/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.apache.jena.cmd;

import java.util.ArrayList;
import java.util.List;

public class Arg
{
    String name;
    String value;                                      // Last seen
    List<String> values = new ArrayList<>();     // All seen

    Arg() { name = null; value = null; }

    public Arg(String _name) { this(); setName(_name); }

    Arg(String _name, String _value) { this(); setName(_name); setValue(_value); }

    void setName(String n) { name = n; }

    public void setValue(String v) { value = v; }
    public void addValue(String v) { values.add(v); }

    public String getName() { return name; }
    public String getValue() { return value; }
    public List<String> getValues() { return values; }

    public boolean hasValue() { return value != null; }

    public boolean matches(ArgDecl decl)
    {
        return decl.getNames().contains(name);
    }

    @Override
    public String toString() {
        String base = ((name.length() == 1 )?"-":"--") + name;
        if ( getValues().size() == 0 )
            return base;

        String str = "";
        String sep = "";

        for ( String v : getValues() ) {
            str = str + sep + base + "=" + v;
            sep = " ";
        }
        return str;
    }
}
