/**
* Google ADK Integration
*
* This module provides integration points for Google Actions Development Kit
*
* Best Practices:
* - Separation of concerns (integration in separate module)
* - Optional integration (graceful degradation if not configured)
* - Logging and analytics hooks
*/
export interface ToolUsageLog {
toolName: string;
arguments: any;
result: any;
timestamp: Date;
duration?: number;
}
/**
* Google ADK Integration Class
*
* This is a placeholder for Google ADK integration.
* In a real implementation, you would:
* 1. Set up Google Actions SDK
* 2. Configure webhook endpoints
* 3. Handle fulfillment requests
* 4. Send responses back to Google Assistant
*/
export class GoogleADKIntegration {
private enabled: boolean;
private logs: ToolUsageLog[];
constructor() {
// Check if Google ADK is configured
this.enabled = process.env.GOOGLE_ADK_ENABLED === 'true';
this.logs = [];
if (this.enabled) {
console.error('[Google ADK] Integration enabled');
this.initialize();
} else {
console.error('[Google ADK] Integration disabled (set GOOGLE_ADK_ENABLED=true to enable)');
}
}
/**
* Initialize Google ADK
* Best Practice: Lazy initialization
*/
private initialize(): void {
// TODO: Initialize Google Actions SDK
// Example:
// - Set up Express server for webhooks
// - Configure OAuth if needed
// - Set up fulfillment handlers
}
/**
* Log tool usage for analytics
* Best Practice: Non-blocking logging
*/
async logToolUsage(
toolName: string,
arguments_: any,
result: any
): Promise<void> {
const log: ToolUsageLog = {
toolName,
arguments: arguments_,
result,
timestamp: new Date(),
};
this.logs.push(log);
if (this.enabled) {
// In a real implementation, send to Google Analytics or similar
// await this.sendToAnalytics(log);
}
}
/**
* Get usage statistics
* Useful for Google ADK analytics dashboard
*/
getUsageStats(): {
totalCalls: number;
toolBreakdown: Record<string, number>;
recentCalls: ToolUsageLog[];
} {
const toolBreakdown: Record<string, number> = {};
for (const log of this.logs) {
toolBreakdown[log.toolName] = (toolBreakdown[log.toolName] || 0) + 1;
}
return {
totalCalls: this.logs.length,
toolBreakdown,
recentCalls: this.logs.slice(-10), // Last 10 calls
};
}
/**
* Handle Google Assistant fulfillment request
* Best Practice: Async handler with error handling
*/
async handleFulfillmentRequest(_request: any): Promise<any> {
if (!this.enabled) {
throw new Error('Google ADK integration is not enabled');
}
// TODO: Implement fulfillment handler
// This would process requests from Google Assistant
// and return appropriate responses
// The _request parameter will be used when implementing the handler
return {
fulfillmentText: 'MCP Server Demo is ready',
fulfillmentMessages: [
{
text: {
text: ['Hello from MCP Server Demo!'],
},
},
],
};
}
}
