import * as Sequelize from 'sequelize' import { isUserUsernameValid } from '../../helpers' import { removeVideoAuthorToFriends } from '../../lib' import { addMethodsToModel } from '../utils' import { AuthorInstance, AuthorAttributes, AuthorMethods } from './author-interface' let Author: Sequelize.Model let loadAuthorByPodAndUUID: AuthorMethods.LoadAuthorByPodAndUUID let load: AuthorMethods.Load let loadByUUID: AuthorMethods.LoadByUUID let listOwned: AuthorMethods.ListOwned let isOwned: AuthorMethods.IsOwned let toAddRemoteJSON: AuthorMethods.ToAddRemoteJSON export default function defineAuthor (sequelize: Sequelize.Sequelize, DataTypes: Sequelize.DataTypes) { Author = sequelize.define('Author', { uuid: { type: DataTypes.UUID, defaultValue: DataTypes.UUIDV4, allowNull: false, validate: { isUUID: 4 } }, name: { type: DataTypes.STRING, allowNull: false, validate: { usernameValid: value => { const res = isUserUsernameValid(value) if (res === false) throw new Error('Username is not valid.') } } } }, { indexes: [ { fields: [ 'name' ] }, { fields: [ 'podId' ] }, { fields: [ 'userId' ], unique: true }, { fields: [ 'name', 'podId' ], unique: true } ], hooks: { afterDestroy } } ) const classMethods = [ associate, loadAuthorByPodAndUUID, load, loadByUUID, listOwned ] const instanceMethods = [ isOwned, toAddRemoteJSON ] addMethodsToModel(Author, classMethods, instanceMethods) return Author } // --------------------------------------------------------------------------- function associate (models) { Author.belongsTo(models.Pod, { foreignKey: { name: 'podId', allowNull: true }, onDelete: 'cascade' }) Author.belongsTo(models.User, { foreignKey: { name: 'userId', allowNull: true }, onDelete: 'cascade' }) Author.hasMany(models.VideoChannel, { foreignKey: { name: 'authorId', allowNull: false }, onDelete: 'cascade', hooks: true }) } function afterDestroy (author: AuthorInstance) { if (author.isOwned()) { const removeVideoAuthorToFriendsParams = { uuid: author.uuid } return removeVideoAuthorToFriends(removeVideoAuthorToFriendsParams) } return undefined } toAddRemoteJSON = function (this: AuthorInstance) { const json = { uuid: this.uuid, name: this.name } return json } isOwned = function (this: AuthorInstance) { return this.podId === null } // ------------------------------ STATICS ------------------------------ listOwned = function () { const query: Sequelize.FindOptions = { where: { podId: null } } return Author.findAll(query) } load = function (id: number) { return Author.findById(id) } loadByUUID = function (uuid: string) { const query: Sequelize.FindOptions = { where: { uuid } } return Author.findOne(query) } loadAuthorByPodAndUUID = function (uuid: string, podId: number, transaction: Sequelize.Transaction) { const query: Sequelize.FindOptions = { where: { podId, uuid }, transaction } return Author.find(query) }