using Microsoft.AspNetCore.Authentication;
using Microsoft.AspNetCore.Authentication.Cookies;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc;
using Shogi.Api.Extensions;
using Shogi.Api.Managers;
using Shogi.Api.Repositories;
using Shogi.Contracts.Api;

namespace Shogi.Api.Controllers;

[ApiController]
[Route("[controller]")]
[Authorize]
public class UserController : ControllerBase
{
    private readonly ISocketTokenCache tokenCache;
    private readonly ISocketConnectionManager connectionManager;
    private readonly IUserRepository userRepository;
    private readonly IShogiUserClaimsTransformer claimsTransformation;
    private readonly AuthenticationProperties authenticationProps;

    public UserController(
        ILogger<UserController> logger,
        ISocketTokenCache tokenCache,
        ISocketConnectionManager connectionManager,
        IUserRepository userRepository,
        IShogiUserClaimsTransformer claimsTransformation)
    {
        this.tokenCache = tokenCache;
        this.connectionManager = connectionManager;
        this.userRepository = userRepository;
        this.claimsTransformation = claimsTransformation;
        authenticationProps = new AuthenticationProperties
        {
            AllowRefresh = true,
            IsPersistent = true
        };
    }

    [HttpGet("Token")]
    public ActionResult<CreateTokenResponse> GetWebSocketToken()
    {
        var userId = User.GetShogiUserId();
        var displayName = User.GetShogiUserDisplayname();

        var token = tokenCache.GenerateToken(userId);
        return new CreateTokenResponse
        {
            DisplayName = displayName,
            OneTimeToken = token,
            UserId = userId
        };
    }

    /// <summary>
    /// </summary>
    /// <param name="returnUrl">Used by cookie authentication.</param>
    /// <returns></returns>
    [AllowAnonymous]
    [HttpGet("LoginAsGuest")]
    public async Task<IActionResult> GuestLogin([FromQuery] string? returnUrl)
    {
        var principal = await this.claimsTransformation.CreateClaimsFromGuestPrincipal(User);
        if (principal != null)
        {
            await HttpContext.SignInAsync(
                CookieAuthenticationDefaults.AuthenticationScheme,
                principal,
                authenticationProps
            );
        }
        if (!string.IsNullOrWhiteSpace(returnUrl))
        {
            return Redirect(returnUrl);
        }
        return Ok();
    }

    [HttpPut("GuestLogout")]
    public async Task<IActionResult> GuestLogout()
    {
        var signOutTask = HttpContext.SignOutAsync(CookieAuthenticationDefaults.AuthenticationScheme);

        var userId = User?.GetShogiUserId();
        if (!string.IsNullOrEmpty(userId))
        {
            connectionManager.Unsubscribe(userId);
        }

        await signOutTask;
        return Ok();
    }
}