@natlibfi/melinda-ui-commons/src/scripts/notes.js

Common modules for Melinda UI applications

 
 

//****************************************************************************//
//                                                                            //
// SERVER NOTIFICATIONS FOR MELINDA UI APPLICATIONS                           //
//    - collection 'notes' in Mongo DB                                        //
//                                                                            //
//****************************************************************************//

import httpStatus from 'http-status';
import {MongoClient, ObjectId} from 'mongodb';
import sanitize from 'mongo-sanitize';
import {createLogger} from '@natlibfi/melinda-backend-commons';
import {Error as ApiError} from '@natlibfi/melinda-commons';
import {construct, hasUndefinedProperty, isObject} from './notificationUtils.js';


export default async function (MONGO_URI, dbName = 'melinda-ui') {
  const logger = createLogger();

  // Connect to mongo (MONGO)
  const client = await MongoClient.connect(MONGO_URI);
  const db = client.db(dbName);
  const collection = 'notes';

  // Default projection for a note item
  // The returned note item object:
  //  - has property '_id' removed
  //  - has property 'id' added
  //  - all other properties are returned without modifications
  //      * url is an optional property and is therefore not always present in returned objects
  const noteItemProjection = {
    projection: {
      _id: 0,
      id: {$toString: '$_id'},
      blocksInteraction: 1,
      componentStyle: 1,
      context: 1,
      endDate: 1,
      isDismissible: 1,
      messageStyle: 1,
      messageText: 1,
      url: 1
    }
  };


  return {addNoteItem, getNoteItem, getNoteItems, getNoteItemsForApp, removeNoteItem, removeNoteItemsByMessageStyle};


  //-----------------------------------------------------------------------------
  // ADD SERVER NOTIFICATIONS
  //-----------------------------------------------------------------------------

  /**
   * Add note item to collection
   * @param {Object} noteItem contains note item data:
   * {
   *   blocksInteraction: false,
   *   componentStyle: "banner",
   *   context: ["artikkelit", "muuntaja"],
   *   endDate: new Date("2024-12-30T12:30:15.002"),
   *   isDismissible: true,
   *   messageStyle: "info",
   *   messageText: "Test server notification message",
   *   url: "https://www.kansalliskirjasto.fi/" //optional property
   *  }
   * @returns {void}
   */
  async function addNoteItem(noteItem) {
    logger.info(`MongoNotes: Adding one note item ${JSON.stringify(noteItem)}`);

    if (!isObject(noteItem)) {
      logger.debug('MongoNotes: NoteItem parameter is not object');
      throw new ApiError(httpStatus.INTERNAL_SERVER_ERROR, 'NoteItem data is not valid');
    }

    const newNoteItem = construct(noteItem);

    if (hasUndefinedProperty(newNoteItem)) {
      logger.debug('MongoNotes: NoteItem data did not pass validation');
      throw new ApiError(httpStatus.INTERNAL_SERVER_ERROR, 'NoteItem data is not valid');
    }

    // '_id' property is automatically generated by mongo node driver
    // and added to noteItem before insert to collection.
    // type of '_id' is ObjectId.
    const result = await db.collection(collection).insertOne(newNoteItem);

    if (result.acknowledged) {
      logger.info(`New ${noteItem.componentStyle} note item added with ${noteItem.messageStyle} message: ${noteItem.messageText}`);

      const {_id: _, ...rest} = newNoteItem;
      return {id: result.insertedId.toString(), ...rest};
    }

    throw new ApiError(httpStatus.INTERNAL_SERVER_ERROR, `MongoNotes could not add note ${noteItem}`);

  }


  //-----------------------------------------------------------------------------
  // GET SERVER NOTIFICATIONS
  //-----------------------------------------------------------------------------

  /**
 * Get note item with id
 * @param {String} noteId object's id
 * @returns Boolean
 */
  async function getNoteItem(noteId) {
    logger.info(`MongoNotes: Getting one note item`);

    const cleanId = sanitize(noteId);
    const query = {_id: new ObjectId(cleanId)};

    const result = await db.collection(collection).findOne(query, noteItemProjection);

    return result;
  }

  /**
   * Get note items with matching context.app
   * @param {String} app apps name
   * @returns Array of note objects
   */
  async function getNoteItemsForApp(app) {
    logger.info(`MongoNotes: Getting all note items for app`);

    const cleanAppName = sanitize(app);

    const query = {
      'context': {
        $in: [cleanAppName, 'all']
      }
    };

    const result = await db.collection(collection).find(query, noteItemProjection).toArray();

    return result;
  }

  /**
   * Get note items
   * @returns Array of note objects
   */
  async function getNoteItems() {
    logger.info(`MongoNotes: Getting all note items`);

    const query = {};
    const result = await db.collection(collection).find(query, noteItemProjection).toArray();

    return result;
  }


  //-----------------------------------------------------------------------------
  // REMOVE SERVER NOTIFICATIONS
  //-----------------------------------------------------------------------------

  /**
   * Remove note
   * @param {String} noteId object's id
   * @returns Boolean
   */
  async function removeNoteItem(noteId) {
    logger.info(`MongoNotes: Removing one note item with id ${noteId}`);

    const cleanId = sanitize(noteId);
    const filter = {_id: new ObjectId(cleanId)};

    const result = await db.collection(collection).deleteOne(filter);

    if (result.deletedCount > 0) {
      return true;
    }

    if (result.deletedCount === 0) {
      return false;
    }

    throw new ApiError(httpStatus.NOT_FOUND, `MongoNotes could not remove note with id ${noteId}`);
  }

  /**
 * Remove notes by message style
 * @param {String} messageStyle
 * @returns Boolean
 */
  async function removeNoteItemsByMessageStyle(messageStyle) {
    logger.info(`MongoNotes: Removing all notes with message style ${messageStyle}`);

    const cleanMessageStyle = sanitize(messageStyle);
    const filter = {messageStyle: cleanMessageStyle};

    const result = await db.collection(collection).deleteMany(filter);

    if (result.deletedCount > 0) {
      return true;
    }

    if (result.deletedCount === 0) {
      return false;
    }

    throw new ApiError(httpStatus.NOT_FOUND, `MongoNotes could not remove notes`);
  }


}