import { HandlebarsAdapter } from '@nestjs-modules/mailer/dist/adapters/handlebars.adapter';
import { MailerAsyncOptions } from '@nestjs-modules/mailer/dist/interfaces/mailer-async-options.interface';
import { ConfigModule, ConfigService } from '@nestjs/config';
import * as path from 'path';

export const MailConfiguration: MailerAsyncOptions = {
  imports: [ConfigModule],
  inject: [ConfigService],
  useFactory: async (configService: ConfigService) => {
    return {
      transport: {
        host: configService.get<string>('MAIL_HOST'),
        secure: configService.get<boolean>('MAIL_SECURE'),
        auth: {
          user: configService.get<string>('MAIL_USER'),
          pass: configService.get<string>('MAIL_PASS'),
        },
        port: configService.get<number>('MAIL_PORT'),
        encoding: configService.get<string>('MAIL_ENCODING'),
      },
      defaults: {
        from: configService.get<string>('MAIL_NAME'),
      },
      template: {
        dir: path.join(__dirname, 'mail/templates'),
        adapter: new HandlebarsAdapter(),
        options: {
          strict: false,
        },
      },
    };
  },
};