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

namespace bnhtrade.Core
{
    public class Config
    {
        public string GetAppDataPath()
        {
            string path = null;
            if (OperatingSystem.IsWindows())
            {
                path = Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData) 
                       + @"\bnhtrade\";
            }
            else if (OperatingSystem.IsLinux() || OperatingSystem.IsMacOS())
            {
                path = Environment.GetFolderPath(Environment.SpecialFolder.UserProfile) 
                       + "/.bnhtrade/";
            }
            else
            {
                throw new PlatformNotSupportedException("Unsupported operating system");
            }
            return path;
        }

        /// <summary>
        /// return the directory path for temp files, just add file name onto end
        /// </summary>
        /// <returns></returns>
        public static string GetTempFileDirectoryPath()
        {
            string directoryPath = Path.GetTempPath()
                + "_" + System.Reflection.Assembly.GetExecutingAssembly().GetName().Name;
            System.IO.Directory.CreateDirectory(directoryPath);
            return directoryPath;
        }

        /// <summary>
        /// Returns configuration file from local users directory
        /// </summary>
        /// <returns></returns>
        internal Configuration GetConfiguration()
        {
            string path = new bnhtrade.Core.Config().GetAppDataPath();
            string configFileName = "app.local.config";

            ExeConfigurationFileMap configMap = new ExeConfigurationFileMap();
            configMap.ExeConfigFilename = path + configFileName;
            Configuration config = ConfigurationManager.OpenMappedExeConfiguration(configMap, ConfigurationUserLevel.None);

            return config;
        }
    }
}