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

using System.Runtime.InteropServices;
using System.IO;

using LFP_Manager.DataStructure;
using LFP_Manager.Utils;

namespace LFP_Manager.Function
{
    class csIniControlFunction
    {
        #region [Function] INI File Read Function(Section Setting)
        public static string[] GetIniValue(string Section, string path)
        {
            byte[] ba = new byte[5000];
            uint Flag = GetPrivateProfileSection(Section, ba, 5000, path);
            return Encoding.Default.GetString(ba).Split(new char[1] { '\0' }, StringSplitOptions.RemoveEmptyEntries);
        }
        #endregion

        #region [Function] INI File Read Function(Section and Key Setting)
        public static string GetIniValue(string Section, string key, string path)
        {
            StringBuilder sb = new StringBuilder(500);
            int Flag = GetPrivateProfileString(Section, key, "", sb, 500, path);
            return sb.ToString();
        }
        #endregion

        #region [Function] INI File Read Function(Section, Key, Value, Address Setting)
        public bool SetIniValue(string Section, string Key, string Value, string path)
        {
            return (WritePrivateProfileString(Section, Key, Value, path));
        }
        #endregion

        #region [DLL Function] INI DLL Load
        [DllImport("kernel32")]
        public static extern int GetPrivateProfileString(string lpAppName, string lpKeyName, string lpDefault, StringBuilder lpReturnedString, int nSize, string lpFileName);
        [DllImport("kernel32")]
        public static extern bool WritePrivateProfileString(string lpAppName, string lpKeyName, string lpString, string lpFileName);
        [DllImport("kernel32")]
        public static extern uint GetPrivateProfileInt(string lpAppName, string lpKeName, int nDefault, string lpFileName);
        [DllImport("kernel32")]
        public static extern uint GetPrivateProfileSection(string lpAppName, byte[] lpPairValues, uint nSize, string lpFileName);
        [DllImport("kernel32")]
        public static extern uint GetPrivateProfileSectionNames(byte[] lpSections, uint nSize, string lpFileName);
        #endregion

        public static DateTime Delay(int MS)
        {
            DateTime ThisMoment = DateTime.Now;
            TimeSpan duration = new TimeSpan(0, 0, 0, 0, MS);
            DateTime AfterWards = ThisMoment.Add(duration);

            while (AfterWards >= ThisMoment)
            {
                System.Windows.Forms.Application.DoEvents();
                ThisMoment = DateTime.Now;
            }

            return DateTime.Now;
        }

        public static void IniLoad(string AppPath, ref CommConfig rConfig)
        {
            string path;

            path = System.IO.Path.GetDirectoryName(AppPath);

            if (File.Exists(String.Format("{0}\\CommSet.ini", path)))
            {
                StringBuilder ret = new StringBuilder();
                string InIPath = String.Format("{0}\\CommSet.ini", path);

                // CommType = 0: SNMP, 1: RS-485
                rConfig.CommType = (int)csIniControlFunction.GetPrivateProfileInt("COMM TYPE", "TYPE", 0, InIPath);

                // Serial Port Config
                // PORT
                ret.Clear();
                csIniControlFunction.GetPrivateProfileString("UART", "PORT", "(NONE)", ret, 32, InIPath);
                rConfig.UartPort = ret.ToString();
                // MODEL
                rConfig.UartModelIndex = (int)csIniControlFunction.GetPrivateProfileInt("UART", "MODEL", 0, InIPath);

                // Module Qunatity = 1 - 16
                rConfig.ModuleQty = (int)csIniControlFunction.GetPrivateProfileInt("UART", "MODULE_QTY", 1, InIPath);

                // PROTOCOL
                rConfig.UartProtocol = (int)csIniControlFunction.GetPrivateProfileInt("UART", "PROTOCOL", 0, InIPath);

                // RECV_WAIT_TIME
                rConfig.RecvWaitTime = (int)csIniControlFunction.GetPrivateProfileInt("UART", "RECV_WAIT_TIME", 50, InIPath);

                // Etc. Config
                rConfig.DbLogPeriod = (int)csIniControlFunction.GetPrivateProfileInt("DATABASE", "LOG_PERIOD", 5, InIPath);

                // Etc. Config
                rConfig.RealTimeChartMaxCount = (int)csIniControlFunction.GetPrivateProfileInt("CHART", "MAX_COUNT", (2 * 60 * 60), InIPath);

                // Gyro. Config
                rConfig.GyroSensitive = (int)csIniControlFunction.GetPrivateProfileInt("GYRO", "SENSITIVITY", 50, InIPath);

                // ENABLE PASSWORD
                ret.Clear();
                csIniControlFunction.GetPrivateProfileString("PW", "ENABLE", "6003", ret, 256, InIPath);
                string rawEnablePw = ret.ToString();
                rConfig.EnablePassword = csCrypto.Decrypt(rawEnablePw);

                // DISABLE PASSWORD
                ret.Clear();
                csIniControlFunction.GetPrivateProfileString("PW", "DISABLE", "7003", ret, 256, InIPath);
                string rawDisablePw = ret.ToString();
                rConfig.DisablePassword = csCrypto.Decrypt(rawDisablePw);

                // 초기 기동 시 파일에 저장된 비밀번호가 평문이면 즉시 암호화하여 파일 갱신
                if (!csCrypto.IsEncrypted(rawEnablePw))
                {
                    WritePrivateProfileString("PW", "ENABLE", csCrypto.Encrypt(rConfig.EnablePassword), InIPath);
                }
                if (!csCrypto.IsEncrypted(rawDisablePw))
                {
                    WritePrivateProfileString("PW", "DISABLE", csCrypto.Encrypt(rConfig.DisablePassword), InIPath);
                }
            }
            else
            {
                rConfig.CommType = 0;

                rConfig.UartPort = "";
                rConfig.UartProtocol= 0;
                rConfig.RecvWaitTime = 50;

                rConfig.DbLogPeriod = 5;
                rConfig.RealTimeChartMaxCount = (2 * 60 * 60);

                rConfig.GyroSensitive = 50;

                rConfig.EnablePassword = "6003";
                rConfig.DisablePassword = "7003";
            }
        }

        public static void IniSave(string AppPath, CommConfig aConfig)
        {
            string path = Path.GetDirectoryName(AppPath);
            string InIPath = String.Format("{0}\\CommSet.ini", path);

            // write ini

            // CommType = 0: SNMP, 1: RS-485
            WritePrivateProfileString("COMM TYPE", "TYPE", aConfig.CommType.ToString(), InIPath);

            // Serial Port Config
            // PORT
            WritePrivateProfileString("UART", "PORT", aConfig.UartPort, InIPath);
            // MODEL
            WritePrivateProfileString("UART", "MODEL", aConfig.UartModelIndex.ToString(), InIPath);
            // MODULE QTY = 1 - 16
            WritePrivateProfileString("UART", "MODULE_QTY", aConfig.ModuleQty.ToString(), InIPath);
            // PROTOCOL
            WritePrivateProfileString("UART", "PROTOCOL", aConfig.UartProtocol.ToString(), InIPath);
            // RECV_WAIT_TIME
            WritePrivateProfileString("UART", "RECV_WAIT_TIME", aConfig.RecvWaitTime.ToString(), InIPath);

            // Etc Config
            WritePrivateProfileString("DATABASE", "LOG_PERIOD", aConfig.DbLogPeriod.ToString(), InIPath);

            // Etc Config
            WritePrivateProfileString("CHART", "MAX_COUNT", aConfig.RealTimeChartMaxCount.ToString(), InIPath);

            // Gyro Config
            WritePrivateProfileString("GYRO", "SENSITIVITY", aConfig.GyroSensitive.ToString(), InIPath);

            // ENABLE PASSWORD (암호화하여 저장)
            WritePrivateProfileString("PW", "ENABLE", csCrypto.Encrypt(aConfig.EnablePassword), InIPath);
            // DISABLE PASSWORD (암호화하여 저장)
            WritePrivateProfileString("PW", "DISABLE", csCrypto.Encrypt(aConfig.DisablePassword), InIPath);
        }
    }
}