@clduab11/gemini-flow/src/core/batch-tool.ts

Revolutionary AI agent swarm coordination platform with Google Services integration, multimedia processing, and production-ready monitoring. Features 8 Google AI services, quantum computing capabilities, and enterprise-grade security.

/**
 * BatchTool - Parallel Execution Engine
 *
 * Implements the GOLDEN RULE: "1 MESSAGE = ALL RELATED OPERATIONS"
 * Enables <100ms agent spawn time through intelligent batching
 */

import { EventEmitter } from "events";
import { Worker } from "worker_threads";
import { Logger } from "../utils/logger.js";
import { ResourcePool } from "./resource-pool.js";
import { DependencyGraph } from "./dependency-graph.js";
import { PerformanceMonitor } from "../monitoring/performance-monitor.js";

export interface BatchOperation {
  id: string;
  type: "agent_spawn" | "task_execute" | "memory_op" | "file_op" | "command";
  operation: any;
  dependencies?: string[];
  priority?: number;
  timeout?: number;
}

export interface BatchResult {
  id: string;
  success: boolean;
  result?: any;
  error?: Error;
  duration: number;
  metadata?: any;
}

export class BatchTool extends EventEmitter {
  private workers: Worker[] = [];
  private resourcePool: ResourcePool;
  private dependencyGraph: DependencyGraph;
  private performanceMonitor: PerformanceMonitor;
  private logger: Logger;

  // Configuration
  private config = {
    maxWorkers: 8,
    maxConcurrency: 64,
    spawnTimeout: 100, // Target: <100ms
    operationTimeout: 30000,
    retryAttempts: 3,
    batchSize: 50,
  };

  // Metrics
  private metrics = {
    totalBatches: 0,
    totalOperations: 0,
    successfulOps: 0,
    failedOps: 0,
    avgSpawnTime: 0,
    avgBatchTime: 0,
  };

  constructor(config?: Partial<typeof BatchTool.prototype.config>) {
    super();
    this.config = { ...this.config, ...config };
    this.resourcePool = new ResourcePool(this.config.maxConcurrency);
    this.dependencyGraph = new DependencyGraph();
    this.performanceMonitor = new PerformanceMonitor();
    this.logger = new Logger("BatchTool");

    this.initializeWorkers();
  }

  /**
   * Execute batch of operations in parallel
   */
  async executeBatch(operations: BatchOperation[]): Promise<BatchResult[]> {
    const batchId = `batch_${Date.now()}_${Math.random().toString(36).substr(2, 9)}`;
    const startTime = Date.now();

    this.logger.info(`Starting batch execution`, {
      batchId,
      operationCount: operations.length,
    });

    this.metrics.totalBatches++;
    this.metrics.totalOperations += operations.length;

    try {
      // Build dependency graph
      const graph = this.buildDependencyGraph(operations);

      // Get execution order
      const executionPlan = graph.getExecutionOrder();

      // Execute operations in parallel stages
      const results: BatchResult[] = [];

      for (const stage of executionPlan) {
        const stageResults = await this.executeStage(stage, operations);
        results.push(...stageResults);
      }

      // Update metrics
      const batchDuration = Date.now() - startTime;
      this.updateMetrics(results, batchDuration);

      this.logger.info(`Batch execution completed`, {
        batchId,
        duration: batchDuration,
        successRate: this.calculateSuccessRate(results),
      });

      return results;
    } catch (error) {
      this.logger.error("Batch execution failed", error);
      throw error;
    }
  }

  /**
   * Execute a single stage of operations in parallel
   */
  private async executeStage(
    operationIds: string[],
    operations: BatchOperation[],
  ): Promise<BatchResult[]> {
    const stageOps = operations.filter((op) => operationIds.includes(op.id));

    // Special optimization for agent spawning
    const agentOps = stageOps.filter((op) => op.type === "agent_spawn");
    if (agentOps.length > 0) {
      return this.executeAgentSpawnBatch(agentOps);
    }

    // Execute other operations in parallel
    const promises = stageOps.map((op) => this.executeOperation(op));
    return Promise.all(promises);
  }

  /**
   * Optimized agent spawning for <100ms target
   */
  private async executeAgentSpawnBatch(
    operations: BatchOperation[],
  ): Promise<BatchResult[]> {
    const startTime = Date.now();

    // Pre-allocate resources
    const resources = await this.resourcePool.allocateBatch(operations.length);

    // Spawn agents in parallel using worker threads
    const spawnPromises = operations.map((op, index) =>
      this.spawnAgentOptimized(op, resources[index]),
    );

    const results = await Promise.all(spawnPromises);

    const spawnTime = Date.now() - startTime;
    this.logger.debug(`Agent spawn batch completed`, {
      count: operations.length,
      duration: spawnTime,
      avgPerAgent: spawnTime / operations.length,
    });

    return results;
  }

  /**
   * Execute single operation with retry logic
   */
  private async executeOperation(
    operation: BatchOperation,
  ): Promise<BatchResult> {
    const startTime = Date.now();
    let lastError: Error | undefined;

    for (let attempt = 0; attempt < this.config.retryAttempts; attempt++) {
      try {
        const result = await this.performOperation(operation);

        return {
          id: operation.id,
          success: true,
          result,
          duration: Date.now() - startTime,
        };
      } catch (error: any) {
        lastError = error;
        this.logger.warn(`Operation failed, attempt ${attempt + 1}`, {
          operationId: operation.id,
          error: error.message,
        });

        if (attempt < this.config.retryAttempts - 1) {
          await this.delay(Math.pow(2, attempt) * 100); // Exponential backoff
        }
      }
    }

    return {
      id: operation.id,
      success: false,
      error: lastError,
      duration: Date.now() - startTime,
    };
  }

  /**
   * Perform the actual operation based on type
   */
  private async performOperation(operation: BatchOperation): Promise<any> {
    switch (operation.type) {
      case "agent_spawn":
        return this.spawnAgent(operation.operation);

      case "task_execute":
        return this.executeTask(operation.operation);

      case "memory_op":
        return this.executeMemoryOp(operation.operation);

      case "file_op":
        return this.executeFileOp(operation.operation);

      case "command":
        return this.executeCommand(operation.operation);

      default:
        throw new Error(`Unknown operation type: ${operation.type}`);
    }
  }

  /**
   * Optimized agent spawning using pre-allocated resources
   */
  private async spawnAgentOptimized(
    operation: BatchOperation,
    resource: any,
  ): Promise<BatchResult> {
    const startTime = Date.now();

    try {
      // Use worker thread for agent initialization
      const worker = this.getAvailableWorker();

      const result = await new Promise((resolve, reject) => {
        const timeout = setTimeout(() => {
          reject(new Error("Agent spawn timeout"));
        }, this.config.spawnTimeout);

        worker.postMessage({
          type: "spawn_agent",
          data: operation.operation,
          resource,
        });

        worker.once("message", (msg) => {
          clearTimeout(timeout);
          if (msg.error) {
            reject(new Error(msg.error));
          } else {
            resolve(msg.result);
          }
        });
      });

      const duration = Date.now() - startTime;

      // Track spawn time for optimization
      this.performanceMonitor.recordMetric("agent_spawn_time", duration);

      return {
        id: operation.id,
        success: true,
        result,
        duration,
        metadata: { optimized: true },
      };
    } catch (error: any) {
      return {
        id: operation.id,
        success: false,
        error,
        duration: Date.now() - startTime,
      };
    }
  }

  /**
   * Build dependency graph for execution planning
   */
  private buildDependencyGraph(operations: BatchOperation[]): DependencyGraph {
    const graph = new DependencyGraph();

    // Add all operations as nodes
    operations.forEach((op) => {
      graph.addNode(op.id, op);
    });

    // Add dependencies
    operations.forEach((op) => {
      if (op.dependencies) {
        op.dependencies.forEach((dep) => {
          graph.addDependency(op.id, dep);
        });
      }
    });

    return graph;
  }

  /**
   * Initialize worker threads for parallel execution
   */
  private initializeWorkers() {
    for (let i = 0; i < this.config.maxWorkers; i++) {
      const worker = new Worker("./worker.js");
      worker.on("error", (error) => {
        this.logger.error("Worker error", error);
      });
      this.workers.push(worker);
    }
  }

  /**
   * Get available worker thread
   */
  private getAvailableWorker(): Worker {
    // Simple round-robin for now
    return this.workers[Math.floor(Math.random() * this.workers.length)];
  }

  /**
   * Update metrics after batch execution
   */
  private updateMetrics(results: BatchResult[], batchDuration: number) {
    const successful = results.filter((r) => r.success).length;
    const agentSpawns = results.filter(
      (r) => r.metadata?.optimized && r.success,
    );

    this.metrics.successfulOps += successful;
    this.metrics.failedOps += results.length - successful;

    if (agentSpawns.length > 0) {
      const avgSpawn =
        agentSpawns.reduce((sum, r) => sum + r.duration, 0) /
        agentSpawns.length;
      this.metrics.avgSpawnTime =
        (this.metrics.avgSpawnTime * (this.metrics.totalBatches - 1) +
          avgSpawn) /
        this.metrics.totalBatches;
    }

    this.metrics.avgBatchTime =
      (this.metrics.avgBatchTime * (this.metrics.totalBatches - 1) +
        batchDuration) /
      this.metrics.totalBatches;
  }

  /**
   * Calculate success rate for batch
   */
  private calculateSuccessRate(results: BatchResult[]): number {
    const successful = results.filter((r) => r.success).length;
    return (successful / results.length) * 100;
  }

  /**
   * Delay utility
   */
  private delay(ms: number): Promise<void> {
    return new Promise((resolve) => setTimeout(resolve, ms));
  }

  /**
   * Get batch tool metrics
   */
  getMetrics() {
    return {
      ...this.metrics,
      successRate:
        (this.metrics.successfulOps / this.metrics.totalOperations) * 100,
      avgSpawnTimeMs: this.metrics.avgSpawnTime,
      avgBatchTimeMs: this.metrics.avgBatchTime,
      throughput:
        this.metrics.totalOperations /
        ((this.metrics.avgBatchTime * this.metrics.totalBatches) / 1000),
    };
  }

  /**
   * Cleanup resources
   */
  async cleanup() {
    // Terminate workers
    await Promise.all(this.workers.map((w) => w.terminate()));
    this.workers = [];

    // Cleanup resource pool
    await this.resourcePool.cleanup();

    this.logger.info("BatchTool cleanup completed");
  }

  // Placeholder methods for different operation types
  private async spawnAgent(_data: any): Promise<any> {
    // Implementation delegated to agent manager
    throw new Error("Not implemented - use spawnAgentOptimized");
  }

  private async executeTask(data: any): Promise<any> {
    // Implementation for task execution
    return { taskId: data.id, status: "completed" };
  }

  private async executeMemoryOp(data: any): Promise<any> {
    // Implementation for memory operations
    return { key: data.key, stored: true };
  }

  private async executeFileOp(data: any): Promise<any> {
    // Implementation for file operations
    return { file: data.path, operation: data.type };
  }

  private async executeCommand(data: any): Promise<any> {
    // Implementation for command execution
    return { command: data.cmd, exitCode: 0 };
  }
}