/*
 *                 Sun Public License Notice
 * 
 * The contents of this file are subject to the Sun Public License
 * Version 1.0 (the "License"). You may not use this file except in
 * compliance with the License. A copy of the License is available at
 * http://www.sun.com/
 * 
 * The Original Code is NetBeans. The Initial Developer of the Original
 * Code is Sun Microsystems, Inc. Portions Copyright 1997-2003 Sun
 * Microsystems, Inc. All Rights Reserved.
 */

package org.netbeans.nbbuild;

import java.io.*;
import java.net.URL;
import java.net.MalformedURLException;
import java.util.*;
import java.util.Date;

import org.apache.tools.ant.BuildException;
import org.apache.tools.ant.Task;


/**
 * Takes result of given query and generates plan. It allows
 * to store all planning info on one place (in IZ).
 * 

 * The generated plan may need to be postrocessed by PlanPreprocess task.
 *
 * @author Petr Kuzel
 */
public final class NoPlans extends Task {

    /** Holds URL of issuezilla's interface */
    private URL urlBase;
    
    /** Holds value of property destination. */
    private java.io.File target;

    /**
     * URL query part of IZ xml cgi to be executed
     */
    private String query;

    /** Holds value of property proxyHost. */
    private String proxyHost;    
    
    /** Holds value of property proxyPort. */
    private int proxyPort = -1;
    
    /**
     * Currently maps directly to <module-requirements>' module attribute.
     */
    private String group;

    /** Getter for property urlBase.
     * @return Value of property urlBase.
     */
    public URL getUrlBase() {
        if (urlBase == null) {
            try {
                urlBase = new URL("http://www.netbeans.org/issues/");
            } catch (MalformedURLException e) {
                throw new Error("Internal error");
            }
        }
        return this.urlBase;
    }
    
    /** Setter for property urlBase.
     * @param urlBase New value of property urlBase.
     */
    public void setUrlBase(String urlBase) {
        try {
            this.urlBase = new URL(urlBase);
        } catch (MalformedURLException e) {
            throw new BuildException ("Invalid urlBase attribute!");
        }
    }

    /** Getter for property destination.
     * @return Value of property destination.
     */
    public java.io.File getTarget() {
        return this.target;
    }
    
    /** Setter for property destination.
     * @param destination New value of property destination.
     */
    public void setTarget(java.io.File destination) {
        this.target = destination;
    }

    public String getQuery() {
        return query;
    }

    /**
     * URL query part of IZ xml cgi to be executed.
     * While inlining into source Ant script do not forget
     * to escape & characters using &amp;
     * entity reference.
     */
    public void setQuery(String query) {
        this.query = query;
    }

    /** Getter for property proxyHost.
     * @return Value of property proxyHost.
     */
    public String getProxyHost() {
        return this.proxyHost;
    }    
    
    /** Setter for property proxyHost.
     * @param proxyHost New value of property proxyHost.
     */
    public void setProxyHost(String proxyHost) {
        if ("".equals (proxyHost)) {
            proxyHost = null;
        }
        this.proxyHost = proxyHost;
    }    
        
    /** Getter for property proxyPort.
     * @return Value of property proxyPort.
     */
    public int getProxyPort() {
        return this.proxyPort;
    }
    
    /** Setter for property proxyPort.
     * @param proxyPort New value of property proxyPort.
     */
    public void setProxyPort(int proxyPort) {
        this.proxyPort = proxyPort;
    }
    
    public String getGroup() {
        return group;
    }

    /**
     * Currently maps directly to <module-requirements>' module attribute.
     * May change in future.
     */
    public void setGroup(String module) {
        this.group = module;
    }


    public void execute () throws BuildException {
        if (getTarget () == null) throw new BuildException ("Missing target attribute!");
        if (getQuery () == null) throw new BuildException ("Missing query attribute!");
        if (getGroup () == null) throw new BuildException ("Missing module attribute!");

        Object previousPort = null;
        Object previousHost = null;
        if (proxyPort != -1) {
            previousPort = System.getProperties ().put ("http.proxyPort", new Integer (proxyPort).toString ());
        }
        if (proxyHost != null) {
            previousHost = System.getProperties ().put ("http.proxyHost", proxyHost);
        }
        
        log ("Planning: " + getTarget ());

        Writer w = null;
        try {
            File out = getTarget();
            out.createNewFile();
            w = new OutputStreamWriter(new FileOutputStream(out), "utf8");

            Issuezilla iz = new Issuezilla(getUrlBase());
            int[] plannedIssues = iz.query(getQuery());

            w.write("\n");
            w.write("\n\n\n");
            w.write("\n");
            for (int i = 0; i\n");
            }
            w.write("\n");

        } catch (IOException ex) {
            throw new BuildException (ex);
        } catch (org.xml.sax.SAXException ex) {
            throw new BuildException (ex);
        } finally {
            if (w != null) {
                try {
                    w.close();
                } catch (IOException e) {
                }
            }
            
            if (previousHost != null) {
                System.setProperty("http.proxyHost", (String)previousHost);
            }
            if (previousPort != null) {
                System.setProperty("http.proxy", (String)previousPort);
            }
        }
    }

}