/*
 * Copyright (c) 2014, grossmann
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * * Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * * Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * * Neither the name of the jo-widgets.org nor the
 *   names of its contributors may be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL jo-widgets.org BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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 */

package org.jowidgets.unit.tools.units;

import org.jowidgets.unit.api.IUnit;
import org.jowidgets.unit.api.IUnitBuilder;
import org.jowidgets.unit.api.IUnitSet;
import org.jowidgets.unit.api.IUnitSetBuilder;
import org.jowidgets.unit.api.Unit;
import org.jowidgets.unit.api.UnitSet;

public final class HertzUnitSet {

    public static final IUnit H = h();
    public static final IUnit KH = kh();
    public static final IUnit MH = mh();
    public static final IUnit GH = gh();

    private static final IUnitSet INSTANCE = createInstance();

    private HertzUnitSet() {}

    private static IUnit h() {
        final IUnitBuilder builder = Unit.builder();
        builder.abbreviation(Messages.getMessage("HertzUnitSet.h_abbreviation"));
        builder.name(Messages.getMessage("HertzUnitSet.h_name"));
        return builder.build();
    }

    private static IUnit kh() {
        final IUnitBuilder builder = Unit.builder();
        builder.abbreviation(Messages.getMessage("HertzUnitSet.kh_abbreviation"));
        builder.name(Messages.getMessage("HertzUnitSet.kh_name"));
        builder.conversionFactor(1000);
        return builder.build();
    }

    private static IUnit mh() {
        final IUnitBuilder builder = Unit.builder();
        builder.abbreviation(Messages.getMessage("HertzUnitSet.mh_abbreviation"));
        builder.name(Messages.getMessage("HertzUnitSet.mh_name"));
        builder.conversionFactor(1000 * 1000);
        return builder.build();
    }

    private static IUnit gh() {
        final IUnitBuilder builder = Unit.builder();
        builder.abbreviation(Messages.getMessage("HertzUnitSet.gh_abbreviation"));
        builder.name(Messages.getMessage("HertzUnitSet.gh_name"));
        builder.conversionFactor(1000 * 1000 * 1000);
        return builder.build();
    }

    private static IUnitSet createInstance() {
        final IUnitSetBuilder builder = UnitSet.builder();
        builder.add(H);
        builder.add(KH);
        builder.add(MH);
        builder.add(GH);
        return builder.build();
    }

    public static IUnitSet instance() {
        return INSTANCE;
    }

}