/*******************************************************************************
 * Copyright(c) 2014 dongke All rights reserved. / Confidential
 * 类的信息：
 *      1.程序名称：INIUtility.cs
 *      2.功能描述：INI配置文件操作类
 * 编辑履历：
 *      作者            日期                版本            修改内容
 *      陈冰            2014/11/17          1.00            新建
 *******************************************************************************/

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text;

namespace Dongke.IBOSS.PRD.Basics.Library
{
    /// <summary>
    /// INI配置文件操作类
    /// </summary>
    public class INIUtility
    {
        // 放置单例
        private static Dictionary<IniFile, INIUtility> _dic = new Dictionary<IniFile, INIUtility>();
        // ini文件路径
        private string _iniFilePath;
        /// <summary>
        /// 文件
        /// </summary>
        public enum IniFile
        {
            /// <summary>
            /// Config文件
            /// </summary>
            Config,
        }

        /// <summary>
        /// 构造
        /// </summary>
        private INIUtility()
        {

        }

        /// <summary>
        /// 单例
        /// </summary>
        /// <param name="iniFile">配置文件</param>
        /// <returns></returns>
        public static INIUtility Instance(IniFile iniFile)
        {
            if (_dic.Keys.Contains(iniFile))
            {
                return _dic[iniFile];
            }
            else
            {
                INIUtility ini = new INIUtility();
				ini._iniFilePath = System.AppDomain.CurrentDomain.BaseDirectory + iniFile.ToString() + ".ini";
                _dic.Add(iniFile, ini);
                return ini;
            }
        }

        #region API函数声明

        /// <summary>
        /// 返回0表示失败，非0为成功
        /// </summary>
        /// <param name="section"></param>
        /// <param name="key"></param>
        /// <param name="val"></param>
        /// <param name="filePath"></param>
        /// <returns></returns>
        [DllImport("kernel32")]
        private static extern long WritePrivateProfileString(string section, string key,
            string val, string filePath);

        [DllImport("kernel32")]//返回取得字符串缓冲区的长度
        private static extern int GetPrivateProfileString(string section, string key, string def, System.Text.StringBuilder retVal, int size, string filePath);
        #endregion

        #region 读Ini文件
        /// <summary>
        /// 读Ini文件
        /// </summary>
        /// <param name="section">section</param>
        /// <param name="key">key</param>
        /// <returns></returns>
        public string ReadIniData(string section, string key)
        {
            if (File.Exists(_iniFilePath))
            {
                // 每次从ini中读取多少字节
                StringBuilder temp = new StringBuilder(2048);
                // section=配置节，key=键名，temp=上面，path=路径
                GetPrivateProfileString(section, key, "", temp, 2048, _iniFilePath);
                return temp.ToString().Trim();
            }
            else
            {
                return string.Empty;
            }
        }

		public static string ReadIniData(string iniFile, string section, string key)
		{
			if (File.Exists(iniFile))
			{
				// 每次从ini中读取多少字节
				StringBuilder temp = new StringBuilder(2048);
				// section=配置节，key=键名，temp=上面，path=路径
				GetPrivateProfileString(section, key, "", temp, 2048, iniFile);
				return temp.ToString().Trim();
			}
			else
			{
				return string.Empty;
			}
		}
        #endregion

        #region 写Ini文件
        /// <summary>
        /// 写Ini文件
        /// </summary>
        /// <param name="Section"></param>
        /// <param name="Key"></param>
        /// <param name="Value"></param>
        /// <returns></returns>
        public bool WriteIniData(string Section, string Key, string Value)
        {
            //if (File.Exists(_iniFilePath))
            {
                long OpStation = WritePrivateProfileString(Section, Key, Value, _iniFilePath);
                if (OpStation == 0)
                {
                    return false;
                }
                else
                {
                    return true;
                }
            }
            //else
            //{
            //    return false;
            //}
        }

        #endregion
    }
}