using System.Globalization;
using OpenIddict.Abstractions;
using OpenIddict.Validation.AspNetCore;

namespace Dpz.Core.Auth.Controllers;

public class HomeController : Controller
{
    public async Task<IActionResult> Index(
        [FromServices] IHttpCurrentUserService httpCurrentUser,
        CancellationToken cancellationToken = default
    )
    {
        VmUserInfo? userInfo = null;
        if (User.Identity?.IsAuthenticated == true)
        {
            userInfo = await httpCurrentUser.GetUserInfoAsync(cancellationToken);
        }
        return this.ShellView(
            new AuthShellViewModel<EmptyAuthShellPayload>
            {
                EntryName = "public",
                PageName = "home",
                User = userInfo,
            }
        );
    }

    /// <summary>
    /// 用户信息
    /// </summary>
    /// <returns></returns>
    [Authorize(AuthenticationSchemes = OpenIddictValidationAspNetCoreDefaults.AuthenticationScheme)]
    [HttpGet("~/connect/userinfo")]
    public IActionResult GetUserInfo()
    {
        var scopes = User.FindAll("oi_scp").Select(c => c.Value);
        var claims = User
            .Claims.Where(c => !c.Type.StartsWith("oi_"))
            .ToDictionary(c => c.Type, c => c.Value);
        claims["scope"] = string.Join(" ", scopes);

        var result = claims.ToDictionary(x => x.Key, object (x) => x.Value);

        var emailVerifiedValue = User.FindFirst(OpenIddictConstants.Claims.EmailVerified)?.Value;

        if (bool.TryParse(emailVerifiedValue, out var emailVerified))
        {
            result[OpenIddictConstants.Claims.EmailVerified] = emailVerified;
        }
        var updatedAtValue = User.FindFirst(OpenIddictConstants.Claims.UpdatedAt)?.Value;

        if (
            long.TryParse(
                updatedAtValue,
                NumberStyles.Integer,
                CultureInfo.InvariantCulture,
                out var updatedAt
            )
        )
        {
            result[OpenIddictConstants.Claims.UpdatedAt] = updatedAt;
        }

        return Ok(result);
    }

    [Route("robots.txt")]
    public IActionResult Robots()
    {
        return Content("User-agent: *\nDisallow: /", "text/plain");
    }

#if DEBUG
    public IActionResult Forbidden()
    {
        Response.StatusCode = StatusCodes.Status403Forbidden;
        return new EmptyResult();
    }

    public IActionResult Error()
    {
        Response.StatusCode = StatusCodes.Status500InternalServerError;
        return new EmptyResult();
    }

#endif
}