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

namespace JY.Utility
{
    public class IniFileHelper
    {
		private static string iniFilePath = "ComConfig.ini";

		[DllImport("kernel32")]
		private static extern long WritePrivateProfileString(string section, string key, string val, string filePath);

		[DllImport("kernel32")]
		private static extern long GetPrivateProfileString(string section, string key, string def, StringBuilder retVal, int size, string filePath);

		public static string ReadIniData(string Section, string Key)
		{
			try
			{
				if (File.Exists(iniFilePath))
				{
					StringBuilder temp = new StringBuilder(1024);
					GetPrivateProfileString(Section, Key, "", temp, 1024, iniFilePath);
					return temp.ToString();
				}
				MessageBox.Show("节点：" + Section + "，键名：" + Key + "：读取配置文件错误！");
				return null;
			}
			catch
			{
				throw;
			}
		}

		public static bool WriteIniData(string Section, string Key, string Value)
		{
			try
			{
				if (File.Exists(iniFilePath))
				{
					if (WritePrivateProfileString(Section, Key, Value, iniFilePath) == 0L)
					{
						return false;
					}
					return true;
				}
				File.Create(iniFilePath).Close();
				if (WritePrivateProfileString(Section, Key, Value, iniFilePath) == 0L)
				{
					return false;
				}
				return true;
			}
			catch
			{
				throw;
			}
		}

		public static void CreateIniFile(string StartupPath, string AppName)
		{
			iniFilePath = StartupPath + AppName;
			if (!Directory.Exists(StartupPath))
			{
				Directory.CreateDirectory(StartupPath);
			}
			if (!File.Exists(iniFilePath))
			{
				File.Create(iniFilePath).Close();
			}
		}
	}
}