/*
 * Copyright (c) 1997, 2023 Oracle and/or its affiliates. All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0, which is available at
 * http://www.eclipse.org/legal/epl-2.0.
 *
 * This Source Code may also be made available under the following Secondary
 * Licenses when the conditions for such availability set forth in the
 * Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
 * version 2 with the GNU Classpath Exception, which is available at
 * https://www.gnu.org/software/classpath/license.html.
 *
 * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
 */

package jakarta.mail.search;

import jakarta.mail.Address;
import jakarta.mail.Message;

/**
 * This class implements string comparisons for the Recipient Address
 * headers. <p>
 *
 * Note that this class differs from the <code>RecipientTerm</code> class
 * in that this class does comparisons on address strings rather than Address
 * objects. The string comparisons are case-insensitive.
 *
 * @since JavaMail 1.1
 */

public final class RecipientStringTerm extends AddressStringTerm {

    /**
     * The recipient type.
     *
     * @serial
     */
    private Message.RecipientType type;

    private static final long serialVersionUID = -8293562089611618849L;

    /**
     * Constructor.
     *
     * @param type    the recipient type
     * @param pattern the address pattern to be compared.
     */
    public RecipientStringTerm(Message.RecipientType type, String pattern) {
        super(pattern);
        this.type = type;
    }

    /**
     * Return the type of recipient to match with.
     *
     * @return the recipient type
     */
    public Message.RecipientType getRecipientType() {
        return type;
    }

    /**
     * Check whether the address specified in the constructor is
     * a substring of the recipient address of this Message.
     *
     * @param msg The comparison is applied to this Message's recipient
     *            address.
     * @return true if the match succeeds, otherwise false.
     */
    @Override
    public boolean match(Message msg) {
        Address[] recipients;

        try {
            recipients = msg.getRecipients(type);
        } catch (Exception e) {
            return false;
        }

        if (recipients == null)
            return false;

        for (int i = 0; i < recipients.length; i++)
            if (super.match(recipients[i]))
                return true;
        return false;
    }

    /**
     * Equality comparison.
     */
    @Override
    public boolean equals(Object obj) {
        if (!(obj instanceof RecipientStringTerm))
            return false;
        RecipientStringTerm rst = (RecipientStringTerm) obj;
        return rst.type.equals(this.type) && super.equals(obj);
    }

    /**
     * Compute a hashCode for this object.
     */
    @Override
    public int hashCode() {
        return type.hashCode() + super.hashCode();
    }
}
