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/*
 * This file is part of WebLookAndFeel library.
 *
 * WebLookAndFeel library is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * WebLookAndFeel library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with WebLookAndFeel library.  If not, see .
 */

package com.alee.managers.language.updaters;

import com.alee.managers.language.data.Value;

import javax.swing.*;
import java.lang.reflect.ParameterizedType;
import java.lang.reflect.Type;
import java.lang.reflect.TypeVariable;

/**
 * This class provides an additional set of methods to simplify language updaters usage.
 * Most of default predefined language updaters extend this class.
 *
 * @author Mikle Garin
 */

public abstract class DefaultLanguageUpdater implements LanguageUpdater
{
    /**
     * Predefined component states.
     */
    public static final String INPUT_PROMPT = "inputPrompt";
    public static final String DROP_TEXT = "dropText";

    @Override
    public Class getComponentClass ()
    {
        try
        {
            final Type type = ( ( ParameterizedType ) getClass ().getGenericSuperclass () ).getActualTypeArguments ()[ 0 ];
            if ( type instanceof Class )
            {
                return ( Class ) type;
            }
            else
            {
                return ( Class ) ( ( TypeVariable ) type ).getBounds ()[ 0 ];
            }
        }
        catch ( final Throwable e )
        {
            return null;
        }
    }

    /**
     * Returns default text taken from value and formatted using specified data.
     *
     * @param value language value
     * @param data  formatting data
     * @return formatted default text
     */
    protected String getDefaultText ( final Value value, final Object... data )
    {
        return getDefaultText ( null, value, data );
    }

    /**
     * Returns state text taken from value and formatted using specified data.
     *
     * @param state component state
     * @param value language value
     * @param data  formatting data
     * @return formatted state text
     */
    protected String getDefaultText ( final String state, final Value value, final Object... data )
    {
        return getDefaultText ( state, false, value, data );
    }

    /**
     * Returns state text taken from value and formatted using specified data.
     *
     * @param state        component state
     * @param defaultState whether default text should be taken if no state text found or not
     * @param value        language value
     * @param data         formatting data
     * @return formatted state text
     */
    protected String getDefaultText ( final String state, final boolean defaultState, final Value value, final Object... data )
    {
        final String text = value.getText ( state, defaultState );
        return data != null && text != null ? formatDefaultText ( text, data ) : text;
    }

    /**
     * Returns text formatted using specified data.
     *
     * @param text text to format
     * @param data formatting data
     * @return formatted  text
     */
    protected String formatDefaultText ( final String text, final Object[] data )
    {
        return String.format ( text, data );
    }
}