科威特电话号码：格式、区号和验证指南

/**
 * Validates a Kuwaiti phone number.
 *
 * @param {string} phoneNumber The phone number to validate.
 * @returns {object} An object containing validation results (isValid, type, formatted, original, error).
 */
function validateKuwaitPhoneNumber(phoneNumber) {
  // Sanitize input: Remove whitespace, hyphens, parentheses
  const cleanNumber = phoneNumber.replace(/[\s\-\(\)]/g, '');

  // Validation patterns
  const patterns = {
    landline: /^2[0-9]{7}$/,
    mobile: /^[569][0-9]{7}$/,
    corporate: /^18[0-9]{5}$/,
    tollFree: /^180[0-9]{5}$/,
    emergency: /^1[0-9]{2}$/,
    governmentHotline: /^159$/,
  };

  // Handle international format (+965)
  let nationalNumber = cleanNumber;
  if (cleanNumber.startsWith('+965')) {
    nationalNumber = cleanNumber.substring(4);
  } else if (cleanNumber.startsWith('00965')) { // Also handle 00965 prefix
    nationalNumber = cleanNumber.substring(5);
  }

  // Validate against patterns
  for (const type in patterns) {
    if (patterns[type].test(nationalNumber)) {
      return {
        isValid: true,
        type: type,
        formatted: `+965${nationalNumber}`, // E.164 format
        original: phoneNumber,
      };
    }
  }

  // Invalid format
  return {
    isValid: false,
    error: 'Invalid Kuwait phone number format',
    original: phoneNumber,
  };
}


// Example usage and test cases:
const testNumbers = [
  '22345678', '+96551234567', '1800123', '159', '112', '0096561234567', // Valid examples
  '1234567', '+965123456789', '96551234567', '5123456', // Invalid examples
];

testNumbers.forEach(number => {
  const result = validateKuwaitPhoneNumber(number);
  console.log(`${number}: `, result);
});

async function validateWithMNP(number) {
  const baseValidation = validateKuwaitPhoneNumber(number);
  if (baseValidation.isValid && baseValidation.type === 'mobile') {
    try {
      const mnpInfo = await checkMNPDatabase(number);
      return { ...baseValidation, carrier: mnpInfo.carrier };
    } catch (error) {
      // Handle MNP lookup errors (e.g., database unavailable)
      console.error("MNP lookup failed:", error);
      return baseValidation; // Return basic validation even if MNP lookup fails
    }
  }
  return baseValidation;
}