"use strict";
const Entity = require('./entity');
const dateUtils = require('../services/date_utils');
const repository = require('../services/repository');
const sql = require('../services/sql');
/**
* Branch represents note's placement in the tree - it's essentially pair of noteId and parentNoteId.
* Each note can have multiple (at least one) branches, meaning it can be placed into multiple places in the tree.
*
* @param {string} branchId - primary key
* @param {string} noteId
* @param {string} parentNoteId
* @param {int} notePosition
* @param {string} prefix
* @param {boolean} isExpanded
* @param {boolean} isDeleted
* @param {string} utcDateModified
* @param {string} utcDateCreated
*
* @extends Entity
*/
class Branch extends Entity {
static get entityName() { return "branches"; }
static get primaryKeyName() { return "branchId"; }
// notePosition is not part of hash because it would produce a lot of updates in case of reordering
static get hashedProperties() { return ["branchId", "noteId", "parentNoteId", "isDeleted", "prefix"]; }
constructor(row = {}) {
super(row);
// used to detect move in note tree
this.origParentNoteId = this.parentNoteId;
}
/** @returns {Note|null} */
async getNote() {
return await repository.getEntity("SELECT * FROM notes WHERE noteId = ?", [this.noteId]);
}
async beforeSaving() {
if (this.notePosition === undefined) {
const maxNotePos = await sql.getValue('SELECT MAX(notePosition) FROM branches WHERE parentNoteId = ? AND isDeleted = 0', [this.parentNoteId]);
this.notePosition = maxNotePos === null ? 0 : maxNotePos + 1;
}
if (!this.isDeleted) {
this.isDeleted = false;
}
if (!this.utcDateCreated) {
this.utcDateCreated = dateUtils.utcNowDateTime();
}
super.beforeSaving();
if (this.isChanged) {
this.utcDateModified = dateUtils.utcNowDateTime();
}
}
// cannot be static!
updatePojo(pojo) {
delete pojo.origParentNoteId;
}
}
module.exports = Branch;