aprs.me/lib/aprs_web/live/info_live/show.html.heex

<% {symbol_table_id, symbol_code} = AprsWeb.MapLive.PacketUtils.get_symbol_info(@packet || %{}) %>
<% symbol_table = if symbol_table_id in ["/", "\\", "]"], do: symbol_table_id, else: "/" %>
<% symbol_code = symbol_code || ">" %>
<% symbol_table_num =
  case symbol_table do
    "/" -> 0
    "\\" -> 1
    "]" -> 2
    _ -> 0
  end %>
<% symbol_code_ord =
  symbol_code
  |> String.to_charlist()
  |> List.first()
  |> (fn c -> if is_integer(c), do: c, else: 63 end).() %>
<% symbol_img = "/aprs-symbols/aprs-symbols-24-#{symbol_table_num}@2x.png" %>
<% symbol_index = symbol_code_ord - 33 %>

<div class="max-w-3xl mx-auto mt-10 p-8 bg-white rounded-xl shadow-lg">
  <h1 class="text-3xl font-bold mb-2 flex items-center gap-2">
    APRS station <span class="text-blue-700">{@callsign}</span>
    <%= if @packet do %>
      <% {symbol_table_id, symbol_code} = AprsWeb.MapLive.PacketUtils.get_symbol_info(@packet) %>
      <% symbol_table = if symbol_table_id in ["/", "\\", "]"], do: symbol_table_id, else: "/" %>
      <% symbol_code = symbol_code || ">" %>
      <% symbol_table_num =
        case symbol_table do
          "/" -> 0
          "\\" -> 1
          "]" -> 2
          _ -> 0
        end %>
      <% symbol_code_ord =
        symbol_code
        |> String.to_charlist()
        |> List.first()
        |> (fn c -> if is_integer(c), do: c, else: 63 end).() %>
      <% symbol_img = "/aprs-symbols/aprs-symbols-24-#{symbol_table_num}@2x.png" %>
      <% symbol_index = symbol_code_ord - 33 %>
      <img
        src={symbol_img}
        style={"object-fit: none; object-position: -#{symbol_index * 48}px 0; width: 48px; height: 48px; transform: scale(0.5); transform-origin: top left; display: inline-block; vertical-align: middle; margin-bottom: -6px; image-rendering: pixelated;"}
        alt="APRS symbol"
      />
    <% end %>
    <.link navigate={~p"/packets/#{@callsign}"} class="ml-2 text-sm text-blue-600 hover:underline">View packets</.link>
  </h1>
  <%= if @packet do %>
    <div class="text-sm text-gray-500 mb-6">
      {@packet.comment}
    </div>
    <div class="grid grid-cols-1 md:grid-cols-2 gap-6 mb-8">
      <div>
        <div class="mb-2">
          <span class="font-semibold">Location:</span> {@packet.lat}, {@packet.lon}
        </div>
        <div class="mb-2">
          <span class="font-semibold">Last position:</span> {AprsWeb.MapLive.PacketUtils.get_timestamp(
            @packet
          )}
        </div>
        <div class="mb-2"><span class="font-semibold">Altitude:</span> {@packet.altitude} ft</div>
        <div class="mb-2"><span class="font-semibold">Course:</span> {@packet.course}°</div>
        <div class="mb-2"><span class="font-semibold">Speed:</span> {@packet.speed} MPH</div>
      </div>
      <div>
        <div class="mb-2">
          <span class="font-semibold">Device:</span> {@packet.manufacturer} {@packet.equipment_type}
        </div>
        <div class="mb-2"><span class="font-semibold">Path:</span> {@packet.path}</div>
        <div class="mb-2"><span class="font-semibold">Raw:</span> {@packet.raw_packet}</div>
      </div>
    </div>
    <h2 class="text-xl font-semibold mt-8 mb-2">Stations near current position</h2>
    <div class="overflow-x-auto">
      <table class="min-w-full text-sm border rounded-lg">
        <thead>
          <tr class="bg-gray-100">
            <th class="px-4 py-2 text-left">Callsign</th>
            <th class="px-4 py-2 text-left">Distance</th>
            <th class="px-4 py-2 text-left">Last heard</th>
          </tr>
        </thead>
        <tbody>
          <%= for neighbor <- @neighbors do %>
            <tr class="border-t">
              <td class="px-4 py-2 font-mono text-blue-700 flex items-center gap-2">
                <.link navigate={~p"/info/#{neighbor.callsign}"} class="hover:underline">
                  {neighbor.callsign}
                </.link>
                <%= if neighbor.packet do %>
                  <% {symbol_table_id, symbol_code} =
                    AprsWeb.MapLive.PacketUtils.get_symbol_info(neighbor.packet) %>
                  <% symbol_table =
                    if symbol_table_id in ["/", "\\", "]"], do: symbol_table_id, else: "/" %>
                  <% symbol_code = symbol_code || ">" %>
                  <% symbol_table_num =
                    case symbol_table do
                      "/" -> 0
                      "\\" -> 1
                      "]" -> 2
                      _ -> 0
                    end %>
                  <% symbol_code_ord =
                    symbol_code
                    |> String.to_charlist()
                    |> List.first()
                    |> (fn c -> if is_integer(c), do: c, else: 63 end).() %>
                  <% symbol_img = "/aprs-symbols/aprs-symbols-24-#{symbol_table_num}@2x.png" %>
                  <% symbol_index = symbol_code_ord - 33 %>
                  <img
                    src={symbol_img}
                    style={"object-fit: none; object-position: -#{symbol_index * 48}px 0; width: 48px; height: 48px; transform: scale(0.5); transform-origin: top left; display: inline-block; vertical-align: middle; margin-bottom: -6px; image-rendering: pixelated;"}
                    alt="APRS symbol"
                  />
                <% end %>
              </td>
              <td class="px-4 py-2">{neighbor.distance}</td>
              <td class="px-4 py-2">{neighbor.last_heard}</td>
            </tr>
          <% end %>
        </tbody>
      </table>
    </div>
  <% else %>
    <div class="text-gray-600">No recent packet data available for this callsign.</div>
  <% end %>
</div>