india-holiday-1.0/index.js

A simple utility to check Indian holidays by date. Get festive greetings based on the current or given date.

const holidays = [
    { date: '01-01', name: "New Year's Day" },
    { date: '01-02', name: 'Last day of Hanukkah' },
    { date: '01-06', name: 'Guru Govind Singh Jayanti' },
    { date: '01-13', name: 'Lohri' },
    { date: '01-14', name: 'Pongal' },
    { date: '01-14', name: 'Makar Sankranti' },
    { date: '01-14', name: "Hazarat Ali's Birthday" },
    { date: '01-26', name: 'Republic Day' },
    { date: '01-29', name: 'Lunar New Year' },
    { date: '02-02', name: 'Vasant Panchami' },
    { date: '02-12', name: 'Guru Ravidas Jayanti' },
    { date: '02-14', name: "Valentine's Day" },
    { date: '02-19', name: 'Shivaji Jayanti' },
    { date: '02-23', name: 'Maharishi Dayanand Saraswati Jayanti' },
    { date: '02-26', name: 'Maha Shivaratri/Shivaratri' },
    { date: '03-02', name: 'Ramadan Start (Tentative Date)' },
    { date: '03-13', name: 'Holika Dahana' },
    { date: '03-14', name: 'Holi' },
    { date: '03-14', name: 'Dolyatra' },
    { date: '03-20', name: 'March Equinox' },
    { date: '03-28', name: 'Jamat Ul-Vida (Tentative Date)' },
    { date: '03-30', name: 'Chaitra Sukhladi' },
    { date: '03-30', name: 'Ugadi' },
    { date: '03-30', name: 'Gudi Padwa' },
    { date: '03-31', name: 'Ramzan Id/Eid-ul-Fitar (Tentative Date)' },
    { date: '04-10', name: 'Mahavir Janma Kalyanak' },
    { date: '04-14', name: 'Ambedkar Jayanti' },
    { date: '04-15', name: 'Pohela Boishakh and West Bengal Day' },
    { date: '05-01', name: 'Labour Day' },
    { date: '05-08', name: 'Rabindra Jayanti' },
    { date: '05-12', name: 'Pandit Raghunath Murmu Jayanti and Vesak' },
    { date: '06-06', name: 'Eid al-Adha' },
    { date: '06-07', name: 'Eid al-Adha' },
    { date: '08-15', name: 'Independence Day' },
    { date: '09-04', name: 'Mawlid' },
    { date: '09-30', name: 'Durga Ashtami' },
    { date: '10-01', name: 'Maha Navami' },
    { date: '10-02', name: 'Gandhi Jayanti' },
    { date: '10-06', name: 'Lakshmi Puja' },
    { date: '10-20', name: 'Diwali' },
    { date: '11-05', name: 'Guru Nanak Gurpurab' },
    { date: '12-25', name: 'Christmas Day' },
    { date: '12-31', name: 'Last Day of the Year' }
  ];
  
  const getHolidayMessage = (inputDate, useGradient = false) => {
    const dateObj = new Date(inputDate);
    if (isNaN(dateObj.getTime())) {
        return "Error in date: use 'new Date();'";
    }

    const formattedDate = dateObj.toISOString().slice(5, 10);
    const holiday = holidays.find(h => h.date === formattedDate);

    const gradientText = (text) => {
        const colors = ['\x1b[38;2;255;153;51m', '\x1b[38;2;0;0;255m', '\x1b[38;2;255;255;255m', '\x1b[38;2;19;136;8m'];
        let gradientApplied = '';
        const textLength = text.length;
        text.split('').forEach((char, index) => {
            const colorIndex = Math.floor((index / textLength) * colors.length);
            gradientApplied += colors[colorIndex] + char;
        });
        return gradientApplied + '\x1b[0m';
    };

    let message = holiday ? `Happy ${holiday.name},` : "Welcome,";
    return useGradient ? gradientText(message) : message;
};

module.exports = getHolidayMessage;