export const formatCurrency = (amount:number) => {
    // format number wirh 2 decimal places and a thousand separator
    // amount is in cents
    const formattedAmount = (amount/100).toFixed(2).replace(/\d(?=(\d{3})+\.)/g, '$&,');
    return(formattedAmount);
  }

/**
 * Formats an IBAN for display with proper spacing
 * Format: XX12 XXXX XXXX XXXX XXXX XX
 * First group: 2 letters (country) + 2 digits (check) = 4 chars
 * Following groups: 4 characters each
 * Last group: can be less than 4 characters
 * @param iban - IBAN string without spaces
 * @returns Formatted IBAN with spaces
 */
export const formatIban = (iban: string | null | undefined): string => {
    if (!iban) return "";

    // Remove any existing spaces
    const cleaned = iban.replace(/\s/g, '');

    // Split into groups: first 4 chars, then groups of 4
    const groups: string[] = [];
    for (let i = 0; i < cleaned.length; i += 4) {
        groups.push(cleaned.slice(i, i + 4));
    }

    return groups.join(' ');
}