renaming services to more suitable names

apps/data-ingestion/src/handlers/qm/shared/session-manager.ts

@@ -0,0 +1,136 @@
+/**
+ * QM Session Manager - Centralized session state management
+ */
+
+import type { QMSession } from './types';
+import { QM_SESSION_IDS, SESSION_CONFIG } from './config';
+
+export class QMSessionManager {
+  private static instance: QMSessionManager | null = null;
+  private sessionCache: Record<string, QMSession[]> = {};
+  private isInitialized = false;
+
+  private constructor() {
+    // Initialize session cache with known session IDs
+    Object.values(QM_SESSION_IDS).forEach(sessionId => {
+      this.sessionCache[sessionId] = [];
+    });
+  }
+
+  static getInstance(): QMSessionManager {
+    if (!QMSessionManager.instance) {
+      QMSessionManager.instance = new QMSessionManager();
+    }
+    return QMSessionManager.instance;
+  }
+
+  /**
+   * Get a random session for the given session ID
+   */
+  getSession(sessionId: string): QMSession | null {
+    const sessions = this.sessionCache[sessionId];
+    if (!sessions || sessions.length === 0) {
+      return null;
+    }
+    
+    // Filter out sessions with excessive failures
+    const validSessions = sessions.filter(session => session.failedCalls <= SESSION_CONFIG.MAX_FAILED_CALLS);
+    if (validSessions.length === 0) {
+      return null;
+    }
+    
+    return validSessions[Math.floor(Math.random() * validSessions.length)];
+  }
+
+  /**
+   * Add a session to the cache
+   */
+  addSession(sessionId: string, session: QMSession): void {
+    if (!this.sessionCache[sessionId]) {
+      this.sessionCache[sessionId] = [];
+    }
+    this.sessionCache[sessionId].push(session);
+  }
+
+  /**
+   * Get all sessions for a session ID
+   */
+  getSessions(sessionId: string): QMSession[] {
+    return this.sessionCache[sessionId] || [];
+  }
+
+  /**
+   * Get session count for all session IDs
+   */
+  getSessionCount(): number {
+    return Object.values(this.sessionCache).reduce((total, sessions) => total + sessions.length, 0);
+  }
+
+  /**
+   * Clean up failed sessions
+   */
+  cleanupFailedSessions(): number {
+    let removedCount = 0;
+    
+    Object.keys(this.sessionCache).forEach(sessionId => {
+      const initialCount = this.sessionCache[sessionId].length;
+      this.sessionCache[sessionId] = this.sessionCache[sessionId].filter(
+        session => session.failedCalls <= SESSION_CONFIG.MAX_FAILED_CALLS
+      );
+      removedCount += initialCount - this.sessionCache[sessionId].length;
+    });
+    
+    return removedCount;
+  }
+
+  /**
+   * Check if more sessions are needed for a session ID
+   */
+  needsMoreSessions(sessionId: string): boolean {
+    const sessions = this.sessionCache[sessionId] || [];
+    const validSessions = sessions.filter(session => session.failedCalls <= SESSION_CONFIG.MAX_FAILED_CALLS);
+    return validSessions.length < SESSION_CONFIG.MIN_SESSIONS;
+  }
+
+  /**
+   * Check if session ID is at capacity
+   */
+  isAtCapacity(sessionId: string): boolean {
+    const sessions = this.sessionCache[sessionId] || [];
+    return sessions.length >= SESSION_CONFIG.MAX_SESSIONS;
+  }
+
+  /**
+   * Get session cache statistics
+   */
+  getStats() {
+    const stats: Record<string, { total: number; valid: number; failed: number }> = {};
+    
+    Object.entries(this.sessionCache).forEach(([sessionId, sessions]) => {
+      const validSessions = sessions.filter(session => session.failedCalls <= SESSION_CONFIG.MAX_FAILED_CALLS);
+      const failedSessions = sessions.filter(session => session.failedCalls > SESSION_CONFIG.MAX_FAILED_CALLS);
+      
+      stats[sessionId] = {
+        total: sessions.length,
+        valid: validSessions.length,
+        failed: failedSessions.length
+      };
+    });
+    
+    return stats;
+  }
+
+  /**
+   * Mark manager as initialized
+   */
+  setInitialized(initialized: boolean = true): void {
+    this.isInitialized = initialized;
+  }
+
+  /**
+   * Check if manager is initialized
+   */
+  getInitialized(): boolean {
+    return this.isInitialized;
+  }
+}