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


namespace laserPTZ
{
    class ConfigHelper
    {
        public static string GetAppConfig(string strKey)
        {
            string file = System.Windows.Forms.Application.ExecutablePath;
            Configuration config = ConfigurationManager.OpenExeConfiguration(file);
            foreach (string key in config.AppSettings.Settings.AllKeys)
            {
                if (key == strKey)
                {
                    return config.AppSettings.Settings[strKey].Value.ToString();
                }
            }
            return null;
        }

        public static void SetAppConfig(string key, string value)
        {
            string file = System.Windows.Forms.Application.ExecutablePath;
            Configuration config = ConfigurationManager.OpenExeConfiguration(file);
            bool exist = false;
            foreach (string item in config.AppSettings.Settings.AllKeys)
            {
                if (key == item)
                {
                    exist = true;
                }
            }

            if (exist)
            {
                config.AppSettings.Settings[key].Value = value;
            }

            config.Save(ConfigurationSaveMode.Modified);
            ConfigurationManager.RefreshSection("appSettings");
        }

        public static void UpdateAppConfig(string newKey, string newValue)
        {
            string file = System.Windows.Forms.Application.ExecutablePath;
            Configuration config = ConfigurationManager.OpenExeConfiguration(file);
            bool exist = false;
            foreach (string key in config.AppSettings.Settings.AllKeys)
            {
                if (key == newKey)
                {
                    exist = true;
                }
            }

            if (exist)
            {
                config.AppSettings.Settings.Remove(newKey);
            }
            config.AppSettings.Settings.Add(newKey, newValue);
            config.Save(ConfigurationSaveMode.Modified);
            ConfigurationManager.RefreshSection("appSettings");
        }
    }
}