Notes/src/services/becca/becca.js

"use strict";

const sql = require("../sql.js");
const NoteRevision = require("./entities/note_revision.js");

class Becca {
    constructor() {
        this.reset();
    }

    reset() {
        /** @type {Object.<String, Note>} */
        this.notes = [];
        /** @type {Object.<String, Branch>} */
        this.branches = [];
        /** @type {Object.<String, Branch>} */
        this.childParentToBranch = {};
        /** @type {Object.<String, Attribute>} */
        this.attributes = [];
        /** @type {Object.<String, Attribute[]>} Points from attribute type-name to list of attributes */
        this.attributeIndex = {};

        this.loaded = false;
    }

    /** @return {Attribute[]} */
    findAttributes(type, name) {
        return this.attributeIndex[`${type}-${name.toLowerCase()}`] || [];
    }

    /** @return {Attribute[]} */
    findAttributesWithPrefix(type, name) {
        const resArr = [];
        const key = `${type}-${name}`;

        for (const idx in this.attributeIndex) {
            if (idx.startsWith(key)) {
                resArr.push(this.attributeIndex[idx]);
            }
        }

        return resArr.flat();
    }

    decryptProtectedNotes() {
        for (const note of Object.values(this.notes)) {
            note.decrypt();
        }
    }

    getNote(noteId) {
        return this.notes[noteId];
    }

    getNotes(noteIds) {
        return this.notes.filter(note => noteIds.includes(note.noteId));
    }

    getBranch(branchId) {
        return this.branches[branchId];
    }

    getAttribute(attributeId) {
        return this.attributes[attributeId];
    }

    getBranchFromChildAndParent(childNoteId, parentNoteId) {
        return this.childParentToBranch[`${childNoteId}-${parentNoteId}`];
    }

    getNoteRevision(noteRevisionId) {
        const row = sql.getRow("SELECT * FROM note_revisions WHERE noteRevisionId = ?", [noteRevisionId]);

        return row ? new NoteRevision(row) : null;
    }
}

const becca = new Becca();

module.exports = becca;