helix-engage-server/src/exotel/exotel.controller.ts

import { Controller, Post, Body, Logger, HttpCode } from '@nestjs/common';
import { ExotelService } from './exotel.service';
import { CallEventsService } from '../call-events/call-events.service';
import type { ExotelWebhookPayload } from './exotel.types';

@Controller('webhooks/exotel')
export class ExotelController {
    private readonly logger = new Logger(ExotelController.name);

    constructor(
        private readonly exotelService: ExotelService,
        private readonly callEventsService: CallEventsService,
    ) {}

    @Post('call-status')
    @HttpCode(200)
    async handleCallStatus(@Body() payload: ExotelWebhookPayload) {
        this.logger.log(`Received Exotel webhook: ${payload.event_details?.event_type}`);

        const callEvent = this.exotelService.parseWebhook(payload);

        if (callEvent.eventType === 'answered') {
            await this.callEventsService.handleIncomingCall(callEvent);
        } else if (callEvent.eventType === 'ended') {
            await this.callEventsService.handleCallEnded(callEvent);
        }

        return { status: 'received' };
    }
}