@page "/sessions"
@inherits DashboardPageBase

<PageTitle>Dashboard Sessions</PageTitle>

@if (Snapshot is null)
{
    <div class="empty-state">Loading sessions.</div>
}
else
{
    <div class="dashboard-page-header">
        <div>
            <h1>Sessions</h1>
            <div class="text-secondary">@Snapshot.Sessions.Count session rows</div>
        </div>
    </div>

    <section class="dashboard-section">
        @if (Snapshot.Sessions.Count == 0)
        {
            <div class="empty-state">No sessions are active or retained.</div>
        }
        else
        {
            <div class="table-responsive">
                <table class="table table-sm align-middle dashboard-table">
                    <thead>
                        <tr>
                            <th scope="col">Session</th>
                            <th scope="col">State</th>
                            <th scope="col">Client</th>
                            <th scope="col">Backend</th>
                            <th scope="col">Worker</th>
                            <th scope="col">Opened</th>
                            <th scope="col">Activity</th>
                            <th scope="col">Heartbeat</th>
                            <th scope="col">Fault</th>
                        </tr>
                    </thead>
                    <tbody>
                        @foreach (DashboardSessionSummary session in Snapshot.Sessions)
                        {
                            <tr>
                                <td><NavLink href="@($"sessions/{Uri.EscapeDataString(session.SessionId)}")"><code>@session.SessionId</code></NavLink></td>
                                <td><StatusBadge Text="@session.State.ToString()" /></td>
                                <td>@DashboardDisplay.Text(session.ClientIdentity)</td>
                                <td>@session.BackendName</td>
                                <td>
                                    @(session.WorkerProcessId?.ToString(System.Globalization.CultureInfo.InvariantCulture) ?? "-")
                                    @if (session.WorkerState is not null)
                                    {
                                        <span class="ms-1"><StatusBadge Text="@session.WorkerState.ToString()" /></span>
                                    }
                                </td>
                                <td>@DashboardDisplay.DateTime(session.OpenedAt)</td>
                                <td>@DashboardDisplay.DateTime(session.LastClientActivityAt)</td>
                                <td>@DashboardDisplay.DateTime(session.LastWorkerHeartbeatAt)</td>
                                <td>@DashboardDisplay.Text(session.LastFault)</td>
                            </tr>
                        }
                    </tbody>
                </table>
            </div>
        }
    </section>
}