import { singleton } from 'decorators/singleton'
import { createTransport, Transporter } from 'nodemailer'
import Mail from 'nodemailer/lib/mailer'
import FormData from 'form-data'
import Mailgun, { InputFormData } from 'mailgun.js'
import { ZError } from 'common/ZError'
import * as aws from '@aws-sdk/client-ses'

@singleton
export class MailService {
  private transporter: Transporter
  private mailClient: any
  private awsClient: any
  constructor() {
    // const options = {
    //   host: process.env.MAIL_SMTP_HOST,
    //   secure: true,
    //   auth: {
    //     user: process.env.MAIL_SMTP_USER,
    //     pass: process.env.MAIL_SMTP_PASS,
    //   },
    //   logger: true,
    //   debug: false,
    // }
    // // @ts-ignore
    // this.transporter = createTransport(options, {})

    const mailgun = new Mailgun(FormData)
    this.mailClient = mailgun.client({ username: 'api', key: process.env.MAILGUN_API_KEY })
    const ses = new aws.SES({
      region: 'ap-southeast-1', // Your region will need to be updated
      credentials: {
        accessKeyId: process.env.AWS_ACCESS_KEY,
        secretAccessKey: process.env.AWS_SECRET_KEY,
      },
    })
    this.transporter = createTransport({
      SES: { ses, aws },
    })
  }

  public async send(message: Mail.Options) {
    await this.transporter.verify()
    return this.transporter.sendMail(message)
  }

  public async sendMailgun(message: Mail.Options) {
    const domain = 'counterfire.games'
    const sendResult = await this.mailClient.messages.create(domain, {
      from: message.from,
      to: message.to,
      subject: message.subject,
      html: message.html,
      text: message.text,
    })
    if (sendResult.status !== 200) {
      throw new ZError(20, sendResult.message)
    }
    return { messageId: sendResult.id }
  }
}