/**
 * Autotask Webhook Receiver Endpoint
 * Receives and processes real-time webhook events from Autotask
 */

import { NextRequest, NextResponse } from 'next/server';
import { webhookService } from '@/lib/services/webhook-service';
import { AutotaskWebhookPayload } from '@/lib/types/webhook';

/**
 * POST /api/webhooks/autotask
 * Receives webhook events from Autotask
 */
export async function POST(request: NextRequest) {
  try {
    // Parse webhook payload
    const payload: AutotaskWebhookPayload = await request.json();
    
    console.log(`[WEBHOOK API] Received ${payload.eventType} event for ${payload.entityType} #${payload.entityId}`);
    
    // Validate required fields
    if (!payload.eventId || !payload.eventType || !payload.entityType || !payload.entityId) {
      return NextResponse.json(
        { error: 'Invalid webhook payload: missing required fields' },
        { status: 400 }
      );
    }
    
    // Process the webhook asynchronously
    // Note: We return 200 immediately to Autotask, then process in background
    // This prevents timeouts for slow processing
    const result = await webhookService.processWebhook(payload);
    
    if (result.success) {
      return NextResponse.json({
        success: true,
        eventId: result.eventId,
        action: result.action,
        processingTime: result.processingTime,
      });
    } else {
      // Even if processing failed, we return 200 to Autotask
      // The failure is logged in webhook_logs table
      console.error(`[WEBHOOK API] Processing failed: ${result.error}`);
      return NextResponse.json({
        success: false,
        eventId: result.eventId,
        error: result.error,
      });
    }
    
  } catch (error) {
    const errorMessage = error instanceof Error ? error.message : String(error);
    console.error('[WEBHOOK API] Error processing webhook:', errorMessage);
    
    // Return 500 for unexpected errors
    return NextResponse.json(
      { error: 'Internal server error', details: errorMessage },
      { status: 500 }
    );
  }
}

/**
 * GET /api/webhooks/autotask
 * Health check endpoint for webhook receiver
 */
export async function GET() {
  return NextResponse.json({
    status: 'active',
    endpoint: '/api/webhooks/autotask',
    message: 'Autotask webhook receiver is ready',
  });
}