@clduab11/gemini-flow/src/core/github-a2a-comprehensive-bridge.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.

/**
 * GitHub A2A Comprehensive Bridge - Complete integration system for all GitHub operations
 * Unifies all A2A GitHub components into a single, cohesive system for seamless collaboration
 */

import {
  GitHubA2ABridge,
  GitHubA2AConfig,
  A2AAgent,
  GitHubOperation,
} from "./github-a2a-bridge.js";
import { GitHubA2APRSystem, PRReviewRequest } from "./github-a2a-pr-system.js";
import {
  GitHubA2ACrossRepo,
  CrossRepoOperation,
  RepoSyncRequest,
} from "./github-a2a-cross-repo.js";
import {
  GitHubA2AIssueTracker,
  GitHubIssue,
} from "./github-a2a-issue-tracker.js";
import {
  GitHubA2ACICDOrchestrator,
  CICDPipeline,
} from "./github-a2a-cicd-orchestrator.js";
import { GitHubA2AActions, GitHubAction } from "./github-a2a-actions.js";
import { A2AIntegration } from "./a2a-integration.js";
import { A2ASecurityManager } from "./a2a-security-manager.js";
import { EventEmitter } from "events";

export interface ComprehensiveBridgeConfig {
  github: GitHubA2AConfig["github"];
  a2a: GitHubA2AConfig["a2a"] & {
    enable_cross_repo: boolean;
    enable_pr_automation: boolean;
    enable_issue_tracking: boolean;
    enable_cicd_orchestration: boolean;
    enable_actions_spawning: boolean;
  };
  workflows: GitHubA2AConfig["workflows"] & {
    auto_assignment: boolean;
    smart_routing: boolean;
    load_balancing: boolean;
    fault_tolerance: boolean;
  };
  integration: {
    webhook_secret?: string;
    api_rate_limit: number;
    batch_size: number;
    retry_attempts: number;
    health_check_interval: number; // seconds
  };
  monitoring: {
    metrics_enabled: boolean;
    logging_level: "debug" | "info" | "warn" | "error";
    performance_tracking: boolean;
    cost_tracking: boolean;
  };
}

export interface BridgeStatus {
  overall_health: "healthy" | "degraded" | "unhealthy";
  components: {
    bridge: ComponentStatus;
    pr_system: ComponentStatus;
    cross_repo: ComponentStatus;
    issue_tracker: ComponentStatus;
    cicd_orchestrator: ComponentStatus;
    actions: ComponentStatus;
  };
  agents: {
    total: number;
    active: number;
    idle: number;
    failed: number;
  };
  operations: {
    total_active: number;
    by_type: Record<string, number>;
    success_rate: number;
    average_duration: number;
  };
  resources: {
    cpu_usage: number;
    memory_usage: number;
    storage_usage: number;
    network_usage: number;
  };
  costs: {
    current_period: number;
    projected_monthly: number;
    cost_per_operation: number;
  };
}

export interface ComponentStatus {
  status: "active" | "inactive" | "error" | "maintenance";
  uptime: number;
  last_error?: string;
  metrics?: Record<string, number>;
}

export interface OperationRequest {
  type:
    | "pr_review"
    | "issue_triage"
    | "cross_repo_sync"
    | "cicd_pipeline"
    | "action_spawn";
  repository: string;
  data: any;
  priority: "low" | "medium" | "high" | "critical";
  requester: string;
  deadline?: Date;
  requirements?: string[];
}

export interface OperationResult {
  id: string;
  request: OperationRequest;
  status: "success" | "failure" | "partial";
  agents_involved: string[];
  duration: number;
  artifacts: string[];
  metrics: OperationMetrics;
  error?: string;
  completed_at: Date;
}

export interface OperationMetrics {
  agent_efficiency: Record<string, number>;
  resource_utilization: Record<string, number>;
  quality_score: number;
  cost: number;
  user_satisfaction?: number;
}

export interface SmartRoutingConfig {
  load_balancing_strategy:
    | "round_robin"
    | "least_connections"
    | "weighted"
    | "capability_based";
  agent_affinity: boolean;
  repository_affinity: boolean;
  workload_prediction: boolean;
  adaptive_routing: boolean;
}

export interface AgentPool {
  id: string;
  name: string;
  agents: A2AAgent[];
  specialization: string[];
  capacity: {
    current: number;
    maximum: number;
    utilization: number;
  };
  performance: {
    average_task_time: number;
    success_rate: number;
    quality_score: number;
  };
  scaling: {
    auto_scaling: boolean;
    min_size: number;
    max_size: number;
    scale_up_threshold: number;
    scale_down_threshold: number;
  };
}

export class GitHubA2AComprehensiveBridge extends EventEmitter {
  private config: ComprehensiveBridgeConfig;

  // Core components
  private bridge: GitHubA2ABridge;
  private prSystem: GitHubA2APRSystem;
  private crossRepo: GitHubA2ACrossRepo;
  private issueTracker: GitHubA2AIssueTracker;
  private cicdOrchestrator: GitHubA2ACICDOrchestrator;
  private actions: GitHubA2AActions;

  // Supporting systems
  private a2aIntegration: A2AIntegration;
  private securityManager: A2ASecurityManager;

  // State management
  private agentPools: Map<string, AgentPool> = new Map();
  private activeOperations: Map<string, OperationResult> = new Map();
  private routingConfig: SmartRoutingConfig;
  private healthMonitor: HealthMonitor;
  private metricsCollector: MetricsCollector;

  // Performance tracking
  private operationHistory: OperationResult[] = [];
  private performanceMetrics: Map<string, any> = new Map();
  private costTracker: CostTracker;

  constructor(config: ComprehensiveBridgeConfig) {
    super();
    this.config = config;

    // Initialize routing configuration
    this.routingConfig = {
      load_balancing_strategy: "capability_based",
      agent_affinity: true,
      repository_affinity: true,
      workload_prediction: true,
      adaptive_routing: true,
    };

    this.healthMonitor = new HealthMonitor(this);
    this.metricsCollector = new MetricsCollector(this);
    this.costTracker = new CostTracker();

    this.setupEventHandlers();
  }

  /**
   * Initialize the comprehensive bridge system
   */
  async initialize(): Promise<void> {
    try {
      console.log("🚀 Initializing GitHub A2A Comprehensive Bridge...");

      // Initialize supporting systems first
      this.a2aIntegration = new A2AIntegration();
      await this.a2aIntegration.initialize();

      this.securityManager = new A2ASecurityManager();
      await this.securityManager.initialize();

      // Initialize core bridge
      this.bridge = new GitHubA2ABridge(this.config);
      await this.bridge.initialize();

      // Initialize specialized systems based on configuration
      await this.initializeSpecializedSystems();

      // Setup agent pools
      await this.initializeAgentPools();

      // Start monitoring and metrics collection
      await this.startMonitoring();

      // Setup API endpoints and webhooks
      await this.setupAPIEndpoints();

      this.emit("bridge-initialized", this.getStatus());

      console.log(
        "✅ GitHub A2A Comprehensive Bridge initialized successfully",
      );
    } catch (error) {
      console.error("❌ Failed to initialize Comprehensive Bridge:", error);
      throw error;
    }
  }

  /**
   * Initialize specialized systems based on configuration
   */
  private async initializeSpecializedSystems(): Promise<void> {
    if (this.config.a2a.enable_cross_repo) {
      this.crossRepo = new GitHubA2ACrossRepo(this.bridge);
      await this.crossRepo.initialize();
      console.log("✅ Cross-repository system initialized");
    }

    if (this.config.a2a.enable_pr_automation) {
      this.prSystem = new GitHubA2APRSystem(this.bridge);
      console.log("✅ PR automation system initialized");
    }

    if (this.config.a2a.enable_issue_tracking) {
      this.issueTracker = new GitHubA2AIssueTracker(
        this.bridge,
        this.crossRepo,
      );
      console.log("✅ Issue tracking system initialized");
    }

    if (this.config.a2a.enable_cicd_orchestration) {
      this.cicdOrchestrator = new GitHubA2ACICDOrchestrator(
        this.bridge,
        this.crossRepo,
      );
      console.log("✅ CI/CD orchestration system initialized");
    }

    if (this.config.a2a.enable_actions_spawning) {
      this.actions = new GitHubA2AActions(
        this.bridge,
        this.crossRepo,
        this.cicdOrchestrator,
      );
      await this.actions.initialize();
      console.log("✅ GitHub Actions spawning system initialized");
    }
  }

  /**
   * Initialize and manage agent pools
   */
  private async initializeAgentPools(): Promise<void> {
    // Create specialized agent pools
    const poolConfigs = [
      {
        id: "pr-review-pool",
        name: "PR Review Specialists",
        specialization: [
          "code-review",
          "security-analysis",
          "performance-review",
        ],
        minSize: 2,
        maxSize: 10,
      },
      {
        id: "issue-triage-pool",
        name: "Issue Triage Specialists",
        specialization: [
          "issue-analysis",
          "requirement-analysis",
          "priority-assignment",
        ],
        minSize: 1,
        maxSize: 5,
      },
      {
        id: "cicd-pool",
        name: "CI/CD Specialists",
        specialization: ["build-automation", "testing", "deployment"],
        minSize: 2,
        maxSize: 8,
      },
      {
        id: "security-pool",
        name: "Security Specialists",
        specialization: [
          "vulnerability-scanning",
          "compliance-checking",
          "security-auditing",
        ],
        minSize: 1,
        maxSize: 3,
      },
      {
        id: "coordination-pool",
        name: "Coordination Specialists",
        specialization: [
          "workflow-orchestration",
          "task-delegation",
          "conflict-resolution",
        ],
        minSize: 1,
        maxSize: 4,
      },
    ];

    for (const poolConfig of poolConfigs) {
      await this.createAgentPool(poolConfig);
    }
  }

  /**
   * Create and initialize an agent pool
   */
  private async createAgentPool(config: any): Promise<void> {
    const pool: AgentPool = {
      id: config.id,
      name: config.name,
      agents: [],
      specialization: config.specialization,
      capacity: {
        current: 0,
        maximum: config.maxSize,
        utilization: 0,
      },
      performance: {
        average_task_time: 0,
        success_rate: 0,
        quality_score: 0,
      },
      scaling: {
        auto_scaling: true,
        min_size: config.minSize,
        max_size: config.maxSize,
        scale_up_threshold: 80,
        scale_down_threshold: 20,
      },
    };

    // Create initial agents
    for (let i = 0; i < config.minSize; i++) {
      const agent = await this.createPoolAgent(pool, config.specialization);
      if (agent) {
        pool.agents.push(agent);
        pool.capacity.current++;
      }
    }

    this.agentPools.set(config.id, pool);
    this.emit("agent-pool-created", { poolId: config.id, pool });
  }

  /**
   * Create an agent for a specific pool
   */
  private async createPoolAgent(
    pool: AgentPool,
    specializations: string[],
  ): Promise<A2AAgent | null> {
    try {
      const agentId = `${pool.id}-agent-${Date.now()}-${Math.random().toString(36).substr(2, 5)}`;

      // Determine agent type based on specializations
      const agentType = this.determineAgentType(specializations);

      const agent: A2AAgent = {
        id: agentId,
        type: agentType,
        capabilities: specializations,
        assigned_tasks: [],
        status: "idle",
        metrics: {
          tasks_completed: 0,
          reviews_performed: 0,
          issues_resolved: 0,
          uptime: Date.now(),
        },
      };

      // Register with A2A system
      await this.a2aIntegration.registerAgent(agentId, specializations);

      return agent;
    } catch (error) {
      console.error(`Failed to create agent for pool ${pool.id}:`, error);
      return null;
    }
  }

  /**
   * Process incoming operation request with smart routing
   */
  async processOperation(request: OperationRequest): Promise<string> {
    const operationId = `op-${request.type}-${Date.now()}`;

    try {
      // Validate request
      await this.validateOperationRequest(request);

      // Create operation result tracker
      const result: OperationResult = {
        id: operationId,
        request,
        status: "success", // Will be updated based on actual result
        agents_involved: [],
        duration: 0,
        artifacts: [],
        metrics: {
          agent_efficiency: {},
          resource_utilization: {},
          quality_score: 0,
          cost: 0,
        },
        completed_at: new Date(),
      };

      this.activeOperations.set(operationId, result);

      // Route to appropriate system
      const startTime = Date.now();
      await this.routeOperation(request, result);
      result.duration = Date.now() - startTime;

      // Update metrics and costs
      await this.updateOperationMetrics(result);

      // Store in history
      this.operationHistory.push(result);
      if (this.operationHistory.length > 1000) {
        this.operationHistory = this.operationHistory.slice(-1000);
      }

      this.emit("operation-completed", result);

      return operationId;
    } catch (error) {
      const result = this.activeOperations.get(operationId);
      if (result) {
        result.status = "failure";
        result.error = String(error);
        result.completed_at = new Date();
      }

      this.emit("operation-failed", { operationId, error });
      throw error;
    }
  }

  /**
   * Route operation to appropriate specialized system
   */
  private async routeOperation(
    request: OperationRequest,
    result: OperationResult,
  ): Promise<void> {
    switch (request.type) {
      case "pr_review":
        if (this.prSystem) {
          const sessionId = await this.prSystem.processPullRequest(
            request.data as PRReviewRequest,
          );
          result.artifacts.push(sessionId);
          result.agents_involved = await this.getPRAgents(sessionId);
        }
        break;

      case "issue_triage":
        if (this.issueTracker) {
          const sessionId = await this.issueTracker.processIssue(
            request.data as GitHubIssue,
          );
          result.artifacts.push(sessionId);
          result.agents_involved = await this.getIssueAgents(sessionId);
        }
        break;

      case "cross_repo_sync":
        if (this.crossRepo) {
          const operationId = await this.crossRepo.synchronizeRepositories(
            request.data as RepoSyncRequest,
          );
          result.artifacts.push(operationId);
          result.agents_involved = await this.getCrossRepoAgents(operationId);
        }
        break;

      case "cicd_pipeline":
        if (this.cicdOrchestrator) {
          const pipelineId = await this.cicdOrchestrator.createPipeline(
            request.data as Omit<CICDPipeline, "id" | "created_at" | "metrics">,
          );
          const executionId = await this.cicdOrchestrator.triggerPipeline(
            pipelineId,
            { trigger: "api" },
          );
          result.artifacts.push(executionId);
          result.agents_involved = await this.getCICDAgents(executionId);
        }
        break;

      case "action_spawn":
        if (this.actions) {
          const actionId = await this.actions.createAction(
            request.data as Omit<GitHubAction, "id" | "created_at" | "metrics">,
          );
          result.artifacts.push(actionId);
          result.agents_involved = await this.getActionAgents(actionId);
        }
        break;

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

  /**
   * Smart agent selection based on current workload and capabilities
   */
  async selectOptimalAgents(
    requirements: string[],
    count: number = 1,
  ): Promise<A2AAgent[]> {
    const candidateAgents: A2AAgent[] = [];

    // Collect agents from all pools that match requirements
    for (const pool of this.agentPools.values()) {
      const matchingAgents = pool.agents.filter(
        (agent) =>
          requirements.some((req) => agent.capabilities.includes(req)) &&
          agent.status === "idle",
      );
      candidateAgents.push(...matchingAgents);
    }

    if (candidateAgents.length === 0) {
      throw new Error("No suitable agents available");
    }

    // Score agents based on multiple factors
    const scoredAgents = candidateAgents.map((agent) => ({
      agent,
      score: this.calculateAgentScore(agent, requirements),
    }));

    // Sort by score (highest first)
    scoredAgents.sort((a, b) => b.score - a.score);

    // Return top agents
    return scoredAgents.slice(0, count).map((item) => item.agent);
  }

  /**
   * Calculate agent score for selection
   */
  private calculateAgentScore(agent: A2AAgent, requirements: string[]): number {
    let score = 0;

    // Capability match (40% weight)
    const matchedCapabilities = requirements.filter((req) =>
      agent.capabilities.includes(req),
    ).length;
    const capabilityScore = (matchedCapabilities / requirements.length) * 40;
    score += capabilityScore;

    // Performance history (30% weight)
    const successRate =
      agent.metrics.tasks_completed /
      Math.max(1, agent.metrics.tasks_completed);
    score += successRate * 30;

    // Current workload (20% weight) - lower is better
    const workloadScore = Math.max(0, 20 - agent.assigned_tasks.length * 5);
    score += workloadScore;

    // Uptime (10% weight)
    const uptimeHours = (Date.now() - agent.metrics.uptime) / (1000 * 60 * 60);
    const uptimeScore = Math.min(uptimeHours / 24, 1) * 10;
    score += uptimeScore;

    return score;
  }

  /**
   * Auto-scale agent pools based on demand
   */
  async autoScaleAgentPools(): Promise<void> {
    for (const [poolId, pool] of this.agentPools) {
      if (!pool.scaling.auto_scaling) continue;

      const utilization = this.calculatePoolUtilization(pool);

      // Scale up if utilization is high
      if (
        utilization > pool.scaling.scale_up_threshold &&
        pool.capacity.current < pool.scaling.max_size
      ) {
        const newAgent = await this.createPoolAgent(pool, pool.specialization);
        if (newAgent) {
          pool.agents.push(newAgent);
          pool.capacity.current++;
          this.emit("agent-pool-scaled-up", {
            poolId,
            newAgentId: newAgent.id,
          });
        }
      }

      // Scale down if utilization is low
      else if (
        utilization < pool.scaling.scale_down_threshold &&
        pool.capacity.current > pool.scaling.min_size
      ) {
        const idleAgent = pool.agents.find((agent) => agent.status === "idle");
        if (idleAgent) {
          await this.removeAgentFromPool(poolId, idleAgent.id);
          this.emit("agent-pool-scaled-down", {
            poolId,
            removedAgentId: idleAgent.id,
          });
        }
      }

      // Update utilization
      pool.capacity.utilization = utilization;
    }
  }

  /**
   * Calculate pool utilization percentage
   */
  private calculatePoolUtilization(pool: AgentPool): number {
    if (pool.agents.length === 0) return 0;

    const busyAgents = pool.agents.filter(
      (agent) => agent.status === "working",
    ).length;
    return (busyAgents / pool.agents.length) * 100;
  }

  /**
   * Remove agent from pool
   */
  private async removeAgentFromPool(
    poolId: string,
    agentId: string,
  ): Promise<void> {
    const pool = this.agentPools.get(poolId);
    if (!pool) return;

    const agentIndex = pool.agents.findIndex((agent) => agent.id === agentId);
    if (agentIndex >= 0) {
      const agent = pool.agents[agentIndex];

      // Gracefully shutdown agent
      try {
        await this.a2aIntegration.executeTask(agentId, {
          type: "shutdown",
          graceful: true,
        });
      } catch (error) {
        console.warn(`Failed to gracefully shutdown agent ${agentId}:`, error);
      }

      // Remove from pool
      pool.agents.splice(agentIndex, 1);
      pool.capacity.current--;
    }
  }

  /**
   * Start monitoring and health checks
   */
  private async startMonitoring(): Promise<void> {
    // Start health monitoring
    await this.healthMonitor.start();

    // Start metrics collection
    await this.metricsCollector.start();

    // Start cost tracking
    await this.costTracker.start();

    // Start auto-scaling
    setInterval(async () => {
      await this.autoScaleAgentPools();
    }, 60000); // Every minute

    // Start performance optimization
    setInterval(async () => {
      await this.optimizePerformance();
    }, 300000); // Every 5 minutes
  }

  /**
   * Optimize system performance
   */
  private async optimizePerformance(): Promise<void> {
    // Analyze recent operation performance
    const recentOperations = this.operationHistory.slice(-100);

    // Identify bottlenecks
    const bottlenecks = this.identifyBottlenecks(recentOperations);

    // Apply optimizations
    for (const bottleneck of bottlenecks) {
      await this.applyOptimization(bottleneck);
    }

    this.emit("performance-optimized", {
      bottlenecks,
      optimizations: bottlenecks.length,
    });
  }

  /**
   * Setup API endpoints for external integration
   */
  private async setupAPIEndpoints(): Promise<void> {
    // In a real implementation, this would setup REST/GraphQL endpoints
    console.log("API endpoints configured for bridge access");
  }

  /**
   * Get comprehensive bridge status
   */
  getStatus(): BridgeStatus {
    const componentStatuses = {
      bridge: this.getComponentStatus(this.bridge),
      pr_system: this.getComponentStatus(this.prSystem),
      cross_repo: this.getComponentStatus(this.crossRepo),
      issue_tracker: this.getComponentStatus(this.issueTracker),
      cicd_orchestrator: this.getComponentStatus(this.cicdOrchestrator),
      actions: this.getComponentStatus(this.actions),
    };

    const allAgents = Array.from(this.agentPools.values()).flatMap(
      (pool) => pool.agents,
    );
    const agentStats = {
      total: allAgents.length,
      active: allAgents.filter((a) => a.status === "working").length,
      idle: allAgents.filter((a) => a.status === "idle").length,
      failed: allAgents.filter((a) => a.status === "blocked").length,
    };

    const activeOps = Array.from(this.activeOperations.values());
    const operationStats = {
      total_active: activeOps.length,
      by_type: this.groupOperationsByType(activeOps),
      success_rate: this.calculateSuccessRate(),
      average_duration: this.calculateAverageDuration(),
    };

    const overallHealth = this.calculateOverallHealth(componentStatuses);

    return {
      overall_health: overallHealth,
      components: componentStatuses,
      agents: agentStats,
      operations: operationStats,
      resources: this.getResourceUsage(),
      costs: this.getCostMetrics(),
    };
  }

  // Utility methods for status calculation
  private getComponentStatus(component: any): ComponentStatus {
    if (!component) {
      return { status: "inactive", uptime: 0 };
    }

    // In a real implementation, this would check actual component health
    return {
      status: "active",
      uptime: Date.now() - (component.startTime || Date.now()),
      metrics: component.getStatus ? component.getStatus() : {},
    };
  }

  private calculateOverallHealth(
    components: any,
  ): "healthy" | "degraded" | "unhealthy" {
    const activeComponents = Object.values(components).filter(
      (c: any) => c.status === "active",
    ).length;
    const totalComponents = Object.keys(components).length;

    const healthRatio = activeComponents / totalComponents;

    if (healthRatio >= 0.9) return "healthy";
    if (healthRatio >= 0.7) return "degraded";
    return "unhealthy";
  }

  private groupOperationsByType(
    operations: OperationResult[],
  ): Record<string, number> {
    return operations.reduce(
      (acc, op) => {
        acc[op.request.type] = (acc[op.request.type] || 0) + 1;
        return acc;
      },
      {} as Record<string, number>,
    );
  }

  private calculateSuccessRate(): number {
    if (this.operationHistory.length === 0) return 100;

    const successful = this.operationHistory.filter(
      (op) => op.status === "success",
    ).length;
    return (successful / this.operationHistory.length) * 100;
  }

  private calculateAverageDuration(): number {
    if (this.operationHistory.length === 0) return 0;

    const totalDuration = this.operationHistory.reduce(
      (sum, op) => sum + op.duration,
      0,
    );
    return totalDuration / this.operationHistory.length;
  }

  private getResourceUsage(): any {
    // Mock resource usage - in real implementation, would query actual metrics
    return {
      cpu_usage: 45,
      memory_usage: 60,
      storage_usage: 30,
      network_usage: 25,
    };
  }

  private getCostMetrics(): any {
    return this.costTracker.getCurrentMetrics();
  }

  // Additional utility methods
  private determineAgentType(specializations: string[]): A2AAgent["type"] {
    if (specializations.includes("code-review")) return "reviewer";
    if (specializations.includes("security-analysis")) return "security";
    if (specializations.includes("issue-analysis")) return "analyst";
    if (specializations.includes("workflow-orchestration"))
      return "coordinator";
    if (specializations.includes("testing")) return "tester";
    if (specializations.includes("system-design")) return "architect";
    return "coordinator";
  }

  private async validateOperationRequest(
    request: OperationRequest,
  ): Promise<void> {
    if (!request.type || !request.repository || !request.data) {
      throw new Error("Invalid operation request: missing required fields");
    }

    // Additional validation based on operation type
    switch (request.type) {
      case "pr_review":
        if (!request.data.pr_number) {
          throw new Error("PR review request missing pr_number");
        }
        break;
      case "issue_triage":
        if (!request.data.number) {
          throw new Error("Issue triage request missing issue number");
        }
        break;
    }
  }

  private async updateOperationMetrics(result: OperationResult): Promise<void> {
    // Calculate quality score based on multiple factors
    result.metrics.quality_score = this.calculateQualityScore(result);

    // Calculate cost
    result.metrics.cost = await this.costTracker.calculateOperationCost(result);

    // Update agent efficiency metrics
    for (const agentId of result.agents_involved) {
      result.metrics.agent_efficiency[agentId] =
        await this.calculateAgentEfficiency(agentId, result);
    }
  }

  private calculateQualityScore(result: OperationResult): number {
    let score = 100;

    // Deduct points for failures
    if (result.status === "failure") score -= 50;
    if (result.status === "partial") score -= 25;

    // Deduct points for long duration
    if (result.duration > 300000) score -= 10; // 5 minutes

    // Add points for artifacts generated
    score += Math.min(result.artifacts.length * 5, 20);

    return Math.max(0, Math.min(100, score));
  }

  private async calculateAgentEfficiency(
    agentId: string,
    result: OperationResult,
  ): Promise<number> {
    // Find agent in pools
    let agent: A2AAgent | undefined;
    for (const pool of this.agentPools.values()) {
      agent = pool.agents.find((a) => a.id === agentId);
      if (agent) break;
    }

    if (!agent) return 0;

    // Calculate efficiency based on task completion rate and time
    const baseEfficiency =
      agent.metrics.tasks_completed /
      Math.max(1, agent.metrics.tasks_completed + 1);
    const timeEfficiency = Math.max(0, 1 - result.duration / 600000); // Penalty for operations > 10 minutes

    return ((baseEfficiency + timeEfficiency) / 2) * 100;
  }

  private identifyBottlenecks(operations: OperationResult[]): string[] {
    const bottlenecks: string[] = [];

    // Analyze average durations by type
    const durationsByType = operations.reduce(
      (acc, op) => {
        if (!acc[op.request.type]) acc[op.request.type] = [];
        acc[op.request.type].push(op.duration);
        return acc;
      },
      {} as Record<string, number[]>,
    );

    for (const [type, durations] of Object.entries(durationsByType)) {
      const avgDuration =
        durations.reduce((sum, d) => sum + d, 0) / durations.length;
      if (avgDuration > 120000) {
        // 2 minutes
        bottlenecks.push(`slow_${type}_operations`);
      }
    }

    // Check agent pool utilization
    for (const [poolId, pool] of this.agentPools) {
      if (pool.capacity.utilization > 90) {
        bottlenecks.push(`high_utilization_${poolId}`);
      }
    }

    return bottlenecks;
  }

  private async applyOptimization(bottleneck: string): Promise<void> {
    if (bottleneck.startsWith("slow_")) {
      // Optimization for slow operations - could include caching, parallelization, etc.
      console.log(`Applying optimization for ${bottleneck}`);
    } else if (bottleneck.startsWith("high_utilization_")) {
      // Scale up the overutilized pool
      const poolId = bottleneck.replace("high_utilization_", "");
      const pool = this.agentPools.get(poolId);
      if (pool && pool.capacity.current < pool.scaling.max_size) {
        const newAgent = await this.createPoolAgent(pool, pool.specialization);
        if (newAgent) {
          pool.agents.push(newAgent);
          pool.capacity.current++;
        }
      }
    }
  }

  // Methods to get agents from different systems (mocked for now)
  private async getPRAgents(sessionId: string): Promise<string[]> {
    return [`pr-reviewer-${sessionId}`, `pr-tester-${sessionId}`];
  }

  private async getIssueAgents(sessionId: string): Promise<string[]> {
    return [`issue-analyst-${sessionId}`];
  }

  private async getCrossRepoAgents(operationId: string): Promise<string[]> {
    return [`sync-coordinator-${operationId}`];
  }

  private async getCICDAgents(executionId: string): Promise<string[]> {
    return [`cicd-coordinator-${executionId}`, `cicd-tester-${executionId}`];
  }

  private async getActionAgents(actionId: string): Promise<string[]> {
    return [`action-spawner-${actionId}`];
  }

  private setupEventHandlers(): void {
    this.on("component-failure", (data) => {
      console.error(`Component failure detected: ${data.component}`);
      // Implement failover logic
    });

    this.on("resource-threshold-exceeded", (data) => {
      console.warn(`Resource threshold exceeded: ${data.resource}`);
      // Implement resource management
    });

    this.on("cost-alert", (data) => {
      console.warn(`Cost alert: ${data.message}`);
      // Implement cost optimization
    });
  }

  /**
   * Graceful shutdown of the comprehensive bridge
   */
  async shutdown(): Promise<void> {
    console.log("🛑 Shutting down GitHub A2A Comprehensive Bridge...");

    // Stop monitoring
    await this.healthMonitor.stop();
    await this.metricsCollector.stop();
    await this.costTracker.stop();

    // Shutdown all agent pools
    for (const [poolId, pool] of this.agentPools) {
      for (const agent of pool.agents) {
        await this.removeAgentFromPool(poolId, agent.id);
      }
    }

    // Shutdown specialized systems
    if (this.actions) await this.actions.cleanup();
    if (this.cicdOrchestrator) await this.cicdOrchestrator.cleanup();
    if (this.issueTracker) await this.issueTracker.cleanup();
    if (this.crossRepo) await this.crossRepo.cleanup();
    if (this.bridge) await this.bridge.cleanup();

    // Cleanup A2A integration
    await this.a2aIntegration.cleanup();

    this.emit("bridge-shutdown");
    console.log("✅ GitHub A2A Comprehensive Bridge shutdown complete");
  }
}

// Supporting classes
class HealthMonitor {
  constructor(private bridge: GitHubA2AComprehensiveBridge) {}

  async start(): Promise<void> {
    console.log("Health monitor started");
  }

  async stop(): Promise<void> {
    console.log("Health monitor stopped");
  }
}

class MetricsCollector {
  constructor(private bridge: GitHubA2AComprehensiveBridge) {}

  async start(): Promise<void> {
    console.log("Metrics collector started");
  }

  async stop(): Promise<void> {
    console.log("Metrics collector stopped");
  }
}

class CostTracker {
  private currentCosts = {
    current_period: 0,
    projected_monthly: 0,
    cost_per_operation: 0,
  };

  async start(): Promise<void> {
    console.log("Cost tracker started");
  }

  async stop(): Promise<void> {
    console.log("Cost tracker stopped");
  }

  getCurrentMetrics(): any {
    return this.currentCosts;
  }

  async calculateOperationCost(result: OperationResult): Promise<number> {
    // Mock cost calculation
    return result.duration * 0.0001 + result.agents_involved.length * 0.01;
  }
}