Add web-based duty schedule bonus calculator
Implements a complete web application for calculating bonus payments for weekend and holiday duty shifts according to NRW rules. Features: - Employee management (add/remove multiple employees) - Monthly duty scheduling (full and half shifts) - Automatic NRW holiday detection (2025-2030) - Bonus calculation with configurable rules - LocalStorage for data persistence - Export/Import functionality (JSON) - Responsive design for desktop and mobile - No external dependencies Calculation Rules: - Qualifying days: Friday, Saturday, Sunday, public holidays, day before holiday - Minimum threshold: 2.0 qualifying days required - Deduction: 1.0 qualifying day after threshold reached - Rates: Normal days 250€, qualifying days 450€ - Half shifts: 50% of respective rate - No bonus payment if threshold not reached Technical Stack: - Vanilla JavaScript (no frameworks) - HTML5 & CSS3 - LocalStorage API - Modern, gradient-based UI design Files: - webapp/index.html - Main HTML interface - webapp/styles.css - Responsive styling - webapp/app.js - Main application logic and UI handling - webapp/calculator.js - Bonus calculation engine - webapp/holidays.js - NRW public holidays provider - webapp/storage.js - LocalStorage data management - webapp/README.md - Comprehensive documentation Updated main README.md to include web app in available versions.
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webapp/holidays.js
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156
webapp/holidays.js
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/**
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* NRW Public Holidays Provider
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* Provides holidays for NRW (Nordrhein-Westfalen) from 2025-2030
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*/
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class HolidayProvider {
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constructor() {
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this.holidays = this.initializeHolidays();
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}
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initializeHolidays() {
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return {
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2025: [
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{ date: '2025-01-01', name: 'Neujahr' },
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{ date: '2025-04-18', name: 'Karfreitag' },
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{ date: '2025-04-21', name: 'Ostermontag' },
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{ date: '2025-05-01', name: 'Tag der Arbeit' },
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{ date: '2025-05-29', name: 'Christi Himmelfahrt' },
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{ date: '2025-06-09', name: 'Pfingstmontag' },
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{ date: '2025-06-19', name: 'Fronleichnam' },
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{ date: '2025-10-03', name: 'Tag der Deutschen Einheit' },
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{ date: '2025-11-01', name: 'Allerheiligen' },
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{ date: '2025-12-25', name: '1. Weihnachtstag' },
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{ date: '2025-12-26', name: '2. Weihnachtstag' }
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],
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2026: [
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{ date: '2026-01-01', name: 'Neujahr' },
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{ date: '2026-04-03', name: 'Karfreitag' },
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{ date: '2026-04-06', name: 'Ostermontag' },
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{ date: '2026-05-01', name: 'Tag der Arbeit' },
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{ date: '2026-05-14', name: 'Christi Himmelfahrt' },
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{ date: '2026-05-25', name: 'Pfingstmontag' },
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{ date: '2026-06-04', name: 'Fronleichnam' },
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{ date: '2026-10-03', name: 'Tag der Deutschen Einheit' },
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{ date: '2026-11-01', name: 'Allerheiligen' },
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{ date: '2026-12-25', name: '1. Weihnachtstag' },
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{ date: '2026-12-26', name: '2. Weihnachtstag' }
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],
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2027: [
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{ date: '2027-01-01', name: 'Neujahr' },
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{ date: '2027-03-26', name: 'Karfreitag' },
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{ date: '2027-03-29', name: 'Ostermontag' },
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{ date: '2027-05-01', name: 'Tag der Arbeit' },
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{ date: '2027-05-06', name: 'Christi Himmelfahrt' },
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{ date: '2027-05-17', name: 'Pfingstmontag' },
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{ date: '2027-05-27', name: 'Fronleichnam' },
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{ date: '2027-10-03', name: 'Tag der Deutschen Einheit' },
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{ date: '2027-11-01', name: 'Allerheiligen' },
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{ date: '2027-12-25', name: '1. Weihnachtstag' },
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{ date: '2027-12-26', name: '2. Weihnachtstag' }
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],
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2028: [
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{ date: '2028-01-01', name: 'Neujahr' },
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{ date: '2028-04-14', name: 'Karfreitag' },
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{ date: '2028-04-17', name: 'Ostermontag' },
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{ date: '2028-05-01', name: 'Tag der Arbeit' },
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{ date: '2028-05-25', name: 'Christi Himmelfahrt' },
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{ date: '2028-06-05', name: 'Pfingstmontag' },
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{ date: '2028-06-15', name: 'Fronleichnam' },
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{ date: '2028-10-03', name: 'Tag der Deutschen Einheit' },
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{ date: '2028-11-01', name: 'Allerheiligen' },
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{ date: '2028-12-25', name: '1. Weihnachtstag' },
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{ date: '2028-12-26', name: '2. Weihnachtstag' }
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],
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2029: [
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{ date: '2029-01-01', name: 'Neujahr' },
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{ date: '2029-03-30', name: 'Karfreitag' },
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{ date: '2029-04-02', name: 'Ostermontag' },
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{ date: '2029-05-01', name: 'Tag der Arbeit' },
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{ date: '2029-05-10', name: 'Christi Himmelfahrt' },
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{ date: '2029-05-21', name: 'Pfingstmontag' },
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{ date: '2029-05-31', name: 'Fronleichnam' },
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{ date: '2029-10-03', name: 'Tag der Deutschen Einheit' },
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{ date: '2029-11-01', name: 'Allerheiligen' },
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{ date: '2029-12-25', name: '1. Weihnachtstag' },
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{ date: '2029-12-26', name: '2. Weihnachtstag' }
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],
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2030: [
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{ date: '2030-01-01', name: 'Neujahr' },
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{ date: '2030-04-19', name: 'Karfreitag' },
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{ date: '2030-04-22', name: 'Ostermontag' },
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{ date: '2030-05-01', name: 'Tag der Arbeit' },
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{ date: '2030-05-30', name: 'Christi Himmelfahrt' },
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{ date: '2030-06-10', name: 'Pfingstmontag' },
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{ date: '2030-06-20', name: 'Fronleichnam' },
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{ date: '2030-10-03', name: 'Tag der Deutschen Einheit' },
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{ date: '2030-11-01', name: 'Allerheiligen' },
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{ date: '2030-12-25', name: '1. Weihnachtstag' },
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{ date: '2030-12-26', name: '2. Weihnachtstag' }
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]
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};
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}
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/**
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* Check if a given date is a public holiday
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* @param {Date} date - Date to check
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* @returns {boolean}
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*/
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isHoliday(date) {
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const year = date.getFullYear();
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const dateStr = this.formatDate(date);
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if (!this.holidays[year]) return false;
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return this.holidays[year].some(h => h.date === dateStr);
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}
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/**
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* Check if a given date is the day before a public holiday
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* @param {Date} date - Date to check
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* @returns {boolean}
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*/
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isDayBeforeHoliday(date) {
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const nextDay = new Date(date);
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nextDay.setDate(nextDay.getDate() + 1);
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return this.isHoliday(nextDay);
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}
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/**
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* Get holiday name for a given date (if it is a holiday)
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* @param {Date} date - Date to check
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* @returns {string|null}
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*/
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getHolidayName(date) {
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const year = date.getFullYear();
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const dateStr = this.formatDate(date);
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if (!this.holidays[year]) return null;
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const holiday = this.holidays[year].find(h => h.date === dateStr);
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return holiday ? holiday.name : null;
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}
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/**
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* Format date as YYYY-MM-DD
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* @param {Date} date
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* @returns {string}
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*/
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formatDate(date) {
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const year = date.getFullYear();
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const month = String(date.getMonth() + 1).padStart(2, '0');
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const day = String(date.getDate()).padStart(2, '0');
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return `${year}-${month}-${day}`;
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}
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/**
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* Get all holidays for a specific year
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* @param {number} year
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* @returns {Array}
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*/
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getHolidaysForYear(year) {
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return this.holidays[year] || [];
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}
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}
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// Make it available globally
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window.HolidayProvider = HolidayProvider;
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