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

namespace BeWo.Service.ServiceUtils.Paths
{
    public static class ServerFilePaths
    {
        //  UpdateFiles
        //      L files
        //          L versions
        //              L 1.0.0.0
        //                  L _default
        //                      L exampleData#2
        //                  L tenant#1
        //                      L exampleData#3
        //              L 1.0.0.1
        //                  L _default
        //                      L exampleData#4
        //                  L tenant#1
        //                      L exampleData#5
        //          L special_tenant_files
        //              L tenant#1
        //                  L exampleData#1
        //      L log
        //      L config
        //          L update_plan.config

        private static string _RootPath;
        public static string RootPath => _RootPath ?? (_RootPath = ConfigurationManager.AppSettings.Get("RootPath"));

        private static string _ConfigPath;
        public static string ConfigPath => _ConfigPath ?? (_ConfigPath = Path.Combine(RootPath, "config"));

        private static string _UpdateConfigPath;
        public static string UpdateConfigPath => _UpdateConfigPath ?? (_UpdateConfigPath = Path.Combine(ConfigPath, "update_plan.config"));

        private static string _LogPath;
        public static string LogPath => _LogPath ?? (_LogPath = Path.Combine(RootPath, "log"));

        private static string _FilesPath;
        public static string FilesPath => _FilesPath ?? (_FilesPath = Path.Combine(RootPath, "files"));

        private static string _SpecialTenantFilesPath;
        public static string SpecialTenantFilesPath => _SpecialTenantFilesPath ?? (_SpecialTenantFilesPath = Path.Combine(FilesPath, "special_tenant_files"));

        private static string _VersionsFilePath;
        public static string VersionsFilePath => _VersionsFilePath ?? (_VersionsFilePath = Path.Combine(FilesPath, "versions"));

        static ServerFilePaths()
        {

        }

        private static string GetVersionFolderPath(string version) => Path.Combine(VersionsFilePath, version);

        public static string GetSpecialTenantFolderPath(string tenant) => Path.Combine(SpecialTenantFilesPath, tenant);

        public static string GetVersionTenantFolderPath(string version, string tenant) => Path.Combine(GetVersionFolderPath(version), tenant);
        public static string GetVersionDefaultFolderPath(string version) => GetVersionTenantFolderPath(version, "default");

        public static string GetLogFolderPath(string tenant) => Path.Combine(LogPath, tenant);
    }
}