Flow.Launcher/Flow.Launcher.Infrastructure/UserSettings/DataLocation.cs

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Flow.Launcher.Infrastructure.UserSettings
{
    public static class DataLocation
    {
        public const string PortableFolderName = "UserData";
        public const string DeletionIndicatorFile = ".dead";
        public static string PortableDataPath = Path.Combine(Constant.ProgramDirectory, PortableFolderName);
        public static string RoamingDataPath = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData), "FlowLauncher");
        public static string DataDirectory()
        {
            if (PortableDataLocationInUse())
                return PortableDataPath;

            return RoamingDataPath;
        }

        public static bool PortableDataLocationInUse()
        {
            if (Directory.Exists(PortableDataPath) && !File.Exists(DeletionIndicatorFile))
                return true;

            return false;
        }

        public static readonly string PluginsDirectory = Path.Combine(DataDirectory(), Constant.Plugins);
    }
}