/*
 Licensed to the Apache Software Foundation (ASF) under one
 or more contributor license agreements.  See the NOTICE file
 distributed with this work for additional information
 regarding copyright ownership.  The ASF licenses this file
 to you 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.apache.plc4x.test;

import org.apache.commons.lang3.SystemUtils;
import org.apache.maven.artifact.versioning.DefaultArtifactVersion;
import org.junit.jupiter.api.extension.ConditionEvaluationResult;
import org.junit.jupiter.api.extension.ExecutionCondition;
import org.junit.jupiter.api.extension.ExtensionContext;
import org.pcap4j.core.Pcaps;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class RequirePcapNgCondition implements ExecutionCondition {

    private static final Logger logger = LoggerFactory.getLogger(RequirePcapCondition.class);

    @Override
    public ConditionEvaluationResult evaluateExecutionCondition(ExtensionContext extensionContext) {
        // Mac:     libpcap version 1.8.1 -- Apple version 79.200.4
        // Linux:
        // Windows: WinPcap version 4.1.3 (packet.dll version 4.1.0.2980), based on libpcap version 1.0 branch 1_0_rel0b (20091008)
        try {
            String libVersion = Pcaps.libVersion();
            Pattern pattern = Pattern.compile("^libpcap version (?<version>\\d+\\.\\d+(\\.\\d+)?).*$");
            Matcher matcher = pattern.matcher(libVersion);
            if (matcher.matches()) {
                String versionString = matcher.group("version");
                DefaultArtifactVersion curVersion = new DefaultArtifactVersion(versionString);
                DefaultArtifactVersion minVersion = new DefaultArtifactVersion("1.1.0");
                if (curVersion.compareTo(minVersion) >= 0) {
                    return ConditionEvaluationResult.enabled("Found libpcap version " + versionString);
                } else if (SystemUtils.IS_OS_WINDOWS) {
                    return ConditionEvaluationResult.disabled("Test disabled due to too old WinPcap version. Please install at least version 1.1.0 to support all features. Please install from here: https://sourceforge.net/projects/winpcap413-176/ as this version supports all needed freatures.");
                } else {
                    return ConditionEvaluationResult.disabled("Test disabled due to too old libpcap version. Please install at least version 1.1.0 to support all features.");
                }
            }
        } catch(Exception e) {
            logger.info("Error detecting libpcap version.", e);
        }
        if(SystemUtils.IS_OS_WINDOWS) {
            return ConditionEvaluationResult.disabled("Test disabled due to missing or invalid WinPcap version. Please install from here: https://sourceforge.net/projects/winpcap413-176/ as this version supports all needed freatures.");
        } else {
            return ConditionEvaluationResult.disabled("Test disabled due to missing or invalid libpcap version. Please install at least version 1.1.0 to support all features.");
        }
    }

}
