using System.Globalization;

using System.Text.RegularExpressions;

using System.Windows.Controls;

using NETworkManager.Localization.Resources;

using NETworkManager.Utilities;

namespace NETworkManager.Validators;

public class ServerValidator : ValidationRule

{

public ServerDependencyObjectWrapper Wrapper { get; set; }

public override ValidationResult Validate(object value, CultureInfo cultureInfo)

{

var allowOnlyIPAddress = Wrapper.AllowOnlyIPAddress;

var genericErrorResult =

allowOnlyIPAddress ? Strings.EnterValidIPAddress : Strings.EnterValidHostnameOrIPAddress;

var input = (value as string)?.Trim();

if (string.IsNullOrEmpty(input))

return new ValidationResult(false, genericErrorResult);

// Check if it is a valid IPv4 address like 192.168.0.1

if (Regex.IsMatch(input, RegexHelper.IPv4AddressRegex))

return ValidationResult.ValidResult;

// Check if it is a valid IPv6 address like ::1

if (Regex.IsMatch(input, RegexHelper.IPv6AddressRegex))

return ValidationResult.ValidResult;

// Check if it is a valid hostname like server-01 or server-01.example.com

if (Regex.IsMatch(input, RegexHelper.HostnameOrDomainRegex) && !allowOnlyIPAddress)

return ValidationResult.ValidResult;

return new ValidationResult(false, genericErrorResult);

}

}