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

namespace Api.Framework.Tools
{
    /// <summary>
    /// ini配置文件操作类
    /// </summary>
    public class IniHelper
    {
        [DllImport("kernel32")]
        private static extern long WritePrivateProfileString(string section, string key, string val, string filepath);
        [DllImport("kernel32")]
        private static extern int GetPrivateProfileString(string section, string key, string def, StringBuilder retval, int size, string filePath);


        //获取ini文件路径
        private string inifilepath;

        /// <summary>
        /// ini文件完整路径
        /// </summary>
        /// <param name="fileName"></param>
        public IniHelper(string fileName)
        {
            this.inifilepath = fileName;
        }

        /// <summary>
        /// 获取ini配置文件中指定key的数据
        /// </summary>
        /// <param name="node">头</param>
        /// <param name="key">头下面的key</param>
        /// <returns></returns>
        public string GetValue(string node, string key)
        {
            StringBuilder s = new StringBuilder(1024);
            GetPrivateProfileString(node, key, "", s, 1024, inifilepath);
            return s.ToString();
        }

        /// <summary>
        /// 设置ini配置文件的字段
        /// </summary>
        /// <param name="node">头</param>
        /// <param name="key">键</param>
        /// <param name="value">值</param>
        public void SetValue(string node, string key, string value)
        {
            try
            {
                WritePrivateProfileString(node, key, value, inifilepath);
            }
            catch (Exception ex)
            {
                throw ex;
            }
        }
    }
}