148 lines
4.3 KiB
C#
148 lines
4.3 KiB
C#
using CommunityToolkit.Mvvm.ComponentModel;
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using CommunityToolkit.Mvvm.Input;
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using Microsoft.UI.Xaml.Controls;
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Reflection.Metadata.Ecma335;
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using System.Text;
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using System.Text.RegularExpressions;
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using System.Threading.Tasks;
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using VDownload.GUI.Services.Dialog;
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using VDownload.GUI.Services.WebView;
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using VDownload.Sources.Twitch;
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using VDownload.Sources.Twitch.Authentication;
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namespace VDownload.GUI.ViewModels
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{
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public partial class AuthenticationViewModel : ObservableObject
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{
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#region ENUMS
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public enum AuthenticationButton
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{
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SignIn,
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SignOut,
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Loading
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}
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#endregion
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#region SERVICES
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private IDialogService _dialogService;
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private IWebViewService _webViewService;
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private ITwitchAuthenticationService _twitchAuthenticationService;
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#endregion
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#region PROPERTIES
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[ObservableProperty]
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private string _twitchDescription;
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[ObservableProperty]
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private AuthenticationButton _twitchButtonState;
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#endregion
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#region CONSTRUCTORS
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public AuthenticationViewModel(IDialogService dialogService, IWebViewService webViewService, ITwitchAuthenticationService twitchAuthenticationService)
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{
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_dialogService = dialogService;
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_webViewService = webViewService;
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_twitchAuthenticationService = twitchAuthenticationService;
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TwitchButtonState = AuthenticationButton.Loading;
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}
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#endregion
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#region PUBLIC METHODS
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[RelayCommand]
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public async Task TwitchAuthentication()
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{
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AuthenticationButton state = TwitchButtonState;
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TwitchButtonState = AuthenticationButton.Loading;
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if (state == AuthenticationButton.SignOut)
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{
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await _twitchAuthenticationService.DeleteToken();
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}
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else
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{
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string url = await _webViewService.Show(new Uri(_twitchAuthenticationService.AuthenticationPageUrl), _twitchAuthenticationService.AuthenticationPageClosePredicate, "Twitch authentication");
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Match match = _twitchAuthenticationService.AuthenticationPageRedirectUrlRegex.Match(url);
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if (match.Success)
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{
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string token = match.Groups[1].Value;
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await _twitchAuthenticationService.SetToken(Encoding.UTF8.GetBytes(token));
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}
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else
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{
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await _dialogService.ShowOk("Twitch authentication error", "An error occured");
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}
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}
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await TwitchAuthenticationRefresh();
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}
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[RelayCommand]
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public async Task Navigation()
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{
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List<Task> refreshTasks = new List<Task>
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{
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TwitchAuthenticationRefresh()
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};
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await Task.WhenAll(refreshTasks);
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}
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#endregion
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#region PRIVATE METHODS
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private async Task TwitchAuthenticationRefresh()
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{
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TwitchButtonState = AuthenticationButton.Loading;
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byte[]? token = await _twitchAuthenticationService.GetToken();
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if (token is null)
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{
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TwitchDescription = "You are not authenticated. Please sign in";
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TwitchButtonState = AuthenticationButton.SignIn;
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}
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else
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{
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TwitchValidationResult validationResult = await _twitchAuthenticationService.ValidateToken(token);
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if (validationResult.Success)
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{
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TwitchDescription = $"Signed in as {validationResult.TokenData.Login}. Expiration date: {validationResult.TokenData.ExpirationDate:dd.MM.yyyy HH:mm}";
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TwitchButtonState = AuthenticationButton.SignOut;
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}
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else
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{
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await _twitchAuthenticationService.DeleteToken();
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TwitchDescription = "Token expired or is invalid. Please log in again";
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TwitchButtonState = AuthenticationButton.SignIn;
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}
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}
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}
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#endregion
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}
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}
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