package com.google.marvin.config;



import org.w3c.dom.Document;

import org.w3c.dom.NamedNodeMap;

import org.w3c.dom.NodeList;

import org.xml.sax.SAXException;



import java.io.IOException;

import java.io.InputStream;

import java.net.URL;

import java.net.URLConnection;

import java.util.ArrayList;



import javax.xml.parsers.DocumentBuilder;

import javax.xml.parsers.DocumentBuilderFactory;

import javax.xml.parsers.FactoryConfigurationError;

import javax.xml.parsers.ParserConfigurationException;



import android.app.Activity;

import android.app.ProgressDialog;

import android.os.Bundle;



/**

 * InstallerActivity that displays the list of installable apps from the

 * Eyes-Free project.

 * 

 * @author clchen@google.com (Charles L. Chen)

 */

public class InstallerActivity extends Activity {



  private InstallerActivity self;



  private AppListView appList;

  private ProgressDialog loadingDialog = null;



  /** Called when the activity is first created. */

  @Override

  public void onCreate(Bundle savedInstanceState) {

    super.onCreate(savedInstanceState);

    self = this;



    appList = new AppListView(this);



    setContentView(appList);

    getAppsList();

  }



  private void getAppsList() {

    loadingDialog = ProgressDialog.show(self, "Loading", "Please wait.", true);



    class appListLoader implements Runnable {

      public void run() {

        try {

          URLConnection cn;

          URL url = new URL("http://eyes-free.googlecode.com/svn/trunk/config/assets/applist.xml");

          cn = url.openConnection();

          cn.connect();

          InputStream stream = cn.getInputStream();

          DocumentBuilder docBuild = DocumentBuilderFactory.newInstance().newDocumentBuilder();

          Document appListDoc = docBuild.parse(stream);

          NodeList appNodes = appListDoc.getElementsByTagName("app");



          ArrayList<AppDesc> appDescs = new ArrayList<AppDesc>();

          for (int i = 0; i < appNodes.getLength(); i++) {

            NamedNodeMap attribs = appNodes.item(i).getAttributes();

            String packageName = attribs.getNamedItem("packageName").getNodeValue();

            String title = attribs.getNamedItem("title").getNodeValue();

            String description = attribs.getNamedItem("desc").getNodeValue();

            appDescs.add(new AppDesc(packageName, title, description));

          }



          appList.updateApps(appDescs);

          appList.postInvalidate();

        } catch (IOException e) {

          // TODO Auto-generated catch block

          e.printStackTrace();

        } catch (SAXException e) {

          // TODO Auto-generated catch block

          e.printStackTrace();

        } catch (ParserConfigurationException e) {

          // TODO Auto-generated catch block

          e.printStackTrace();

        } catch (FactoryConfigurationError e) {

          // TODO Auto-generated catch block

          e.printStackTrace();

        } finally {

          loadingDialog.dismiss();

        }

      }

    }

    Thread loadThread = (new Thread(new appListLoader()));

    loadThread.start();

  }











}