using System;
using System.Collections;
using System.ComponentModel;
using System.Configuration.Install;

namespace UltiDev.Cassini
{
    [RunInstaller(true)]
    public class Installer : System.Configuration.Install.Installer
    {
        /// <summary>
        /// Required designer variable.
        /// </summary>
        private System.ComponentModel.Container components = null;

        public Installer()
        {
            // This call is required by the Designer.
            InitializeComponent();
        }

        /// <summary>
        /// Clean up any resources being used.
        /// </summary>
        protected override void Dispose( bool disposing )
        {
            if( disposing )
            {
                if(components != null)
                {
                    components.Dispose();
                }
            }
            base.Dispose( disposing );
        }


        #region Component Designer generated code
        /// <summary>
        /// Required method for Designer support - do not modify
        /// the contents of this method with the code editor.
        /// </summary>
        private void InitializeComponent()
        {
            components = new System.ComponentModel.Container();
        }
        #endregion

#region BL Methods
private void RegisterApplication(IDictionary stateSaver)
{
string step = string.Empty;
try
{
step = "converting appID parameter to GUID";
string appIDString = Context.Parameters["appid"];
Guid appID = new Guid(appIDString);

step = "getting appLocation parameter value";
string appLocation = Context.Parameters["applocation"];
if (appLocation == null || appLocation.Length == 0)
throw new ApplicationException("Unable to register application. AppLocation parameter is not specified.");
appLocation = appLocation.TrimEnd('\\'); // Added to work around VS 2010 parameter bug

step = "getting appName parameter value";
string appName = Context.Parameters["appname"];

step = "getting appDescription parameter value";
string appDescription = Context.Parameters["appdescription"];

step = "getting appPort parameter value";
int port = 0;
string portValue = Context.Parameters["appport"];
if (portValue != null && portValue.Length > 0)
port = int.Parse(portValue);

step = "getting appDefaultDoc parameter value";
string defaultDocument = Context.Parameters["appdefaultdoc"];

step = "getting appKeepRunning parameter value";
string keepRunningString = Context.Parameters["appkeeprunning"];
bool keepRunning = true;
if (keepRunningString != null && keepRunningString.Length > 0)
keepRunning = bool.Parse(keepRunningString);

step = "calling CassiniConfiguration.Metabase.RegisterApplication() method";
CassiniConfiguration.Metabase.RegisterApplication(
appID, appName, port, appDescription,
appLocation, defaultDocument, keepRunning);

stateSaver["AppID"] = appID.ToString();
}
catch (Exception e)
{
string msg = string.Format("Failed to register an application with Cassini while {0}.", step);
throw new Exception(msg, e);
}
}

private void UnregisterApp()
{
string step = string.Empty;
try
{
step = "converting appID parameter to GUID";
string appIDString = Context.Parameters["appid"];
Guid appID = new Guid(appIDString);

step = "calling CassiniConfiguration.Metabase.UnregisterApplication(appID) method";
CassiniConfiguration.Metabase.UnregisterApplication(appID);
}
catch (Exception e)
{
string msg = string.Format("Failed to unregister Cassini application while {0}.", step);
throw new Exception(msg, e);
}
}

#endregion BL Methods

#region Installer class implementation
/// <summary>
/// Install should not be used with VS 2008-generated MSI
/// because Install is called BEFORE Uninstall.
/// </summary>
/// <param name="stateSaver"></param>
        public override void Install(IDictionary stateSaver)
        {
            base.Install (stateSaver);
        }

public override void Commit(IDictionary savedState)
{
base.Commit(savedState);

this.RegisterApplication(savedState);
}

        public override void Uninstall(IDictionary savedState)
        {
            base.Uninstall (savedState);

            this.UnregisterApp();
        }

        public override void Rollback(IDictionary savedState)
        {
            base.Rollback (savedState);

            this.UnregisterApp();
}
#endregion Installer class implementation
}
}