Making Fredy an ESM project (#70)

Making Fredy an ESM project

lib/services/storage/LowDashAdapter.js

@@ -0,0 +1,8 @@
+import lodash from 'lodash';
+import { LowSync } from 'lowdb';
+export default class LowdashAdapter extends LowSync {
+  constructor(adapter) {
+    super(adapter);
+    this.chain = lodash.chain(this).get('data');
+  }
+}

lib/services/storage/jobStorage.js

@@ -1,28 +1,30 @@
-const path = require('path');
-const DB_PATH = path.dirname(require.main.filename) + '/db/jobs.json';
-const FileSync = require('lowdb/adapters/FileSync');
-const adapter = new FileSync(DB_PATH);
-const low = require('lowdb');
-const db = low(adapter);
-const { nanoid } = require('nanoid');
-const listingStorage = require('./listingsStorage');
+import { JSONFileSync } from 'lowdb/node';
+import { nanoid } from 'nanoid';
+import * as listingStorage from './listingsStorage.js';
+import { getDirName } from '../../utils.js';
+import path from 'path';
+import LowdashAdapter from './LowDashAdapter.js';
 
-db.defaults({ jobs: [] }).write();
+const file = path.join(getDirName(), '../', 'db/jobs.json');
+const adapter = new JSONFileSync(file);
+const db = new LowdashAdapter(adapter);
 
-exports.upsertJob = ({ jobId, name, blacklist = [], enabled = true, provider, notificationAdapter, userId }) => {
+db.read();
+
+db.data ||= { jobs: [] };
+
+export const upsertJob = ({ jobId, name, blacklist = [], enabled = true, provider, notificationAdapter, userId }) => {
   const currentJob =
     jobId == null
       ? null
-      : db
+      : db.chain
           .get('jobs')
           .find((job) => job.id === jobId)
           .value();
-
-  const jobs = db
+  const jobs = db.chain
     .get('jobs')
-    .value()
-    .filter((job) => job.id !== jobId);
-
+    .filter((job) => job.id !== jobId)
+    .value();
   jobs.push({
     id: jobId || nanoid(),
     //make sure to not overwrite the user id in case an admin changes the job
@@ -33,57 +35,55 @@ exports.upsertJob = ({ jobId, name, blacklist = [], enabled = true, provider, no
     provider,
     notificationAdapter,
   });
-
-  db.set('jobs', jobs).write();
+  db.chain.set('jobs', jobs).value();
+  db.write();
 };
-
-exports.getJob = (jobId) => {
-  const job = db
+export const getJob = (jobId) => {
+  const job = db.chain
     .get('jobs')
     .find((job) => job.id === jobId)
     .value();
-
   if (job == null) {
     return null;
   }
-
   return {
     ...job,
     numberOfFoundListings: listingStorage.getNumberOfAllKnownListings(job.id).length,
   };
 };
-
-exports.setJobStatus = ({ jobId, status }) => {
-  db.get('jobs')
+export const setJobStatus = ({ jobId, status }) => {
+  db.chain
+    .get('jobs')
     .find((job) => job.id === jobId)
     .assign({ enabled: status })
-    .write();
+    .value();
+  db.write();
 };
-
-exports.removeJob = (jobId) => {
+export const removeJob = (jobId) => {
   listingStorage.removeListings(jobId);
-  db.get('jobs')
+  db.chain
+    .get('jobs')
     .remove((job) => job.id === jobId)
-    .write();
+    .value();
+  db.write();
 };
-
-exports.removeJobsByUserId = (userId) => {
-  db.get('jobs')
-    .value()
+export const removeJobsByUserId = (userId) => {
+  db.chain
+    .get('jobs')
     .filter((job) => job.userId === userId)
     .forEach((job) => listingStorage.removeListings(job.id));
-
-  db.get('jobs')
-    .remove((job) => job.userId === userId)
-    .write();
-};
-
-exports.getJobs = () => {
-  return db
+  db.chain
+    .get('jobs')
+    .remove((job) => job.userId === userId)
+    .value();
+  db.write();
+};
+export const getJobs = () => {
+  return db.chain
     .get('jobs')
-    .value()
     .map((job) => ({
       ...job,
       numberOfFoundListings: listingStorage.getNumberOfAllKnownListings(job.id),
-    }));
+    }))
+    .value();
 };

lib/services/storage/listingsStorage.js

@@ -1,10 +1,15 @@
-const path = require('path');
+import { JSONFileSync } from 'lowdb/node';
+import { getDirName } from '../../utils.js';
+import path from 'path';
+import LowdashAdapter from './LowDashAdapter.js';
 
-const DB_PATH = path.dirname(require.main.filename) + '/db/jobListingData.json';
-const FileSync = require('lowdb/adapters/FileSync');
-const adapter = new FileSync(DB_PATH);
-const low = require('lowdb');
-const db = low(adapter);
+const file = path.join(getDirName(), '../', 'db/jobListingData.json');
+const adapter = new JSONFileSync(file);
+const db = new LowdashAdapter(adapter);
+
+db.read();
+
+db.data ||= {};
 
 const buildKey = (jobKey, providerId, endpoint) => {
   let key = `${jobKey}`;
@@ -19,35 +24,31 @@ const buildKey = (jobKey, providerId, endpoint) => {
   }
   return key;
 };
-
-exports.getNumberOfAllKnownListings = (jobId) => {
-  const data = db.get(`${jobId}.providerData`).value() || {};
+export const getNumberOfAllKnownListings = (jobId) => {
+  const data = db.chain.get(`${jobId}.providerData`).value() || {};
   return Object.values(data)
     .map((values) => Object.keys(values).length)
     .reduce((accumulator, currentValue) => accumulator + currentValue, 0);
 };
-
-exports.getListingProviderDataForAnalytics = (jobId) => {
+export const getListingProviderDataForAnalytics = (jobId) => {
   const key = buildKey(jobId, 'providerData');
-  return db.get(key).value() || {};
+  return db.chain.get(key).value() || {};
 };
-
-exports.getKnownListings = (jobId, providerId) => {
+export const getKnownListings = (jobId, providerId) => {
   const providerListingsKey = buildKey(jobId, 'providerData', providerId, 'listings');
-  return db.get(providerListingsKey).value() || {};
+  return db.chain.get(providerListingsKey).value() || {};
 };
-
-exports.setKnownListings = (jobId, providerId, listings) => {
+export const setKnownListings = (jobId, providerId, listings) => {
   const providerListingsKey = buildKey(jobId, 'providerData', providerId, 'listings');
-
-  return db.set(providerListingsKey, listings).write();
+  db.chain.set(providerListingsKey, listings).value();
+  return db.write();
 };
-
-exports.setLastJobExecution = (jobId) => {
+export const setLastJobExecution = (jobId) => {
   const key = buildKey(jobId, null, 'lastExecution');
-  return db.set(key, Date.now()).write();
+  db.chain.set(key, Date.now()).value();
+  return db.write();
 };
-
-exports.removeListings = (jobId) => {
-  db.unset(jobId).write();
+export const removeListings = (jobId) => {
+  db.chain.unset(jobId).value();
+  db.write();
 };

lib/services/storage/userStorage.js

@@ -1,14 +1,17 @@
-const path = require('path');
-const DB_PATH = path.dirname(require.main.filename) + '/db/users.json';
-const FileSync = require('lowdb/adapters/FileSync');
-const adapter = new FileSync(DB_PATH);
-const low = require('lowdb');
-const db = low(adapter);
-const hasher = require('../security/hash');
-const { nanoid } = require('nanoid');
-const jobStorage = require('./jobStorage');
+import { JSONFileSync } from 'lowdb/node';
+import { getDirName } from '../../utils.js';
+import * as hasher from '../security/hash.js';
+import { nanoid } from 'nanoid';
+import * as jobStorage from './jobStorage.js';
+import path from 'path';
+import LowdashAdapter from './LowDashAdapter.js';
 
-db.defaults({
+const file = path.join(getDirName(), '../', 'db/users.json');
+const adapter = new JSONFileSync(file);
+const db = new LowdashAdapter(adapter);
+
+db.read();
+db.data ||= {
   user: [
     //you probably want to change the default password ;)
     {
@@ -20,11 +23,11 @@ db.defaults({
       isDemo: false,
     },
   ],
-}).write();
+};
 
-exports.getUsers = (withPassword) => {
+export const getUsers = (withPassword) => {
   const jobs = jobStorage.getJobs();
-  return db
+  return db.chain
     .get('user')
     .value()
     .map((user) => ({
@@ -34,13 +37,12 @@ exports.getUsers = (withPassword) => {
       numberOfJobs: jobs.filter((job) => job.userId === user.id).length,
     }));
 };
-
-exports.getUser = (id) => {
+export const getUser = (id) => {
   const jobs = jobStorage.getJobs();
-  const user = db
+  const user = db.chain
     .get('user')
-    .value()
-    .find((user) => user.id === id);
+    .find((user) => user.id === id)
+    .value();
   if (user == null) {
     return null;
   }
@@ -49,13 +51,11 @@ exports.getUser = (id) => {
     numberOfJobs: jobs.filter((job) => job.userId === user.id).length,
   };
 };
-
-exports.upsertUser = ({ username, password, userId, isAdmin }) => {
-  const user = db
+export const upsertUser = ({ username, password, userId, isAdmin }) => {
+  const user = db.chain
     .get('user')
-    .value()
-    .filter((u) => u.id !== userId);
-
+    .filter((u) => u.id !== userId)
+    .value();
   user.push({
     id: userId || nanoid(),
     username,
@@ -63,21 +63,24 @@ exports.upsertUser = ({ username, password, userId, isAdmin }) => {
     password: hasher.hash(password),
     isAdmin,
   });
-
-  db.set('user', user).write();
+  db.chain.set('user', user).value();
+  db.write();
 };
-
-exports.setLastLoginToNow = ({ userId }) => {
-  db.get('user')
+export const setLastLoginToNow = ({ userId }) => {
+  db.chain
+    .get('user')
     .find((u) => u.id === userId)
     .assign({ lastLogin: Date.now() })
-    .write();
+    .value();
+  db.write();
 };
-
-exports.removeUser = (userId) => {
-  const user = db.get('user').value();
-  db.set(
-    'user',
-    user.filter((u) => u.id !== userId)
-  ).write();
+export const removeUser = (userId) => {
+  const user = db.chain.get('user').value();
+  db.chain
+    .set(
+      'user',
+      user.filter((u) => u.id !== userId)
+    )
+    .value();
+  db.write();
 };