Minecraft-Phantom-Panel/Server/Phantom.Server.Web/Pages/Agents.razor

@page "/agents"
@using Phantom.Server.Services.Agents
@using Phantom.Utils.Collections
@implements IDisposable
@inject AgentManager AgentManager

<h1>Agents</h1>

<table class="table align-middle">
  <thead>
    <tr>
      <Column Width="200px; 44%">Name</Column>
      <Column Width=" 90px; 19%" Class="text-end">Instances</Column>
      <Column Width="145px; 21%" Class="text-end">Memory</Column>
      <Column Width="180px;  8%">Version</Column>
      <Column Width="320px">Identifier</Column>
      <Column Width="100px;  8%" Class="text-center">Status</Column>
      <Column Width="215px" Class="text-end">Last Ping</Column>
    </tr>
  </thead>
  @if (!agentTable.IsEmpty) {
    <tbody>
      @foreach (var agent in agentTable) {
        var usedInstances = agent.Stats?.RunningInstanceCount;
        var usedMemory = agent.Stats?.RunningInstanceMemory.InMegabytes;
        
        <tr>
          <td>@agent.Name</td>
          <td class="text-end">
            <ProgressBar Value="@(usedInstances ?? 0)" Maximum="@agent.MaxInstances">
              @(usedInstances?.ToString() ?? "?") / @agent.MaxInstances
            </ProgressBar>
          </td>
          <td class="text-end">
            <ProgressBar Value="@(usedMemory ?? 0)" Maximum="@agent.MaxMemory.InMegabytes">
              @(usedMemory?.ToString() ?? "?") / @agent.MaxMemory.InMegabytes MB
            </ProgressBar>
          </td>
          <td class="text-condensed">
            Build: <code>@agent.BuildVersion</code>
            <br>
            Protocol: <code>v@(agent.ProtocolVersion)</code>
          </td>
          <td>
            <code class="text-uppercase">@agent.Guid.ToString()</code>
          </td>
          @if (agent.IsOnline) {
            <td class="text-center text-success">Online</td>
            <td class="text-end"></td>
          }
          else {
            <td class="text-center text-danger">Offline</td>
            @if (agent.LastPing is {} lastPing) {
              <td class="text-end">
                <time datetime="@lastPing.ToString("o")" data-time-type="relative">@lastPing.ToString()</time>
              </td>
            }
            else {
              <td class="text-end">-</td>
            }
          }
        </tr>
      }
    </tbody>
  }
  else {
    <tfoot>
      <tr>
        <td colspan="7">No agents registered.</td>
      </tr>
    </tfoot>
  }
</table>

@code {

  private readonly Table<Agent, Guid> agentTable = new();

  protected override void OnInitialized() {
    AgentManager.AgentsChanged.Subscribe(this, agents => {
      var sortedAgents = agents.Sort(static (a1, a2) => a1.Name.CompareTo(a2.Name));
      agentTable.UpdateFrom(sortedAgents, static agent => agent.Guid, static agent => agent, static (agent, _) => agent);
      InvokeAsync(StateHasChanged);
    });
  }

  void IDisposable.Dispose() {
    AgentManager.AgentsChanged.Unsubscribe(this);
  }

}