using System.Security.Cryptography;
using System.Text;
using Tiku.Domain.Tenancy;

namespace Tiku.Infrastructure.Auth;

public static class SmsCodeHashing
{
    public static string Hash(Guid tenantId, string phone, SmsPurpose purpose, string code)
    {
        var normalized = $"{tenantId:N}:{NormalizePhone(phone)}:{purpose}:{code.Trim()}";
        var hash = SHA256.HashData(Encoding.UTF8.GetBytes(normalized));
        return Convert.ToHexString(hash).ToLowerInvariant();
    }

    public static string NormalizePhone(string phone)
    {
        return phone.Trim();
    }
}