/*
 * Copyright 2004-2012 ICEsoft Technologies Canada Corp.
 *
 * 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.icefaces.ace.component.gmap;

import java.io.IOException;
import java.util.Hashtable;
import java.util.Iterator;
import java.util.Map;

import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.context.ResponseWriter;
import javax.faces.event.PhaseId;

import org.icefaces.ace.component.ajax.AjaxBehavior;
import org.icefaces.ace.renderkit.CoreRenderer;
import org.icefaces.ace.util.ComponentUtils;
import org.icefaces.ace.util.JSONBuilder;
import org.icefaces.render.MandatoryResourceComponent;

@MandatoryResourceComponent(tagName = "gMap", value = "org.icefaces.ace.component.gmap.GMap")
public class GMapRenderer extends CoreRenderer {
    Hashtable<String, String> currentValues = new Hashtable<String, String>();
    int initial = 0;

    public void encodeBegin(FacesContext context, UIComponent component)
            throws IOException {
        ResponseWriter writer = context.getResponseWriter();
        String clientId = component.getClientId(context);
        if (initial < 2) {
            currentValues.put("address", "blank" + initial);
            currentValues.put("latitude", "blank" + initial);
            currentValues.put("longitude", "blank" + initial);
            currentValues.put("type", "blank" + initial);
            currentValues.put("zoom", "blank" + initial);
            currentValues.put("options", "blank" + initial);
            initial +=1;
        }
        GMap gmap = (GMap) component;
        writer.startElement("div", null);
        writer.writeAttribute("id", clientId, null);
        writer.writeAttribute("style", "width: 800px; height: 500px", null);
        writer.endElement("div");
        writer.startElement("span", null);
        writer.writeAttribute("id", clientId + "_script", null);
        writer.startElement("script", null);
        writer.writeAttribute("type", "text/javascript", null);
        writer.write("ice.ace.jq(function() {");
        if ((gmap.isLocateAddress() || !gmap.isIntialized()) && (gmap.getAddress() != null && gmap.getAddress().length() > 2)) {
            if (!gmap.getAddress().equalsIgnoreCase(currentValues.get("address"))) {
                writer.write("ice.ace.gMap.locateAddress('" + clientId + "', '" + gmap.getAddress() + "');");
                currentValues.put("address", gmap.getAddress());
            }
        } else {
            if (!(gmap.getLatitude().equalsIgnoreCase(currentValues.get("latitude"))) || !(gmap.getLongitude().equalsIgnoreCase(currentValues.get("longitude")))) {
                writer.write("ice.ace.gMap.getGMapWrapper('" + clientId + "').getRealGMap().setCenter(new google.maps.LatLng(" + gmap.getLatitude() + "," + gmap.getLongitude() + "));");
                currentValues.put("longitude", gmap.getLongitude());
                currentValues.put("latitude", gmap.getLatitude());
            }
        }
        if(!(Double.toString(gmap.getZoomLevel()).equalsIgnoreCase(currentValues.get("zoom"))))
        {
            writer.write("ice.ace.gMap.getGMapWrapper('" + clientId + "').getRealGMap().setZoom(" + gmap.getZoomLevel() + ");");
            currentValues.put("zoom", Double.toString(gmap.getZoomLevel()));
        }
        if(!(gmap.getType().equalsIgnoreCase(currentValues.get("type"))))
        {
            writer.write("ice.ace.gMap.setMapType('" + clientId + "','" + gmap.getType().toUpperCase() + "');");
            currentValues.put("type", gmap.getType());
        }
        if (gmap.getOptions() != null && gmap.getOptions().length() > 1)
            writer.write("ice.ace.gMap.addOptions('" + clientId + "',\"" + gmap.getOptions() + "\");");
        writer.write("});");
        writer.endElement("script");
        writer.endElement("span");
    }

    @Override
    public void encodeChildren(FacesContext context, UIComponent component) throws IOException {
        if (context == null || component == null) {
            throw new NullPointerException();
        }
        if (component.getChildCount() == 0) return;
        Iterator kids = component.getChildren().iterator();
        while (kids.hasNext()) {
            UIComponent kid = (UIComponent) kids.next();
            kid.encodeBegin(context);
            if (kid.getRendersChildren()) {
                kid.encodeChildren(context);
            }
            kid.encodeEnd(context);
        }
    }

    @Override
    public boolean getRendersChildren() {
        return true;
    }
}