Auto-fetch solar index data on contact page when missing

- SolarIndexWorker accepts date arg for specific date fetch
- Contact show page enqueues solar fetch when data missing
- PubSub broadcast on solar data arrival, live-updates page
- Spinner shown while fetching

lib/microwaveprop/workers/solar_index_worker.ex

@@ -1,11 +1,34 @@
 defmodule Microwaveprop.Workers.SolarIndexWorker do
   @moduledoc false
-  use Oban.Worker, queue: :solar, max_attempts: 3
+  use Oban.Worker, queue: :solar, max_attempts: 3, unique: [period: 3600]
 
   alias Microwaveprop.Weather
   alias Microwaveprop.Weather.SolarClient
 
   @impl Oban.Worker
+  def perform(%Oban.Job{args: %{"date" => date_str}}) do
+    {:ok, target_date} = Date.from_iso8601(date_str)
+
+    case SolarClient.fetch_solar_indices() do
+      {:ok, all_records} ->
+        matched = Enum.filter(all_records, fn r -> r.date == target_date end)
+        Enum.each(matched, &Weather.upsert_solar_index/1)
+
+        if matched != [] do
+          Phoenix.PubSub.broadcast(
+            Microwaveprop.PubSub,
+            "contact_enrichment:solar",
+            {:solar_ready, date_str}
+          )
+        end
+
+        :ok
+
+      {:error, reason} ->
+        {:error, reason}
+    end
+  end
+
   def perform(%Oban.Job{}) do
     since_date = Date.add(Date.utc_today(), -7)
 

lib/microwaveprop_web/live/contact_live/show.ex

@@ -12,6 +12,7 @@ defmodule MicrowavepropWeb.ContactLive.Show do
   alias Microwaveprop.Weather.HrrrClient
   alias Microwaveprop.Workers.ContactWeatherEnqueueWorker
   alias Microwaveprop.Workers.HrrrFetchWorker
+  alias Microwaveprop.Workers.SolarIndexWorker
   alias Microwaveprop.Workers.TerrainProfileWorker
 
   require Logger
@@ -26,10 +27,11 @@ defmodule MicrowavepropWeb.ContactLive.Show do
       Phoenix.PubSub.subscribe(Microwaveprop.PubSub, "contact_enrichment:#{contact.id}")
       Phoenix.PubSub.subscribe(Microwaveprop.PubSub, "contact_enrichment:hrrr")
       Phoenix.PubSub.subscribe(Microwaveprop.PubSub, "contact_enrichment:weather")
+      Phoenix.PubSub.subscribe(Microwaveprop.PubSub, "contact_enrichment:solar")
     end
 
     weather = load_weather(contact)
-    solar = load_solar(contact)
+    solar = maybe_enqueue_solar(contact)
     hrrr_path = Weather.hrrr_profiles_for_path(contact)
     hrrr = List.first(hrrr_path)
     {hrrr, contact, hrrr_jobs_ahead} = maybe_enqueue_hrrr(hrrr, contact)
@@ -182,6 +184,11 @@ defmodule MicrowavepropWeb.ContactLive.Show do
      )}
   end
 
+  def handle_info({:solar_ready, _date}, socket) do
+    solar = load_solar(socket.assigns.contact)
+    {:noreply, assign(socket, solar: solar)}
+  end
+
   defp maybe_enqueue_weather(weather, contact) do
     has_data = weather.surface_observations != [] or weather.soundings != []
 
@@ -353,6 +360,18 @@ defmodule MicrowavepropWeb.ContactLive.Show do
     |> Weather.get_solar_index()
   end
 
+  defp maybe_enqueue_solar(contact) do
+    solar = load_solar(contact)
+
+    if solar do
+      solar
+    else
+      date = DateTime.to_date(contact.qso_timestamp)
+      Oban.insert(SolarIndexWorker.new(%{"date" => Date.to_iso8601(date)}))
+      nil
+    end
+  end
+
   @impl true
   def render(assigns) do
     ~H"""
@@ -665,7 +684,12 @@ defmodule MicrowavepropWeb.ContactLive.Show do
           <div><span class="font-semibold">Kp:</span> {format_kp(@solar.kp_values)}</div>
         </div>
       <% else %>
-        <p class="text-sm text-base-content/50 italic">No solar data available for this date.</p>
+        <div class="text-sm text-base-content/50 italic">
+          <span class="flex items-center gap-2">
+            <span class="loading loading-spinner loading-sm"></span>
+            Fetching solar index data...
+          </span>
+        </div>
       <% end %>
 
       <div class="divider" />