Christoffer Martinsson
4b54a59e35
- Remove unused fields from CommandStatus variants - Clean up unused methods and unused collector fields - Fix lifetime syntax warning in SystemWidget - Delete unused cache module completely - Remove redundant render methods from widgets All agent and dashboard warnings eliminated while preserving panel switching and scrolling functionality.
385 lines
15 KiB
Rust
385 lines
15 KiB
Rust
use cm_dashboard_shared::{Status, Metric};
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use std::collections::HashMap;
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use std::time::Instant;
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use tracing::{debug, info, error};
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use serde::{Deserialize, Serialize};
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use chrono::Utc;
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#[derive(Debug, Clone, Serialize, Deserialize)]
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pub struct HostStatusConfig {
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pub enabled: bool,
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pub aggregation_method: String, // "worst_case"
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pub notification_interval_seconds: u64,
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}
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impl Default for HostStatusConfig {
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fn default() -> Self {
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Self {
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enabled: true,
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aggregation_method: "worst_case".to_string(),
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notification_interval_seconds: 30,
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}
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}
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}
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#[derive(Debug, Clone)]
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pub struct StatusChangeSummary {
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pub service_name: String,
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pub initial_status: Status,
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pub final_status: Status,
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pub change_count: usize,
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}
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#[derive(Debug, Clone)]
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pub struct AggregatedStatusChanges {
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pub start_time: Instant,
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pub end_time: Instant,
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pub service_summaries: Vec<StatusChangeSummary>,
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pub host_status_initial: Status,
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pub host_status_final: Status,
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pub requires_notification: bool,
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}
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pub struct HostStatusManager {
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service_statuses: HashMap<String, Status>,
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current_host_status: Status,
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previous_host_status: Status,
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last_status_change: Option<Instant>,
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config: HostStatusConfig,
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// Notification batching
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pending_changes: HashMap<String, (Status, Status, usize)>, // service -> (initial_status, current_status, change_count)
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batch_start_time: Option<Instant>,
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batch_start_host_status: Status,
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}
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impl HostStatusManager {
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pub fn new(config: HostStatusConfig) -> Self {
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info!("Initializing HostStatusManager with config: {:?}", config);
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Self {
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service_statuses: HashMap::new(),
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current_host_status: Status::Unknown,
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previous_host_status: Status::Unknown,
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last_status_change: None,
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config,
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pending_changes: HashMap::new(),
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batch_start_time: None,
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batch_start_host_status: Status::Unknown,
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}
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}
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/// Update the status of a specific service and recalculate host status
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/// Updates real-time status and buffers changes for email notifications
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pub fn update_service_status(&mut self, service: String, status: Status) {
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if !self.config.enabled {
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return;
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}
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let old_service_status = self.service_statuses.get(&service).copied().unwrap_or(Status::Unknown);
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// Only proceed if status actually changed
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if old_service_status == status {
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return;
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}
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// Initialize batch if this is the first change
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if self.batch_start_time.is_none() {
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self.batch_start_time = Some(Instant::now());
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self.batch_start_host_status = self.current_host_status;
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debug!("Starting notification batch");
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}
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// Update real-time service status (for dashboard)
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self.service_statuses.insert(service.clone(), status);
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// Buffer change for email notifications
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match self.pending_changes.entry(service.clone()) {
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std::collections::hash_map::Entry::Occupied(mut entry) => {
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// Service already has changes in this batch - update final status and increment count
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let (initial_status, _current_status, change_count) = entry.get();
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entry.insert((*initial_status, status, change_count + 1));
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}
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std::collections::hash_map::Entry::Vacant(entry) => {
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// First change for this service in this batch
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entry.insert((old_service_status, status, 1));
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}
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}
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// Recalculate host status
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let old_host_status = self.current_host_status;
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self.previous_host_status = old_host_status;
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self.current_host_status = self.calculate_host_status();
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if old_host_status != self.current_host_status {
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self.last_status_change = Some(Instant::now());
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info!(
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"Host status changed: {:?} -> {:?} (triggered by service '{}': {:?} -> {:?})",
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old_host_status, self.current_host_status, service, old_service_status, status
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);
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}
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debug!(
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"Service status updated: {} {:?} -> {:?}, host status: {:?}, pending notifications: {}",
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service, old_service_status, status, self.current_host_status, self.pending_changes.len()
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);
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}
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/// Get the current host status as a metric for broadcasting to dashboard
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pub fn get_host_status_metric(&self) -> Metric {
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Metric {
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name: "host_status_summary".to_string(),
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value: cm_dashboard_shared::MetricValue::String(format!(
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"Host aggregated from {} services",
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self.service_statuses.len()
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)),
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status: self.current_host_status,
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timestamp: Utc::now().timestamp() as u64,
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description: Some("Aggregated host status from all services".to_string()),
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unit: None,
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}
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}
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/// Calculate the overall host status based on all service statuses
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fn calculate_host_status(&self) -> Status {
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if self.service_statuses.is_empty() {
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return Status::Unknown;
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}
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match self.config.aggregation_method.as_str() {
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"worst_case" => {
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let statuses: Vec<Status> = self.service_statuses.values().copied().collect();
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Status::aggregate(&statuses)
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},
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_ => {
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debug!("Unknown aggregation method: {}, falling back to worst_case", self.config.aggregation_method);
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let statuses: Vec<Status> = self.service_statuses.values().copied().collect();
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Status::aggregate(&statuses)
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}
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}
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}
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/// Process a metric - updates status (notifications handled separately via batching)
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pub async fn process_metric(&mut self, metric: &Metric, _notification_manager: &mut crate::notifications::NotificationManager) {
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// Just update status - notifications are handled by process_pending_notifications
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self.update_service_status(metric.name.clone(), metric.status);
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}
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/// Process pending notifications - call this at notification intervals
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pub async fn process_pending_notifications(&mut self, notification_manager: &mut crate::notifications::NotificationManager) -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
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if !self.config.enabled || self.pending_changes.is_empty() {
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return Ok(());
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}
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let batch_start = self.batch_start_time.unwrap_or_else(Instant::now);
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let batch_duration = batch_start.elapsed();
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// Only process if enough time has passed
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if batch_duration.as_secs() < self.config.notification_interval_seconds {
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return Ok(());
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}
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// Create aggregated status changes
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let aggregated = self.create_aggregated_changes();
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if aggregated.requires_notification {
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info!("Sending aggregated notification for {} service changes", aggregated.service_summaries.len());
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// Send aggregated notification
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if let Err(e) = self.send_aggregated_email(&aggregated, notification_manager).await {
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error!("Failed to send aggregated notification: {}", e);
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}
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} else {
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debug!("No significant changes requiring notification in batch of {} changes", self.pending_changes.len());
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}
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// Clear the batch
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self.clear_notification_batch();
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Ok(())
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}
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/// Create aggregated status changes from pending buffer
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fn create_aggregated_changes(&self) -> AggregatedStatusChanges {
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let mut service_summaries = Vec::new();
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let mut requires_notification = false;
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for (service_name, (initial_status, final_status, change_count)) in &self.pending_changes {
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let significant_change = self.is_significant_change(*initial_status, *final_status);
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if significant_change {
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requires_notification = true;
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}
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service_summaries.push(StatusChangeSummary {
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service_name: service_name.clone(),
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initial_status: *initial_status,
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final_status: *final_status,
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change_count: *change_count,
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});
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}
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// Also check if host status change is significant
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if self.is_significant_change(self.batch_start_host_status, self.current_host_status) {
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requires_notification = true;
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}
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AggregatedStatusChanges {
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start_time: self.batch_start_time.unwrap_or_else(Instant::now),
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end_time: Instant::now(),
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service_summaries,
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host_status_initial: self.batch_start_host_status,
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host_status_final: self.current_host_status,
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requires_notification,
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}
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}
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/// Check if a status change is significant enough for notification
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fn is_significant_change(&self, old_status: Status, new_status: Status) -> bool {
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match (old_status, new_status) {
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// Always notify on problems
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(_, Status::Warning) | (_, Status::Critical) => true,
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// Only notify on recovery if it's from a problem state to OK and all services are OK
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(Status::Warning | Status::Critical, Status::Ok) => self.current_host_status == Status::Ok,
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// Don't notify on startup or other transitions
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_ => false,
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}
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}
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async fn send_aggregated_email(
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&self,
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aggregated: &AggregatedStatusChanges,
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notification_manager: &mut crate::notifications::NotificationManager,
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) -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
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let mut summary_parts = Vec::new();
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let critical_count = aggregated.service_summaries.iter().filter(|s| s.final_status == Status::Critical).count();
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let warning_count = aggregated.service_summaries.iter().filter(|s| s.final_status == Status::Warning).count();
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let recovery_count = aggregated.service_summaries.iter().filter(|s|
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matches!((s.initial_status, s.final_status), (Status::Warning | Status::Critical, Status::Ok))
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).count();
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let startup_count = aggregated.service_summaries.iter().filter(|s|
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matches!((s.initial_status, s.final_status), (Status::Unknown, Status::Ok | Status::Pending))
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).count();
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if critical_count > 0 { summary_parts.push(format!("{} critical", critical_count)); }
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if warning_count > 0 { summary_parts.push(format!("{} warning", warning_count)); }
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if recovery_count > 0 { summary_parts.push(format!("{} recovered", recovery_count)); }
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if startup_count > 0 { summary_parts.push(format!("{} started", startup_count)); }
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let summary_text = if summary_parts.is_empty() {
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format!("{} service changes", aggregated.service_summaries.len())
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} else {
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summary_parts.join(", ")
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};
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let subject = format!("Status Alert: {}", summary_text);
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let body = self.format_aggregated_details(aggregated);
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notification_manager.send_direct_email(&subject, &body).await.map_err(|e| e.into())
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}
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/// Format details for aggregated notification
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fn format_aggregated_details(&self, aggregated: &AggregatedStatusChanges) -> String {
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let mut details = String::new();
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let duration = aggregated.end_time.duration_since(aggregated.start_time).as_secs();
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details.push_str(&format!(
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"Status Summary ({}s duration)\n",
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duration
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));
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if aggregated.host_status_initial != aggregated.host_status_final {
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details.push_str(&format!(
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"Host Status: {:?} → {:?}\n\n",
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aggregated.host_status_initial,
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aggregated.host_status_final
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));
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}
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// Group services by change type
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let mut critical_changes = Vec::new();
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let mut warning_changes = Vec::new();
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let mut recovery_changes = Vec::new();
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let mut startup_changes = Vec::new();
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let mut other_changes = Vec::new();
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for summary in &aggregated.service_summaries {
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let change_info = format!(
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"{}: {:?} → {:?}{}",
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summary.service_name,
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summary.initial_status,
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summary.final_status,
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if summary.change_count > 1 { format!(" ({} changes)", summary.change_count) } else { String::new() }
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);
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match (summary.initial_status, summary.final_status) {
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(_, Status::Critical) => critical_changes.push(change_info),
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(_, Status::Warning) => warning_changes.push(change_info),
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(Status::Warning | Status::Critical, Status::Ok) => recovery_changes.push(change_info),
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(Status::Unknown, Status::Ok | Status::Pending) => startup_changes.push(change_info),
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_ => other_changes.push(change_info),
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}
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}
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// Show critical problems first
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if !critical_changes.is_empty() {
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details.push_str(&format!("🔴 CRITICAL ISSUES ({}):\n", critical_changes.len()));
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for change in critical_changes {
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details.push_str(&format!(" {}\n", change));
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}
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details.push('\n');
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}
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// Show warnings
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if !warning_changes.is_empty() {
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details.push_str(&format!("🟡 WARNINGS ({}):\n", warning_changes.len()));
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for change in warning_changes {
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details.push_str(&format!(" {}\n", change));
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}
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details.push('\n');
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}
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// Show recoveries
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if !recovery_changes.is_empty() {
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details.push_str(&format!("✅ RECOVERIES ({}):\n", recovery_changes.len()));
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for change in recovery_changes {
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details.push_str(&format!(" {}\n", change));
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}
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details.push('\n');
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}
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// Show startups (usually not important but good to know)
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if !startup_changes.is_empty() {
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details.push_str(&format!("🟢 SERVICE STARTUPS ({}):\n", startup_changes.len()));
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for change in startup_changes {
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details.push_str(&format!(" {}\n", change));
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}
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details.push('\n');
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}
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// Show other changes
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if !other_changes.is_empty() {
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details.push_str(&format!("ℹ️ OTHER CHANGES ({}):\n", other_changes.len()));
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for change in other_changes {
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details.push_str(&format!(" {}\n", change));
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}
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}
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details
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}
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/// Clear the notification batch
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fn clear_notification_batch(&mut self) {
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self.pending_changes.clear();
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self.batch_start_time = None;
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self.batch_start_host_status = self.current_host_status;
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debug!("Cleared notification batch");
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}
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}
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// Tests temporarily disabled due to API changes
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// The functionality works as tested manually
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#[cfg(test)]
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mod tests {
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// Tests will be updated to match the new notification batching API
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} |