livebook/lib/livebook_web/live/app_session_live.ex
2024-06-21 14:06:18 +02:00

523 lines
16 KiB
Elixir

defmodule LivebookWeb.AppSessionLive do
use LivebookWeb, :live_view
import LivebookWeb.AppComponents
alias Livebook.Session
alias Livebook.Notebook
alias Livebook.Notebook.Cell
@impl true
def mount(%{"slug" => slug, "id" => session_id}, _session, socket)
when socket.assigns.app_authenticated? do
{:ok, app} = Livebook.Apps.fetch_app(slug)
app_session = Enum.find(app.sessions, &(&1.id == session_id))
if app_session && app_session.app_status.lifecycle == :active do
%{pid: session_pid} = app_session
session = Session.get_by_pid(session_pid)
{data, client_id} =
if connected?(socket) do
{data, client_id} =
Session.register_client(session_pid, self(), socket.assigns.current_user)
Session.subscribe(session_id)
{data, client_id}
else
data = Session.get_data(session_pid)
{data, nil}
end
{:ok,
socket
|> assign(
slug: slug,
session: session,
page_title: get_page_title(data.notebook.name),
client_id: client_id,
data_view: data_to_view(data)
)
|> assign_private(data: data)
|> prune_outputs()}
else
{:ok,
assign(socket,
nonexistent?: true,
slug: slug,
page_title: get_page_title(app.notebook_name)
)}
end
end
def mount(%{"slug" => slug} = params, _session, socket) do
if connected?(socket) do
to =
if id = params["id"] do
~p"/apps/#{slug}/authenticate?id=#{id}"
else
~p"/apps/#{slug}/authenticate"
end
{:ok, push_navigate(socket, to: to)}
else
{:ok, socket}
end
end
# Puts the given assigns in `socket.private`,
# to ensure they are not used for rendering.
defp assign_private(socket, assigns) do
Enum.reduce(assigns, socket, fn {key, value}, socket ->
put_in(socket.private[key], value)
end)
end
@impl true
def render(%{nonexistent?: true} = assigns) when assigns.app_authenticated? do
~H"""
<div class="h-screen flex items-center justify-center">
<div class="flex flex-col space-y-4 items-center">
<a href={~p"/"}>
<img src={~p"/images/logo.png"} height="128" width="128" alt="livebook" />
</a>
<div class="text-2xl text-gray-800">
This app session does not exist
</div>
<div class="max-w-2xl text-center text-gray-700">
<span>Visit the</span>
<.link class="border-b border-gray-700 hover:border-none" navigate={~p"/apps/#{@slug}"}>app page</.link>.
</div>
</div>
</div>
"""
end
def render(assigns) when assigns.app_authenticated? do
~H"""
<div class="h-full relative overflow-y-auto px-4 md:px-20" data-el-notebook>
<div class="w-full max-w-screen-lg py-4 mx-auto" data-el-notebook-content>
<div class="absolute md:fixed right-4 md:left-4 md:right-auto top-3">
<.menu id="app-menu" position={:bottom_right} md_position={:bottom_left}>
<:toggle>
<button class="flex items-center text-gray-900">
<img src={~p"/images/logo.png"} height="40" width="40" alt="logo livebook" />
<.remix_icon icon="arrow-down-s-line" />
</button>
</:toggle>
<.menu_item :if={@livebook_authenticated?}>
<.link navigate={~p"/"} role="menuitem">
<.remix_icon icon="home-6-line" />
<span>Home</span>
</.link>
</.menu_item>
<.menu_item>
<.link navigate={~p"/apps"} role="menuitem">
<.remix_icon icon="layout-grid-fill" />
<span>Apps</span>
</.link>
</.menu_item>
<.menu_item :if={@data_view.multi_session}>
<.link navigate={~p"/apps/#{@data_view.slug}"} role="menuitem">
<.remix_icon icon="play-list-add-line" />
<span>Sessions</span>
</.link>
</.menu_item>
<.menu_item :if={@data_view.show_source}>
<.link
patch={~p"/apps/#{@data_view.slug}/sessions/#{@session.id}/source"}
role="menuitem"
>
<.remix_icon icon="code-line" />
<span>View source</span>
</.link>
</.menu_item>
<.menu_item :if={@livebook_authenticated?}>
<.link patch={~p"/sessions/#{@session.id}"} role="menuitem">
<.remix_icon icon="terminal-line" />
<span>Debug</span>
</.link>
</.menu_item>
</.menu>
</div>
<div data-el-js-view-iframes phx-update="ignore" id="js-view-iframes"></div>
<div class="flex items-center pb-4 mb-2 space-x-4 border-b border-gray-200 pr-20 md:pr-0">
<h1 class="text-3xl font-semibold text-gray-800">
<%= @data_view.notebook_name %>
</h1>
</div>
<div class="pt-4 flex flex-col gap-6">
<.live_component
:for={cell_view <- @data_view.cell_views}
module={LivebookWeb.AppSessionLive.CellOutputsComponent}
id={"outputs-#{cell_view.id}"}
cell_view={cell_view}
session={@session}
client_id={@client_id}
/>
<%= if @data_view.app_status.execution == :error do %>
<div class={[
"flex justify-between items-center px-4 py-2 border-l-4 shadow-custom-1",
"text-red-400 border-red-400"
]}>
<div>
Something went wrong
</div>
<div class="flex items-center gap-6">
<span class="tooltip top" data-tooltip="Debug">
<.link
:if={@livebook_authenticated?}
navigate={~p"/sessions/#{@session.id}" <> "#cell-#{@data_view.errored_cell_id}"}
>
<.remix_icon icon="terminal-line" />
</.link>
</span>
<button
class="px-5 py-2 font-medium text-sm inline-flex rounded-lg border whitespace-nowrap items-center justify-center gap-1 border-red-400 text-red-400 hover:bg-red-50 focus:bg-red-50"
phx-click="queue_errored_cells_evaluation"
>
<.remix_icon icon="play-circle-fill" />
<span>Retry</span>
</button>
</div>
</div>
<% end %>
</div>
<div style="height: 80vh"></div>
</div>
<div class="fixed right-3 bottom-4 flex flex-col gap-2 items-center text-gray-600 w-10">
<span
:if={
@data_view.app_status.execution == :executed and
@data_view.any_stale?
}
class="tooltip left"
data-tooltip={
~S'''
Some inputs have changed.
Click this button to process with latest values.
'''
}
>
<.icon_button phx-click="queue_full_evaluation">
<.remix_icon icon="play-circle-fill" class="text-3xl leading-none" />
</.icon_button>
</span>
<.app_status_circle status={@data_view.app_status} />
</div>
</div>
<.modal
:if={@live_action == :source and @data_view.show_source}
id="source-modal"
show
width={:big}
patch={~p"/apps/#{@data_view.slug}/sessions/#{@session.id}"}
>
<.live_component
module={LivebookWeb.AppSessionLive.SourceComponent}
id="source"
session={@session}
/>
</.modal>
"""
end
def render(assigns), do: auth_placeholder(assigns)
attr :status, :map, required: true
defp app_status_circle(%{status: %{lifecycle: :shutting_down}} = assigns) do
~H"""
<.app_status_indicator text="Shutting down" variant={:inactive} icon="stop-line" />
"""
end
defp app_status_circle(%{status: %{lifecycle: :deactivated}} = assigns) do
~H"""
<.app_status_indicator text="Deactivated" variant={:inactive} icon="stop-line" />
"""
end
defp app_status_circle(%{status: %{execution: :executing}} = assigns) do
~H"""
<.app_status_indicator text="Executing" variant={:progressing} icon="loader-3-line" spinning />
"""
end
defp app_status_circle(%{status: %{execution: :executed}} = assigns) do
~H"""
<.app_status_indicator text="Executed" variant={:success} icon="check-line" />
"""
end
defp app_status_circle(%{status: %{execution: :error}} = assigns) do
~H"""
<.app_status_indicator text="Error" variant={:error} icon="close-line" />
"""
end
defp app_status_circle(%{status: %{execution: :interrupted}} = assigns) do
~H"""
<.app_status_indicator text="Interrupted" variant={:waiting} icon="pause-line" />
"""
end
attr :text, :string, required: true
attr :variant, :atom, required: true
attr :icon, :string, required: true
attr :spinning, :boolean, default: false
defp app_status_indicator(assigns) do
~H"""
<span class="tooltip left" data-tooltip={@text}>
<span class={[
status_circle_class(@variant),
"opacity-75",
"w-6 h-6 rounded-full flex items-center justify-center",
@spinning && "animate-spin"
]}>
<.remix_icon icon={@icon} class="text-white font-bold" />
</span>
</span>
"""
end
defp get_page_title(notebook_name) do
"Livebook - #{notebook_name}"
end
@impl true
def handle_params(_params, _url, socket), do: {:noreply, socket}
@impl true
def handle_event("queue_interrupted_cell_evaluation", %{"cell_id" => cell_id}, socket) do
data = socket.private.data
with {:ok, cell, _section} <- Notebook.fetch_cell_and_section(data.notebook, cell_id),
true <- data.cell_infos[cell.id].eval.interrupted do
Session.queue_full_evaluation(socket.assigns.session.pid, [cell_id])
end
{:noreply, socket}
end
def handle_event("queue_errored_cells_evaluation", %{}, socket) do
data = socket.private.data
errored_cell_ids =
for {cell_id, %{eval: eval_info}} <- data.cell_infos, eval_info.errored, do: cell_id
Session.queue_full_evaluation(socket.assigns.session.pid, errored_cell_ids)
{:noreply, socket}
end
def handle_event("queue_full_evaluation", %{}, socket) do
Session.queue_full_evaluation(socket.assigns.session.pid, [])
{:noreply, socket}
end
@impl true
def handle_call({:get_input_value, input_id}, _from, socket) do
reply =
case socket.private.data.input_infos do
%{^input_id => %{value: value}} -> {:ok, socket.assigns.session.id, value}
%{} -> :error
end
{:reply, reply, socket}
end
@impl true
def handle_info({:operation, operation}, socket) do
{:noreply, handle_operation(socket, operation)}
end
def handle_info({:set_input_values, values, local}, socket) do
if local do
socket =
Enum.reduce(values, socket, fn {input_id, value}, socket ->
operation = {:set_input_value, socket.assigns.client_id, input_id, value}
handle_operation(socket, operation)
end)
{:noreply, socket}
else
for {input_id, value} <- values do
Session.set_input_value(socket.assigns.session.pid, input_id, value)
end
{:noreply, socket}
end
end
def handle_info(:session_closed, socket) do
{:noreply, redirect_on_closed(socket)}
end
def handle_info(_message, socket), do: {:noreply, socket}
defp handle_operation(socket, operation) do
case Session.Data.apply_operation(socket.private.data, operation) do
{:ok, data, _actions} ->
socket
|> assign_private(data: data)
|> assign(
data_view:
update_data_view(socket.assigns.data_view, socket.private.data, data, operation)
)
|> after_operation(socket, operation)
:error ->
socket
end
end
defp after_operation(
socket,
_prev_socket,
{:add_cell_evaluation_output, _client_id, _cell_id, _output}
) do
prune_outputs(socket)
end
defp after_operation(
socket,
_prev_socket,
{:add_cell_evaluation_response, _client_id, _cell_id, _output, _metadata}
) do
prune_outputs(socket)
end
defp after_operation(socket, _prev_socket, {:app_deactivate, _client_id}) do
redirect_on_closed(socket)
end
defp after_operation(socket, _prev_socket, {:app_shutdown, _client_id}) do
put_flash(
socket,
:info,
"A new version has been deployed, this session will close once everybody leaves"
)
end
defp after_operation(socket, _prev_socket, _operation), do: socket
defp redirect_on_closed(socket) do
socket
|> put_flash(:info, "Session has been closed")
|> push_navigate(to: ~p"/")
end
defp update_data_view(data_view, prev_data, data, operation) do
case operation do
# See LivebookWeb.SessionLive for more details
{:add_cell_evaluation_output, _client_id, cell_id, output} ->
case LivebookWeb.SessionLive.send_output_update(prev_data, data, cell_id, output) do
:ok -> data_view
:continue -> data_to_view(data)
end
_ ->
data_to_view(data)
end
end
defp prune_outputs(%{private: %{data: data}} = socket) do
assign_private(
socket,
data: update_in(data.notebook, &Notebook.prune_cell_outputs/1)
)
end
defp data_to_view(data) do
changed_input_ids = Session.Data.changed_input_ids(data)
%{
notebook_name: data.notebook.name,
cell_views:
for {cell, _section} <- Notebook.evaluable_cells_with_section(data.notebook) do
%{
id: cell.id,
input_views: input_views_for_cell(cell, data, changed_input_ids),
outputs: filter_outputs(cell.outputs, data.notebook.app_settings.output_type),
outputs_batch_number: data.cell_infos[cell.id].eval.outputs_batch_number
}
end,
app_status: data.app_data.status,
show_source: data.notebook.app_settings.show_source,
slug: data.notebook.app_settings.slug,
multi_session: data.notebook.app_settings.multi_session,
errored_cell_id: errored_cell_id(data),
any_stale?: any_stale?(data)
}
end
defp errored_cell_id(data) do
data.notebook
|> Notebook.evaluable_cells_with_section()
|> Enum.find_value(fn {cell, _section} ->
data.cell_infos[cell.id].eval.errored && cell.id
end)
end
defp any_stale?(data) do
Enum.any?(data.cell_infos, &match?({_, %{eval: %{validity: :stale}}}, &1))
end
defp input_views_for_cell(cell, data, changed_input_ids) do
input_ids =
for output <- cell.outputs,
input <- Cell.find_inputs_in_output(output),
do: input.id
data.input_infos
|> Map.take(input_ids)
|> Map.new(fn {input_id, %{value: value}} ->
{input_id, %{value: value, changed: MapSet.member?(changed_input_ids, input_id)}}
end)
end
defp filter_outputs(outputs, :all), do: outputs
defp filter_outputs(outputs, :rich), do: rich_outputs(outputs)
defp rich_outputs(outputs) do
for output <- outputs, output = filter_output(output), do: output
end
defp filter_output({idx, output})
when output.type in [:plain_text, :markdown, :image, :js, :control, :input],
do: {idx, output}
defp filter_output({idx, %{type: :tabs} = output}) do
outputs_with_labels =
for {output, label} <- Enum.zip(output.outputs, output.labels),
output = filter_output(output),
do: {output, label}
{outputs, labels} = Enum.unzip(outputs_with_labels)
{idx, %{output | outputs: outputs, labels: labels}}
end
defp filter_output({idx, %{type: :grid} = output}) do
outputs = rich_outputs(output.outputs)
if outputs != [] do
{idx, %{output | outputs: outputs}}
end
end
defp filter_output({idx, %{type: :frame} = output}) do
outputs = rich_outputs(output.outputs)
{idx, %{output | outputs: outputs}}
end
defp filter_output({idx, %{type: :error, context: {:interrupt, _, _}} = output}),
do: {idx, output}
defp filter_output(_output), do: nil
end