/* ======================================================================
   Parts Copyright 2006 University of Leeds, Oxford University, University of the Highlands and Islands.

   Licensed under the Apache License, Version 2.0 (the "License");
   you may not use this file except in compliance with the License.
   You may obtain a copy of the License at

       http://www.apache.org/licenses/LICENSE-2.0

   Unless required by applicable law or agreed to in writing, software
   distributed under the License is distributed on an "AS IS" BASIS,
   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   See the License for the specific language governing permissions and
   limitations under the License.

====================================================================== */

package org.bodington.servlet.facilities;

import org.apache.log4j.Logger;

import org.bodington.servlet.*;
import java.io.*;
import javax.servlet.*;

import org.bodington.server.resources.Resource;
import org.bodington.server.resources.HeadingResource;
import org.bodington.server.BuildingServerException;
import org.bodington.server.realm.Permission;

public class HeadingFacility extends org.bodington.servlet.facilities.Facility
{
    private static Logger log = Logger.getLogger(HeadingFacility.class);

    public boolean canCopy(Resource resource)
    {
        return true;
    }

    public Resource newResource()
    {
        return new HeadingResource();
    }

    public void insert(Request req, PrintWriter out, String command,
        String insertname) throws ServletException, IOException
    {
        log.debug(" HeadingFacility insert()");
        super.insert(req, out, command, insertname);
    }

    protected void resourceMenuItem(Resource resource, Request breq,
        PrintWriter out, ResourceMenuOutputState state, int depth, int highlight)
    throws IOException, BuildingServerException
    {
        String href = null, title = null, target = null;
        boolean manage = false;
        
        manage = resource.checkPermission(Permission.MANAGE);
        
        href = ( !state.rootless && depth==1  )? null:
            ( breq.getContextPath() +breq.getServletPath() + resource.getFullName() );
        
        target = "_top";
        
        title = resource.getTitle();
        
        // heading level for title line matches depth but there are only
        // six heading levels in HTML so stop there.
        int hlevel = (depth > 6) ? 6 : depth;
        int level = ((depth - 1) % 10) + 1;
        
        // title in heading with appropriate class attribute
        out.print("          <h");
        out.print(hlevel);
        
        out.print(" class=\"" + state.css_class_prefix
            + "_heading_node_title\">");
        
        out.print("<strong>");
        
        if (title != null)
        {
            out.print(title);
        }
        else
        {
            out.print("{untitled item}");
        }
        
        // headings have 'manage' link after title
        if (href != null && manage)
        {
            out.print("&nbsp;<a");
            if (target != null)
            {
                out.print(" target=\"");
                out.print(target);
                out.print("\"");
            }
            out.print(" href=\"");
            out.print(href);
            out.print("\" title=\"Manage Heading.\"><span style=\"font-size: x-small\"><sup>Manage</sup></span></a>");
        }
        
        out.print("</strong>");
        
        out.print("</h"); // end of node_title
        out.print(hlevel);
        out.println(">");
        
        String content = resource.getDescription();
        
        if ( content != null && content.length() > 0 )
        {            
            out.print("<div class=\"" + state.css_class_prefix + "_node_content");
            
            if (depth == 1)
            {
                out.print("_without_stalk");
            }
            out.print("_lev");
            out.print(level);
            out.print("_hl");
            out.print(highlight);
            out.print("\">");
            
            out.print(content);
            
            String markup = timedResourceText(resource);
            if (markup != null)
                out.print("<div>" + markup + "</div>");

            out.print("</div>");
            out.print( "<div class=\"clearer\">&nbsp;</div>\n");
        }
    }

    public boolean isResourceAtDefaultURL()
    {
        return false;
    }
}