package net.i2p.router.web;

import net.i2p.I2PAppContext;
import net.i2p.crypto.TrustedUpdate;
import net.i2p.data.DataHelper;

/**
 *
 */
public class ConfigUpdateHandler extends FormHandler {
    private String _newsURL;
    private long _refreshFrequency;
    private String _updateURL;
    private String _updatePolicy;
    private String _proxyHost;
    private String _proxyPort;
    private boolean _updateThroughProxy;
    private String _trustedKeys;

    public static final String PROP_NEWS_URL = "router.newsURL";
//  public static final String DEFAULT_NEWS_URL = "http://dev.i2p.net/cgi-bin/cvsweb.cgi/i2p/news.xml?rev=HEAD";
    public static final String DEFAULT_NEWS_URL = "http://complication.i2p/news.xml";
    public static final String PROP_REFRESH_FREQUENCY = "router.newsRefreshFrequency";
    public static final String DEFAULT_REFRESH_FREQUENCY = 24*60*60*1000 + "";
    public static final String PROP_UPDATE_POLICY = "router.updatePolicy";
    public static final String DEFAULT_UPDATE_POLICY = "download";
    public static final String PROP_SHOULD_PROXY = "router.updateThroughProxy";
    public static final String DEFAULT_SHOULD_PROXY = Boolean.TRUE.toString();
    public static final String PROP_PROXY_HOST = "router.updateProxyHost";
    public static final String DEFAULT_PROXY_HOST = "127.0.0.1";
    public static final String PROP_PROXY_PORT = "router.updateProxyPort";
    public static final String DEFAULT_PROXY_PORT = "4444";
    
    public static final String PROP_UPDATE_URL = "router.updateURL";
//  public static final String DEFAULT_UPDATE_URL = "http://dev.i2p.net/i2p/i2pupdate.sud";
    public static final String DEFAULT_UPDATE_URL =
    "http://echelon.i2p/i2p/i2pupdate.sud\r\n" +
    "http://stats.i2p/i2p/i2pupdate.sud\r\n" +
    "http://complication.i2p/i2p/i2pupdate.sud\r\n" +
    "http://www.i2p2.i2p/_static/i2pupdate.sud\r\n" +
    "http://update.postman.i2p/i2pupdate.sud" ;
    
    public static final String PROP_TRUSTED_KEYS = "router.trustedUpdateKeys";
    
    
    protected void processForm() {
        if ("Check for update now".equals(_action)) {
            NewsFetcher fetcher = NewsFetcher.getInstance(I2PAppContext.getGlobalContext());
            fetcher.fetchNews();
            if (fetcher.updateAvailable()) {
                if ( (_updatePolicy == null) || (!_updatePolicy.equals("notify")) )
                    addFormNotice("Update available, attempting to download now");
                else
                    addFormNotice("Update available, click button on left to download");
            } else
                addFormNotice("No update available");
        }

        if ( (_newsURL != null) && (_newsURL.length() > 0) ) {
            String oldURL = _context.router().getConfigSetting(PROP_NEWS_URL);
            if ( (oldURL == null) || (!_newsURL.equals(oldURL)) ) {
                _context.router().setConfigSetting(PROP_NEWS_URL, _newsURL);
                addFormNotice("Updating news URL to " + _newsURL);
            }
        }
        
        if ( (_proxyHost != null) && (_proxyHost.length() > 0) ) {
            String oldHost = _context.router().getConfigSetting(PROP_PROXY_HOST);
            if ( (oldHost == null) || (!_proxyHost.equals(oldHost)) ) {
                _context.router().setConfigSetting(PROP_PROXY_HOST, _proxyHost);
                addFormNotice("Updating proxy host to " + _proxyHost);
            }
        }
        
        if ( (_proxyPort != null) && (_proxyPort.length() > 0) ) {
            String oldPort = _context.router().getConfigSetting(PROP_PROXY_PORT);
            if ( (oldPort == null) || (!_proxyPort.equals(oldPort)) ) {
                _context.router().setConfigSetting(PROP_PROXY_PORT, _proxyPort);
                addFormNotice("Updating proxy port to " + _proxyPort);
            }
        }
        
        if (_updateThroughProxy) {
            _context.router().setConfigSetting(PROP_SHOULD_PROXY, Boolean.TRUE.toString());
        } else {
            _context.router().setConfigSetting(PROP_SHOULD_PROXY, Boolean.FALSE.toString());
        }
        
        String oldFreqStr = _context.router().getConfigSetting(PROP_REFRESH_FREQUENCY);
        long oldFreq = -1;
        if (oldFreqStr != null) 
            try { oldFreq = Long.parseLong(oldFreqStr); } catch (NumberFormatException nfe) {}
        if (_refreshFrequency != oldFreq) {
            _context.router().setConfigSetting(PROP_REFRESH_FREQUENCY, ""+_refreshFrequency);
            addFormNotice("Updating refresh frequency to " + DataHelper.formatDuration(_refreshFrequency));
        }

        if ( (_updatePolicy != null) && (_updatePolicy.length() > 0) ) {
            String oldPolicy = _context.router().getConfigSetting(PROP_UPDATE_POLICY);
            if ( (oldPolicy == null) || (!_updatePolicy.equals(oldPolicy)) ) {
                _context.router().setConfigSetting(PROP_UPDATE_POLICY, _updatePolicy);
                addFormNotice("Updating update policy to " + _updatePolicy);
            }
        }

        if ( (_updateURL != null) && (_updateURL.length() > 0) ) {
            _updateURL = _updateURL.replaceAll("\r\n", ",").replaceAll("\n", ",");
            String oldURL = _context.router().getConfigSetting(PROP_UPDATE_URL);
            if ( (oldURL == null) || (!_updateURL.equals(oldURL)) ) {
                _context.router().setConfigSetting(PROP_UPDATE_URL, _updateURL);
                addFormNotice("Updating update URLs.");
            }
        }

        if ( (_trustedKeys != null) && (_trustedKeys.length() > 0) ) {
            String oldKeys = new TrustedUpdate(_context).getTrustedKeysString();
            if ( (oldKeys == null) || (!_trustedKeys.equals(oldKeys)) ) {
                _context.router().setConfigSetting(PROP_TRUSTED_KEYS, _trustedKeys);
                addFormNotice("Updating trusted keys.");
            }
        }
        
        _context.router().saveConfig();
    }
    
    public void setNewsURL(String url) { _newsURL = url; }
    public void setRefreshFrequency(String freq) {
        try { _refreshFrequency = Long.parseLong(freq); } catch (NumberFormatException nfe) {}
    }
    public void setUpdateURL(String url) { _updateURL = url; }
    public void setUpdatePolicy(String policy) { _updatePolicy = policy; }
    public void setTrustedKeys(String keys) { _trustedKeys = keys; }
    public void setUpdateThroughProxy(String foo) { _updateThroughProxy = true; }
    public void setProxyHost(String host) { _proxyHost = host; }
    public void setProxyPort(String port) { _proxyPort = port; }
}