// This appears in Core Web Programming from
// Prentice Hall Publishers, and may be freely used
// or adapted. 1997 Marty Hall, hall@apl.jhu.edu.
// Modified by Nong Lin, Nov. 1999

import java.awt.*;
import java.util.*;


public class searchClient extends QuittableFrame
                       implements Runnable,
                                  Interruptable {
  public static void main(String[] args) {
    searchClient wc = new searchClient("Search Client");
    wc.resize(600, 700);
    wc.show();
  }

  private LabeledTextField hostField, portField,
          requestLineField;
  private TextArea resultArea, summaryArea;
  private String host, requestLine;
  private int port;
  private summaryResult summaryresult;
  private Button submitButton, interruptButton;
  private boolean interrupted = false;

  public searchClient(String title) {
    super(title);

    setBackground(Color.lightGray);
    setLayout(new BorderLayout(5, 30));
    int fontSize = 14;

    Font labelFont =
      new Font("TimesRoman", Font.BOLD, fontSize);
    Font headingFont =
      new Font("Helvetica", Font.BOLD, fontSize+4);
    Font textFont =
      new Font("Courier", Font.BOLD, fontSize-2);

    // for data input
    Panel inputPanel = new Panel();
    inputPanel.setLayout(new BorderLayout());

    Panel labelPanel = new Panel();
    labelPanel.setLayout(new GridLayout(3,1));

    hostField = new LabeledTextField("Host:", labelFont,
                                     30, textFont);

    portField = new LabeledTextField("Port:", labelFont,
                                     "80", 5, textFont);

    requestLineField =
      new LabeledTextField("Request Line:",
                           labelFont,
                           "GET / HTTP/1.0",
                           50,
                           textFont);

    labelPanel.add(hostField);
    labelPanel.add(portField);
    labelPanel.add(requestLineField);


    inputPanel.add("North", labelPanel);

    Panel buttonPanel = new Panel();
    submitButton = new Button("Submit Request");
    submitButton.setFont(labelFont);
    buttonPanel.add(submitButton);
    inputPanel.add("South", buttonPanel);  //?
   
    add("North", inputPanel);


    //labelPanel.add(summaryLabel);
    
    Panel summaryPanel = new Panel();

    summaryPanel.setLayout(new BorderLayout());
    Label summaryLabel =
    new Label("Summary Result:");
    summaryLabel.setFont(labelFont);
    summaryPanel.add("North", summaryLabel);
    summaryArea = new TextArea(5,80);
    summaryArea.setFont(textFont);
    summaryPanel.add("South", summaryArea);
    add("Center", summaryPanel);

    Panel resultPanel = new Panel();    
    resultPanel.setLayout(new BorderLayout());
    Label resultLabel =
    new Label("Results", Label.CENTER);
    resultLabel.setFont(headingFont);
    resultPanel.add("North", resultLabel); 
    resultArea = new TextArea();
    resultArea.setFont(textFont);
    resultPanel.add("Center", resultArea);

    Panel interruptPanel = new Panel();
    interruptButton = new Button("Interrupt Download");
    interruptButton.setFont(labelFont);
    interruptPanel.add(interruptButton);
    resultPanel.add("South", interruptPanel);
    add("South", resultPanel);
  }

  public boolean action(Event event, Object object) {
    if (event.target == submitButton) {
      Thread downloader = new Thread(this);
      System.out.println("Client action start");
      downloader.start();
      return(true);
    } else if (event.target == interruptButton) {
      interrupted = true;
      return(true);
    } else
      return(false);
  }

  //System.out.println("searchClient before run");

  public void run() {
    interrupted = false;
    System.out.println("searchClient before run");
    if (checkArgs()) 
      new HttpClient(host,
		     port, 
		     requestLine,
                     summaryArea,
		     resultArea,
		     this);
   System.out.println("searchClient run");
  }
                         
  public boolean interrupted() {
    return(interrupted);
  }

  private boolean checkArgs() {
    host = hostField.getTextField().getText();
    System.out.println("check host:" + host);
    if (host.length() == 0) {
      report("Missing hostname");
      return(false);
    }
    String portString =
      portField.getTextField().getText();
    if (portString.length() == 0) {
      report("Missing port number");
      return(false);
    }

    try {
      port = Integer.parseInt(portString);
      System.out.println("check port");
    } catch(NumberFormatException nfe) {
      report("Illegal port number: " + portString);
      return(false);
    }
    requestLine =
      requestLineField.getTextField().getText();
      System.out.println("check requestLine: " + requestLine);
    if (requestLine.length() == 0) {
      report("Missing request line");
      return(false);
    }
    return(true);
  }

  private void report(String s) {
    resultArea.setText(s);
  }