using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace AutoUpdater
{
    public class Global
    {
        private static object _lock = new object();

        private static Global _instance = null;

        private Global(){}

        public static Global Instance
        {
            get
            {
                if (_instance == null)
                {
                    lock (_lock)
                    {
                        _instance = new Global();
                    }
                }

                return _instance;
            }
        }
        
        /// <summary>
        /// 网络是否可用
        /// </summary>
        public bool isConnected { get; set; }

        /// <summary>
        /// 是否有新版本
        /// </summary>
        public bool isUpdate { get; set; }

        /// <summary>
        /// 当前版本号
        /// </summary>
        public string CurrentVersion { get; set; }

        /// <summary>
        /// 最新版本号
        /// </summary>
        public string NewVersion { get; set; }

        /// <summary>
        /// 更新文件下载URL
        /// </summary>
        public DownloadURLCollection Urls { get; set; }

        /// <summary>
        /// 默认下载路径
        /// </summary>
        public string DownloadPath { get; set; }

        /// <summary>
        /// 默认下载全路径,包含文件名
        /// </summary>
        public string DownloadFileName { get; set; }

        /// <summary>
        /// 升级后启动的主程序名称
        /// </summary>
        public string StartApplication { get; set; }
    }
}