const { Sequelize, DataTypes } = require('sequelize');
const { sequelize } = require('./model');
const crypto = require('crypto');

const Order = sequelize.define(
  'Orders',
  {
    order_id: { type: DataTypes.INTEGER, primaryKey: true, autoIncrement: true, unique: true },
    invoice_id: { type: DataTypes.STRING, allowNull: false },
    username: { type: DataTypes.STRING, allowNull: false },
    custom_id: { type: DataTypes.STRING, allowNull: false },
    amount: { type: DataTypes.STRING, allowNull: false },
    total_price: { type: DataTypes.DECIMAL, allowNull: false },
    currency_code: { type: DataTypes.STRING, allowNull: false },
    items: { type: DataTypes.STRING, allowNull: false },
    order_status: { type: DataTypes.STRING, allowNull: false, defaultValue: 'NOT_PAID' },
    salt: { type: DataTypes.STRING, allowNull: false },
  },
  { timestamps: true },
);

function genSalt() {
  return crypto.randomBytes(16).toString('hex');
}

function createMD5HashWithSalt(inputString, salt) {
  // Prepend the salt to the inputString
  const saltedInput = salt + inputString;

  // Proceed with the MD5 hash
  const hash = crypto.createHash('md5').update(saltedInput).digest('hex');

  // Optionally, you might want to return both the hash and the salt
  // for storage, so you can verify the input against the hash later.
  return { salt, hash };
}

(async () => {
  try {
    await sequelize.authenticate();
    console.log('Connection has been established successfully.');
    const item_name = 'item_name';
    const quantity = parseInt('10');
    const unit_price = parseInt('1');
    const currency_code = 'HKD';
    const amount = parseInt(20);
    const total_price = parseInt(20);
    const email_name = 'cust1@vtkhmall.com';

    // create table
    await Order.drop();

    await sequelize.sync();

    const order = await Order.create({
      invoice_id: crypto.randomUUID(),
      username: email_name,
      custom_id: createMD5HashWithSalt(
        JSON.stringify(
          [
            { item_name, quantity, unit_price },
            { item_name, quantity, unit_price },
          ],
          total_price,
          currency_code,
          email_name,
        ),
        genSalt(),
      )['hash'],
      amount,
      total_price,
      currency_code,
      items: JSON.stringify([
        { item_name, quantity, unit_price },
        { item_name, quantity, unit_price },
      ]),
      order_status: 'NOT_PAID',
      salt: '12321',
    });
    orders = await Order.findAll();

    // await sequelize.close();
  } catch (error) {
    console.error('Unable to connect to the database:', error);
  }
})();