mirror of
https://github.com/wwiinnddyy/LanMountainDesktop.git
synced 2026-06-20 23:54:26 +08:00
feat.在线安装器，更好的Issue与pull request模板。
This commit is contained in:
lincube
359
LanDesktopPLONDS.installer/ViewModels/MainWindowViewModel.cs
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359
LanDesktopPLONDS.installer/ViewModels/MainWindowViewModel.cs
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using System.Collections.ObjectModel;
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using System.Diagnostics;
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using CommunityToolkit.Mvvm.ComponentModel;
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using CommunityToolkit.Mvvm.Input;
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using LanDesktopPLONDS.Installer.Models;
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using LanDesktopPLONDS.Installer.Services;
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using LanMountainDesktop.Shared.Contracts.Privacy;
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namespace LanDesktopPLONDS.Installer.ViewModels;
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public sealed partial class MainWindowViewModel : ObservableObject
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{
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private readonly IOnlineInstallService _installService;
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private readonly IPrivacyDeviceIdentityProvider _privacyIdentity;
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private readonly InstallerPrivacyConsentStore _privacyConsentStore;
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private CancellationTokenSource? _installCts;
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private bool _isNavigatingInternally;
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[ObservableProperty]
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[NotifyCanExecuteChangedFor(nameof(NextCommand))]
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[NotifyCanExecuteChangedFor(nameof(BackCommand))]
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[NotifyCanExecuteChangedFor(nameof(StartInstallCommand))]
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private InstallerStepId _currentStep = InstallerStepId.Welcome;
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[ObservableProperty]
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private InstallerStepId _maxUnlockedStep = InstallerStepId.Welcome;
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[ObservableProperty]
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[NotifyCanExecuteChangedFor(nameof(NextCommand))]
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[NotifyCanExecuteChangedFor(nameof(StartInstallCommand))]
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private string _installPath = InstallerPathGuard.GetDefaultInstallPath();
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[ObservableProperty]
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[NotifyCanExecuteChangedFor(nameof(NextCommand))]
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[NotifyCanExecuteChangedFor(nameof(StartInstallCommand))]
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private bool _privacyConfirmed;
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[ObservableProperty]
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private string? _targetVersion;
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[ObservableProperty]
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private string? _sourceId;
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[ObservableProperty]
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private string? _errorMessage;
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[ObservableProperty]
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private string _statusText = "准备开始安装";
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[ObservableProperty]
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private double _downloadProgress;
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[ObservableProperty]
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private double _installProgress;
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[ObservableProperty]
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private string? _currentFile;
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[ObservableProperty]
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private string _downloadBytesText = string.Empty;
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[ObservableProperty]
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[NotifyCanExecuteChangedFor(nameof(StartInstallCommand))]
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private bool _isInstalling;
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[ObservableProperty]
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private bool _createDesktopShortcut;
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[ObservableProperty]
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private InstallerStepViewModel? _selectedStep;
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public MainWindowViewModel(
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IOnlineInstallService installService,
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IPrivacyDeviceIdentityProvider privacyIdentity,
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InstallerPrivacyConsentStore? privacyConsentStore = null)
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{
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_installService = installService;
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_privacyIdentity = privacyIdentity;
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_privacyConsentStore = privacyConsentStore ?? new InstallerPrivacyConsentStore();
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Steps =
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[
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new InstallerStepViewModel(InstallerStepId.Welcome, "开始安装", "Play"),
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new InstallerStepViewModel(InstallerStepId.InstallLocation, "安装位置", "Folder"),
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new InstallerStepViewModel(InstallerStepId.PrivacyConfirm, "数据确认", "Info"),
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new InstallerStepViewModel(InstallerStepId.Deploy, "开始部署", "Apps"),
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new InstallerStepViewModel(InstallerStepId.Complete, "完成安装", "Circle")
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];
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SyncSteps();
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SelectedStep = Steps[0];
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DeviceIdPreview = _privacyIdentity.GetOrCreateDeviceId();
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PrivacyConfirmed = _privacyConsentStore.HasConfirmed(DeviceIdPreview);
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}
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public ObservableCollection<InstallerStepViewModel> Steps { get; }
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public Func<string, Task<string?>>? BrowseRequested { get; set; }
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public string WindowTitle => "LanDesktopPLONDS Installer";
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public string DeviceIdPreview { get; }
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public bool IsWelcomeStep => CurrentStep == InstallerStepId.Welcome;
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public bool IsLocationStep => CurrentStep == InstallerStepId.InstallLocation;
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public bool IsPrivacyStep => CurrentStep == InstallerStepId.PrivacyConfirm;
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public bool IsDeployStep => CurrentStep == InstallerStepId.Deploy;
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public bool IsCompleteStep => CurrentStep == InstallerStepId.Complete;
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public bool CanGoBack => CurrentStep > InstallerStepId.Welcome && !IsInstalling;
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public bool CanGoNext => CurrentStep switch
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{
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InstallerStepId.Welcome => !IsInstalling,
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InstallerStepId.InstallLocation => !string.IsNullOrWhiteSpace(InstallPath) && !IsInstalling,
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InstallerStepId.PrivacyConfirm => PrivacyConfirmed && !IsInstalling,
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_ => false
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};
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public bool CanStartInstall => CurrentStep == InstallerStepId.Deploy &&
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PrivacyConfirmed &&
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!string.IsNullOrWhiteSpace(InstallPath) &&
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!IsInstalling;
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public InstallerWorkflowState Snapshot => new(
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CurrentStep,
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MaxUnlockedStep,
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InstallPath,
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PrivacyConfirmed,
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TargetVersion,
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ErrorMessage);
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partial void OnCurrentStepChanged(InstallerStepId value)
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{
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OnPropertyChanged(nameof(IsWelcomeStep));
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OnPropertyChanged(nameof(IsLocationStep));
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OnPropertyChanged(nameof(IsPrivacyStep));
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OnPropertyChanged(nameof(IsDeployStep));
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OnPropertyChanged(nameof(IsCompleteStep));
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OnPropertyChanged(nameof(CanGoBack));
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OnPropertyChanged(nameof(CanGoNext));
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OnPropertyChanged(nameof(CanStartInstall));
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SyncSteps();
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}
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partial void OnMaxUnlockedStepChanged(InstallerStepId value)
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{
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_ = value;
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SyncSteps();
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}
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partial void OnSelectedStepChanged(InstallerStepViewModel? value)
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{
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if (_isNavigatingInternally || value is null)
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{
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return;
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}
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if (value.StepId <= MaxUnlockedStep)
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{
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CurrentStep = value.StepId;
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return;
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}
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SyncSteps();
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}
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[RelayCommand(CanExecute = nameof(CanGoNext))]
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private async Task NextAsync()
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{
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ErrorMessage = null;
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if (CurrentStep == InstallerStepId.InstallLocation)
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{
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try
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{
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InstallerPathGuard.ValidateInstallPath(InstallPath);
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var info = await _installService.CheckLatestAsync(CancellationToken.None);
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TargetVersion = info.Version;
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SourceId = info.SourceId;
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StatusText = $"准备安装 {info.Version}";
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}
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catch (Exception ex)
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{
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ErrorMessage = ex.Message;
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return;
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}
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}
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else if (CurrentStep == InstallerStepId.PrivacyConfirm)
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{
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_privacyConsentStore.SaveConfirmed(DeviceIdPreview);
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}
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UnlockAndNavigate(CurrentStep + 1);
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}
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[RelayCommand(CanExecute = nameof(CanGoBack))]
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private void Back()
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{
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if (CurrentStep > InstallerStepId.Welcome)
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{
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CurrentStep -= 1;
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}
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}
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[RelayCommand]
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private async Task BrowseAsync()
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{
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if (BrowseRequested is null)
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{
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return;
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}
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var selected = await BrowseRequested(InstallPath);
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if (!string.IsNullOrWhiteSpace(selected))
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{
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InstallPath = selected;
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}
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}
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[RelayCommand(CanExecute = nameof(CanStartInstall))]
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private async Task StartInstallAsync()
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{
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ErrorMessage = null;
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IsInstalling = true;
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StartInstallCommand.NotifyCanExecuteChanged();
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_installCts?.Dispose();
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_installCts = new CancellationTokenSource();
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try
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{
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var progress = new Progress<InstallerDeployProgress>(ApplyProgress);
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var options = new OnlineInstallOptions(CreateDesktopShortcut);
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await _installService.InstallFreshAsync(InstallPath, options, progress, _installCts.Token);
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UnlockAndNavigate(InstallerStepId.Complete);
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StatusText = "安装完成";
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}
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catch (OperationCanceledException)
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{
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ErrorMessage = "安装已取消。";
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StatusText = "安装已取消";
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}
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catch (Exception ex)
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{
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ErrorMessage = ex.Message;
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StatusText = "安装失败";
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}
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finally
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{
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IsInstalling = false;
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StartInstallCommand.NotifyCanExecuteChanged();
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}
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}
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[RelayCommand]
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private void CancelInstall()
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{
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_installCts?.Cancel();
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}
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[RelayCommand]
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private void Launch()
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{
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LaunchCore();
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}
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private void LaunchCore()
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{
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var launcher = Path.Combine(InstallPath, OperatingSystem.IsWindows()
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? "LanMountainDesktop.Launcher.exe"
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: "LanMountainDesktop.Launcher");
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if (!File.Exists(launcher))
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{
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ErrorMessage = "未找到 LanMountainDesktop.Launcher。";
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return;
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}
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try
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{
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Process.Start(new ProcessStartInfo
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{
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FileName = launcher,
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Arguments = "--launch-source postinstall",
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WorkingDirectory = InstallPath,
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UseShellExecute = true
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});
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}
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catch (Exception ex)
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{
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ErrorMessage = ex.Message;
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}
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}
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private void UnlockAndNavigate(InstallerStepId step)
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{
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if (step > MaxUnlockedStep)
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{
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MaxUnlockedStep = step;
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}
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CurrentStep = step;
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}
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private void ApplyProgress(InstallerDeployProgress progress)
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{
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StatusText = progress.Stage;
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TargetVersion = progress.TargetVersion ?? TargetVersion;
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DownloadProgress = progress.DownloadProgress;
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InstallProgress = progress.InstallProgress;
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CurrentFile = progress.CurrentFile;
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DownloadBytesText = FormatBytes(progress.BytesDownloaded, progress.TotalBytes);
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}
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private void SyncSteps()
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{
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_isNavigatingInternally = true;
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try
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{
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foreach (var step in Steps)
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{
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step.IsUnlocked = step.StepId <= MaxUnlockedStep;
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step.IsSelected = step.StepId == CurrentStep;
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if (step.StepId == CurrentStep && !ReferenceEquals(SelectedStep, step))
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{
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SelectedStep = step;
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}
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}
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}
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finally
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{
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_isNavigatingInternally = false;
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}
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}
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private static string FormatBytes(long downloaded, long? total)
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{
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if (downloaded <= 0 && total is not > 0)
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{
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return string.Empty;
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}
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var downloadedText = ToSize(downloaded);
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return total is > 0 ? $"{downloadedText} / {ToSize(total.Value)}" : downloadedText;
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}
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private static string ToSize(long value)
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{
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string[] suffixes = ["B", "KB", "MB", "GB"];
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var size = (double)value;
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var suffix = 0;
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while (size >= 1024 && suffix < suffixes.Length - 1)
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{
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size /= 1024;
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suffix++;
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}
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return $"{size:0.##} {suffixes[suffix]}";
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}
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}
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