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

namespace SSC
{
    /// <summary>
    /// 系统服务结果服务
    /// </summary>
    public class Z004 : NSC.IService
    {
        /// <summary>
        /// 提交新版本文件
        /// </summary>
        /// <param name="userAuth"></param>
        /// <param name="input"></param>
        /// <returns></returns>
        public NSC.NetServiceStruct ServiceFunction(Common.Data.UserAuthority userAuth, NSC.NetServiceStruct input)
        {
            //验证权限
            if (userAuth == Common.Data.UserAuthority.User)
            {
                throw new Common.Exceptions.NotEnoughPermissionException();
            }

            double version = input.Params["Version"].GetDouble();
            double oldver = 0;

            //获取现有版本号
            StringBuilder query = new StringBuilder();
            query.Append("SELECT VERSIONNO FROM T_UPDATE WHERE DEVICENAME='{DEVICENAME}' ORDER BY CREATETIME DESC LIMIT 1");
            query.Replace("{DEVICENAME}", input.FirmwareModel);
            Common.Data.SqlLite.SqlLiteHelper sqlite = new Common.Data.SqlLite.SqlLiteHelper();
            using (var conn = sqlite.OpenConnection(Common.Config.ConfigSetting.GetConnectionString()))
            using (var table = sqlite.QueryReturnDataTable(conn, query.ToString()))
            {
                if (table.Rows.Count > 0)
                {
                    oldver = double.Parse(table.Rows[0]["VERSIONNO"].ToString());
                }
            }

            //验证版本号
            if (version <= oldver)
            {
                throw new Exception("新版本号不能比旧版本号低！");
            }

            //创建版本目录
            System.IO.Directory.CreateDirectory(Common.Config.ConfigSetting.GetSetting("0001") + input.FirmwareModel + @"\" + input.Params["Version"].GetString());

            //写入文件
            using (System.IO.FileStream fs = new System.IO.FileStream(Common.Config.ConfigSetting.GetSetting("0001")
                + input.FirmwareModel + @"\" + input.Params["Version"].GetString() + @"\update.bin"
                , System.IO.FileMode.Create, System.IO.FileAccess.ReadWrite, System.IO.FileShare.None))
            {
                byte[] bytes = input.Params["Files"].GetBinary();
                fs.Write(bytes, 0, bytes.Length);
                fs.Flush();
            }

            string updateTime = input.Params.ContainsKey("UpdateTime") ? input.Params["UpdateTime"].GetString() : DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss");

            query = new StringBuilder();
            query.Append("INSERT INTO T_UPDATE(DEVICENAME,VERSIONNO,UPDATETIME,CREATETIME,CREATEUSER) VALUES('{DEVICENAME}','{VERSIONNO}','{UPDATETIME}','{CREATETIME}','{CREATEUSER}')");
            query.Replace("{DEVICENAME}", input.FirmwareModel);
            query.Replace("{VERSIONNO}", input.Params["Version"].GetString());
            query.Replace("{UPDATETIME}", updateTime);
            query.Replace("{CREATETIME}", updateTime);
            query.Replace("{CREATEUSER}", input.Params.ContainsKey("User") ? input.Params["User"].GetString() : "");
            using (var conn = sqlite.OpenConnection(Common.Config.ConfigSetting.GetConnectionString()))
            {
                sqlite.ExecuteSql(conn, query.ToString());
            }

            input.ExceptionType = Common.Data.ExceptionType.NoneException;
            input.Returns.Add("LatestVersion", new NSC.ParameterStruct(input.Params["Version"].GetString()));
            return input;
        }
    
    }
}