defmodule <%= inspect(@web_module) %>.Parapet.OperatorLive do
@moduledoc false
use <%= inspect(@web_module) %>, :live_view
import Ecto.Query
import <%= inspect(@web_module) %>.Parapet.OperatorComponents
@default_page_size 30
def mount(_params, _session, socket) do
action_items = <%= inspect(@repo_module) %>.all(Parapet.Operator.action_items_query())
journeys = [
%{name: "Login", status: :healthy},
%{name: "Signup", status: :healthy},
%{name: "Checkout", status: :degraded},
%{name: "Webhooks", status: :healthy}
]
{:ok,
socket
|> assign(
action_items: action_items,
journeys: journeys,
selected_incident: nil,
visible_incidents: [],
queue_page: empty_queue_page(),
queue_params: %{"status" => "active"},
queue_refresh_available?: false
)
|> stream_configure(:incidents, dom_id: &incident_dom_id/1)
|> stream(:incidents, [], reset: true)}
end
def handle_params(params, _uri, socket) do
queue_params = queue_params(params)
queue_page = load_queue_page(queue_params)
selected =
if id = params["id"] do
Parapet.Operator.incident_detail(id)
else
nil
end
visible_incidents = Enum.map(queue_page.items, &queue_stream_item/1)
{:noreply,
socket
|> assign(
selected_incident: selected,
visible_incidents: visible_incidents,
queue_page: queue_page,
queue_params: visible_queue_params(queue_params, queue_page),
queue_refresh_available?: false
)
|> stream(:incidents, visible_incidents, reset: true)}
end
def handle_event("queue_refresh", _params, socket) do
{:noreply,
socket
|> assign(:queue_refresh_available?, false)
|> push_patch(to: queue_path(socket, %{"cursor" => nil, "direction" => "next"}))}
end
def handle_event("acknowledge", %{"id" => id}, socket) do
incident = <%= inspect(@repo_module) %>.get!(Parapet.Spine.Incident, id)
payload = %Parapet.Operator.ActionPayload{
actor: "operator_ui",
reason: "Acknowledged via UI",
correlation_id: Ecto.UUID.generate(),
action_type: :acknowledge
}
case Parapet.Operator.acknowledge_incident(incident, payload) do
{:ok, _result} ->
{:noreply,
socket
|> put_flash(:info, "Incident acknowledged successfully")
|> push_patch(to: queue_path(socket, %{"id" => id}))}
{:error, _reason} ->
{:noreply, put_flash(socket, :error, "Failed to acknowledge")}
end
end
def handle_event("resolve", %{"id" => id}, socket) do
incident = <%= inspect(@repo_module) %>.get!(Parapet.Spine.Incident, id)
payload = %Parapet.Operator.ActionPayload{
actor: "operator_ui",
reason: "Resolved via UI",
correlation_id: Ecto.UUID.generate(),
action_type: :resolve
}
case Parapet.Operator.resolve_incident(incident, payload) do
{:ok, _result} ->
{:noreply, push_patch(socket, to: queue_path(socket, %{"id" => id}))}
{:error, _reason} ->
{:noreply, put_flash(socket, :error, "Failed to resolve")}
end
end
def handle_info(:parapet_queue_changed, socket) do
{:noreply, assign(socket, :queue_refresh_available?, true)}
end
def handle_info({:parapet_queue_changed, _payload}, socket) do
{:noreply, assign(socket, :queue_refresh_available?, true)}
end
def render(assigns) do
~H"""
<div class="flex flex-col md:flex-row h-screen bg-gray-50 overflow-hidden">
<div class={"w-full md:w-80 border-r border-gray-200 bg-white flex flex-col flex-shrink-0 #{if @selected_incident, do: "hidden md:flex", else: "flex"}"}>
<div class="p-4 border-b border-gray-200 bg-gray-50">
<.critical_journeys journeys={@journeys} />
</div>
<div class="p-4 border-b border-gray-200 bg-stone-50">
<div class="flex items-start justify-between gap-3">
<div>
<p class="text-xs font-semibold uppercase tracking-[0.16em] text-stone-500">
<%%= queue_scope_label(@queue_params["status"]) %>
</p>
<h2 class="mt-2 text-lg font-semibold text-stone-900">Incident Queue</h2>
<p class="mt-1 text-sm text-stone-600"><%%= queue_window_copy(@queue_page, @visible_incidents) %></p>
</div>
<.link
patch={queue_path(@queue_params, %{"status" => "resolved", "cursor" => nil, "direction" => "next", "id" => nil})}
class="text-sm font-medium text-stone-700 underline decoration-stone-300 underline-offset-4 hover:text-stone-900"
>
History
</.link>
</div>
</div>
<%%= if @queue_refresh_available? do %>
<div class="border-b border-stone-200 bg-stone-100 px-4 py-3">
<p class="text-sm font-medium text-stone-800">New incidents or queue changes are available.</p>
<button
type="button"
phx-click="queue_refresh"
class="mt-3 inline-flex min-h-11 items-center justify-center rounded-md bg-teal-700 px-4 py-2 text-sm font-semibold text-white transition hover:bg-teal-800"
>
Load latest changes
</button>
</div>
<%% end %>
<div class="flex-1 overflow-y-auto border-b border-gray-200">
<.incident_list
incidents={@visible_incidents}
selected={selected_queue_incident(@selected_incident)}
queue_params={@queue_params}
/>
</div>
<div class="flex items-center justify-between gap-3 border-b border-stone-200 bg-stone-50 px-4 py-3">
<.link
patch={queue_page_path(@queue_params, @queue_page.previous_cursor, "previous")}
class={[
"inline-flex min-h-11 items-center justify-center rounded-md border px-3 py-2 text-sm font-semibold transition",
pagination_link_class(@queue_page.has_previous_page?)
]}
>
Previous
</.link>
<p class="text-xs font-medium uppercase tracking-[0.16em] text-stone-500">Operator-paced queue</p>
<.link
patch={queue_page_path(@queue_params, @queue_page.next_cursor, "next")}
class={[
"inline-flex min-h-11 items-center justify-center rounded-md border px-3 py-2 text-sm font-semibold transition",
pagination_link_class(@queue_page.has_next_page?)
]}
>
Next
</.link>
</div>
<div class="p-4 border-b border-gray-200 bg-gray-50">
<h2 class="text-lg font-semibold text-gray-800">Action Items</h2>
</div>
<div class="flex-1 overflow-y-auto bg-gray-50">
<.action_item_list items={@action_items} />
</div>
</div>
<div class={"flex-1 flex flex-col md:flex-row min-w-0 bg-gray-50 #{if @selected_incident, do: "flex", else: "hidden md:flex"}"}>
<div class="md:hidden p-4 border-b border-gray-200 bg-white">
<.link patch={queue_path(@queue_params, %{})} class="text-blue-600 hover:text-blue-800 font-medium">
← Back to Queue
</.link>
</div>
<div class="flex-1 flex flex-col min-w-0 bg-white border-r border-gray-200">
<%%= if @selected_incident do %>
<div class="p-6 border-b border-gray-200">
<.incident_summary detail={@selected_incident} />
</div>
<div class="flex-1 overflow-y-auto p-6">
<.incident_timeline detail={@selected_incident} />
</div>
<%% else %>
<div class="flex-1 flex items-center justify-center text-gray-500">
Select an incident to review details
</div>
<%% end %>
</div>
<%%= if @selected_incident do %>
<div class="w-full md:w-80 bg-gray-50 flex flex-col flex-shrink-0">
<div class="p-4 border-b border-gray-200 bg-white md:bg-transparent">
<h3 class="text-sm font-semibold text-gray-700 uppercase tracking-wider">Actions</h3>
</div>
<div class="p-4 overflow-y-auto">
<.action_rail detail={@selected_incident} />
</div>
</div>
<%% end %>
</div>
</div>
"""
end
defp selected_queue_incident(nil), do: nil
defp selected_queue_incident(%{incident: incident}) do
%{id: incident.id}
end
defp queue_stream_item(item) do
item
|> Map.put(:id, item.incident_id)
|> Map.put_new(:title, item.title || item.incident_id)
end
defp incident_dom_id(%{incident_id: incident_id}), do: "incident-#{incident_id}"
defp incident_dom_id(%{id: incident_id}), do: "incident-#{incident_id}"
defp queue_params(params) do
%{
"page_size" => @default_page_size,
"direction" => Map.get(params, "direction", "next"),
"cursor" => Map.get(params, "cursor"),
"status" => normalized_status(Map.get(params, "status")),
"id" => Map.get(params, "id")
}
end
defp visible_queue_params(queue_params, queue_page) do
queue_params
|> Map.put("cursor", queue_params["cursor"])
|> Map.put("direction", queue_page.direction |> Atom.to_string())
|> Map.put("status", normalized_status(queue_params["status"]))
end
defp normalized_status("resolved"), do: "resolved"
defp normalized_status(_status), do: "active"
defp load_queue_page(%{"status" => "resolved"} = queue_params), do: resolved_history_page(queue_params)
defp load_queue_page(queue_params), do: Parapet.Operator.list_incident_queue(queue_params)
defp queue_scope_label("resolved"), do: "Resolved History"
defp queue_scope_label(_status), do: "Active Only"
defp queue_window_copy(_queue_page, visible_incidents) do
visible_count = Enum.count(visible_incidents)
cond do
visible_count == 0 -> "No incidents in this queue window."
true -> "#{visible_count} incidents visible in this queue window."
end
end
defp empty_queue_page do
%{
items: [],
direction: :next,
next_cursor: nil,
previous_cursor: nil,
has_next_page?: false,
has_previous_page?: false,
page_size: @default_page_size
}
end
defp queue_page_path(queue_params, nil, _direction), do: queue_path(queue_params, %{})
defp queue_page_path(queue_params, cursor, direction) do
queue_path(queue_params, %{"cursor" => cursor, "direction" => direction, "id" => nil})
end
defp queue_path(%{assigns: assigns}, extra_params) do
queue_path(assigns.queue_params, extra_params)
end
defp queue_path(queue_params, extra_params) do
params =
queue_params
|> Map.merge(extra_params)
|> Enum.reject(fn {_key, value} -> is_nil(value) or value == "" or value == "active" end)
case params do
[] -> "/parapet"
_ -> "/parapet?" <> URI.encode_query(params)
end
end
defp pagination_link_class(true),
do: "border-stone-300 bg-white text-stone-900 hover:border-teal-700 hover:text-teal-700"
defp pagination_link_class(false),
do: "pointer-events-none border-stone-200 bg-stone-100 text-stone-400"
defp resolved_history_page(queue_params) do
direction = queue_direction(queue_params)
cursor = decode_queue_cursor(queue_params["cursor"])
incidents =
Parapet.Spine.Incident
|> where([incident], incident.state == "resolved")
|> apply_history_cursor(direction, cursor)
|> apply_history_order(direction)
|> limit(^(Map.get(queue_params, "page_size", @default_page_size) + 1))
|> <%= inspect(@repo_module) %>.all()
{visible_items, has_more?} =
incidents
|> maybe_reverse_history_items(direction)
|> split_queue_page(Map.get(queue_params, "page_size", @default_page_size))
%{
scope: :resolved,
direction: direction,
items: Enum.map(visible_items, &queue_stream_item/1),
has_next_page?: history_has_next_page?(direction, has_more?, visible_items, cursor),
has_previous_page?: history_has_previous_page?(direction, has_more?, visible_items, cursor),
next_cursor: history_next_cursor(direction, visible_items, has_more?, cursor),
previous_cursor: history_previous_cursor(direction, visible_items, has_more?, cursor),
page_size: Map.get(queue_params, "page_size", @default_page_size)
}
end
defp queue_direction(%{"direction" => "previous"}), do: :previous
defp queue_direction(_queue_params), do: :next
defp decode_queue_cursor(nil), do: nil
defp decode_queue_cursor(cursor) when is_binary(cursor) do
with {:ok, decoded} <- Base.url_decode64(cursor, padding: false),
[updated_at_raw, incident_id] <- String.split(decoded, "|", parts: 2),
{:ok, updated_at, 0} <- DateTime.from_iso8601(updated_at_raw) do
%{updated_at: updated_at, id: incident_id}
else
_ -> nil
end
end
defp apply_history_cursor(query, _direction, nil), do: query
defp apply_history_cursor(query, :next, %{updated_at: updated_at, id: incident_id}) do
where(
query,
[incident],
incident.updated_at < ^updated_at or
(incident.updated_at == ^updated_at and incident.id < ^incident_id)
)
end
defp apply_history_cursor(query, :previous, %{updated_at: updated_at, id: incident_id}) do
where(
query,
[incident],
incident.updated_at > ^updated_at or
(incident.updated_at == ^updated_at and incident.id > ^incident_id)
)
end
defp apply_history_order(query, :previous), do: order_by(query, [incident], [asc: incident.updated_at, asc: incident.id])
defp apply_history_order(query, _direction), do: order_by(query, [incident], [desc: incident.updated_at, desc: incident.id])
defp maybe_reverse_history_items(items, :previous), do: Enum.reverse(items)
defp maybe_reverse_history_items(items, _direction), do: items
defp split_queue_page(items, page_size) do
visible_items = Enum.take(items, page_size)
{visible_items, length(items) > page_size}
end
defp history_has_next_page?(:next, has_more?, _items, _cursor), do: has_more?
defp history_has_next_page?(:previous, _has_more?, _items, nil), do: false
defp history_has_next_page?(:previous, _has_more?, items, _cursor), do: items != []
defp history_has_previous_page?(:next, _has_more?, _items, nil), do: false
defp history_has_previous_page?(:next, _has_more?, items, _cursor), do: items != []
defp history_has_previous_page?(:previous, has_more?, _items, _cursor), do: has_more?
defp history_next_cursor(:next, items, true, _cursor), do: encode_queue_cursor(List.last(items))
defp history_next_cursor(:previous, _items, _has_more?, nil), do: nil
defp history_next_cursor(:previous, items, _has_more?, _cursor), do: encode_queue_cursor(List.last(items))
defp history_next_cursor(_direction, _items, _has_more?, _cursor), do: nil
defp history_previous_cursor(:next, _items, _has_more?, nil), do: nil
defp history_previous_cursor(:next, items, _has_more?, _cursor), do: encode_queue_cursor(List.first(items))
defp history_previous_cursor(:previous, items, true, _cursor), do: encode_queue_cursor(List.first(items))
defp history_previous_cursor(_direction, _items, _has_more?, _cursor), do: nil
defp encode_queue_cursor(nil), do: nil
defp encode_queue_cursor(%{updated_at: %DateTime{} = updated_at, id: incident_id}) do
"#{DateTime.to_iso8601(updated_at)}|#{incident_id}"
|> Base.url_encode64(padding: false)
end
end