const config = require('../../config');
const providers = config.providers;
const crypto = require('crypto');
const bcrypt = require('bcrypt');
const moment = require('moment');

module.exports = function (sequelize, DataTypes) {
  const books = sequelize.define(
    'books',
    {
      id: {
        type: DataTypes.UUID,
        defaultValue: DataTypes.UUIDV4,
        primaryKey: true,
      },

      title: {
        type: DataTypes.TEXT,
      },

      author: {
        type: DataTypes.TEXT,
      },

      description: {
        type: DataTypes.TEXT,
      },

      grade: {
        type: DataTypes.TEXT,
      },

      subject: {
        type: DataTypes.TEXT,
      },

      curriculum_code: {
        type: DataTypes.TEXT,
      },

      language: {
        type: DataTypes.ENUM,

        values: ['en', 'tpi', 'tpi-en'],
      },

      file_name: {
        type: DataTypes.TEXT,
      },

      cover_name: {
        type: DataTypes.TEXT,
      },

      file_size_bytes: {
        type: DataTypes.INTEGER,
      },

      year_published: {
        type: DataTypes.INTEGER,
      },

      uploaded_at: {
        type: DataTypes.DATE,
      },

      is_visible: {
        type: DataTypes.BOOLEAN,

        allowNull: false,
        defaultValue: false,
      },

      importHash: {
        type: DataTypes.STRING(255),
        allowNull: true,
        unique: true,
      },
    },
    {
      timestamps: true,
      paranoid: true,
      freezeTableName: true,
    },
  );

  books.associate = (db) => {
    /// loop through entities and it's fields, and if ref === current e[name] and create relation has many on parent entity

    db.books.hasMany(db.book_categories, {
      as: 'book_categories_book',
      foreignKey: {
        name: 'bookId',
      },
      constraints: false,
    });

    db.books.hasMany(db.download_logs, {
      as: 'download_logs_book',
      foreignKey: {
        name: 'bookId',
      },
      constraints: false,
    });

    //end loop

    db.books.belongsTo(db.users, {
      as: 'createdBy',
    });

    db.books.belongsTo(db.users, {
      as: 'updatedBy',
    });
  };

  return books;
};