const db = require('../models');
const Users = db.users;

const UsernamePasswordPairs = db.username_password_pairs;

const UsernamePasswordPairsData = [
  {
    username: 'userA',

    password: 'passA',
  },

  {
    username: 'userB',

    password: 'passB',
  },

  {
    username: 'userC',

    password: 'passC',
  },
];

// Similar logic for "relation_many"

module.exports = {
  up: async (queryInterface, Sequelize) => {
    await UsernamePasswordPairs.bulkCreate(UsernamePasswordPairsData);

    await Promise.all([
      // Similar logic for "relation_many"
    ]);
  },

  down: async (queryInterface, Sequelize) => {
    await queryInterface.bulkDelete('username_password_pairs', null, {});
  },
};