towerops/lib/towerops_web/live/device_live/components/wireless_tab.ex
Graham McIntire c4e301a84c fix: address code review findings - memory leaks and redundant queries (#192)
Fixed 5 critical issues from code review:

1. **GlobalSearchTrigger hook listener leak**
   - Added destroyed() callback to remove click listener
   - Prevents memory leak on LiveView unmount

2. **NetworkMap/WeathermapViewer hook listener leaks**
   - Store zoom/fit button handlers as properties
   - Remove DOM event listeners in destroyed() callback
   - Fixes leak on every LiveView remount

3. **SitesMap uses undocumented window.liveSocket.execJS**
   - Changed to proper LiveView pattern using pushEvent
   - Attach listener via Leaflet's popupopen event

4. **handle_info(:refresh_data) double DB fetch**
   - Removed redundant Devices.get_device call
   - Reuse device from assign_base_data

5. **Redundant DB queries in DeviceLive.Show overview**
   - Changed load_sensor_chart_data to accept snmp_device
   - Changed load_overall_traffic_chart_data to accept snmp_device
   - Eliminated 4 redundant Snmp.get_device_with_associations calls

Also removed unused functions:
- load_equipment_data/2
- reload_active_tab_data/1
- assign_subscriber_impact/1

Note: DeviceLive.Show module size (2252 lines) is acknowledged but
deferred as it requires larger architectural refactoring.

Reviewed-on: graham/towerops-web#192
2026-03-27 16:34:42 -05:00

195 lines
8.3 KiB
Elixir

defmodule ToweropsWeb.DeviceLive.Components.WirelessTab do
@moduledoc """
LiveComponent for the device wireless clients tab.
Displays wireless clients connected to the device with optional
subscriber matching from Gaiia integration.
"""
use ToweropsWeb, :live_component
alias ToweropsWeb.DeviceLive.Helpers.DataLoaders
@impl true
def update(assigns, socket) do
{:ok,
socket
|> assign(assigns)
|> load_wireless_data()}
end
defp load_wireless_data(socket) do
device_id = socket.assigns.device.id
wireless_data = DataLoaders.load_wireless_data(device_id)
socket
|> assign(:wireless_clients, wireless_data.wireless_clients)
|> assign(:wireless_client_subscribers, wireless_data.wireless_client_subscribers)
|> assign(:wireless_client_count, wireless_data.wireless_client_count)
|> assign(:wireless_matched_count, wireless_data.wireless_matched_count)
|> assign(:wireless_last_updated, wireless_data.wireless_last_updated)
|> assign(:wireless_clients_available, wireless_data.wireless_clients_available)
end
@impl true
def render(assigns) do
~H"""
<div id="wireless-tab">
<%= if @wireless_clients && length(@wireless_clients) > 0 do %>
<div class="bg-white dark:bg-gray-800/50 rounded-lg border border-gray-200 dark:border-white/10">
<div class="px-4 py-3 border-b border-gray-200 dark:border-white/10 flex items-center justify-between">
<div>
<h3 class="text-sm font-semibold text-gray-900 dark:text-white">
{t("Connected Wireless Clients")}
</h3>
<p class="text-xs text-gray-500 dark:text-gray-400 mt-0.5">
{length(@wireless_clients)} clients — {@wireless_matched_count} subscribers matched
<%= if @wireless_last_updated do %>
· Last updated {format_relative_time(@wireless_last_updated)}
<% end %>
</p>
</div>
</div>
<div class="overflow-x-auto">
<table class="min-w-full divide-y divide-gray-200 dark:divide-white/10">
<thead class="bg-gray-50 dark:bg-gray-800/75">
<tr class="text-xs text-gray-600 dark:text-gray-400">
<th class="px-3 py-2 text-left font-medium">MAC Address</th>
<th class="px-3 py-2 text-left font-medium">IP Address</th>
<th class="px-3 py-2 text-left font-medium">Subscriber</th>
<th class="px-3 py-2 text-left font-medium">Signal</th>
<th class="px-3 py-2 text-left font-medium">SNR</th>
<th class="px-3 py-2 text-right font-medium">Distance</th>
<th class="px-3 py-2 text-right font-medium">TX Rate</th>
<th class="px-3 py-2 text-right font-medium">RX Rate</th>
<th class="px-3 py-2 text-right font-medium">Uptime</th>
</tr>
</thead>
<tbody class="divide-y divide-gray-200 dark:divide-white/10">
<%= for client <- @wireless_clients do %>
<% subscriber_link =
Map.get(@wireless_client_subscribers, String.downcase(client.mac_address)) %>
<tr class="text-sm hover:bg-gray-50 dark:hover:bg-gray-800 transition-colors">
<td class="px-3 py-2 font-mono text-xs">
<span
class="cursor-pointer group/mac text-gray-900 dark:text-white"
phx-click={JS.dispatch("phx:copy", detail: %{text: client.mac_address})}
title={t("Click to copy")}
>
{client.mac_address}
<.icon
name="hero-clipboard-document"
class="h-3 w-3 inline ml-0.5 opacity-0 group-hover/mac:opacity-100 transition-opacity text-gray-400"
/>
</span>
</td>
<td class="px-3 py-2 font-mono text-xs text-gray-600 dark:text-gray-400">
<%= if client.ip_address do %>
<span
class="cursor-pointer group/ip"
phx-click={JS.dispatch("phx:copy", detail: %{text: client.ip_address})}
title={t("Click to copy")}
>
{client.ip_address}
<.icon
name="hero-clipboard-document"
class="h-3 w-3 inline ml-0.5 opacity-0 group-hover/ip:opacity-100 transition-opacity text-gray-400"
/>
</span>
<% else %>
<span class="text-gray-400">—</span>
<% end %>
</td>
<td class="px-3 py-2 text-xs">
<%= if subscriber_link && subscriber_link.gaiia_account do %>
<span class="text-gray-900 dark:text-white font-medium">
{subscriber_link.gaiia_account.account_name}
</span>
<% else %>
<span class="text-gray-400">—</span>
<% end %>
</td>
<td class="px-3 py-2 text-xs">
<%= if client.signal_strength do %>
<.signal_badge value={client.signal_strength} />
<% else %>
<span class="text-gray-400">—</span>
<% end %>
</td>
<td class="px-3 py-2 text-xs">
<%= if client.snr do %>
<.snr_badge value={client.snr} />
<% else %>
<span class="text-gray-400">—</span>
<% end %>
</td>
<td class="px-3 py-2 text-right font-mono text-xs text-gray-900 dark:text-white">
<%= if client.distance do %>
{client.distance}m
<% else %>
<span class="text-gray-400">—</span>
<% end %>
</td>
<td class="px-3 py-2 text-right font-mono text-xs text-gray-900 dark:text-white">
{format_rate(client.tx_rate)}
</td>
<td class="px-3 py-2 text-right font-mono text-xs text-gray-900 dark:text-white">
{format_rate(client.rx_rate)}
</td>
<td class="px-3 py-2 text-right font-mono text-xs text-gray-600 dark:text-gray-400">
<%= if client.uptime_seconds do %>
{format_uptime(client.uptime_seconds * 100)}
<% else %>
<span class="text-gray-400">—</span>
<% end %>
</td>
</tr>
<% end %>
</tbody>
</table>
</div>
</div>
<% else %>
<div class="text-center py-12">
<.icon
name="hero-signal"
class="mx-auto h-12 w-12 text-gray-400 dark:text-gray-600"
/>
<h3 class="mt-2 text-sm font-medium text-gray-900 dark:text-white">
{t("No wireless clients")}
</h3>
<p class="mt-1 text-sm text-gray-500 dark:text-gray-400">
{t("No clients are currently connected to this access point.")}
</p>
</div>
<% end %>
</div>
"""
end
# Helper functions
defp format_relative_time(datetime) do
ToweropsWeb.TimeHelpers.format_time_ago(datetime)
end
defp format_rate(nil), do: ""
defp format_rate(kbps) when is_integer(kbps) do
mbps = kbps / 1000
"#{Float.round(mbps, 1)} Mbps"
end
defp format_uptime(timeticks) when is_integer(timeticks) do
seconds = div(timeticks, 100)
hours = div(seconds, 3600)
remainder = rem(seconds, 3600)
minutes = div(remainder, 60)
cond do
hours > 0 -> "#{hours}h #{minutes}m"
minutes > 0 -> "#{minutes}m"
true -> "<1m"
end
end
defp format_uptime(_), do: ""
end