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

namespace LSFileClient
{
    public static class IniUtil
    {
        /// <summary>
        /// 写入INI文件
        /// </summary>
        /// <param name="section">节点名称[如[TypeName]]</param>
        /// <param name="key">键</param>
        /// <param name="val">值</param>
        /// <param name="filepath">文件路径</param>
        /// <returns></returns>
        [DllImport("kernel32")]
        private static extern long WritePrivateProfileString(string section, string key, string val, string filepath);
        /// <summary>
        /// 读取INI文件
        /// </summary>
        /// <param name="section">节点名称</param>
        /// <param name="key">键</param>
        /// <param name="def">值</param>
        /// <param name="retval">stringbulider对象</param>
        /// <param name="size">字节大小</param>
        /// <param name="filePath">文件路径</param>
        /// <returns></returns>
        [DllImport("kernel32")]
        private static extern int GetPrivateProfileString(string section, string key, string def, StringBuilder retval, int size, string filePath);

        /// <summary>
        /// <para>说明：通过Key获取Value值</para>
        /// <para>创建人：龚宇超</para>
        /// <para>创建日期：2017-07-22</para>
        /// <para>修改人：</para>
        /// <para>修改日期：</para>
        /// <para>修改备注：</para>
        /// <para>版本：1.0</para>
        /// </summary>
        /// <param name="key">键</param>
        /// <returns>值</returns>
        public static string ReadFileConfig(string key)
        {
            string value = string.Empty;
            try
            {
                //判读INI文件是否存在
                string filePath = Application.StartupPath + "/MenuConfig.ini";
                if (File.Exists(filePath))
                {
                    StringBuilder temp = new StringBuilder(1024);
                    string fileName = Path.GetFileNameWithoutExtension(filePath);
                    GetPrivateProfileString(fileName, key, "", temp, 1024, filePath);

                    return temp + "";
                }
            }
            catch (Exception)
            {
            }
            return value;
        }
        /// <summary>
        /// <para>说明：通过Key获取Value值</para>
        /// <para>创建人：龚宇超</para>
        /// <para>创建日期：2017-07-22</para>
        /// <para>修改人：</para>
        /// <para>修改日期：</para>
        /// <para>修改备注：</para>
        /// <para>版本：1.0</para>
        /// </summary>
        /// <param name="key">键</param>
        /// <returns>值</returns>
        public static string Read(string iniPath, string key)
        {
            string value = string.Empty;
            try
            {
                //判读INI文件是否存在
                string filePath = iniPath;
                if (File.Exists(filePath))
                {
                    StringBuilder temp = new StringBuilder(1024);
                    string fileName = Path.GetFileNameWithoutExtension(filePath);
                    GetPrivateProfileString(fileName, key, "", temp, 1024, filePath);

                    return temp + "";
                }
            }
            catch (Exception)
            {
            }
            return value;
        }
        /// <summary>
        /// <para>说明：写入Ini文件(以键值对的形式存放)</para>
        /// <para>创建人：龚宇超</para>
        /// <para>创建日期：2017-07-22</para>
        /// <para>修改人：</para>
        /// <para>修改日期：</para>
        /// <para>修改备注：</para>
        /// <para>版本：1.0</para>
        /// </summary>
        /// <param name="key">键</param>
        /// <param name="value">值</param>
        /// <returns></returns> 
        public static void WriteFileConfig(string key, string value)
        {
            try
            {
                //根据INI文件名设置要写入INI文件的节点名称
                //此处的节点名称完全可以根据实际需要进行配置
                string filePath = Application.StartupPath + "/MenuConfig.ini";
                if (!File.Exists(filePath))
                {
                    File.Create(filePath);
                }
                string fileName = Path.GetFileNameWithoutExtension(filePath);
                WritePrivateProfileString(fileName, key, value, filePath);
            }
            catch (Exception ex)
            {

            }
        }
    }
}