using System;
using System.Collections;
using System.ComponentModel;
using System.Configuration;
using System.Configuration.Install;
using System.IO;
using System.Reflection;
using System.Xml;
using static System.Collections.Specialized.BitVector32;

[RunInstaller(true)]
public class ConfigInstaller : Installer
{
    public override void Install(IDictionary stateSaver)
    {
        base.Install(stateSaver);

        string appPath = Context.Parameters["targetdir"];
        string apiBaseUrl = Context.Parameters["apibaseurl"];

        string configPath = Path.Combine(appPath, "報到系統客戶端.exe.config");

        var xml = new XmlDocument();
        xml.Load(configPath);

        var nsmgr = new XmlNamespaceManager(xml.NameTable);
        // applicationSettings 沒 namespace，不用加

        var node = xml.SelectSingleNode(
            "/configuration/applicationSettings/報到系統客戶端.Properties.Settings" +
            "/setting[@name='ApiBaseUrl']/value"
        );

        if (node == null)
            throw new Exception("找不到 ApiBaseUrl");

        node.InnerText = apiBaseUrl;

        xml.Save(configPath);

        //var config = ConfigurationManager.OpenExeConfiguration(exeConfig);

        //// 取得 applicationSettings
        //var appSettings = config.GetSection("applicationSettings/報到系統客戶端.Properties.Settings") as ClientSettingsSection;
        //if (appSettings == null)
        //    throw new Exception("找不到 applicationSettings/報到系統客戶端.Properties.Settings 區段");

        //// 尋找設定值
        //SettingElement target = null;
        //foreach (SettingElement s in appSettings.Settings)
        //{
        //    if (s.Name == "ApiBaseUrl")
        //    {
        //        target = s;
        //        break;
        //    }
        //}
        //if (target == null)
        //    throw new Exception("找不到 ApiBaseUrl");

        //// 寫入設定值
        //target.Value.ValueXml.InnerText = apiBaseUrl;

        //// 存檔
        //config.Save(ConfigurationSaveMode.Modified);
    }
}