Beacon power in mW, settings tweaks

- Rename beacons.power_watts to power_mw (migration multiplies existing
  values by 1000); form/list/show all relabeled to "Power (mW)"
- Fix Add-monitor button alignment on /users/settings by rendering the
  label above and putting the input and button in a plain flex row so
  the input wrapper margin no longer offsets the button
- Extend the settings page re-auth window from 10 minutes to 24 hours

lib/microwaveprop/beacons/beacon.ex

@@ -2,7 +2,7 @@ defmodule Microwaveprop.Beacons.Beacon do
   @moduledoc """
   A beacon transmitter. Frequency in MHz, coordinates as lat/lon,
   grid as Maidenhead (auto-computed from lat/lon when not supplied),
-  power in watts, height above ground in meters.
+  power in milliwatts, height above ground in meters.
   """
 
   use Ecto.Schema
@@ -19,22 +19,22 @@ defmodule Microwaveprop.Beacons.Beacon do
     field :grid, :string
     field :lat, :float
     field :lon, :float
-    field :power_watts, :float
+    field :power_mw, :float
     field :height_m, :float
     field :user_id, :binary_id
 
     timestamps(type: :utc_datetime)
   end
 
-  @required_fields [:frequency_mhz, :callsign, :lat, :lon, :power_watts, :height_m]
+  @required_fields [:frequency_mhz, :callsign, :lat, :lon, :power_mw, :height_m]
 
   def changeset(beacon, attrs) do
     beacon
-    |> cast(attrs, [:frequency_mhz, :callsign, :grid, :lat, :lon, :power_watts, :height_m])
+    |> cast(attrs, [:frequency_mhz, :callsign, :grid, :lat, :lon, :power_mw, :height_m])
     |> update_change(:callsign, fn cs -> cs && String.upcase(String.trim(cs)) end)
     |> validate_required(@required_fields)
     |> validate_number(:frequency_mhz, greater_than: 0)
-    |> validate_number(:power_watts, greater_than_or_equal_to: 0)
+    |> validate_number(:power_mw, greater_than_or_equal_to: 0)
     |> validate_number(:height_m, greater_than_or_equal_to: 0)
     |> validate_number(:lat, greater_than_or_equal_to: -90, less_than_or_equal_to: 90)
     |> validate_number(:lon, greater_than_or_equal_to: -180, less_than_or_equal_to: 180)

lib/microwaveprop_web/controllers/user_settings_html/edit.html.heex

@@ -64,18 +64,20 @@
       as={:beacon_monitor}
       action={~p"/users/beacon-monitors"}
       id="create_beacon_monitor"
-      class="flex items-end gap-2"
     >
-      <div class="flex-1">
+      <label for={f[:name].id} class="label mb-1">Monitor name</label>
-        <.input
+      <div class="flex items-center gap-2">
-          field={f[:name]}
+        <input
           type="text"
-          label="Monitor name"
+          name={f[:name].name}
+          id={f[:name].id}
+          value={Phoenix.HTML.Form.normalize_value("text", f[:name].value)}
           placeholder="e.g. Shack Pi"
+          class="input flex-1"
           required
         />
+        <.button variant="primary" phx-disable-with="Adding...">Add monitor</.button>
       </div>
-      <.button variant="primary" phx-disable-with="Adding...">Add monitor</.button>
     </.form>
 
     <%= if @beacon_monitors == [] do %>

lib/microwaveprop_web/live/beacon_live/form.ex

@@ -27,9 +27,9 @@ defmodule MicrowavepropWeb.BeaconLive.Form do
         <.input field={@form[:lat]} type="number" label="Latitude" step="any" required />
         <.input field={@form[:lon]} type="number" label="Longitude" step="any" required />
         <.input
-          field={@form[:power_watts]}
+          field={@form[:power_mw]}
           type="number"
-          label="Power (W)"
+          label="Power (mW)"
           step="any"
           required
         />

lib/microwaveprop_web/live/beacon_live/index.ex

@@ -28,7 +28,7 @@ defmodule MicrowavepropWeb.BeaconLive.Index do
         <:col :let={{_id, beacon}} label="Grid">{beacon.grid}</:col>
         <:col :let={{_id, beacon}} label="Lat">{beacon.lat}</:col>
         <:col :let={{_id, beacon}} label="Lon">{beacon.lon}</:col>
-        <:col :let={{_id, beacon}} label="Power (W)">{beacon.power_watts}</:col>
+        <:col :let={{_id, beacon}} label="Power (mW)">{beacon.power_mw}</:col>
         <:col :let={{_id, beacon}} label="Height AGL (m)">{beacon.height_m}</:col>
         <:action :let={{_id, beacon}}>
           <div class="sr-only">

lib/microwaveprop_web/live/beacon_live/show.ex

@@ -32,7 +32,7 @@ defmodule MicrowavepropWeb.BeaconLive.Show do
         <:item title="Grid">{@beacon.grid}</:item>
         <:item title="Latitude">{@beacon.lat}</:item>
         <:item title="Longitude">{@beacon.lon}</:item>
-        <:item title="Power (W)">{@beacon.power_watts}</:item>
+        <:item title="Power (mW)">{@beacon.power_mw}</:item>
         <:item title="Height above ground (m)">{@beacon.height_m}</:item>
       </.list>
     </Layouts.app>

lib/microwaveprop_web/user_auth.ex

@@ -209,7 +209,7 @@ defmodule MicrowavepropWeb.UserAuth do
   Plug for routes that require sudo mode.
   """
   def require_sudo_mode(conn, _opts) do
-    if Accounts.sudo_mode?(conn.assigns.current_scope.user, -10) do
+    if Accounts.sudo_mode?(conn.assigns.current_scope.user, -60 * 24) do
       conn
     else
       conn

priv/repo/migrations/20260408174251_rename_beacon_power_to_mw.exs

@@ -0,0 +1,13 @@
+defmodule Microwaveprop.Repo.Migrations.RenameBeaconPowerToMw do
+  use Ecto.Migration
+
+  def up do
+    rename table(:beacons), :power_watts, to: :power_mw
+    execute "UPDATE beacons SET power_mw = power_mw * 1000"
+  end
+
+  def down do
+    execute "UPDATE beacons SET power_mw = power_mw / 1000"
+    rename table(:beacons), :power_mw, to: :power_watts
+  end
+end

test/microwaveprop/beacons_test.exs

@@ -13,7 +13,7 @@ defmodule Microwaveprop.BeaconsTest do
     grid: nil,
     lat: nil,
     lon: nil,
-    power_watts: nil,
+    power_mw: nil,
     height_m: nil
   }
 
@@ -45,7 +45,7 @@ defmodule Microwaveprop.BeaconsTest do
       assert beacon.callsign == "W5HN"
       assert beacon.lat == attrs.lat
       assert beacon.lon == attrs.lon
-      assert beacon.power_watts == attrs.power_watts
+      assert beacon.power_mw == attrs.power_mw
       assert beacon.height_m == attrs.height_m
       assert beacon.user_id == user.id
     end
@@ -98,11 +98,11 @@ defmodule Microwaveprop.BeaconsTest do
       user = user_fixture()
       beacon = beacon_fixture(user)
 
-      update_attrs = %{frequency_mhz: 24_192.1, power_watts: 5.0}
+      update_attrs = %{frequency_mhz: 24_192.1, power_mw: 5.0}
 
       assert {:ok, %Beacon{} = beacon} = Beacons.update_beacon(beacon, update_attrs)
       assert beacon.frequency_mhz == 24_192.1
-      assert beacon.power_watts == 5.0
+      assert beacon.power_mw == 5.0
     end
 
     test "with invalid data returns error changeset" do

test/microwaveprop_web/controllers/user_settings_controller_test.exs

@@ -20,7 +20,7 @@ defmodule MicrowavepropWeb.UserSettingsControllerTest do
       assert redirected_to(conn) == ~p"/users/log-in"
     end
 
-    @tag token_authenticated_at: DateTime.add(DateTime.utc_now(:second), -11, :minute)
+    @tag token_authenticated_at: DateTime.add(DateTime.utc_now(:second), -25, :hour)
     test "redirects if user is not in sudo mode", %{conn: conn} do
       conn = get(conn, ~p"/users/settings")
       assert redirected_to(conn) == ~p"/users/log-in"

test/microwaveprop_web/live/beacon_live_test.exs

@@ -84,7 +84,7 @@ defmodule MicrowavepropWeb.BeaconLiveTest do
 
       assert {:ok, _view, html} =
                form_live
-               |> form("#beacon-form", beacon: %{power_watts: 25.0})
+               |> form("#beacon-form", beacon: %{power_mw: 25_000.0})
                |> render_submit()
                |> follow_redirect(conn, ~p"/beacons")
 

test/microwaveprop_web/user_auth_test.exs

@@ -186,7 +186,7 @@ defmodule MicrowavepropWeb.UserAuthTest do
   end
 
   describe "require_sudo_mode/2" do
-    test "allows users that have authenticated in the last 10 minutes", %{conn: conn, user: user} do
+    test "allows users that have authenticated in the last 24 hours", %{conn: conn, user: user} do
       conn =
         conn
         |> fetch_flash()
@@ -198,8 +198,8 @@ defmodule MicrowavepropWeb.UserAuthTest do
     end
 
     test "redirects when authentication is too old", %{conn: conn, user: user} do
-      eleven_minutes_ago = :second |> DateTime.utc_now() |> DateTime.add(-11, :minute)
+      too_long_ago = :second |> DateTime.utc_now() |> DateTime.add(-25, :hour)
-      user = %{user | authenticated_at: eleven_minutes_ago}
+      user = %{user | authenticated_at: too_long_ago}
       user_token = Accounts.generate_user_session_token(user)
       {user, token_inserted_at} = Accounts.get_user_by_session_token(user_token)
       assert DateTime.after?(token_inserted_at, user.authenticated_at)

test/support/fixtures/beacons_fixtures.ex

@@ -11,7 +11,7 @@ defmodule Microwaveprop.BeaconsFixtures do
       callsign: "W5HN",
       lat: 32.897,
       lon: -97.038,
-      power_watts: 10.0,
+      power_mw: 10_000.0,
       height_m: 30.0
     })
   end