/*
 * Zed Attack Proxy (ZAP) and its related class files.
 *
 * ZAP is an HTTP/HTTPS proxy for assessing web application security.
 *
 * Copyright 2013 The ZAP Development Team
 *
 * Licensed 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.zaproxy.zap.extension.diff;

import java.util.List;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.parosproxy.paros.model.HistoryReference;
import org.zaproxy.zap.view.popup.PopupMenuItemHistoryReferenceContainer;

@SuppressWarnings("serial")
public class PopupMenuDiff extends PopupMenuItemHistoryReferenceContainer {

    private static final Logger LOGGER = LogManager.getLogger(PopupMenuDiff.class);

    private static final long serialVersionUID = 1L;
    private ExtensionDiff ext = null;
    private boolean request = false;

    /**
     * @param label
     */
    public PopupMenuDiff(String label, ExtensionDiff ext, boolean request) {
        super(label, true);
        this.setName("DiffPopup");
        this.ext = ext;
        this.request = request;
    }

    public boolean isEnableForInvoker(Invoker invoker) {
        return true;
    }

    @Override
    protected boolean isButtonEnabledForSelectedHistoryReferences(List<HistoryReference> hrefs) {
        if (hrefs.size() != 2) {
            return false;
        }

        for (HistoryReference hRef : hrefs) {
            if (hRef == null) {
                return false;
            }
        }

        return true;
    }

    @Override
    protected void performHistoryReferenceActions(List<HistoryReference> hrefs) {
        if (hrefs.size() == 2) {
            try {
                this.ext.showDiffDialog(
                        hrefs.get(0).getHttpMessage(), hrefs.get(1).getHttpMessage(), this.request);
            } catch (Exception e) {
                LOGGER.error("Failed to show diff dialogue: {}", e.getMessage(), e);
            }
        }
    }

    @Override
    public void performAction(HistoryReference href) {
        // Ignore
    }

    @Override
    public boolean isSafe() {
        return true;
    }
}
