Voucher Number Studio

/**
 * Google Payment Approval System — Voucher Number Generation
 * Auto-generated reference. Contoh saat ini:
 *   Payment Voucher -> 046/GLC-AS/PB/IX/2026
 *   Rekap           -> AS2609-001
 */

// 01=I, 02=II, ... 12=XII
function monthToRoman(month) {
  const map = ['', 'I', 'II', 'III', 'IV', 'V', 'VI',
               'VII', 'VIII', 'IX', 'X', 'XI', 'XII'];
  return map[month] || '';
}

function pad(value, length) {
  return String(value).padStart(length, '0');
}

// Format: (No)/GLC-AS/PB/(bulan romawi)/(tahun)
// Contoh:  046/GLC-AS/PB/VIII/2026
function generateVoucherNumber(sequence, month, year) {
  return pad(sequence, 3) + '/GLC-AS/PB/' + monthToRoman(month) + '/' + year;
}

// Format: AS(TAHUN)(BULAN)-(NOMOR URUT)   [reset tiap bulan]
// Contoh:  AS2609-001
function generateRekapNumber(sequence, month, year) {
  const yy = String(year).slice(-2);
  return 'AS' + yy + pad(month, 2) + '-' + pad(sequence, 3);
}