/**
 *
 *   Copyright 2015 sourceforge.
 *
 *   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.gwtopenmaps.openlayers.client.control;

import org.gwtopenmaps.openlayers.client.layer.Vector;
import org.gwtopenmaps.openlayers.client.util.JObjectArray;
import org.gwtopenmaps.openlayers.client.util.JSObject;
import org.gwtopenmaps.openlayers.client.util.JSObjectWrapper;

public class SnappingOptions extends JSObjectWrapper {

    public SnappingOptions(JSObject object) {
        super(object);
    }

    public SnappingOptions() {
        this(JSObject.createJSArray());
    }

    /**
     * Snap to closest feature in first target layer that applies. Default is
     * true. If false, all features in all target layers will be checked and the
     * closest feature in all target layers will be chosen. The greedy property
     * determines if the order of the target layers is significant. By default,
     * the order of the target layers is significant where layers earlier in the
     * target layer list have precedence over layers later in the list. Within a
     * single layer, the closest feature is always chosen for snapping. This
     * property only determines whether the search for a closer feature
     * continues after an eligible feature is found in a target layer.
     *
     * @param greedy
     */
    public void setGreedy(boolean greedy) {
        this.getJSObject().setProperty("greedy", greedy);
    }

    /**
     * targets - {Array(OpenLayers.Layer.Vector)} A list of vector layers the
     * defaults from the <defaults>
     * property will apply. The editable layer itself may be a target layer -
     * allowing newly created or edited features to be snapped to existing
     * features from the same layer. If no targets are provided the layer given
     * in the constructor (as <layer>) will become the initial target.
     *
     * TODO ahhughes, which method is best?
    *
     */
    public void setTargets(Vector[] targets) {
        JSObject[] jsObjects = new JSObject[targets.length];
        for (int i = 0; i < targets.length; i++) {
            jsObjects[i] = targets[i].getJSObject();
        }

        JObjectArray array = new JObjectArray(jsObjects);
        getJSObject().setProperty("targets", array.getJSObject());
    }
//      public void setTargets(Vector[] vector) {
//              JSObject arrayVector = JSObject.createJSArray();
//              for(int i=0; i<vector.length; i++) {
//                      arrayVector.setProperty(i+"", vector[i].getJSObject());
//              }
//              this.getJSObject().setProperty("targets", arrayVector);
//      }

    /**
     * targets - {Array(Object)} A list of objects for configuring target
     * layers. See valid properties of the target objects below. If the items in
     * the targets list are vector layers (instead of configuration objects),
     * the defaults from the <defaults>
     * property will apply. The editable layer itself may be a target layer -
     * allowing newly created or edited features to be snapped to existing
     * features from the same layer. If no targets are provided the layer given
     * in the constructor (as <layer>) will become the initial target.
            *
     */
    public void setTargets(SnappingTarget[] targets) {
        JSObject[] jsObjects = new JSObject[targets.length];
        for (int i = 0; i < targets.length; i++) {
            jsObjects[i] = targets[i].getJSObject();
        }

        JObjectArray array = new JObjectArray(jsObjects);
        getJSObject().setProperty("targets", array.getJSObject());
    }

    public void setDefaults(Vector vector) {
        this.getJSObject().setProperty("defaults", vector.getJSObject());
    }

    public boolean getGreedy() {
        return getJSObject().getPropertyAsBoolean("greedy");
    }

    /**
     * Property: layer {<OpenLayers.Layer.Vector>} The current editable layer.
     * Set at construction or after construction with <setLayer>.
     */
    public void setLayer(Vector layer) {
        getJSObject().setProperty("layer", layer.getJSObject());
    }

    public Vector getLayer() {
        return Vector.narrowToLayer(getJSObject().getProperty("layer"));
    }

}