feat: Convert to modules

cron-runner.js

@@ -1,6 +1,6 @@
-const cron = require('node-cron');
+import cron from 'node-cron';
-const { exec } = require('child_process');
+import { exec } from 'child_process';
-const { scheduleRules, toMinutes } = require('./scheduleRules');
+import { scheduleRules, toMinutes } from './scheduleRules.js';
 
 function runScraper() {
   console.log(`Running scraper at ${new Date().toLocaleString()}...`);

package-lock.json

@@ -13,7 +13,6 @@
         "concurrently": "^9.2.0",
         "express": "^5.1.0",
         "node-cron": "^4.2.1",
-        "node-fetch": "^3.3.2",
         "puppeteer": "^24.10.0",
         "xlsx": "^0.18.5"
       }
@@ -1019,29 +1018,6 @@
         "pend": "~1.2.0"
       }
     },
-    "node_modules/fetch-blob": {
-      "version": "3.2.0",
-      "resolved": "https://registry.npmjs.org/fetch-blob/-/fetch-blob-3.2.0.tgz",
-      "integrity": "sha512-7yAQpD2UMJzLi1Dqv7qFYnPbaPx7ZfFK6PiIxQ4PfkGPyNyl2Ugx+a/umUonmKqjhM4DnfbMvdX6otXq83soQQ==",
-      "funding": [
-        {
-          "type": "github",
-          "url": "https://github.com/sponsors/jimmywarting"
-        },
-        {
-          "type": "paypal",
-          "url": "https://paypal.me/jimmywarting"
-        }
-      ],
-      "license": "MIT",
-      "dependencies": {
-        "node-domexception": "^1.0.0",
-        "web-streams-polyfill": "^3.0.3"
-      },
-      "engines": {
-        "node": "^12.20 || >= 14.13"
-      }
-    },
     "node_modules/finalhandler": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/finalhandler/-/finalhandler-2.1.0.tgz",
@@ -1059,18 +1035,6 @@
         "node": ">= 0.8"
       }
     },
-    "node_modules/formdata-polyfill": {
-      "version": "4.0.10",
-      "resolved": "https://registry.npmjs.org/formdata-polyfill/-/formdata-polyfill-4.0.10.tgz",
-      "integrity": "sha512-buewHzMvYL29jdeQTVILecSaZKnt/RJWjoZCF5OW60Z67/GmSLBkOFM7qh1PI3zFNtJbaZL5eQu1vLfazOwj4g==",
-      "license": "MIT",
-      "dependencies": {
-        "fetch-blob": "^3.1.2"
-      },
-      "engines": {
-        "node": ">=12.20.0"
-      }
-    },
     "node_modules/forwarded": {
       "version": "0.2.0",
       "resolved": "https://registry.npmjs.org/forwarded/-/forwarded-0.2.0.tgz",
@@ -1506,53 +1470,6 @@
         "node": ">=6.0.0"
       }
     },
-    "node_modules/node-domexception": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/node-domexception/-/node-domexception-1.0.0.tgz",
-      "integrity": "sha512-/jKZoMpw0F8GRwl4/eLROPA3cfcXtLApP0QzLmUT/HuPCZWyB7IY9ZrMeKw2O/nFIqPQB3PVM9aYm0F312AXDQ==",
-      "deprecated": "Use your platform's native DOMException instead",
-      "funding": [
-        {
-          "type": "github",
-          "url": "https://github.com/sponsors/jimmywarting"
-        },
-        {
-          "type": "github",
-          "url": "https://paypal.me/jimmywarting"
-        }
-      ],
-      "license": "MIT",
-      "engines": {
-        "node": ">=10.5.0"
-      }
-    },
-    "node_modules/node-fetch": {
-      "version": "3.3.2",
-      "resolved": "https://registry.npmjs.org/node-fetch/-/node-fetch-3.3.2.tgz",
-      "integrity": "sha512-dRB78srN/l6gqWulah9SrxeYnxeddIG30+GOqK/9OlLVyLg3HPnr6SqOWTWOXKRwC2eGYCkZ59NNuSgvSrpgOA==",
-      "license": "MIT",
-      "dependencies": {
-        "data-uri-to-buffer": "^4.0.0",
-        "fetch-blob": "^3.1.4",
-        "formdata-polyfill": "^4.0.10"
-      },
-      "engines": {
-        "node": "^12.20.0 || ^14.13.1 || >=16.0.0"
-      },
-      "funding": {
-        "type": "opencollective",
-        "url": "https://opencollective.com/node-fetch"
-      }
-    },
-    "node_modules/node-fetch/node_modules/data-uri-to-buffer": {
-      "version": "4.0.1",
-      "resolved": "https://registry.npmjs.org/data-uri-to-buffer/-/data-uri-to-buffer-4.0.1.tgz",
-      "integrity": "sha512-0R9ikRb668HB7QDxT1vkpuUBtqc53YyAwMwGeUFKRojY/NWKvdZ+9UYtRfGmhqNbRkTSVpMbmyhXipFFv2cb/A==",
-      "license": "MIT",
-      "engines": {
-        "node": ">= 12"
-      }
-    },
     "node_modules/nth-check": {
       "version": "2.1.1",
       "resolved": "https://registry.npmjs.org/nth-check/-/nth-check-2.1.1.tgz",
@@ -2364,15 +2281,6 @@
         "node": ">= 0.8"
       }
     },
-    "node_modules/web-streams-polyfill": {
-      "version": "3.3.3",
-      "resolved": "https://registry.npmjs.org/web-streams-polyfill/-/web-streams-polyfill-3.3.3.tgz",
-      "integrity": "sha512-d2JWLCivmZYTSIoge9MsgFCZrt571BikcWGYkjC1khllbTeDlGqZ2D8vD8E/lJa8WGWbb7Plm8/XJYV7IJHZZw==",
-      "license": "MIT",
-      "engines": {
-        "node": ">= 8"
-      }
-    },
     "node_modules/whatwg-encoding": {
       "version": "3.1.1",
       "resolved": "https://registry.npmjs.org/whatwg-encoding/-/whatwg-encoding-3.1.1.tgz",

package.json

@@ -4,7 +4,7 @@
   "description": "",
   "license": "ISC",
   "author": "Jakub Žitník",
-  "type": "commonjs",
+  "type": "module",
   "main": "server.js",
   "scripts": {
     "start": "concurrently \"node server.js\" \"node cron-runner.js\""
@@ -14,7 +14,6 @@
     "concurrently": "^9.2.0",
     "express": "^5.1.0",
     "node-cron": "^4.2.1",
-    "node-fetch": "^3.3.2",
     "puppeteer": "^24.10.0",
     "xlsx": "^0.18.5"
   }

scheduleRules.js

@@ -1,5 +1,5 @@
 // Rules: start and end in 24h format, interval in minutes
-const scheduleRules = [
+export const scheduleRules = [
   { start: "0:00",  end: "3:00",  interval: 180 },
   { start: "3:00",  end: "4:00",  interval: 60 },
   { start: "5:00",  end: "6:00",  interval: 30 },
@@ -9,12 +9,12 @@ const scheduleRules = [
   { start: "19:00", end: "0:00",  interval: 180 }
 ];
 
-function toMinutes(timeStr) {
+export function toMinutes(timeStr) {
   const [h, m] = timeStr.split(":").map(Number);
   return h * 60 + (m || 0);
 }
 
-function getCurrentInterval(date = new Date()) {
+export function getCurrentInterval(date = new Date()) {
   const nowMinutes = date.getHours() * 60 + date.getMinutes();
 
   for (const rule of scheduleRules) {
@@ -35,9 +35,3 @@ function getCurrentInterval(date = new Date()) {
 
   return null;
 }
-
-module.exports = {
-  scheduleRules,
-  getCurrentInterval,
-  toMinutes
-};

scrape/parse.js

@@ -1,9 +1,9 @@
-const XLSX = require('xlsx');
+import XLSX from "xlsx";
-const fs = require("fs");
+import fs from "fs";
-const parseAbsence = require('./utils/parseAbsence');
+import parseAbsence from "./utils/parseAbsence.js";
-const parseTeachers = require('./utils/parseTeachers');
+import parseTeachers from "./utils/parseTeachers.js";
 
-async function parseThisShit(downloadedFilePath) {
+export default async function parseThisShit(downloadedFilePath) {
   const workbook = XLSX.readFile(downloadedFilePath);
   const sheetNames = workbook.SheetNames;
 
@@ -138,6 +138,4 @@ async function parseThisShit(downloadedFilePath) {
   fs.writeFileSync('db/current.json', JSON.stringify(data));
 }
 
-module.exports = parseThisShit;
-
 // parseThisShit("downloads/table.xlsx");

scrape/scraper.js

@@ -1,7 +1,7 @@
-const puppeteer = require('puppeteer');
+import puppeteer from 'puppeteer';
-const path = require('path');
+import path from 'path';
-const fs = require('fs');
+import fs from 'fs';
-const parseThisShit = require('./parse');
+import parseThisShit from './parse.js';
 
 const EMAIL = process.env.EMAIL;
 const PASSWORD = process.env.PASSWORD;

scrape/utils/parseAbsence.js

@@ -1,4 +1,4 @@
-function parseAbsence(str, teacherMap) {
+export default function parseAbsence(str, teacherMap) {
   str = str.trim().replace(/\s+/g, " ");
 
   const result = {
@@ -40,5 +40,3 @@ function parseAbsence(str, teacherMap) {
 
   return result;
 }
-
-module.exports = parseAbsence;

scrape/utils/parseTeachers.js

@@ -1,9 +1,8 @@
-const cheerio = require("cheerio");
+import * as cheerio from "cheerio";
-const fetch = require("node-fetch");
 
 globalThis.File = class File {};
 
-async function parseTeachers() {
+export default async function parseTeachers() {
   const url = "https://spsejecna.cz/ucitel";
   const response = await fetch(url);
   const data = await response.text(); // fetch needs .text() to get HTML
@@ -24,5 +23,3 @@ async function parseTeachers() {
 
   return map;
 }
-
-module.exports = parseTeachers;

server.js

@@ -1,8 +1,8 @@
-const express = require("express");
+import express from "express";
-const path = require("path");
+import path from "path";
 const app = express();
-const fs = require("fs/promises");
+import fs from "fs/promises";
-const { getCurrentInterval } = require("./scheduleRules");
+import { getCurrentInterval } from "./scheduleRules.js";
 
 const PORT = process.env.PORT || 3000;