package de.intevation.flys.client.client.ui.range;

import com.google.gwt.core.client.GWT;

import com.smartgwt.client.data.DataSource;
import com.smartgwt.client.data.DataSourceField;
import com.smartgwt.client.types.DSDataFormat;
import com.smartgwt.client.types.FieldType;


public class DistanceInfoDataSource extends DataSource {

    public static final String XPATH_DISTANCE_DEFAULT = "/distances/distance";


    public DistanceInfoDataSource(String url, String river, String filter) {
        setDataFormat(DSDataFormat.XML);
        setRecordXPath(XPATH_DISTANCE_DEFAULT);

        DataSourceField desc = new DataSourceField(
            "description", FieldType.TEXT, "description");

        DataSourceField from = new DataSourceField(
            "from", FieldType.TEXT, "from");

        DataSourceField to = new DataSourceField(
            "to", FieldType.TEXT, "to");

        DataSourceField side = new DataSourceField(
            "riverside", FieldType.TEXT, "riverside");

        DataSourceField top = new DataSourceField(
            "top", FieldType.TEXT, "top");

        DataSourceField bottom = new DataSourceField(
            "bottom", FieldType.TEXT, "bottom");

        setFields(desc, from, to, side, top, bottom);
        setDataURL(getServiceURL(url, river, filter));
    }


    protected String getServiceURL(String server, String river, String filter) {
        String url = GWT.getModuleBaseURL();
        url += "distanceinfoxml";
        url += "?server=" + server;
        url += "&river=" + river;
        url += "&filter=" + filter;

        return url;
    }
}
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