internal void PromptForAction()

in sources/Google.Solutions.IapDesktop.Application/ToolWindows/Update/CheckForUpdateCommand.cs [97:216]
84 lines of code
9 McCabe index (conditional complexity)

        internal void PromptForAction(IRelease? latestRelease)
        {
            if (latestRelease == null)
            {
                return;
            }
            else if (IsUpdateAdvised(latestRelease))
            {
                var nameOfUpdate = this.updatePolicy.GetReleaseTrack(latestRelease) switch
                {
                    ReleaseTrack.Canary => "An optional update",
                    ReleaseTrack.Critical => "A critical security update",
                    _ => "An update",
                };

                //
                // Prompt for upgrade.
                //
                var dialogParameters = new TaskDialogParameters(
                    "Update available",
                    $"{nameOfUpdate} is available for IAP Desktop.\n\n" +
                        $"Installed version: {this.install.CurrentVersion}\n" +
                        $"Available version: {latestRelease.TagVersion}",
                    "Would you like to download the update now?")
                {
                    Icon = TaskDialogIcon.ShieldGreenBackground,
                };
                dialogParameters.Buttons.Add(TaskDialogStandardButton.Cancel);

                //
                // Get download URL. 
                //
                // In case there are multple download URLs, prefer the
                // one that matches the current platform.
                //
                var downloadButton = new TaskDialogCommandLinkButton(
                    "Yes, download now",
                    DialogResult.OK);

                if (!latestRelease.TryGetDownloadUrl(
                        ProcessEnvironment.ProcessArchitecture,
                        out var downloadUrl) ||
                    downloadUrl == null)
                {
                    downloadUrl = latestRelease.DetailsUrl;
                }

                downloadButton.Click += (_, __) => this.browser.Navigate(downloadUrl);
                dialogParameters.Buttons.Add(downloadButton);

                //
                // Show release notes.
                //
                var showReleaseNotes = new TaskDialogCommandLinkButton(
                    "Show release notes",
                    DialogResult.OK);
                showReleaseNotes.Click += (_, __) => this.browser.Navigate(
                    latestRelease.DetailsUrl);
                dialogParameters.Buttons.Add(showReleaseNotes);

                //
                // No, later.
                //
                var laterButton = new TaskDialogCommandLinkButton(
                    "No, download later",
                    DialogResult.Cancel);
                dialogParameters.Buttons.Add(laterButton);

                this.taskDialog.ShowDialog(
                    this.parentWindow,
                    dialogParameters);
            }
            else if (
                latestRelease.Survey != null &&
                this.EnableSurveys &&
                (this.LastSurveyVersion == null || this.LastSurveyVersion < latestRelease.TagVersion))
            {
                var dialogParameters = new TaskDialogParameters(
                    "Tell us what you think",
                    latestRelease.Survey.Title,
                    latestRelease.Survey.Description);
                dialogParameters.Buttons.Add(TaskDialogStandardButton.Cancel);

                //
                // Open survey.
                //
                var openButton = new TaskDialogCommandLinkButton(
                    "Start survey",
                    DialogResult.OK);
                openButton.Click += (_, __) =>
                {
                    this.browser.Navigate(latestRelease.Survey.Url);
                    this.LastSurveyVersion = latestRelease.TagVersion;
                };
                dialogParameters.Buttons.Add(openButton);

                //
                // No, later.
                //
                var laterButton = new TaskDialogCommandLinkButton(
                    "Maybe later",
                    DialogResult.Cancel);
                dialogParameters.Buttons.Add(laterButton);

                //
                // Opt-out.
                //
                dialogParameters.VerificationCheckBox = new TaskDialogVerificationCheckBox(
                    "Don't show this message again")
                {
                    Checked = false
                };

                this.taskDialog.ShowDialog(
                    this.parentWindow,
                    dialogParameters);

                this.EnableSurveys = !dialogParameters.VerificationCheckBox.Checked;
            }
        }