feat: add total spot count and per-band breakdown to /pskreporter header

lib/microwaveprop_web/live/pskr_spots_live.ex

@@ -18,7 +18,9 @@ defmodule MicrowavepropWeb.PskrSpotsLive do
      assign(socket,
        page_title: "PSK Reporter Spots",
        limit: @limit,
-       spots: spots
+       spots: spots,
+       total_spots: fetch_total_spots(),
+       band_counts: fetch_band_counts()
      )}
   end
 
@@ -29,6 +31,20 @@ defmodule MicrowavepropWeb.PskrSpotsLive do
     |> Repo.all()
   end
 
+  defp fetch_total_spots do
+    Repo.one(from(s in SpotHourly, select: coalesce(sum(s.spot_count), 0)))
+  end
+
+  defp fetch_band_counts do
+    Repo.all(
+      from(s in SpotHourly,
+        group_by: s.band,
+        select: {s.band, sum(s.spot_count)},
+        order_by: [desc: sum(s.spot_count)]
+      )
+    )
+  end
+
   defp fmt_dt(nil), do: "—"
   defp fmt_dt(dt), do: Calendar.strftime(dt, "%Y-%m-%d %H:%M UTC")
 
@@ -47,6 +63,16 @@ defmodule MicrowavepropWeb.PskrSpotsLive do
         <:subtitle>Last {@limit} spot aggregates from the MQTT firehose</:subtitle>
       </.header>
 
+      <div class="flex flex-wrap items-baseline gap-x-6 gap-y-1 text-sm mb-4">
+        <span class="font-semibold">
+          Total spots stored: <span class="font-mono">{Format.number(@total_spots)}</span>
+        </span>
+        <span :for={{band, count} <- @band_counts} class="text-base-content/70">
+          <span class="badge badge-sm mr-1">{band}</span>
+          <span class="font-mono">{Format.number(count)}</span>
+        </span>
+      </div>
+
       <div class="overflow-x-auto">
         <table class="table table-sm table-zebra whitespace-nowrap">
           <thead>

test/microwaveprop_web/live/pskr_spots_live_test.exs

@@ -69,17 +69,27 @@ defmodule MicrowavepropWeb.PskrSpotsLiveTest do
       {:ok, _lv, html} = live(conn, ~p"/pskreporter")
       assert html =~ "No PSK Reporter spots received yet"
     end
+
+    test "shows total spots count of zero when empty", %{conn: conn} do
+      {:ok, _lv, html} = live(conn, ~p"/pskreporter")
+      assert html =~ "Total spots stored:"
+      assert html =~ "0"
+    end
   end
 
   describe "with spots in the database" do
-    test "displays spot grid and count data in table", %{conn: conn} do
-      insert_spot(%{sender_grid: "EM12KL", receiver_grid: "DM43ST", spot_count: 42})
+    test "displays total spots count and per-band counts", %{conn: conn} do
+      insert_spot(%{band: "2m", spot_count: 42})
+      insert_spot(%{band: "70cm", spot_count: 7})
 
       {:ok, _lv, html} = live(conn, ~p"/pskreporter")
 
-      assert html =~ "EM12KL"
-      assert html =~ "DM43ST"
-      assert html =~ "42"
+      assert html =~ "Total spots stored:"
+      # 42 + 7 = 49 total
+      assert html =~ "49"
+      # Band badges show per-band counts
+      assert html =~ "2m"
+      assert html =~ "70cm"
     end
 
     test "displays band as badge", %{conn: conn} do