: false
+  defp transient_tab?(type, intent) do
+    if MapSet.member?(@singleton_tabs, type), do: false, else: transient_from_intent(intent)
+  end
+
+  defp transient_from_intent(:preview), do: true
+  defp transient_from_intent(_intent), do: false
+
+  defp sync_editor_route(%{active_tab: nil} = state), do: %{state | editor_route: :dashboard}
+  defp sync_editor_route(%{active_tab: {type, _id}} = state), do: %{state | editor_route: type}
+
+  defp normalize_panel(state) do
+    if panel_tab_available?(state.editor_route, state.panel.active_tab) do
+      state
+    else
+      %{state | panel: %{state.panel | active_tab: :tasks}}
+    end
+  end
+
+  defp panel_tab_available?(_route, tab) when tab in [:tasks, :output], do: true
+  defp panel_tab_available?(:post, :post_links), do: true
+  defp panel_tab_available?(route, :git_log) when route in [:post, :media], do: true
+  defp panel_tab_available?(_route, _tab), do: false
+
+  defp activity_badge(:git, count) when is_integer(count) and count > 0 do
+    %{count: count, display: if(count > 99, do: "99+", else: Integer.to_string(count))}
+  end
+
+  defp activity_badge(_id, _count), do: nil
+
+  defp post_status(%{editor_route: :post}, status) when not is_nil(status), do: to_string(status)
+  defp post_status(_state, _status), do: nil
+
+  defp token_usage(%{editor_route: :chat}, usage), do: usage
+  defp token_usage(_state, _usage), do: nil
+
+  defp normalize_type(type) when is_atom(type), do: type
+  defp normalize_type(type) when is_binary(type), do: String.to_atom(type)
+
+  defp tab_ref(tab), do: {tab.type, tab.id}
+
+  defp clamp_sidebar_width(width), do: max(200, min(width, 500))
+  defp clamp_assistant_sidebar_width(width), do: max(280, min(width, 640))
+end