Merge pull request 'feat/parsing-script' (#23) from feat/parsing-script into main

Reviewed-on: #23

src/main.jsx

@@ -1,6 +1,7 @@
 import _ from 'lodash'
 import { render } from 'preact'
 import { useEffect, useState } from 'preact/hooks'
+import semesterData from './semester-data.json'
 
 // import { ToolOverlay } from './components/ToolOverlay.jsx'
 //
@@ -32,12 +33,7 @@ window._ = _
 window.dataBuffer = {}
 
 // NOTA: magistrale *non* è quello con i corsi a cavallo
-const TIMETABLE_IDS = {
-    'anno-1': '687e66d62d13e6001edd366d',
-    'anno-2': '687e681301ee9300198320e6',
-    'anno-3': '687e68bb01ee9300198320eb',
-    'magistrale': '687e6a9f96ea080019d439d5',
-}
+const TIMETABLE_IDS = semesterData.timetableIds
 
 // const DEFAULT_DATE_RANGE = {
 //     from: '2023-10-09T00:00:00.000Z',
@@ -267,10 +263,10 @@ const App = ({}) => {
                             </p>
                             <button
                                 onClick={() => {
-                                    setDate('2025-09-29T00:00:00.000Z')
+                                    setDate(semesterData.firstMondayDate)
                                 }}
                             >
-                                Vai al 29 settembre! 🚀
+                                {semesterData.buttonText}
                             </button>
 
                             {/* <p>

src/scripts/update-semester-data.js

@@ -0,0 +1,186 @@
+#!/usr/bin/env node
+
+// Manual update script for semester timetable data
+// Run this script manually each semester to update timetable IDs and dates
+// Usage: node src/scripts/update-semester-data.js
+
+import https from 'https';
+import fs from 'fs';
+
+// Get current academic year
+function getCurrentAcademicYear() {
+    const now = new Date();
+    const currentYear = now.getFullYear();
+    const currentMonth = now.getMonth(); // 0-based
+    
+    // Academic year starts in September, but August belongs to the new year
+    const startYear = currentMonth >= 7 ? currentYear : currentYear - 1;
+    const endYear = startYear + 1;
+    
+    return { startYear, endYear };
+}
+
+// Fetch webpage content
+function fetchPage(url) {
+    return new Promise((resolve, reject) => {
+        https.get(url, (res) => {
+            let data = '';
+            
+            res.on('data', (chunk) => {
+                data += chunk;
+            });
+            
+            res.on('end', () => {
+                resolve(data);
+            });
+        }).on('error', (err) => {
+            reject(err);
+        });
+    });
+}
+
+// Parse timetable IDs from the schedule page
+async function parseTimetableIds() {
+    try {
+        const html = await fetchPage('https://www.dm.unipi.it/didattica/lezioni-esami/orario-delle-lezioni/');
+        const ids = {};
+        
+        // Extract links with their text to match correctly
+        const linkPattern = /<a[^>]*href="[^"]*linkCalendarioId=([a-f0-9]{24})"[^>]*>([^<]+)<\/a>/g;
+        const links = [...html.matchAll(linkPattern)];
+        
+        for (const [fullMatch, id, text] of links) {
+            const cleanText = text.trim();
+            
+            if (cleanText === 'Triennale I anno') {
+                ids['anno-1'] = id;
+            } else if (cleanText === 'Triennale II anno') {
+                ids['anno-2'] = id;
+            } else if (cleanText === 'Triennale III anno') {
+                ids['anno-3'] = id;
+            } else if (cleanText === 'Magistrale') {
+                ids['magistrale'] = id;
+            }
+        }
+        
+        return Object.keys(ids).length > 0 ? ids : null;
+    } catch (error) {
+        console.error('Error parsing timetable IDs:', error.message);
+        return null;
+    }
+}
+
+// Parse semester start date from calendar page
+async function parseSemesterStartDate() {
+    try {
+        const { startYear, endYear } = getCurrentAcademicYear();
+        const currentMonth = new Date().getMonth();
+        const currentSemester = currentMonth >= 1 && currentMonth <= 6 ? 2 : 1;
+        
+        const url = `https://www.dm.unipi.it/didattica/lezioni-esami/calendario-delle-attivita-didattiche/calendario-delle-attivita-didattiche-a-a-${startYear}-${endYear.toString().slice(-2)}/`;
+        
+        const html = await fetchPage(url);
+        
+        // Look for the appropriate semester start date
+        const semesterText = currentSemester === 1 ? 'I semestre' : 'II semestre';
+        const semesterRegex = new RegExp(`Lezioni\\s+${semesterText}.*?(\\d{1,2}\\s+\\w+\\s+\\d{4})`, 'si');
+        const match = html.match(semesterRegex);
+        
+        if (match) {
+            return match[1];
+        } else {
+            console.error(`Could not find ${semesterText} start date in calendar`);
+            return null;
+        }
+    } catch (error) {
+        console.error('Error parsing semester start date:', error.message);
+        return null;
+    }
+}
+
+// Find the first Monday after a given date string
+function getFirstMondayAfter(dateStr) {
+    // Parse Italian date format (e.g., "24 settembre 2025")
+    const [day, monthName, year] = dateStr.split(' ');
+    
+    const monthMap = {
+        'gennaio': 0, 'febbraio': 1, 'marzo': 2, 'aprile': 3,
+        'maggio': 4, 'giugno': 5, 'luglio': 6, 'agosto': 7,
+        'settembre': 8, 'ottobre': 9, 'novembre': 10, 'dicembre': 11
+    };
+    
+    const month = monthMap[monthName.toLowerCase()];
+    if (month === undefined) {
+        throw new Error(`Unknown month: ${monthName}`);
+    }
+    
+    const startDate = new Date(parseInt(year), month, parseInt(day));
+    const dayOfWeek = startDate.getDay(); // 0=Sunday, 1=Monday, etc.
+    
+    // Calculate days to add to get to the next Monday
+    let daysToAdd;
+    if (dayOfWeek === 0) { // Sunday
+        daysToAdd = 1; // Next day is Monday
+    } else if (dayOfWeek === 1) { // Monday
+        daysToAdd = 7; // Next Monday
+    } else { // Tuesday-Saturday (2-6)
+        daysToAdd = 8 - dayOfWeek; // Days until next Monday
+    }
+    
+    const result = new Date(startDate);
+    result.setDate(startDate.getDate() + daysToAdd);
+    
+    // Create a new date in UTC to avoid timezone issues with the calendar
+    return new Date(Date.UTC(result.getFullYear(), result.getMonth(), result.getDate()));
+}
+
+// Format date for button text (Italian format)
+function formatDateForButton(date) {
+    const day = date.getUTCDate();
+    const monthNames = [
+        'gennaio', 'febbraio', 'marzo', 'aprile', 'maggio', 'giugno',
+        'luglio', 'agosto', 'settembre', 'ottobre', 'novembre', 'dicembre'
+    ];
+    const month = monthNames[date.getUTCMonth()];
+    
+    return `${day} ${month}`;
+}
+
+// Main function
+async function updateAcademicData() {
+    const [timetableIds, semesterStartDateStr] = await Promise.all([
+        parseTimetableIds(),
+        parseSemesterStartDate()
+    ]);
+    
+    // Fail fast if parsing failed
+    if (!timetableIds) {
+        throw new Error('Failed to parse timetable IDs from the website');
+    }
+    
+    if (!semesterStartDateStr) {
+        throw new Error('Failed to parse semester start date from the calendar');
+    }
+    
+    const firstMonday = getFirstMondayAfter(semesterStartDateStr);
+    
+    const semesterData = {
+        timetableIds,
+        semesterStartDateStr,
+        firstMondayDate: firstMonday.toISOString(),
+        buttonText: `Vai al ${formatDateForButton(firstMonday)}! 🚀`,
+        lastUpdated: new Date().toISOString(),
+        academicYear: getCurrentAcademicYear()
+    };
+
+    // Save to src/semester-data.json
+    fs.writeFileSync('src/semester-data.json', JSON.stringify(semesterData, null, 2));
+
+    console.log('✅ Semester data updated successfully');
+}
+
+// Run the script
+updateAcademicData().catch(error => {
+    console.error('💥 Script failed:', error);
+    process.exit(1);
+});

src/semester-data.json

@@ -0,0 +1,16 @@
+{
+  "timetableIds": {
+    "anno-1": "687e66d62d13e6001edd366d",
+    "anno-2": "687e681301ee9300198320e6",
+    "anno-3": "687e68bb01ee9300198320eb",
+    "magistrale": "687e6a9f96ea080019d439d5"
+  },
+  "semesterStartDateStr": "24 settembre 2025",
+  "firstMondayDate": "2025-09-29T00:00:00.000Z",
+  "buttonText": "Vai al 29 settembre! 🚀",
+  "lastUpdated": "2025-08-28T13:15:33.748Z",
+  "academicYear": {
+    "startYear": 2025,
+    "endYear": 2026
+  }
+}