using Mirea.Api.Security.Common.Domain;
using Mirea.Api.Security.Common.Dto.Requests;
using Mirea.Api.Security.Common.Dto.Responses;
using Mirea.Api.Security.Common.Interfaces;
using System;

namespace Mirea.Api.Security.Services;

public class AuthService(ICacheService cache, IAccessToken accessTokenService)
{
    public TimeSpan Lifetime { private get; init; }

    private static string GenerateRefreshToken() => Guid.NewGuid().ToString().Replace("-", "") +
                                                    GeneratorKey.GenerateString(32);
    private (string Token, DateTime ExpireIn) GenerateAccessToken(string userId) =>
        accessTokenService.GenerateToken(userId);

    private static string GetAuthCacheKey(string fingerprint) => $"{fingerprint}_auth_token";

    private Task SetAuthTokenDataToCache(string fingerprint, AuthToken data, CancellationToken cancellation) =>
        cache.SetAsync(
            GetAuthCacheKey(fingerprint),
            JsonSerializer.SerializeToUtf8Bytes(data),
            slidingExpiration: Lifetime,
            cancellationToken: cancellation);
}