namespace Nuuru.Server.Services
{
    /// <summary>
    /// Runtime resolver that delegates ICaptchaService.ValidateAsync to the correct
    /// provider based on the current "captcha.provider" site setting.
    /// </summary>
    public class CaptchaServiceResolver : ICaptchaService
    {
        private readonly ISiteSettingsService _siteSettings;
        private readonly IServiceProvider _serviceProvider;

        public CaptchaServiceResolver(ISiteSettingsService siteSettings, IServiceProvider serviceProvider)
        {
            _siteSettings = siteSettings;
            _serviceProvider = serviceProvider;
        }

        public async Task<bool> ValidateAsync(string token)
        {
            var provider = await _siteSettings.GetCaptchaProviderAsync();

            ICaptchaService service = provider switch
            {
                "hcaptcha" => _serviceProvider.GetRequiredService<HCaptchaService>(),
                "builtin" => _serviceProvider.GetRequiredService<BuiltInCaptchaService>(),
                _ => _serviceProvider.GetRequiredService<NoOpCaptchaService>()
            };

            return await service.ValidateAsync(token);
        }
    }
}