feat(ops/monitoring): add in-memory log buffer, metrics time-series and ops UI integration

ts/monitoring/classes.metricsmanager.ts

@@ -1,6 +1,7 @@
 import * as plugins from '../plugins.js';
 import { DcRouter } from '../classes.dcrouter.js';
 import { MetricsCache } from './classes.metricscache.js';
+import { SecurityLogger, SecurityEventType } from '../security/classes.securitylogger.js';
 
 export class MetricsManager {
   private logger: plugins.smartlog.Smartlog;
@@ -37,6 +38,10 @@ export class MetricsManager {
     responseTimes: [] as number[], // Track response times in ms
   };
   
+  // Per-minute time-series buckets for charts
+  private emailMinuteBuckets = new Map<number, { sent: number; received: number; failed: number }>();
+  private dnsMinuteBuckets = new Map<number, { queries: number }>();
+
   // Track security-specific metrics
   private securityMetrics = {
     blockedIPs: 0,
@@ -227,20 +232,45 @@ export class MetricsManager {
     });
   }
   
+  /**
+   * Sync security metrics from the SecurityLogger singleton (last 24h).
+   * Called before returning security stats so counters reflect real events.
+   */
+  private syncFromSecurityLogger(): void {
+    try {
+      const securityLogger = SecurityLogger.getInstance();
+      const summary = securityLogger.getEventsSummary(86400000); // last 24h
+
+      this.securityMetrics.spamDetected = summary.byType[SecurityEventType.SPAM] || 0;
+      this.securityMetrics.malwareDetected = summary.byType[SecurityEventType.MALWARE] || 0;
+      this.securityMetrics.phishingDetected = summary.byType[SecurityEventType.DMARC] || 0; // phishing via DMARC
+      this.securityMetrics.authFailures =
+        summary.byType[SecurityEventType.AUTHENTICATION] || 0;
+      this.securityMetrics.blockedIPs =
+        (summary.byType[SecurityEventType.IP_REPUTATION] || 0) +
+        (summary.byType[SecurityEventType.REJECTED_CONNECTION] || 0);
+    } catch {
+      // SecurityLogger may not be initialized yet — ignore
+    }
+  }
+
   // Get security metrics
   public async getSecurityStats() {
     return this.metricsCache.get('securityStats', () => {
+      // Sync counters from the real SecurityLogger events
+      this.syncFromSecurityLogger();
+
       // Get recent incidents (last 20)
       const recentIncidents = this.securityMetrics.incidents.slice(-20);
-      
+
       return {
         blockedIPs: this.securityMetrics.blockedIPs,
         authFailures: this.securityMetrics.authFailures,
         spamDetected: this.securityMetrics.spamDetected,
         malwareDetected: this.securityMetrics.malwareDetected,
         phishingDetected: this.securityMetrics.phishingDetected,
-        totalThreatsBlocked: this.securityMetrics.spamDetected + 
-          this.securityMetrics.malwareDetected + 
+        totalThreatsBlocked: this.securityMetrics.spamDetected +
+          this.securityMetrics.malwareDetected +
           this.securityMetrics.phishingDetected,
         recentIncidents,
       };
@@ -275,6 +305,7 @@ export class MetricsManager {
   // Email event tracking methods
   public trackEmailSent(recipient?: string, deliveryTimeMs?: number): void {
     this.emailMetrics.sentToday++;
+    this.incrementEmailBucket('sent');
     
     if (recipient) {
       const count = this.emailMetrics.recipients.get(recipient) || 0;
@@ -311,6 +342,7 @@ export class MetricsManager {
   
   public trackEmailReceived(sender?: string): void {
     this.emailMetrics.receivedToday++;
+    this.incrementEmailBucket('received');
     
     this.emailMetrics.recentActivity.push({
       timestamp: Date.now(),
@@ -326,6 +358,7 @@ export class MetricsManager {
   
   public trackEmailFailed(recipient?: string, reason?: string): void {
     this.emailMetrics.failedToday++;
+    this.incrementEmailBucket('failed');
     
     this.emailMetrics.recentActivity.push({
       timestamp: Date.now(),
@@ -361,6 +394,7 @@ export class MetricsManager {
   // DNS event tracking methods
   public trackDnsQuery(queryType: string, domain: string, cacheHit: boolean, responseTimeMs?: number): void {
     this.dnsMetrics.totalQueries++;
+    this.incrementDnsBucket();
     
     if (cacheHit) {
       this.dnsMetrics.cacheHits++;
@@ -547,4 +581,90 @@ export class MetricsManager {
       };
     }, 200); // Use 200ms cache for more frequent updates
   }
+
+  // --- Time-series helpers ---
+
+  private static minuteKey(ts: number = Date.now()): number {
+    return Math.floor(ts / 60000) * 60000;
+  }
+
+  private incrementEmailBucket(field: 'sent' | 'received' | 'failed'): void {
+    const key = MetricsManager.minuteKey();
+    let bucket = this.emailMinuteBuckets.get(key);
+    if (!bucket) {
+      bucket = { sent: 0, received: 0, failed: 0 };
+      this.emailMinuteBuckets.set(key, bucket);
+    }
+    bucket[field]++;
+  }
+
+  private incrementDnsBucket(): void {
+    const key = MetricsManager.minuteKey();
+    let bucket = this.dnsMinuteBuckets.get(key);
+    if (!bucket) {
+      bucket = { queries: 0 };
+      this.dnsMinuteBuckets.set(key, bucket);
+    }
+    bucket.queries++;
+  }
+
+  private pruneOldBuckets(): void {
+    const cutoff = Date.now() - 86400000; // 24h
+    for (const key of this.emailMinuteBuckets.keys()) {
+      if (key < cutoff) this.emailMinuteBuckets.delete(key);
+    }
+    for (const key of this.dnsMinuteBuckets.keys()) {
+      if (key < cutoff) this.dnsMinuteBuckets.delete(key);
+    }
+  }
+
+  /**
+   * Get email time-series data for the last N hours, aggregated per minute.
+   */
+  public getEmailTimeSeries(hours: number = 24): {
+    sent: Array<{ timestamp: number; value: number }>;
+    received: Array<{ timestamp: number; value: number }>;
+    failed: Array<{ timestamp: number; value: number }>;
+  } {
+    this.pruneOldBuckets();
+    const cutoff = Date.now() - hours * 3600000;
+    const sent: Array<{ timestamp: number; value: number }> = [];
+    const received: Array<{ timestamp: number; value: number }> = [];
+    const failed: Array<{ timestamp: number; value: number }> = [];
+
+    const sortedKeys = Array.from(this.emailMinuteBuckets.keys())
+      .filter((k) => k >= cutoff)
+      .sort((a, b) => a - b);
+
+    for (const key of sortedKeys) {
+      const bucket = this.emailMinuteBuckets.get(key)!;
+      sent.push({ timestamp: key, value: bucket.sent });
+      received.push({ timestamp: key, value: bucket.received });
+      failed.push({ timestamp: key, value: bucket.failed });
+    }
+
+    return { sent, received, failed };
+  }
+
+  /**
+   * Get DNS time-series data for the last N hours, aggregated per minute.
+   */
+  public getDnsTimeSeries(hours: number = 24): {
+    queries: Array<{ timestamp: number; value: number }>;
+  } {
+    this.pruneOldBuckets();
+    const cutoff = Date.now() - hours * 3600000;
+    const queries: Array<{ timestamp: number; value: number }> = [];
+
+    const sortedKeys = Array.from(this.dnsMinuteBuckets.keys())
+      .filter((k) => k >= cutoff)
+      .sort((a, b) => a - b);
+
+    for (const key of sortedKeys) {
+      const bucket = this.dnsMinuteBuckets.get(key)!;
+      queries.push({ timestamp: key, value: bucket.queries });
+    }
+
+    return { queries };
+  }
 }