maestro/src/modules/mixpanel/mixpanel.service.ts

import DadosferaLogger from '@dadosfera/dadosfera-logs';
import { Inject } from '@nestjs/common';
import { Request } from 'express';
import mixpanel, { init } from 'mixpanel';
import { RequestUser } from 'src/decorators/user.decorator';

export class MixpanelService {
    logger: DadosferaLogger;

  constructor(
    @Inject('MIXPANEL_TOKEN')
    private readonly mixpanelToken: string,
    @Inject(DadosferaLogger)
    dadosferaLogger: DadosferaLogger,
  ) {
    this.logger = dadosferaLogger.logger;
  }

  async track(eventName: string, user: RequestUser, request: Request, body: any) {
    this.logger.info("track: " + JSON.stringify({
        eventName,
        ...body
    }))
    const mixpanel = init(this.mixpanelToken);
    await this.setPeople(user, mixpanel);

    await mixpanel.track(eventName, {
      distinct_id: user.username,
      customer: user.customer_name,
      env: process.env.ENV,
      $ip: request.ip,
      $os: request.headers['sec-ch-ua-platform'] || '',
      $browser: request.headers['user-agent'],
      ...body,
    });
    return;
  }

  async trackShare(request: Request,  body: any) {
    this.logger.info("trackShare: " + JSON.stringify(body))
    const mixpanel = init(this.mixpanelToken);

    await mixpanel.track("share_page", {
      env: process.env.ENV,
      $ip: request.ip,
      $os: request.headers['sec-ch-ua-platform'] || '',
      $browser: request.headers['user-agent'],
      ...body,
    });
    return;
  }

  private async setPeople(user: RequestUser, mixpanel: mixpanel.Mixpanel) {
    const separator = user.username.includes('-') ? '-' : '.';
    const removeValues = [
      '.dadosferatech.dadosfera',
      '.demo.dadosfera',
      '.dadosferademo',
      '.dadosferarh.dadosfera',
      '.dadosferatech.dadosfera2',
      '.dadosferatech.dadosfera',
      '.dadosfera.fin',
      '.dadosferafin.dadosfera',
      '.praxio.dadosfera',
      '.dadosfera.tech',
      '.treinamentos@dadosfera.ai',
      '.dadosfera2',
      '.treinamentosfera',
      '.dadosfera',
    ];

    let username = user.username;

    removeValues.forEach((value) => {
      username = username.replace(value, '');
    });

    username = username.split('@')?.[0];
    username = username.split('+')?.[0];

    let firstName = username
      .substring(0, username.indexOf(separator))
      .replace('dadosfera', '');
    let lastName = username
      .substring(username.lastIndexOf(separator) + 1)
      .replace('dadosfera', '');

    if (!firstName) {
      firstName = lastName;
      lastName = '';
    }

    firstName = this.capitalize(firstName);
    lastName = this.capitalize(lastName);

    await mixpanel.people.set(user.username, {
      $first_name: firstName,
      $last_name: lastName,
      $name: this.getFullName(firstName, lastName),
      $email: user.username.includes('@')
        ? user.username
        : user.username + '@dadosfera.ai',
      customer_name: user.customer_name,
    });
  }

  private capitalize(sentence: string): string {
    if (!sentence) {
      return '';
    }

    return sentence[0].toUpperCase() + sentence.substring(1);
  }

  private getFullName(firstName: string, lastName: string) {
    return `${firstName}${lastName ? ' ' + lastName : ''}`;
  }
}