const { DataTypes } = require('sequelize');

module.exports = (sequelize) => {
  const ShoppingItem = sequelize.define('ShoppingItem', {
    id: {
      type: DataTypes.INTEGER,
      primaryKey: true,
      autoIncrement: true,
    },
    name: {
      type: DataTypes.STRING,
      allowNull: false,
      validate: {
        notEmpty: true,
      },
    },
    amount: {
      type: DataTypes.STRING,
      allowNull: false,
      defaultValue: '1',
    },
    checked: {
      type: DataTypes.BOOLEAN,
      defaultValue: false,
    },
    checkedAt: {
      type: DataTypes.DATE,
      allowNull: true,
    },
    date: {
      type: DataTypes.DATE,
      allowNull: false,
      defaultValue: DataTypes.NOW,
    },
  }, {
    timestamps: true,
    hooks: {
      beforeUpdate: (item, options) => {
        // Set checkedAt timestamp when item is checked
        if (item.checked && !item.previous('checked')) {
          item.checkedAt = new Date();
        } else if (!item.checked) {
          item.checkedAt = null;
        }
      },
    },
  });

  return ShoppingItem;
};