moved folders around

libs/core/handlers/src/base/BaseHandler.ts

@@ -0,0 +1,69 @@
+import type { ServiceContainer } from '@stock-bot/di';
+import { getLogger } from '@stock-bot/logger';
+import type { IHandler, ExecutionContext } from '../types/types';
+
+/**
+ * Abstract base class for all handlers
+ * Provides common functionality and structure for queue/event operations
+ */
+export abstract class BaseHandler implements IHandler {
+  protected readonly logger;
+
+  constructor(protected readonly container: ServiceContainer) {
+    this.logger = getLogger(this.constructor.name);
+  }
+
+  /**
+   * Main execution method - must be implemented by subclasses
+   * Works with queue (events commented for future)
+   */
+  abstract execute(operation: string, input: unknown, context: ExecutionContext): Promise<unknown>;
+
+  /**
+   * Queue helper methods
+   */
+  protected async scheduleOperation(operation: string, payload: unknown, delay?: number): Promise<void> {
+    const queue = await this.container.resolveAsync('queue');
+    await queue.add(operation, payload, { delay });
+  }
+
+  /**
+   * Get a service from the container
+   */
+  protected async getService<T>(serviceName: string): Promise<T> {
+    return await this.container.resolveAsync<T>(serviceName);
+  }
+
+  /**
+   * Event methods - commented for future
+   */
+  // protected async publishEvent(eventName: string, payload: unknown): Promise<void> {
+  //   const eventBus = await this.container.resolveAsync('eventBus');
+  //   await eventBus.publish(eventName, payload);
+  // }
+
+  /**
+   * Lifecycle hooks - can be overridden by subclasses
+   */
+  async onInit?(): Promise<void>;
+  async onStart?(): Promise<void>;
+  async onStop?(): Promise<void>;
+  async onDispose?(): Promise<void>;
+}
+
+/**
+ * Specialized handler for operations that have scheduled jobs
+ */
+export abstract class ScheduledHandler extends BaseHandler {
+  /**
+   * Get scheduled job configurations for this handler
+   * Override in subclasses to define schedules
+   */
+  getScheduledJobs?(): Array<{
+    operation: string;
+    cronPattern: string;
+    priority?: number;
+    immediately?: boolean;
+    description?: string;
+  }>;
+}