public async Task InstallApplicationAsync()

in WindowsDevicePortalWrapper/WindowsDevicePortalWrapper.Shared/Core/AppDeployment.cs [75:176]
87 lines of code
8 McCabe index (conditional complexity)

        public async Task InstallApplicationAsync(
            string appName,
            string packageFileName, 
            List<string> dependencyFileNames,
            string certificateFileName = null,
            short stateCheckIntervalMs = 500,
            short timeoutInMinutes = 15,
            bool uninstallPreviousVersion = true)
        {
            string installPhaseDescription = string.Empty;

            try
            {
                FileInfo packageFile = new FileInfo(packageFileName);

                // If appName was not provided, use the package file name
                if (string.IsNullOrEmpty(appName))
                {
                    appName = packageFile.Name;
                }

                // Uninstall the application's previous version, if one exists.
                if (uninstallPreviousVersion)
                {
                    installPhaseDescription = string.Format("Uninstalling any previous version of {0}", appName);
                    this.SendAppInstallStatus(
                        ApplicationInstallStatus.InProgress,
                        ApplicationInstallPhase.UninstallingPreviousVersion,
                        installPhaseDescription);
                    AppPackages installedApps = await this.GetInstalledAppPackagesAsync();
                    foreach (PackageInfo package in installedApps.Packages)
                    {
                        if (package.Name == appName)
                        {
                            await this.UninstallApplicationAsync(package.FullName);
                            break;
                        }
                    }
                }
                
                // Create the API endpoint and generate a unique boundary string.
                Uri uri;
                string boundaryString;
                this.CreateAppInstallEndpointAndBoundaryString(
                    packageFile.Name,
                    out uri,
                    out boundaryString);

                installPhaseDescription = string.Format("Copying: {0}", packageFile.Name);
                this.SendAppInstallStatus(
                    ApplicationInstallStatus.InProgress,
                    ApplicationInstallPhase.CopyingFile,
                    installPhaseDescription);

                var content = new HttpMultipartFileContent();
                content.Add(packageFile.FullName);
                content.AddRange(dependencyFileNames);
                content.Add(certificateFileName);
                await this.PostAsync(uri, content);

                // Poll the status until complete.
                ApplicationInstallStatus status = ApplicationInstallStatus.InProgress;
                do
                {
                    installPhaseDescription = string.Format("Installing {0}", appName);
                    this.SendAppInstallStatus(
                        ApplicationInstallStatus.InProgress,
                        ApplicationInstallPhase.Installing,
                        installPhaseDescription);

                    await Task.Delay(TimeSpan.FromMilliseconds(stateCheckIntervalMs));

                    status = await this.GetInstallStatusAsync().ConfigureAwait(false);
                }
                while (status == ApplicationInstallStatus.InProgress);

                installPhaseDescription = string.Format("{0} installed successfully", appName);
                this.SendAppInstallStatus(
                    ApplicationInstallStatus.Completed,
                    ApplicationInstallPhase.Idle,
                    installPhaseDescription);
            }
            catch (Exception e)
            {
                DevicePortalException dpe = e as DevicePortalException;

                if (dpe != null)
                {
                    this.SendAppInstallStatus(
                        ApplicationInstallStatus.Failed,
                        ApplicationInstallPhase.Idle,
                        string.Format("Failed to install {0}: {1}", appName, dpe.Reason));
                }
                else
                {
                    this.SendAppInstallStatus(
                        ApplicationInstallStatus.Failed,
                        ApplicationInstallPhase.Idle,
                        string.Format("Failed to install {0}: {1}", appName, installPhaseDescription));
                }
            }
        }