/**
 * Jexer - Java Text User Interface
 *
 * License: LGPLv3 or later
 *
 * This module is licensed under the GNU Lesser General Public License
 * Version 3.  Please see the file "COPYING" in this directory for more
 * information about the GNU Lesser General Public License Version 3.
 *
 *     Copyright (C) 2015  Kevin Lamonte
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public License
 * as published by the Free Software Foundation; either version 3 of
 * the License, or (at your option) any later version.
 *
 * This program 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 Lesser General Public
 * License along with this program; if not, see
 * http://www.gnu.org/licenses/, or write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA
 *
 * @author Kevin Lamonte [kevin.lamonte@gmail.com]
 * @version 1
 */
package jexer.event;

import jexer.TCommand;

/**
 * This class encapsulates a user command event.  User commands can be
 * generated by menu actions, keyboard accelerators, and other UI elements.
 * Commands can operate on both the application and individual widgets.
 */
public final class TCommandEvent extends TInputEvent {

    /**
     * Command dispatched.
     */
    private TCommand cmd;

    /**
     * Get TCommand.
     *
     * @return the TCommand
     */
    public TCommand getCmd() {
        return cmd;
    }

    /**
     * Public contructor.
     *
     * @param cmd the TCommand dispatched
     */
    public TCommandEvent(final TCommand cmd) {
        this.cmd = cmd;
    }

    /**
     * Comparison check.  All fields must match to return true.
     *
     * @param rhs another TCommandEvent or TCommand instance
     * @return true if all fields are equal
     */
    @Override
    public boolean equals(final Object rhs) {
        if (!(rhs instanceof TCommandEvent)
            && !(rhs instanceof TCommand)
        ) {
            return false;
        }

        if (rhs instanceof TCommandEvent) {
            TCommandEvent that = (TCommandEvent) rhs;
            return (cmd.equals(that.cmd)
                && (getTime().equals(that.getTime())));
        }

        TCommand that = (TCommand) rhs;
        return (cmd.equals(that));
    }

    /**
     * Hashcode uses all fields in equals().
     *
     * @return the hash
     */
    @Override
    public int hashCode() {
        int A = 13;
        int B = 23;
        int hash = A;
        hash = (B * hash) + getTime().hashCode();
        hash = (B * hash) + cmd.hashCode();
        return hash;
    }

    /**
     * Make human-readable description of this TCommandEvent.
     *
     * @return displayable String
     */
    @Override
    public String toString() {
        return String.format("CommandEvent: %s", cmd.toString());
    }
}