@clduab11/gemini-flow/src/core/github-a2a-integration-manager.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 Integration Manager - Central coordination system for all GitHub A2A components
 * Provides unified API and management interface for the complete GitHub A2A ecosystem
 */

import {
  GitHubA2AComprehensiveBridge,
  ComprehensiveBridgeConfig,
  OperationRequest,
} from "./github-a2a-comprehensive-bridge.js";
import { EventEmitter } from "events";

export interface IntegrationConfig {
  bridge: ComprehensiveBridgeConfig;
  deployment: {
    environment: "development" | "staging" | "production";
    scaling_mode: "manual" | "auto" | "hybrid";
    high_availability: boolean;
    multi_region: boolean;
  };
  features: {
    enable_dashboard: boolean;
    enable_api: boolean;
    enable_cli: boolean;
    enable_webhooks: boolean;
    enable_metrics: boolean;
  };
  integrations: {
    slack?: SlackIntegration;
    discord?: DiscordIntegration;
    teams?: TeamsIntegration;
    email?: EmailIntegration;
    pagerduty?: PagerDutyIntegration;
  };
}

export interface SlackIntegration {
  webhook_url: string;
  channels: {
    alerts: string;
    notifications: string;
    reports: string;
  };
  mention_users: string[];
}

export interface DiscordIntegration {
  webhook_url: string;
  channels: Record<string, string>;
  roles_to_mention: string[];
}

export interface TeamsIntegration {
  webhook_url: string;
  channel_id: string;
}

export interface EmailIntegration {
  smtp_host: string;
  smtp_port: number;
  username: string;
  password: string;
  from_address: string;
  notification_lists: Record<string, string[]>;
}

export interface PagerDutyIntegration {
  integration_key: string;
  service_key: string;
  escalation_policy: string;
}

export interface DashboardData {
  system_health: any;
  active_operations: any[];
  agent_performance: any;
  cost_metrics: any;
  recent_activities: any[];
  alerts: any[];
}

export class GitHubA2AIntegrationManager extends EventEmitter {
  private config: IntegrationConfig;
  private bridge: GitHubA2AComprehensiveBridge;
  private dashboard: DashboardService | null = null;
  private apiServer: APIServer | null = null;
  private cliInterface: CLIInterface | null = null;
  private webhookHandler: WebhookHandler | null = null;
  private notificationManager: NotificationManager;
  private isInitialized: boolean = false;

  constructor(config: IntegrationConfig) {
    super();
    this.config = config;
    this.notificationManager = new NotificationManager(config.integrations);
    this.setupEventHandlers();
  }

  /**
   * Initialize the complete GitHub A2A integration system
   */
  async initialize(): Promise<void> {
    if (this.isInitialized) {
      console.warn("Integration manager already initialized");
      return;
    }

    try {
      console.log("🚀 Initializing GitHub A2A Integration Manager...");

      // Initialize core bridge
      this.bridge = new GitHubA2AComprehensiveBridge(this.config.bridge);
      await this.bridge.initialize();

      // Initialize optional features
      await this.initializeFeatures();

      // Start system monitoring
      this.startSystemMonitoring();

      // Setup health checks
      this.setupHealthChecks();

      this.isInitialized = true;
      this.emit("system-initialized");

      console.log("✅ GitHub A2A Integration Manager initialized successfully");

      // Send startup notification
      await this.notificationManager.sendNotification("system", {
        type: "system_startup",
        message: "GitHub A2A Integration System started successfully",
        timestamp: new Date(),
        environment: this.config.deployment.environment,
      });
    } catch (error) {
      console.error("❌ Failed to initialize Integration Manager:", error);

      // Send error notification
      await this.notificationManager.sendNotification("alerts", {
        type: "system_error",
        message: `Failed to initialize: ${error}`,
        timestamp: new Date(),
        severity: "critical",
      });

      throw error;
    }
  }

  /**
   * Initialize optional features based on configuration
   */
  private async initializeFeatures(): Promise<void> {
    if (this.config.features.enable_dashboard) {
      this.dashboard = new DashboardService(this.bridge);
      await this.dashboard.start();
      console.log("✅ Dashboard service started");
    }

    if (this.config.features.enable_api) {
      this.apiServer = new APIServer(this.bridge);
      await this.apiServer.start();
      console.log("✅ API server started");
    }

    if (this.config.features.enable_cli) {
      this.cliInterface = new CLIInterface(this.bridge);
      await this.cliInterface.initialize();
      console.log("✅ CLI interface initialized");
    }

    if (this.config.features.enable_webhooks) {
      this.webhookHandler = new WebhookHandler(this.bridge);
      await this.webhookHandler.start();
      console.log("✅ Webhook handler started");
    }
  }

  /**
   * Process GitHub operation through the integration system
   */
  async processGitHubOperation(operation: OperationRequest): Promise<string> {
    if (!this.isInitialized) {
      throw new Error("Integration manager not initialized");
    }

    try {
      // Log operation start
      console.log(
        `Processing ${operation.type} operation for ${operation.repository}`,
      );

      // Send notification for high-priority operations
      if (operation.priority === "critical" || operation.priority === "high") {
        await this.notificationManager.sendNotification("notifications", {
          type: "operation_started",
          operation_type: operation.type,
          repository: operation.repository,
          priority: operation.priority,
          timestamp: new Date(),
        });
      }

      // Process through bridge
      const operationId = await this.bridge.processOperation(operation);

      // Update dashboard if enabled
      if (this.dashboard) {
        await this.dashboard.updateOperationStatus(operationId, "in_progress");
      }

      return operationId;
    } catch (error) {
      console.error(`Failed to process operation: ${error}`);

      // Send error notification
      await this.notificationManager.sendNotification("alerts", {
        type: "operation_failed",
        operation_type: operation.type,
        repository: operation.repository,
        error: String(error),
        timestamp: new Date(),
        severity: "high",
      });

      throw error;
    }
  }

  /**
   * Get comprehensive system status
   */
  getSystemStatus(): any {
    if (!this.isInitialized) {
      return { status: "not_initialized" };
    }

    const bridgeStatus = this.bridge.getStatus();

    return {
      ...bridgeStatus,
      integration_manager: {
        initialized: this.isInitialized,
        features: {
          dashboard: !!this.dashboard,
          api: !!this.apiServer,
          cli: !!this.cliInterface,
          webhooks: !!this.webhookHandler,
        },
        deployment: this.config.deployment,
        uptime: this.getUptime(),
      },
    };
  }

  /**
   * Get dashboard data for UI
   */
  async getDashboardData(): Promise<DashboardData> {
    if (!this.dashboard) {
      throw new Error("Dashboard not enabled");
    }

    return await this.dashboard.getData();
  }

  /**
   * Execute CLI command
   */
  async executeCLICommand(command: string, args: string[]): Promise<any> {
    if (!this.cliInterface) {
      throw new Error("CLI not enabled");
    }

    return await this.cliInterface.executeCommand(command, args);
  }

  /**
   * Handle incoming webhook
   */
  async handleWebhook(payload: any, headers: any): Promise<void> {
    if (!this.webhookHandler) {
      throw new Error("Webhooks not enabled");
    }

    await this.webhookHandler.processWebhook(payload, headers);
  }

  /**
   * Start system monitoring
   */
  private startSystemMonitoring(): void {
    // Monitor system health every 30 seconds
    setInterval(async () => {
      await this.performHealthCheck();
    }, 30000);

    // Generate hourly reports
    setInterval(async () => {
      await this.generateHourlyReport();
    }, 3600000);

    // Daily cost analysis
    setInterval(async () => {
      await this.generateCostReport();
    }, 86400000);
  }

  /**
   * Perform comprehensive health check
   */
  private async performHealthCheck(): Promise<void> {
    try {
      const status = this.getSystemStatus();

      // Check for degraded health
      if (status.overall_health === "degraded") {
        await this.notificationManager.sendNotification("alerts", {
          type: "health_degraded",
          message: "System health is degraded",
          details: status,
          timestamp: new Date(),
          severity: "medium",
        });
      }

      // Check for unhealthy status
      if (status.overall_health === "unhealthy") {
        await this.notificationManager.sendNotification("alerts", {
          type: "health_critical",
          message: "System health is critical",
          details: status,
          timestamp: new Date(),
          severity: "critical",
        });
      }

      // Check resource usage
      if (status.resources.cpu_usage > 90) {
        await this.notificationManager.sendNotification("alerts", {
          type: "high_cpu_usage",
          message: `CPU usage is ${status.resources.cpu_usage}%`,
          timestamp: new Date(),
          severity: "high",
        });
      }

      if (status.resources.memory_usage > 90) {
        await this.notificationManager.sendNotification("alerts", {
          type: "high_memory_usage",
          message: `Memory usage is ${status.resources.memory_usage}%`,
          timestamp: new Date(),
          severity: "high",
        });
      }
    } catch (error) {
      console.error("Health check failed:", error);
    }
  }

  /**
   * Generate hourly system report
   */
  private async generateHourlyReport(): Promise<void> {
    try {
      const status = this.getSystemStatus();
      const report = {
        timestamp: new Date(),
        period: "hourly",
        system_health: status.overall_health,
        operations_processed: status.operations.total_active,
        success_rate: status.operations.success_rate,
        agent_utilization: this.calculateAgentUtilization(status),
        cost_summary: status.costs,
        alerts_count: this.getAlertsCount(),
      };

      await this.notificationManager.sendNotification("reports", {
        type: "hourly_report",
        report,
        timestamp: new Date(),
      });

      console.log("📊 Hourly report generated and sent");
    } catch (error) {
      console.error("Failed to generate hourly report:", error);
    }
  }

  /**
   * Generate daily cost report
   */
  private async generateCostReport(): Promise<void> {
    try {
      const status = this.getSystemStatus();
      const costReport = {
        timestamp: new Date(),
        period: "daily",
        current_costs: status.costs,
        cost_breakdown: await this.getCostBreakdown(),
        optimization_suggestions: await this.getCostOptimizationSuggestions(),
        projected_monthly: status.costs.projected_monthly,
      };

      await this.notificationManager.sendNotification("reports", {
        type: "cost_report",
        report: costReport,
        timestamp: new Date(),
      });

      console.log("💰 Daily cost report generated and sent");
    } catch (error) {
      console.error("Failed to generate cost report:", error);
    }
  }

  /**
   * Setup health checks
   */
  private setupHealthChecks(): void {
    // Bridge component health checks
    this.bridge.on("component-failure", async (data) => {
      await this.notificationManager.sendNotification("alerts", {
        type: "component_failure",
        component: data.component,
        error: data.error,
        timestamp: new Date(),
        severity: "critical",
      });
    });

    // Resource threshold alerts
    this.bridge.on("resource-threshold-exceeded", async (data) => {
      await this.notificationManager.sendNotification("alerts", {
        type: "resource_threshold",
        resource: data.resource,
        current_value: data.value,
        threshold: data.threshold,
        timestamp: new Date(),
        severity: "high",
      });
    });

    // Cost alerts
    this.bridge.on("cost-alert", async (data) => {
      await this.notificationManager.sendNotification("alerts", {
        type: "cost_alert",
        message: data.message,
        current_cost: data.cost,
        threshold: data.threshold,
        timestamp: new Date(),
        severity: "medium",
      });
    });
  }

  /**
   * Setup event handlers for system coordination
   */
  private setupEventHandlers(): void {
    this.on("system-shutdown-requested", async () => {
      console.log("System shutdown requested...");
      await this.shutdown();
    });

    this.on("emergency-stop", async () => {
      console.log("Emergency stop triggered!");
      await this.emergencyStop();
    });
  }

  /**
   * Utility methods
   */
  private calculateAgentUtilization(status: any): number {
    if (status.agents.total === 0) return 0;
    return (status.agents.active / status.agents.total) * 100;
  }

  private getAlertsCount(): number {
    // Mock implementation - would track actual alerts
    return 0;
  }

  private async getCostBreakdown(): Promise<any> {
    // Mock cost breakdown - would analyze actual costs
    return {
      compute: 0.7,
      storage: 0.15,
      network: 0.1,
      api_calls: 0.05,
    };
  }

  private async getCostOptimizationSuggestions(): Promise<string[]> {
    return [
      "Consider scaling down idle agent pools during low usage periods",
      "Optimize CI/CD pipelines to reduce execution time",
      "Enable caching for frequently accessed data",
      "Review API call patterns for optimization opportunities",
    ];
  }

  private getUptime(): number {
    // Mock uptime calculation
    return Date.now() - (this.startTime || Date.now());
  }

  private startTime = Date.now();

  /**
   * Graceful shutdown
   */
  async shutdown(): Promise<void> {
    console.log("🛑 Shutting down GitHub A2A Integration Manager...");

    try {
      // Send shutdown notification
      await this.notificationManager.sendNotification("system", {
        type: "system_shutdown",
        message: "System shutdown initiated",
        timestamp: new Date(),
      });

      // Stop optional services
      if (this.dashboard) await this.dashboard.stop();
      if (this.apiServer) await this.apiServer.stop();
      if (this.webhookHandler) await this.webhookHandler.stop();

      // Shutdown bridge
      if (this.bridge) await this.bridge.shutdown();

      this.isInitialized = false;
      this.emit("system-shutdown");

      console.log("✅ GitHub A2A Integration Manager shutdown complete");
    } catch (error) {
      console.error("Error during shutdown:", error);
      await this.emergencyStop();
    }
  }

  /**
   * Emergency stop for critical situations
   */
  async emergencyStop(): Promise<void> {
    console.log("🚨 EMERGENCY STOP - Immediate system halt");

    try {
      // Force stop all services
      if (this.bridge) await this.bridge.shutdown();

      // Send emergency notification
      await this.notificationManager.sendNotification("alerts", {
        type: "emergency_stop",
        message: "System emergency stop executed",
        timestamp: new Date(),
        severity: "critical",
      });
    } catch (error) {
      console.error("Error during emergency stop:", error);
    }

    process.exit(1);
  }
}

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

  async start(): Promise<void> {
    console.log("Dashboard service starting on port 3000");
    // Mock dashboard service - would start actual web server
  }

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

  async updateOperationStatus(
    operationId: string,
    status: string,
  ): Promise<void> {
    // Update operation status in dashboard
  }

  async getData(): Promise<DashboardData> {
    const status = this.bridge.getStatus();

    return {
      system_health: {
        overall: status.overall_health,
        components: status.components,
      },
      active_operations: Object.values(status.operations.by_type),
      agent_performance: {
        total_agents: status.agents.total,
        utilization: (status.agents.active / status.agents.total) * 100,
      },
      cost_metrics: status.costs,
      recent_activities: [],
      alerts: [],
    };
  }
}

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

  async start(): Promise<void> {
    console.log("API server starting on port 8080");
    // Mock API server - would start actual REST/GraphQL server
  }

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

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

  async initialize(): Promise<void> {
    console.log("CLI interface initialized");
  }

  async executeCommand(command: string, args: string[]): Promise<any> {
    switch (command) {
      case "status":
        return this.bridge.getStatus();
      case "agents":
        return this.listAgents();
      case "operations":
        return this.listOperations();
      default:
        throw new Error(`Unknown command: ${command}`);
    }
  }

  private listAgents(): any {
    // Mock agent listing
    return { agents: [] };
  }

  private listOperations(): any {
    // Mock operation listing
    return { operations: [] };
  }
}

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

  async start(): Promise<void> {
    console.log("Webhook handler started on port 9000");
    // Mock webhook handler - would start actual webhook server
  }

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

  async processWebhook(payload: any, headers: any): Promise<void> {
    // Process GitHub webhooks and route to appropriate operations
    const eventType = headers["x-github-event"];

    switch (eventType) {
      case "pull_request":
        await this.handlePRWebhook(payload);
        break;
      case "issues":
        await this.handleIssueWebhook(payload);
        break;
      case "push":
        await this.handlePushWebhook(payload);
        break;
      default:
        console.log(`Unhandled webhook event: ${eventType}`);
    }
  }

  private async handlePRWebhook(payload: any): Promise<void> {
    if (payload.action === "opened" || payload.action === "synchronize") {
      await this.bridge.processOperation({
        type: "pr_review",
        repository: payload.repository.full_name,
        data: {
          repository: payload.repository.full_name,
          pr_number: payload.pull_request.number,
          head_sha: payload.pull_request.head.sha,
          base_sha: payload.pull_request.base.sha,
          files_changed: [], // Would be populated from API call
          author: payload.pull_request.user.login,
          title: payload.pull_request.title,
          description: payload.pull_request.body,
          labels: payload.pull_request.labels,
          reviewers: payload.pull_request.requested_reviewers,
          assignees: payload.pull_request.assignees,
        },
        priority: "medium",
        requester: "github-webhook",
      });
    }
  }

  private async handleIssueWebhook(payload: any): Promise<void> {
    if (payload.action === "opened") {
      await this.bridge.processOperation({
        type: "issue_triage",
        repository: payload.repository.full_name,
        data: {
          id: payload.issue.id,
          number: payload.issue.number,
          title: payload.issue.title,
          body: payload.issue.body,
          state: payload.issue.state,
          repository: payload.repository.full_name,
          author: payload.issue.user.login,
          assignees: payload.issue.assignees.map((a: any) => a.login),
          labels: payload.issue.labels,
          created_at: new Date(payload.issue.created_at),
          updated_at: new Date(payload.issue.updated_at),
          comments: 0,
          reactions: {},
          linked_prs: [],
        },
        priority: "medium",
        requester: "github-webhook",
      });
    }
  }

  private async handlePushWebhook(payload: any): Promise<void> {
    // Trigger CI/CD pipeline for push events
    if (
      payload.ref === "refs/heads/main" ||
      payload.ref === "refs/heads/master"
    ) {
      await this.bridge.processOperation({
        type: "cicd_pipeline",
        repository: payload.repository.full_name,
        data: {
          repository: payload.repository.full_name,
          branch: payload.ref.replace("refs/heads/", ""),
          trigger: "push",
          environment: "development",
        },
        priority: "high",
        requester: "github-webhook",
      });
    }
  }
}

class NotificationManager {
  constructor(private integrations: any) {}

  async sendNotification(channel: string, notification: any): Promise<void> {
    console.log(
      `📢 Notification [${channel}]: ${notification.type} - ${notification.message || "No message"}`,
    );

    // Send to configured integrations
    if (this.integrations.slack) {
      await this.sendSlackNotification(channel, notification);
    }

    if (this.integrations.discord) {
      await this.sendDiscordNotification(channel, notification);
    }

    if (this.integrations.email) {
      await this.sendEmailNotification(channel, notification);
    }

    if (this.integrations.pagerduty && notification.severity === "critical") {
      await this.sendPagerDutyAlert(notification);
    }
  }

  private async sendSlackNotification(
    channel: string,
    notification: any,
  ): Promise<void> {
    // Mock Slack notification
    console.log(`Slack notification sent to ${channel}`);
  }

  private async sendDiscordNotification(
    channel: string,
    notification: any,
  ): Promise<void> {
    // Mock Discord notification
    console.log(`Discord notification sent to ${channel}`);
  }

  private async sendEmailNotification(
    channel: string,
    notification: any,
  ): Promise<void> {
    // Mock email notification
    console.log(`Email notification sent for ${channel}`);
  }

  private async sendPagerDutyAlert(notification: any): Promise<void> {
    // Mock PagerDuty alert
    console.log(`PagerDuty alert triggered: ${notification.message}`);
  }
}