package uk.ac.ebi.arrayexpress.utils;

/*
 * Copyright 2009-2014 European Molecular Biology Laboratory
 *
 * 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.
 *
 */

import org.apache.commons.lang.StringEscapeUtils;

import java.util.LinkedHashSet;
import java.util.Set;

public class HTMLOptions
{
    private class Option
    {
        private String value;
        private String label;

        public Option( String value, String label )
        {
            this.value = value;
            this.label = label;
        }

        public String getHtml()
        {
            return "<option value=\"" + StringEscapeUtils.escapeHtml(value) + "\">" + label + "</option>";
        }

        @Override
        public boolean equals( Object other )
        {
            return (other instanceof Option) && ((Option)other).getHtml().equals(getHtml());
        }
    }

    private Set<Option> options;

    public HTMLOptions()
    {
        this.options = new LinkedHashSet<Option>();
    }

    public void clearOptions()
    {
        this.options.clear();
    }

    public void addOption( String value, String label )
    {
        this.options.add(new Option(value, label));
    }

    public String getHtml()
    {
        StringBuilder sb = new StringBuilder();

        for (Option o : options) {
            sb.append(o.getHtml());
        }

        return sb.toString();
    }
}
