@page "/clusters/{ClusterId}/audit"
@attribute [Microsoft.AspNetCore.Authorization.Authorize]
@rendermode RenderMode.InteractiveServer
@using Microsoft.EntityFrameworkCore
@using ZB.MOM.WW.OtOpcUa.Configuration
@using ZB.MOM.WW.OtOpcUa.Configuration.Entities
@inject IDbContextFactory<OtOpcUaConfigDbContext> DbFactory

<div class="d-flex justify-content-between align-items-center mb-3">
    <h4 class="mb-0">Audit log &middot; <span class="mono">@ClusterId</span></h4>
</div>

<ClusterNav ClusterId="@ClusterId" ActiveTab="audit" />

@if (_rows is null)
{
    <p>Loading…</p>
}
else
{
    <section class="panel notice rise" style="animation-delay:.02s">
        Latest @PageSize audit rows scoped to this cluster, newest first. EventId/CorrelationId
        columns (F3) make cross-restart deduplication possible — Akka actors that retry an apply
        won't insert duplicate rows. Details JSON is shown verbatim.
    </section>

    <section class="panel rise mt-3" style="animation-delay:.08s">
        <div class="panel-head">@_rows.Count row@(_rows.Count == 1 ? "" : "s")</div>
        @if (_rows.Count == 0)
        {
            <div style="padding:1rem" class="text-muted">No audit rows for this cluster yet.</div>
        }
        else
        {
            <div class="table-wrap">
                <table class="data-table">
                    <thead>
                        <tr>
                            <th>Timestamp</th>
                            <th>Principal</th>
                            <th>Event</th>
                            <th>Node</th>
                            <th>Correlation</th>
                            <th>Details</th>
                        </tr>
                    </thead>
                    <tbody>
                        @foreach (var a in _rows)
                        {
                            <tr>
                                <td><span class="mono small">@a.Timestamp.ToString("u")</span></td>
                                <td>@a.Principal</td>
                                <td><span class="chip chip-idle">@a.EventType</span></td>
                                <td><span class="mono small">@(a.NodeId ?? "—")</span></td>
                                <td><span class="mono small">@(a.CorrelationId?.ToString("N")[..8] ?? "—")</span></td>
                                <td class="text-muted small" style="max-width:400px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap">
                                    @(a.DetailsJson ?? "")
                                </td>
                            </tr>
                        }
                    </tbody>
                </table>
            </div>
        }
    </section>
}

@code {
    private const int PageSize = 200;

    [Parameter] public string ClusterId { get; set; } = "";
    private List<ConfigAuditLog>? _rows;

    protected override async Task OnInitializedAsync()
    {
        await using var db = await DbFactory.CreateDbContextAsync();
        _rows = await db.ConfigAuditLogs.AsNoTracking()
            .Where(a => a.ClusterId == ClusterId)
            .OrderByDescending(a => a.Timestamp)
            .Take(PageSize)
            .ToListAsync();
    }
}