import java.io.File;
import java.util.ArrayList;

import de.anomic.http.httpHeader;
import de.anomic.http.httpdRobotsTxtConfig;
import de.anomic.plasma.plasmaSwitchboard;
import de.anomic.server.serverObjects;
import de.anomic.server.serverSwitch;
import de.anomic.server.servletProperties;

public class robots {
    
    public static servletProperties respond(httpHeader header, serverObjects post, serverSwitch env) {
        final servletProperties prop = new servletProperties();
        final httpdRobotsTxtConfig rbc = ((plasmaSwitchboard)env).robotstxtConfig;
        
        if (rbc.isAllDisallowed()) {
            prop.put(httpdRobotsTxtConfig.ALL, 1);
        } else {
            if (rbc.isBlogDisallowed()) prop.put(httpdRobotsTxtConfig.ALL + "_" + httpdRobotsTxtConfig.BLOG, 1);
            if (rbc.isBookmarksDisallowed()) prop.put(httpdRobotsTxtConfig.ALL + "_" + httpdRobotsTxtConfig.BOOKMARKS, 1);
            if (rbc.isFileshareDisallowed()) prop.put(httpdRobotsTxtConfig.ALL + "_" + httpdRobotsTxtConfig.FILESHARE, 1);
            if (rbc.isHomepageDisallowed()) prop.put(httpdRobotsTxtConfig.ALL + "_" + httpdRobotsTxtConfig.HOMEPAGE, 1);
            if (rbc.isNetworkDisallowed()) prop.put(httpdRobotsTxtConfig.ALL + "_" + httpdRobotsTxtConfig.NETWORK, 1);
            if (rbc.isNewsDisallowed()) prop.put(httpdRobotsTxtConfig.ALL + "_" + httpdRobotsTxtConfig.NEWS, 1);
            if (rbc.isStatusDisallowed()) prop.put(httpdRobotsTxtConfig.ALL + "_" + httpdRobotsTxtConfig.STATUS, 1);
            if (rbc.isSurftipsDisallowed()) prop.put(httpdRobotsTxtConfig.ALL + "_" + httpdRobotsTxtConfig.SURFTIPS, 1);
            if (rbc.isWikiDisallowed()) prop.put(httpdRobotsTxtConfig.ALL + "_" + httpdRobotsTxtConfig.WIKI, 1);
            
            if (rbc.isLockedDisallowed() || rbc.isDirsDisallowed()) {
                final ArrayList[] p = getFiles(env.getConfig(plasmaSwitchboard.HTROOT_PATH, plasmaSwitchboard.HTROOT_PATH_DEFAULT));
                if (rbc.isLockedDisallowed()) {
                    prop.put(httpdRobotsTxtConfig.ALL + "_" + httpdRobotsTxtConfig.LOCKED, p[0].size());
                    for (int i=0; i<p[0].size(); i++)
                        prop.put(httpdRobotsTxtConfig.ALL + "_" + httpdRobotsTxtConfig.LOCKED + "_" + i + "_page", p[0].get(i));
                }
                if (rbc.isDirsDisallowed()) {
                    prop.put(httpdRobotsTxtConfig.ALL + "_" + httpdRobotsTxtConfig.DIRS, p[1].size());
                    for (int i=0; i<p[1].size(); i++)
                        prop.put(httpdRobotsTxtConfig.ALL + "_" + httpdRobotsTxtConfig.DIRS + "_" + i + "_dir", p[1].get(i));
                }
            }
        }
        
        return prop;
    }
    
    private static ArrayList[] getFiles(String htrootPath) {
        final File htroot = new File(htrootPath);
        if (!htroot.exists()) return null;
        final ArrayList htrootFiles = new ArrayList();
        final ArrayList htrootDirs = new ArrayList();
        final String[] htroots = htroot.list();
        File file;
        for (int i=0, dot; i<htroots.length; i++) {
            if (htroots[i].equals("www")) continue;
            file = new File(htroot, htroots[i]);
            if (file.isDirectory()) {
                htrootDirs.add(htroots[i]);
            } else if (
                    (dot = htroots[i].lastIndexOf('.')) < 2 ||
                    htroots[i].charAt(dot - 2) == '_' && htroots[i].charAt(dot - 1) == 'p'
            ) {
                htrootFiles.add(htroots[i]);
            }
        }
        return new ArrayList[] { htrootFiles, htrootDirs };
    }
}