'192.168.0.16',
'database' => 'controls',
'username' => 'lasucaai',
'password' => 'is413#dfslw',
];
// ============================================================================
// Database Connection
// ============================================================================
function getAlertLogConnection($config) {
$conn = mysqli_connect(
$config['host'],
$config['username'],
$config['password'],
$config['database']
);
if ($conn) {
mysqli_set_charset($conn, 'utf8mb4');
}
return $conn ?: null;
}
// ============================================================================
// Data Queries
// ============================================================================
function getAlertLogs($conn, $filters = []) {
$params = [];
$types = '';
$sql = "SELECT id, alert_type, alert_tag, alert_value, threshold_value,
alert_message, source_page, logged_at
FROM alert_log
WHERE 1=1";
// Filter by alert type
if (!empty($filters['type'])) {
$sql .= " AND alert_type = ?";
$params[] = $filters['type'];
$types .= 's';
}
// Filter by tag
if (!empty($filters['tag'])) {
$sql .= " AND alert_tag = ?";
$params[] = $filters['tag'];
$types .= 's';
}
// Filter by date range
if (!empty($filters['date_from'])) {
$sql .= " AND logged_at >= ?";
$params[] = $filters['date_from'] . ' 00:00:00';
$types .= 's';
}
if (!empty($filters['date_to'])) {
$sql .= " AND logged_at <= ?";
$params[] = $filters['date_to'] . ' 23:59:59';
$types .= 's';
}
$sql .= " ORDER BY logged_at DESC LIMIT 500";
$logs = [];
if (!empty($params)) {
$stmt = mysqli_prepare($conn, $sql);
if ($stmt) {
mysqli_stmt_bind_param($stmt, $types, ...$params);
mysqli_stmt_execute($stmt);
$result = mysqli_stmt_get_result($stmt);
while ($row = mysqli_fetch_assoc($result)) {
$logs[] = $row;
}
mysqli_stmt_close($stmt);
}
} else {
$result = mysqli_query($conn, $sql);
if ($result) {
while ($row = mysqli_fetch_assoc($result)) {
$logs[] = $row;
}
}
}
return $logs;
}
function getAlertStats($conn) {
$sql = "SELECT
COUNT(*) as total_alerts,
COUNT(DISTINCT alert_tag) as unique_tags,
MIN(logged_at) as first_alert,
MAX(logged_at) as last_alert,
SUM(CASE WHEN alert_type = 'danger' THEN 1 ELSE 0 END) as danger_count,
SUM(CASE WHEN alert_type = 'warning' THEN 1 ELSE 0 END) as warning_count,
SUM(CASE WHEN alert_type = 'info' THEN 1 ELSE 0 END) as info_count,
SUM(CASE WHEN logged_at > DATE_SUB(NOW(), INTERVAL 24 HOUR) THEN 1 ELSE 0 END) as last_24h
FROM alert_log";
$result = mysqli_query($conn, $sql);
return $result ? mysqli_fetch_assoc($result) : null;
}
function getDistinctTags($conn) {
$sql = "SELECT DISTINCT alert_tag FROM alert_log ORDER BY alert_tag";
$result = mysqli_query($conn, $sql);
$tags = [];
if ($result) {
while ($row = mysqli_fetch_assoc($result)) {
$tags[] = $row['alert_tag'];
}
}
return $tags;
}
function getAlertsByHour($conn, $days = 7) {
$sql = "SELECT
DATE(logged_at) as alert_date,
HOUR(logged_at) as alert_hour,
COUNT(*) as count
FROM alert_log
WHERE logged_at > DATE_SUB(NOW(), INTERVAL ? DAY)
GROUP BY DATE(logged_at), HOUR(logged_at)
ORDER BY alert_date, alert_hour";
$stmt = mysqli_prepare($conn, $sql);
$data = [];
if ($stmt) {
mysqli_stmt_bind_param($stmt, 'i', $days);
mysqli_stmt_execute($stmt);
$result = mysqli_stmt_get_result($stmt);
while ($row = mysqli_fetch_assoc($result)) {
$data[] = $row;
}
mysqli_stmt_close($stmt);
}
return $data;
}
function getTopAlerts($conn, $limit = 10) {
$sql = "SELECT alert_tag, alert_type, COUNT(*) as count,
MIN(alert_value) as min_value,
MAX(alert_value) as max_value,
AVG(alert_value) as avg_value,
MAX(logged_at) as last_seen
FROM alert_log
GROUP BY alert_tag, alert_type
ORDER BY count DESC
LIMIT ?";
$stmt = mysqli_prepare($conn, $sql);
$data = [];
if ($stmt) {
mysqli_stmt_bind_param($stmt, 'i', $limit);
mysqli_stmt_execute($stmt);
$result = mysqli_stmt_get_result($stmt);
while ($row = mysqli_fetch_assoc($result)) {
$data[] = $row;
}
mysqli_stmt_close($stmt);
}
return $data;
}
// ============================================================================
// Main Logic
// ============================================================================
$conn = getAlertLogConnection($config);
$connectionError = $conn === null;
$tableExists = false;
$stats = null;
$logs = [];
$distinctTags = [];
$topAlerts = [];
$alertsByHour = [];
// Get filter values
$filterType = isset($_GET['type']) ? trim($_GET['type']) : '';
$filterTag = isset($_GET['tag']) ? trim($_GET['tag']) : '';
$filterDateFrom = isset($_GET['date_from']) ? trim($_GET['date_from']) : '';
$filterDateTo = isset($_GET['date_to']) ? trim($_GET['date_to']) : '';
if (!$connectionError) {
// Check if table exists
$tableCheck = mysqli_query($conn, "SHOW TABLES LIKE 'alert_log'");
$tableExists = $tableCheck && mysqli_num_rows($tableCheck) > 0;
if ($tableExists) {
$stats = getAlertStats($conn);
$distinctTags = getDistinctTags($conn);
$topAlerts = getTopAlerts($conn, 10);
$alertsByHour = getAlertsByHour($conn, 7);
$logs = getAlertLogs($conn, [
'type' => $filterType,
'tag' => $filterTag,
'date_from' => $filterDateFrom,
'date_to' => $filterDateTo,
]);
}
mysqli_close($conn);
}
// ============================================================================
// Page Layout
// ============================================================================
$pageTitle = 'Alert Log Viewer';
$pageSubtitle = 'System Alert History';
$pageDescription = 'View and analyze historical system alerts.';
$layoutWithoutSidebar = true;
$layoutReturnUrl = 'overview.php';
$layoutReturnLabel = 'Back to overview';
$assetBasePath = '';
require __DIR__ . '/includes/layout/header.php';
?>
⚠️ Unable to connect to the database.
📋
No Alert Logs Yet
The alert_log table doesn't exist yet. Alerts will be logged when they first trigger.
🔥 Most Frequent Alerts
📜 Alert Log
📭
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Showing alerts (max 500)