chat bot

chatbot.ts

import * as twilio from 'twilio';
import { Injectable } from '@nestjs/common';
import { ResponseUtilsService } from 'src/services/utils-service';
import {
  TWILIO_ACCOUNT_SID,
  TWILIO_AUTH_TOKEN,
  TWILIO_SANDBOX_NUMBER,
} from 'src/core';

@Injectable()
export class WhatsappBotServices {
  CLIENT = twilio(TWILIO_ACCOUNT_SID, TWILIO_AUTH_TOKEN);

  constructor(private readonly response: ResponseUtilsService) {}

  async sendMessage(payload: Record<string, any>) {
    const { Body: body, WaId: from } = payload;
    console.log('---- body ----');
    console.log(payload);
    console.log('---- body ----');

    switch (true) {
      case body.toLowerCase().includes('hello'):
        await this.welcomeMessage(from);
        break;

      case body.toLowerCase().includes('shop'):
        await this.shop(from);
        break;

      case body.toLowerCase().includes('order'):
        await this.order(from);
        break;

      case body.toLowerCase().includes('know'):
        await this.know(from);
        break;
      default:
        break;
    }

    return this.response.success200Response({
      message: 'Retrieved successfully',
      data: body,
    });
  }
  async welcomeMessage(from: string) {
    await this.CLIENT.messages.create({
      body: `
      Welcome to Cutstruct 😃
      Please select one of the following

      1) Shop on cutstruct

      2) Order on cutstruct

      3) Know more about Cutstruct

      `,
      contentSid: 'HXe43387be1c4dad3438646b9e17332845',
      from: `whatsapp:${TWILIO_SANDBOX_NUMBER}`,
      to: `whatsapp:+${from}`,
      contentVariables: JSON.stringify({
        // Add your key-value pairs here
        '1': 'value1',
        '2': 'value2',
      }),
    });
  }

  async shop(from: string) {
    await this.CLIENT.messages.create({
      body: `Please visit https://market-place.cutstruct.com to shop at our marketplace🤖.`,
      contentSid: 'HXe43387be1c4dad3438646b9e17332845',
      from: `whatsapp:${TWILIO_SANDBOX_NUMBER}`,
      to: `whatsapp:+${from}`,
      contentVariables: JSON.stringify({
        // Add your key-value pairs here
        '1': 'value1',
        '2': 'value2',
      }),
    });
  }

  async order(from: string) {
    await this.CLIENT.messages.create({
      body: `Please visit https://market-place.cutstruct.com/request to order at our marketplace🤖. `,
      contentSid: 'HXe43387be1c4dad3438646b9e17332845',
      from: `whatsapp:${TWILIO_SANDBOX_NUMBER}`,
      to: `whatsapp:+${from}`,
      contentVariables: JSON.stringify({
        // Add your key-value pairs here
        '1': 'value1',
        '2': 'value2',
      }),
    });
  }
  async know(from: string) {
    await this.CLIENT.messages.create({
      body: `Please visit https://www.cutstruct.com to know about Cutstruct🤖.`,
      contentSid: 'HXe43387be1c4dad3438646b9e17332845',
      from: `whatsapp:${TWILIO_SANDBOX_NUMBER}`,
      to: `whatsapp:+${from}`,
      contentVariables: JSON.stringify({
        // Add your key-value pairs here
        '1': 'value1',
        '2': 'value2',
      }),
    });
  }
}

// {
//     SmsMessageSid: 'SM8d268b9837c1e0a52f27967185fddbff',
//     NumMedia: '0',
//     ProfileName: 'Goody',
//     MessageType: 'text',
//     SmsSid: 'SM8d268b9837c1e0a52f27967185fddbff',
//     WaId: '2349018916522',
//     SmsStatus: 'received',
//     Body: 'Test bot',
//     To: 'whatsapp:+14155238886',
//     NumSegments: '1',
//     ReferralNumMedia: '0',
//     MessageSid: 'SM8d268b9837c1e0a52f27967185fddbff',
//     AccountSid: 'AC8c03a2966102d01ffd44c0d2a44a9bae',
//     From: 'whatsapp:+2349018916522',
//     ApiVersion: '2010-04-01'
//   }