Files
scadalink-design/src/ScadaLink.CentralUI/Components/Pages/Monitoring/EventLogs.razor
Joseph Doherty e21791adb0 refactor(ui/monitoring): KPI dashboard, message expand, copy, pagination fix
Dashboard: user-info card demoted; 4 KPI cards (Sites, Data
connections, Templates, API keys) sourced from existing repositories;
3 Quick-action link cards (Health, Audit Log, Templates). Inline
max-width style replaced with Bootstrap utilities.

Health: KPI row condensed to Online / Offline / Sites with active
errors (Total Sites and Total Script Errors dropped). Per-site cards
re-laid out 2-column with each subsection (Data Connections,
Instances & Queues, Errors & Parked Messages) inside Bootstrap
collapse panels collapsed by default. Online / Offline / Primary /
Standby badges paired with shape glyphs (o / * / triangle) plus
aria-label.

EventLogs: filter row wrapped in a Bootstrap collapse toggled by
"Filter options (n active)"; per-row View toggle reveals the full
message in a collapse row; "Keyword" relabeled "Message contains";
all filter inputs gain id+label-for+aria-label; severity badges paired
with a leading glyph; explicit "End of results" terminator on
Load more.

ParkedMessages: Message ID rendered as <code>{first 12}...</code>
plus a clipboard button; per-row View toggle reveals full error;
action buttons get aria-label="{Retry|Discard} message {id}";
in-flight spinner inside the active button.

AuditLog: pagination Next-disabled now uses
_page * _pageSize >= _totalCount via HasMore helper (fixes the
exactly-page-size edge case). Clear filters button added. Entity ID
rendered as code + clipboard button. View/Hide buttons gain
aria-label referencing the entry id. State JSON larger than 1 KB
renders a "View in modal" button instead of the inline overflow.
2026-05-12 03:33:06 -04:00

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@page "/monitoring/event-logs"
@attribute [Authorize]
@using ScadaLink.Commons.Entities.Sites
@using ScadaLink.Commons.Interfaces.Repositories
@using ScadaLink.Commons.Messages.RemoteQuery
@using ScadaLink.Communication
@inject ISiteRepository SiteRepository
@inject CommunicationService CommunicationService
<div class="container-fluid mt-3">
<div class="d-flex justify-content-between align-items-center mb-3">
<h4 class="mb-0">Site Event Logs</h4>
<button class="btn btn-outline-secondary btn-sm"
type="button"
data-bs-toggle="collapse"
data-bs-target="#event-logs-filters"
aria-expanded="true"
aria-controls="event-logs-filters">
Filter options (@ActiveFilterCount active)
</button>
</div>
<ToastNotification @ref="_toast" />
<div class="collapse show" id="event-logs-filters">
<div class="row mb-3 g-2 align-items-end">
<div class="col-md-2">
<label class="form-label small" for="filter-site">Site</label>
<select id="filter-site" class="form-select form-select-sm" aria-label="Site" @bind="_selectedSiteId">
<option value="">Select site...</option>
@foreach (var site in _sites)
{
<option value="@site.SiteIdentifier">@site.Name</option>
}
</select>
</div>
<div class="col-md-2">
<label class="form-label small" for="filter-event-type">Event Type</label>
<input id="filter-event-type"
type="text"
class="form-control form-control-sm"
aria-label="Event type"
@bind="_filterEventType"
placeholder="e.g. ScriptError" />
</div>
<div class="col-md-1">
<label class="form-label small" for="filter-severity">Severity</label>
<select id="filter-severity"
class="form-select form-select-sm"
aria-label="Severity"
@bind="_filterSeverity">
<option value="">All</option>
<option>Info</option>
<option>Warning</option>
<option>Error</option>
</select>
</div>
<div class="col-md-2">
<label class="form-label small" for="filter-from">From</label>
<input id="filter-from"
type="datetime-local"
class="form-control form-control-sm"
aria-label="From timestamp"
@bind="_filterFrom" />
</div>
<div class="col-md-2">
<label class="form-label small" for="filter-to">To</label>
<input id="filter-to"
type="datetime-local"
class="form-control form-control-sm"
aria-label="To timestamp"
@bind="_filterTo" />
</div>
<div class="col-md-1">
<label class="form-label small" for="filter-keyword">Message contains</label>
<input id="filter-keyword"
type="text"
class="form-control form-control-sm"
aria-label="Message contains"
@bind="_filterKeyword" />
</div>
<div class="col-md-2">
<label class="form-label small" for="filter-instance">Instance</label>
<input id="filter-instance"
type="text"
class="form-control form-control-sm"
aria-label="Instance name"
@bind="_filterInstanceName"
placeholder="Instance name" />
</div>
<div class="col-md-12 d-flex gap-2">
<button class="btn btn-primary btn-sm" @onclick="Search" disabled="@(string.IsNullOrEmpty(_selectedSiteId) || _searching)">
@if (_searching) { <span class="spinner-border spinner-border-sm me-1" role="status"></span> }
Search
</button>
</div>
</div>
</div>
@if (_errorMessage != null)
{
<div class="alert alert-danger">@_errorMessage</div>
}
@if (_entries != null)
{
<table class="table table-sm table-striped table-hover">
<thead class="table-dark">
<tr>
<th style="width: 1%;"></th>
<th>Timestamp</th>
<th>Type</th>
<th>Severity</th>
<th>Instance</th>
<th>Source</th>
<th>Message</th>
</tr>
</thead>
<tbody>
@if (_entries.Count == 0)
{
<tr><td colspan="7" class="text-muted text-center">No events found.</td></tr>
}
@for (int i = 0; i < _entries.Count; i++)
{
var idx = i;
var entry = _entries[idx];
var rowClass = entry.Severity == "Error" ? "table-danger"
: entry.Severity == "Warning" ? "table-warning"
: "";
var expanded = _expandedRows.Contains(idx);
<tr class="@rowClass">
<td>
<button class="btn btn-link btn-sm p-0"
@onclick="() => ToggleRow(idx)"
aria-label="@(expanded ? "Hide full message" : "View full message")">
@(expanded ? "Hide" : "View")
</button>
</td>
<td class="small"><TimestampDisplay Value="@entry.Timestamp" /></td>
<td class="small">@entry.EventType</td>
<td>
<span class="badge @GetSeverityBadge(entry.Severity)" aria-label="Severity: @entry.Severity">
@SeverityGlyph(entry.Severity) @entry.Severity
</span>
</td>
<td class="small">@(entry.InstanceId ?? "—")</td>
<td class="small">@entry.Source</td>
<td class="small text-truncate" style="max-width: 380px;">@entry.Message</td>
</tr>
@if (expanded)
{
<tr class="@rowClass">
<td colspan="7">
<pre class="small mb-0">@entry.Message</pre>
</td>
</tr>
}
}
</tbody>
</table>
<div class="d-flex justify-content-between align-items-center">
<span class="text-muted small">Showing @_entries.Count entries</span>
<div>
@if (_hasMore)
{
<button class="btn btn-outline-primary btn-sm" @onclick="LoadMore" disabled="@_searching">Load more</button>
}
else if (_entries.Count > 0)
{
<span class="text-muted small">End of results</span>
}
</div>
</div>
}
</div>
@code {
private List<Site> _sites = new();
private string _selectedSiteId = string.Empty;
private string? _filterEventType;
private string _filterSeverity = string.Empty;
private DateTime? _filterFrom;
private DateTime? _filterTo;
private string? _filterKeyword;
private string? _filterInstanceName;
private List<EventLogEntry>? _entries;
private bool _hasMore;
private long? _continuationToken;
private bool _searching;
private string? _errorMessage;
private ToastNotification _toast = default!;
private readonly HashSet<int> _expandedRows = new();
private int ActiveFilterCount
{
get
{
var n = 0;
if (!string.IsNullOrEmpty(_selectedSiteId)) n++;
if (!string.IsNullOrWhiteSpace(_filterEventType)) n++;
if (!string.IsNullOrEmpty(_filterSeverity)) n++;
if (_filterFrom.HasValue) n++;
if (_filterTo.HasValue) n++;
if (!string.IsNullOrWhiteSpace(_filterKeyword)) n++;
if (!string.IsNullOrWhiteSpace(_filterInstanceName)) n++;
return n;
}
}
protected override async Task OnInitializedAsync()
{
_sites = (await SiteRepository.GetAllSitesAsync()).ToList();
}
private async Task Search()
{
_entries = new();
_continuationToken = null;
_expandedRows.Clear();
await FetchPage();
}
private async Task LoadMore() => await FetchPage();
private void ToggleRow(int idx)
{
if (!_expandedRows.Add(idx))
{
_expandedRows.Remove(idx);
}
}
private async Task FetchPage()
{
_searching = true;
_errorMessage = null;
try
{
var request = new EventLogQueryRequest(
CorrelationId: Guid.NewGuid().ToString("N"),
SiteId: _selectedSiteId,
From: _filterFrom.HasValue ? new DateTimeOffset(_filterFrom.Value, TimeSpan.Zero) : null,
To: _filterTo.HasValue ? new DateTimeOffset(_filterTo.Value, TimeSpan.Zero) : null,
EventType: string.IsNullOrWhiteSpace(_filterEventType) ? null : _filterEventType.Trim(),
Severity: string.IsNullOrWhiteSpace(_filterSeverity) ? null : _filterSeverity,
InstanceId: string.IsNullOrWhiteSpace(_filterInstanceName) ? null : _filterInstanceName.Trim(),
KeywordFilter: string.IsNullOrWhiteSpace(_filterKeyword) ? null : _filterKeyword.Trim(),
ContinuationToken: _continuationToken,
PageSize: 50,
Timestamp: DateTimeOffset.UtcNow);
var response = await CommunicationService.QueryEventLogsAsync(_selectedSiteId, request);
if (response.Success)
{
_entries ??= new();
_entries.AddRange(response.Entries);
_hasMore = response.HasMore;
_continuationToken = response.ContinuationToken;
}
else
{
_errorMessage = response.ErrorMessage ?? "Query failed.";
}
}
catch (Exception ex)
{
_errorMessage = $"Query failed: {ex.Message}";
}
_searching = false;
}
private static string GetSeverityBadge(string severity) => severity switch
{
"Error" => "bg-danger",
"Warning" => "bg-warning text-dark",
"Info" => "bg-info text-dark",
_ => "bg-secondary"
};
private static string SeverityGlyph(string severity) => severity switch
{
"Error" => "⛔",
"Warning" => "⚠",
"Info" => "",
_ => "•"
};
}