import java.util.*;
import java.io.*;
import javax.swing.*;
import java.awt.GridBagLayout;
import java.awt.GridBagConstraints;
import java.awt.Insets;
// a simple issues library
import ca.odell.issuezilla.*;
// glazed lists
import ca.odell.glazedlists.*;
import ca.odell.glazedlists.swing.*;

/**
 * An IssueBrowser is a program for finding and viewing issues.
 * 
 * @author <href="mailto:jesse@odel.on.ca">Jesse Wilson</a>
 */
public class IssuesBrowser {
  
  /** event list that hosts the issues */
  private EventList issuesEventList = new BasicEventList();
  
  /**
   * Create an IssueBrowser for the specified issues.
   */
  public IssuesBrowser(Collection issues) {
    issuesEventList.addAll(issues);
  }
  
  /**
   * Display a frame for browsing issues.
   */
  public void display() {
    // create a panel with a table
    JPanel panel = new JPanel();
    panel.setLayout(new GridBagLayout());
    EventListModel issuesListModel = new EventListModel(issuesEventList);
    JList issuesJList = new JList(issuesListModel);
    JScrollPane issuesListScrollPane = new JScrollPane(issuesJList);
    panel.add(issuesListScrollPane, new GridBagConstraints(...));
    
    // create a frame with that panel
    JFrame frame = new JFrame("Issues");
    frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
    frame.setSize(540, 380);
    frame.getContentPane().add(panel);
    frame.show();
  }
  
  /**
   * Launch the IssuesBrowser from the commandline.
   */
  public static void main(String[] args) {
    if(args.length != 1) {
      System.out.println("Usage: IssuesBrowser <file>");
      return;
    }
    
    // load some issues
    Collection issues = null;
    try {
      IssuezillaXMLParser parser = new IssuezillaXMLParser();
      InputStream issuesInStream = new FileInputStream(args[0]);
      issues = parser.loadIssues(issuesInStream, null);
      issuesInStream.close();
    } catch(IOException e) {
      e.printStackTrace();
      return;
    }

    // create the browser
    IssuesBrowser browser = new IssuesBrowser(issues);
    browser.display();
  }
}