Making Fredy an ESM project (#70)

Making Fredy an ESM project

lib/notification/adapter/console.js

@@ -1,19 +1,12 @@
-const { markdown2Html } = require('../../services/markdown');
+import { markdown2Html } from '../../services/markdown.js';
 
-/**
- * simply prints out the found data to the console
- * @param serviceName e.g immowelt
- * @param newListings an array with newly found listings
- * @param jobKey name of the current job that is being executed
- */
-exports.send = ({ serviceName, newListings, jobKey }) => {
+export const send = ({ serviceName, newListings, jobKey }) => {
   /* eslint-disable no-console */
   return [Promise.resolve(console.info(`Found entry from service ${serviceName}, Job: ${jobKey}:`, newListings))];
   /* eslint-enable no-console */
 };
-
-exports.config = {
-  id: __filename.slice(__dirname.length + 1, -3),
+export const config = {
+  id: 'console',
   name: 'Console',
   description: 'This adapter sends new listings to the console. It is mostly useful for debugging.',
   config: {},

lib/notification/adapter/mailJet.js

@@ -1,33 +1,22 @@
-const mailjet = require('node-mailjet');
-
-const path = require('path');
-const fs = require('fs');
-const template = fs.readFileSync(path.resolve(__dirname, '../', 'emailTemplate/template.hbs'), 'utf8');
-
-const Handlebars = require('handlebars');
+import mailjet from 'node-mailjet';
+import path from 'path';
+import fs from 'fs';
+import Handlebars from 'handlebars';
+import { markdown2Html } from '../../services/markdown.js';
+import { getDirName } from '../../utils.js';
+const __dirname = getDirName();
+const template = fs.readFileSync(path.resolve(__dirname + '/notification/emailTemplate/template.hbs'), 'utf8');
 const emailTemplate = Handlebars.compile(template);
-const { markdown2Html } = require('../../services/markdown');
-
-/**
- * sends a new listing using MailJet
- * @param serviceName e.g immowelt
- * @param newListings an array with newly found listings
- * @param notificationConfig config of this notification adapter
- * * @param jobKey name of the current job that is being executed
- * @returns {Promise<Chat.PostMessage.Response> | void}
- */
-exports.send = ({ serviceName, newListings, notificationConfig, jobKey }) => {
+export const send = ({ serviceName, newListings, notificationConfig, jobKey }) => {
   const { apiPublicKey, apiPrivateKey, receiver, from } = notificationConfig.find(
     (adapter) => adapter.id === 'mailJet'
   ).fields;
-
   const to = receiver
     .trim()
     .split(',')
     .map((r) => ({
       Email: r.trim(),
     }));
-
   return mailjet
     .connect(apiPublicKey, apiPrivateKey)
     .post('send', { version: 'v3.1' })
@@ -49,9 +38,8 @@ exports.send = ({ serviceName, newListings, notificationConfig, jobKey }) => {
       ],
     });
 };
-
-exports.config = {
-  id: __filename.slice(__dirname.length + 1, -3),
+export const config = {
+  id: 'mailjet',
   name: 'MailJet',
   description: 'MailJet is being used to send new listings via mail.',
   readme: markdown2Html('lib/notification/adapter/mailJet.md'),

lib/notification/adapter/mattermost.js

@@ -1,26 +1,15 @@
-const { markdown2Html } = require('../../services/markdown');
-const { getJob } = require('../../services/storage/jobStorage');
-const fetch = require('node-fetch');
-
-/**
- * sends new listings to mattermost
- * @param serviceName e.g immowelt
- * @param newListings an array with newly found listings
- * @param notificationConfig config of this notification adapter
- * @param jobKey name of the current job that is being executed
- * @returns {Promise<Void> | void}
- */
-exports.send = ({ serviceName, newListings, notificationConfig, jobKey }) => {
+import { markdown2Html } from '../../services/markdown.js';
+import { getJob } from '../../services/storage/jobStorage.js';
+import fetch from 'node-fetch';
+export const send = ({ serviceName, newListings, notificationConfig, jobKey }) => {
   const { webhook, channel } = notificationConfig.find((adapter) => adapter.id === 'mattermost').fields;
   const job = getJob(jobKey);
   const jobName = job == null ? jobKey : job.name;
-
   let message = `### *${jobName}* (${serviceName}) found **${newListings.length}** new listings:\n\n`;
   message += `| Title | Address | Size | Price |\n|:----|:----|:----|:----|\n`;
   message += newListings.map(
     (o) => `| [${o.title}](${o.link}) | ` + [o.address, o.size.replace(/2m/g, '$m^2$'), o.price].join(' | ') + ' |\n'
   );
-
   return fetch(webhook, {
     method: 'POST',
     headers: { 'Content-Type': 'application/json' },
@@ -30,14 +19,8 @@ exports.send = ({ serviceName, newListings, notificationConfig, jobKey }) => {
     },
   });
 };
-
-/**
- * exported config is being used in the frontend to generate the fields
- * incoming values will be the keys (and values) of the fields
- *
- */
-exports.config = {
-  id: __filename.slice(__dirname.length + 1, -3),
+export const config = {
+  id: 'mattermost',
   name: 'Mattermost',
   readme: markdown2Html('lib/notification/adapter/mattermost.md'),
   description: 'Fredy will send new listings to your mattermost team chat.',

lib/notification/adapter/sendGrid.js

@@ -1,15 +1,6 @@
-const sgMail = require('@sendgrid/mail');
-const { markdown2Html } = require('../../services/markdown');
-
-/**
- * sends a new listing using SendGrid
- * @param serviceName e.g immowelt
- * @param newListings an array with newly found listings
- * @param notificationConfig config of this notification adapter
- * @param jobKey name of the current job that is being executed
- * @returns {Promise<Chat.PostMessage.Response> | void}
- */
-exports.send = ({ serviceName, newListings, notificationConfig, jobKey }) => {
+import sgMail from '@sendgrid/mail';
+import { markdown2Html } from '../../services/markdown.js';
+export const send = ({ serviceName, newListings, notificationConfig, jobKey }) => {
   const { apiKey, receiver, from, templateId } = notificationConfig.find((adapter) => adapter.id === 'sendGrid').fields;
   sgMail.setApiKey(apiKey);
   const msg = {
@@ -28,9 +19,8 @@ exports.send = ({ serviceName, newListings, notificationConfig, jobKey }) => {
   };
   return sgMail.send(msg);
 };
-
-exports.config = {
-  id: __filename.slice(__dirname.length + 1, -3),
+export const config = {
+  id: 'sendgrid',
   name: 'SendGrid',
   description: 'SendGrid is being used to send new listings via mail.',
   readme: markdown2Html('lib/notification/adapter/sendGrid.md'),

lib/notification/adapter/slack.js

@@ -1,16 +1,7 @@
-const Slack = require('slack');
+import Slack from 'slack';
+import { markdown2Html } from '../../services/markdown.js';
 const msg = Slack.chat.postMessage;
-const { markdown2Html } = require('../../services/markdown');
-
-/**
- * sends a new listing to slack
- * @param serviceName e.g immowelt
- * @param newListings an array with newly found listings
- * @param notificationConfig config of this notification adapter
- * * @param jobKey name of the current job that is being executed
- * @returns {Promise<Chat.PostMessage.Response> | void}
- */
-exports.send = ({ serviceName, newListings, notificationConfig, jobKey }) => {
+export const send = ({ serviceName, newListings, notificationConfig, jobKey }) => {
   const { token, channel } = notificationConfig.find((adapter) => adapter.id === 'slack').fields;
   return newListings.map((payload) =>
     msg({
@@ -47,9 +38,8 @@ exports.send = ({ serviceName, newListings, notificationConfig, jobKey }) => {
     })
   );
 };
-
-exports.config = {
-  id: __filename.slice(__dirname.length + 1, -3),
+export const config = {
+  id: 'slack',
   name: 'Slack',
   readme: markdown2Html('lib/notification/adapter/slack.md'),
   description: 'Fredy will send new listings to the slack channel of your choice..',

lib/notification/adapter/sqlite.js

@@ -1,13 +1,6 @@
-const { markdown2Html } = require('../../services/markdown');
-const Database = require('better-sqlite3');
-
-/**
- * Stores data in a sqlite db in order to use the search results for later analytics
- * @param serviceName e.g immowelt
- * @param newListings an array with newly found listings
- * @param jobKey name of the current job that is being executed
- */
-exports.send = ({ serviceName, newListings, jobKey }) => {
+import { markdown2Html } from '../../services/markdown.js';
+import Database from 'better-sqlite3';
+export const send = ({ serviceName, newListings, jobKey }) => {
   const db = new Database('db/listings.db');
   const fields = ['serviceName', 'jobKey', 'id', 'size', 'rooms', 'price', 'address', 'title', 'link', 'description'];
   db.prepare(`CREATE TABLE IF NOT EXISTS listing (${fields.join(' TEXT, ')} TEXT);`).run();
@@ -23,9 +16,8 @@ exports.send = ({ serviceName, newListings, jobKey }) => {
   });
   return Promise.resolve();
 };
-
-exports.config = {
-  id: __filename.slice(__dirname.length + 1, -3),
+export const config = {
+  id: 'sqlite',
   name: 'Sqlite',
   description: 'This adapter stores listings in a local sqlite3 database.',
   config: {},

lib/notification/adapter/telegram.js

@@ -1,7 +1,6 @@
-const { markdown2Html } = require('../../services/markdown');
-const { getJob } = require('../../services/storage/jobStorage');
-const fetch = require('node-fetch');
-
+import { markdown2Html } from '../../services/markdown.js';
+import { getJob } from '../../services/storage/jobStorage.js';
+import fetch from 'node-fetch';
 const MAX_ENTITIES_PER_CHUNK = 8;
 const RATE_LIMIT_INTERVAL = 1010;
 /**
@@ -16,32 +15,23 @@ const arrayChunks = (inputArray, perChunk) =>
     all[ch] = [].concat(all[ch] || [], one);
     return all;
   }, []);
-
-/**
- * sends new listings to telegram
- * @param serviceName e.g immowelt
- * @param newListings an array with newly found listings
- * @param notificationConfig config of this notification adapter
- * @param jobKey name of the current job that is being executed
- * @returns {Promise<Void> | void}
- */
-exports.send = ({ serviceName, newListings, notificationConfig, jobKey }) => {
+function shorten(str, len = 30) {
+  return str.length > len ? str.substring(0, len) + '...' : str;
+}
+export const send = ({ serviceName, newListings, notificationConfig, jobKey }) => {
   const { token, chatId } = notificationConfig.find((adapter) => adapter.id === 'telegram').fields;
   const job = getJob(jobKey);
   const jobName = job == null ? jobKey : job.name;
-
   //we have to split messages into chunk, because otherwise messages are going to become too big and will fail
   const chunks = arrayChunks(newListings, MAX_ENTITIES_PER_CHUNK);
-
   const promises = chunks.map((chunk) => {
     let message = `<i>${jobName}</i> (${serviceName}) found <b>${newListings.length}</b> new listings:\n\n`;
     message += chunk.map(
       (o) =>
-        `<a href="${o.link}"><b>${shorten(o.title.replace(/\*/g, ''), 45).trim()}</b></a>\n` +
+        `<a href='${o.link}'><b>${shorten(o.title.replace(/\*/g, ''), 45).trim()}</b></a>\n` +
         [o.address, o.price, o.size].join(' | ') +
         '\n\n'
     );
-
     /**
      * This is to not break the rate limit. It is to only send 1 message per second
      */
@@ -66,21 +56,10 @@ exports.send = ({ serviceName, newListings, notificationConfig, jobKey }) => {
       }, RATE_LIMIT_INTERVAL);
     });
   });
-
   return Promise.all(promises);
 };
-
-function shorten(str, len = 30) {
-  return str.length > len ? str.substring(0, len) + '...' : str;
-}
-
-/**
- * exported config is being used in the frontend to generate the fields
- * incoming values will be the keys (and values) of the fields
- *
- */
-exports.config = {
-  id: __filename.slice(__dirname.length + 1, -3),
+export const config = {
+  id: 'telegram',
   name: 'Telegram',
   readme: markdown2Html('lib/notification/adapter/telegram.md'),
   description: 'Fredy will send new listings to your mobile, using Telegram.',

lib/notification/notify.js

@@ -1,24 +1,24 @@
-const fs = require('fs');
+import fs from 'fs';
 const path = './adapter';
 
 /** Read every integration existing in ./adapter **/
-const adapter = fs
-  .readdirSync('./lib/notification/adapter')
-  .filter((file) => file.endsWith('.js'))
-  .map((integPath) => require(`${path}/${integPath}`));
+const adapter = await Promise.all(
+  fs
+    .readdirSync('./lib/notification/adapter')
+    .filter((file) => file.endsWith('.js'))
+    .map(async (integPath) => await import(`${path}/${integPath}`))
+);
 
 if (adapter.length === 0) {
   throw new Error('Please specify at least one notification provider');
 }
-
-exports.send = (serviceName, newListings, notificationConfig, jobKey) => {
+const findAdapter = (notificationAdapter) => {
+  return adapter.find((a) => a.config.id === notificationAdapter.id);
+};
+export const send = (serviceName, newListings, notificationConfig, jobKey) => {
   //this is not being used in tests, therefore adapter are always set
   return notificationConfig
     .filter((notificationAdapter) => findAdapter(notificationAdapter) != null)
     .map((notificationAdapter) => findAdapter(notificationAdapter))
     .map((a) => a.send({ serviceName, newListings, notificationConfig, jobKey }));
 };
-
-const findAdapter = (notificationAdapter) => {
-  return adapter.find((a) => a.config.id === notificationAdapter.id);
-};