lebanese-number-validator/index.js

Validates Lebanese phone numbers and identifies Alfa or Touch operators.

/**
 * Validates a Lebanese phone number and identifies the operator (Alfa or Touch).
 * @param {string} phoneNumber - The phone number to validate (e.g., +961XXXXXXXX or 961XXXXXXXX).
 * @returns {string|null} - Returns 'Alfa', 'Touch', or null if invalid.
 */
function verifyLebaneseNumber(phoneNumber) {
    const cleanNumber = phoneNumber.replace(/[^0-9]/g, ""); // Remove non-numeric characters

    if (!cleanNumber.startsWith("961") || cleanNumber.length < 8 || cleanNumber.length > 12) {
        return null; // Invalid format
    }

    // Mobile operator patterns
    const alfaPatterns = [
        /^961(31|32|33|34|35)\d{5}$/, // MIC1 (Alfa, 03 range)
        /^961(701|702|703|704|705)\d{4}$/, // MIC1 (Alfa, 070 range)
        /^961(716|717|718|719)\d{4}$/, // MIC1 (Alfa, 071 range)
        /^961(761|763|764|765)\d{4}$/, // MIC1 (Alfa, 076 range)
        /^961(791|792|793)\d{4}$/, // MIC1 (Alfa, 079 range)
        /^961(812|813|814)\d{4}$/, // MIC1 (Alfa, 081 range)
    ];

    const touchPatterns = [
        /^961(36|37|38|39)\d{5}$/, // MIC2 (Touch, 03 range)
        /^961(700|706|707|708|709)\d{4}$/, // MIC2 (Touch, 070 range)
        /^961(711|712|713|714|715)\d{4}$/, // MIC2 (Touch, 071 range)
        /^961(766|767|768|769)\d{4}$/, // MIC2 (Touch, 076 range)
        /^961(788|789)\d{4}$/, // MIC2 (Touch, 078 range)
        /^961(816|817|818)\d{4}$/, // MIC2 (Touch, 081 range)
    ];

    // Match against patterns
    if (alfaPatterns.some((regex) => regex.test(cleanNumber))) {
        return "Alfa";
    }

    if (touchPatterns.some((regex) => regex.test(cleanNumber))) {
        return "Touch";
    }

    return null; // Not valid for Alfa or Touch
}

module.exports = { verifyLebaneseNumber };