using Extensions;
using Microsoft.AspNetCore.Authorization;
using WeatherForecast.Services;

namespace WeatherForecast.Policies {
  /// <summary>
  /// 
  /// </summary>
  public class WhitelistTokenRequirement : IAuthorizationRequirement {
    // public string WhiteListToken { get; }

    /// <summary>
    /// 
    /// </summary>
    public WhitelistTokenRequirement() {
      // WhiteListToken = whiteListToken;
    }
  }

  /// <summary>
  /// 
  /// </summary>
  public class WhitelistTokenHandler : AuthorizationHandler<WhitelistTokenRequirement> {
    private readonly IHttpContextAccessor _httpContextAccessor;
    private readonly IAuthenticationService _athenticationService;

    /// <summary>
    /// 
    /// </summary>
    /// <param name="httpContextAccessor"></param>
    /// <param name="athenticationService"></param>
    public WhitelistTokenHandler(
        IHttpContextAccessor httpContextAccessor,
        IAuthenticationService athenticationService
    ) {
      _httpContextAccessor = httpContextAccessor;
      _athenticationService = athenticationService;
    }

    /// <summary>
    /// 
    /// </summary>
    /// <param name="context"></param>
    /// <param name="requirement"></param>
    /// <returns></returns>
    protected override Task HandleRequirementAsync(AuthorizationHandlerContext context, WhitelistTokenRequirement requirement) {
      var request = _httpContextAccessor?.HttpContext?.Request;

      if (request != null && _athenticationService.Get(request.GeBearerToken()).IsSuccess)
        context.Succeed(requirement);

      return Task.CompletedTask;
    }
  }
}