// Status.java 
// -----------------------
// part of YaCy
// (C) by Michael Peter Christen; mc@anomic.de
// first published on http://www.anomic.de
// Frankfurt, Germany, 2004
// last major change: 12.07.2004
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
//
// Using this software in any meaning (reading, learning, copying, compiling,
// running) means that you agree that the Author(s) is (are) not responsible
// for cost, loss of data or any harm that may be caused directly or indirectly
// by usage of this softare or this documentation. The usage of this software
// is on your own risk. The installation and usage (starting/running) of this
// software may allow other people or application to access your computer and
// any attached devices and is highly dependent on the configuration of the
// software which must be done by the user of the software; the author(s) is
// (are) also not responsible for proper configuration and usage of the
// software, even if provoked by documentation provided together with
// the software.
//
// Any changes to this file according to the GPL as documented in the file
// gpl.txt aside this file in the shipment you received can be done to the
// lines that follows this copyright notice here, but changes must not be
// done inside the copyright notive above. A re-distribution must contain
// the intact and unchanged copyright notice.
// Contributions and changes to the program code must be marked as such.

// You must compile this file with
// javac -classpath .:../Classes Status.java
// if the shell's current path is HTROOT

import java.text.DecimalFormat;

import de.anomic.http.httpHeader;
import de.anomic.http.httpdByteCountInputStream;
import de.anomic.http.httpdByteCountOutputStream;
import de.anomic.server.serverCore;
import de.anomic.server.serverObjects;
import de.anomic.server.serverSwitch;
import de.anomic.server.serverDate;
import de.anomic.yacy.yacyCore;

public class Status {

    public static serverObjects respond(httpHeader header, serverObjects post, serverSwitch env) {
        // return variable that accumulates replacements
        serverObjects prop = new serverObjects();
        
        // set values
        String s;
        int pos;
        
        /*
          versionProbe=http://www.anomic.de/AnomicHTTPProxy/release.txt
          superseedFile=superseed.txt
         */
        // update seed info
        yacyCore.peerActions.updateMySeed();
        
        // password protection
        if (env.getConfig("adminAccountBase64MD5", "").length() == 0)
            prop.put("protection", 0);//not protected
        else
            prop.put("protection", 1);//protected
        
        // version information
        if ((yacyCore.latestVersion == null) || (yacyCore.latestVersion.length() < 3) || (yacyCore.latestVersion.equals(env.getConfig("version",""))))
            prop.put("versioncomment", 0);//no commet
        else
            prop.put("versioncomment", 1);//new version
        prop.put("versioncomment_latestVersion", yacyCore.latestVersion);
        
        prop.put("host", serverCore.publicLocalIP());
        prop.put("port", env.getConfig("port", "<unknown>"));    
        
        // port forwarding: hostname and port
        if ((serverCore.portForwardingEnabled) && (serverCore.portForwarding != null)) {
            prop.put("portForwarding", 1);
            prop.put("portForwarding_host", serverCore.portForwarding.getHost());
            prop.put("portForwarding_port", Integer.toString(serverCore.portForwarding.getPort()));
            prop.put("portForwarding_status", serverCore.portForwarding.isConnected() ? 1:0);
        } else {
            prop.put("portForwarding", 0);
        }        
        
        if (env.getConfig("remoteProxyUse", "false").equals("true")) {
            prop.put("remoteProxy", 1);
            prop.put("remoteProxy_host", env.getConfig("remoteProxyHost", "<unknown>"));
            prop.put("remoteProxy_port", env.getConfig("remoteProxyPort", "<unknown>"));
        } else {
            prop.put("remoteProxy", 0);//not used
        }
        
        // peer information
        String thisHash = "";
        String thisName = env.getConfig("peerName", "<nameless>");
        if (yacyCore.seedDB.mySeed == null)  {
            thisHash = "not assigned";
            prop.put("peerAddress", 0);//not assigned
            prop.put("peerStatistics", 0);//unknown
        } else {
            prop.put("peerStatistics", 1);
            prop.put("peerStatistics_uptime", serverDate.intervalToString(60000 * Long.parseLong(yacyCore.seedDB.mySeed.get("Uptime", "0"))));
            prop.put("peerStatistics_links", yacyCore.seedDB.mySeed.get("LCount", "unknown"));
            prop.put("peerStatistics_words", yacyCore.seedDB.mySeed.get("ICount", "unknown"));
            prop.put("peerStatistics_juniorConnects", yacyCore.peerActions.juniorConnects);
            prop.put("peerStatistics_seniorConnects", yacyCore.peerActions.seniorConnects);
            prop.put("peerStatistics_principalConnects", yacyCore.peerActions.principalConnects);
            prop.put("peerStatistics_disconnects", yacyCore.peerActions.disconnects);
            prop.put("peerStatistics_connects", yacyCore.seedDB.mySeed.get("CCount", "0"));
            if (yacyCore.seedDB.mySeed.getAddress() == null) {
                thisHash = yacyCore.seedDB.mySeed.hash;
                prop.put("peerAddress", 1);//not assigned + instructions
            } else {
                thisHash = yacyCore.seedDB.mySeed.hash;
                prop.put("peerAddress", 2);//Address
                prop.put("peerAddress_address", yacyCore.seedDB.mySeed.getAddress());
                prop.put("peerAddress_peername", env.getConfig("peerName", "<nameless>").toLowerCase());
            }
        }
        String peerStatus = ((yacyCore.seedDB.mySeed == null) ? "virgin" : yacyCore.seedDB.mySeed.get("PeerType", "virgin"));
        if (peerStatus.equals("virgin")) {
            prop.put("peerStatus", 0);//virgin
        } else if (peerStatus.equals("junior")) {
            prop.put("peerStatus", 1);//junior
        } else if (peerStatus.equals("senior")) {
            prop.put("peerStatus", 2);//senior
        } else if (peerStatus.equals("principal")) {
            prop.put("peerStatus", 3);//principal
            prop.put("peerStatus_seedURL", yacyCore.seedDB.mySeed.get("seedURL", "?"));
        }
        prop.put("peerName", thisName);
        prop.put("hash", thisHash);
        String seedUploadMethod = env.getConfig("seedUploadMethod","");
        if (
                (!seedUploadMethod.equalsIgnoreCase("none")) || 
                ((seedUploadMethod.equals("")) && (env.getConfig("seedFTPPassword","").length() > 0)) ||
                ((seedUploadMethod.equals("")) && (env.getConfig("seedFilePath", "").length() > 0))
        ) {
            if (seedUploadMethod.equals("")) {
                if (env.getConfig("seedFTPPassword","").length() > 0)
                    env.setConfig("seedUploadMethod","Ftp");
                if (env.getConfig("seedFilePath","").length() > 0)
                    env.setConfig("seedUploadMethod","File");                
            }                        
            
            if (seedUploadMethod.equalsIgnoreCase("ftp")) {
                prop.put("seedServer", 1);//enabled
                prop.put("seedServer_seedServer", env.getConfig("seedFTPServer",""));
            } else if (seedUploadMethod.equalsIgnoreCase("scp")) {
                prop.put("seedServer", 1);//enabled
                prop.put("seedServer_seedServer", env.getConfig("seedScpServer",""));
            } else if (seedUploadMethod.equalsIgnoreCase("file")) {
                prop.put("seedServer", 2);//enabled
                prop.put("seedServer_seedFile", env.getConfig("seedFilePath",""));
            }
            prop.put("seedServer_lastUpload",
                    serverDate.intervalToString(System.currentTimeMillis()-yacyCore.lastSeedUpload_timeStamp));
        } else {
            prop.put("seedServer", 0);//disabled
        }
        
        if ((yacyCore.seedDB != null) && (yacyCore.seedDB.sizeConnected() > 0)){
            prop.put("otherPeers", 1);
            prop.put("otherPeers_num", yacyCore.seedDB.sizeConnected());
        }else{
            prop.put("otherPeers", 0);//not online
        }
        
        Runtime rt = Runtime.getRuntime();

        // pop-up trigger management and gc
        if (post != null) {
            if (post.containsKey("dispop")) env.setConfig("browserPopUpTrigger", "false");
            if (post.containsKey("enpop")) env.setConfig("browserPopUpTrigger", "true");
            if (post.containsKey("gc")) rt.gc();
        }
        
        if (env.getConfig("browserPopUpTrigger", "false").equals("false")) {
            prop.put("popup", 0);
        } else {
            prop.put("popup", 1);
        }
        
        if (env.getConfig("onlineMode", "1").equals("1")) {
            prop.put("omode", 1);
        } else {
            prop.put("omode", 2);
        }
        
        // memory usage and system attributes
        prop.put("freeMemory", bytesToString(rt.freeMemory()));
        prop.put("totalMemory", bytesToString(rt.totalMemory()));
        prop.put("maxMemory", bytesToString(rt.maxMemory()));
        prop.put("processors", rt.availableProcessors());
        
        // proxy traffic
        prop.put("trafficIn",bytesToString(httpdByteCountInputStream.getGlobalCount()));
        prop.put("trafficOut",bytesToString(httpdByteCountOutputStream.getGlobalCount()));
        
        // return rewrite properties
        return prop;
    }
    
    public static String bytesToString(long byteCount) {  
        try {
            StringBuffer byteString = new StringBuffer();
            
            DecimalFormat df = new DecimalFormat( "0.00" );
            if (byteCount > 1073741824) {                
                byteString.append(df.format((double)byteCount / (double)1073741824 ))
                          .append(" GB");
            } else if (byteCount > 1048576) {
                byteString.append(df.format((double)byteCount / (double)1048576))
                          .append(" MB");              
            } else if (byteCount > 1024) {
                byteString.append(df.format((double)byteCount /(double)1024))
                          .append(" KB");             
            } else {
                byteString.append(Long.toString(byteCount))
                .append(" Bytes");                
            }
            
            return byteString.toString();       
        } catch (Exception e) {
            return "unknown";
        }        
        
    }

}