/*******************************************************************************
 * Copyright (c) 2012 Association for Decentralized Information Management
 * in Industry THTH ry.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     VTT Technical Research Centre of Finland - initial API and implementation
 *******************************************************************************/
package org.simantics.maps.wms;

import java.awt.geom.Rectangle2D;
import java.net.MalformedURLException;

/**
 * @author Tuukka Lehtonen
 */
public class WMSGetMapQuery {

    String      srs = "EPSG:4326";

    int         width;

    int         height;

    Rectangle2D bbox;

    String[]    styles;

    String[]    layers;

    String      format;

    public WMSGetMapQuery(int width, int height, Rectangle2D bbox, String format, String... layers) throws MalformedURLException {
        super();
        this.width = width;
        this.height = height;
        this.bbox = bbox;
        this.format = format;
        this.layers = layers;
    }

    public void setSpatialReferenceSystem(String srs) {
        this.srs = srs;
    }

    public void setStyles(String... styles) {
        this.styles = styles;
    }

    public void setLayers(String... layers) {
        this.layers = layers;
    }

    public String toString() {
        if (layers.length == 0)
            throw new IllegalStateException("0 layers defined");

        StringBuilder sb = new StringBuilder(200);

        // request=GetMap&layers=global_mosaic&srs=EPSG:4326&width=512&height=512
        // &bbox=-180,-38,-52,90
        // &format=image/jpeg&version=1.1.1&styles=visual

        sb.append("request=GetMap");
        sb.append("&service=WMS");
        sb.append("&layers=");
        sb.append(layers[0]);
        for (int i = 1; i < layers.length; ++i) {
            sb.append(',');
            sb.append(layers[i]);
        }
        sb.append("&srs=");
        sb.append(srs);
        sb.append("&width=");
        sb.append(width);
        sb.append("&height=");
        sb.append(height);
        sb.append("&bbox=");
        sb.append(bbox.getMinX());
        sb.append(',');
        sb.append(bbox.getMinY());
        sb.append(',');
        sb.append(bbox.getMaxX());
        sb.append(',');
        sb.append(bbox.getMaxY());
        sb.append("&format=");
        sb.append(format);
        sb.append("&version=1.1.1");
        sb.append("&styles=");
        if (styles != null && styles.length > 0) {
            sb.append(styles[0]);
            for (int i = 1; i < layers.length; ++i) {
                sb.append(',');
                sb.append(layers[i]);
            }
        }

        return sb.toString();
    }

}