TheInfinityIQ_GCP/src/gcp-backend/GCP.Api/Areas/Identity/Pages/Account/Manage/Disable2fa.cshtml.cs
#nullable disable

using GCP.Api.Data.Entities;

using Microsoft.AspNetCore.Identity;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Mvc.RazorPages;

namespace GCP.Api.Areas.Identity.Pages.Account.Manage
{
	public class Disable2faModel : PageModel
	{
		private readonly UserManager<User> _userManager;
		private readonly ILogger<Disable2faModel> _logger;

		public Disable2faModel(
			UserManager<User> userManager,
			ILogger<Disable2faModel> logger)
		{
			_userManager = userManager;
			_logger = logger;
		}

		[TempData]
		public string StatusMessage { get; set; }

		public async Task<IActionResult> OnGet()
		{
			var user = await _userManager.GetUserAsync(User);
			if (user is null)
			{
				return NotFound($"Unable to load user with ID '{_userManager.GetUserId(User)}'.");
			}

			if (!await _userManager.GetTwoFactorEnabledAsync(user))
			{
				throw new InvalidOperationException($"Cannot disable 2FA for user as it's not currently enabled.");
			}

			return Page();
		}

		public async Task<IActionResult> OnPostAsync()
		{
			var user = await _userManager.GetUserAsync(User);
			if (user is null)
			{
				return NotFound($"Unable to load user with ID '{_userManager.GetUserId(User)}'.");
			}

			var disable2faResult = await _userManager.SetTwoFactorEnabledAsync(user, false);
			if (!disable2faResult.Succeeded)
			{
				throw new InvalidOperationException($"Unexpected error occurred disabling 2FA.");
			}

			_logger.LogInformation("User with ID '{UserId}' has disabled 2fa.", _userManager.GetUserId(User));
			StatusMessage = "2fa has been disabled. You can reenable 2fa when you setup an authenticator app";
			return RedirectToPage("./TwoFactorAuthentication");
		}
	}
}
