/**
 * Copyright (C) 2010-2017 Gordon Fraser, Andrea Arcuri and EvoSuite
 * contributors
 *
 * This file is part of EvoSuite.
 *
 * EvoSuite 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 3.0 of the License, or
 * (at your option) any later version.
 *
 * EvoSuite 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
 * Lesser Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with EvoSuite. If not, see <http://www.gnu.org/licenses/>.
 */
package org.evosuite.testcase.statements.environment;

import org.evosuite.runtime.javaee.JeeData;
import org.evosuite.runtime.util.Inputs;
import org.evosuite.runtime.vnet.EndPointInfo;

import java.io.Serializable;
import java.util.*;

/**
 * Class used to keep track of what environment components (local files, remote URLs, etc)
 * a test case has accessed to
 *
 * Created by arcuri on 12/12/14.
 */
public class AccessedEnvironment implements Serializable {

	private static final long serialVersionUID = 2653568611955383431L;

    /**
     * Paths of accessed local files
     */
	private final Set<String> localFiles;


    /**
     * URL of remote resources
     */
    private final Set<String> remoteURLs;

    /**
     *  TCP/UDP sockets opened by the SUT
     */
    private final Set<EndPointInfo> localListeningPorts;


    /**
     * Remote addr/ports the SUT has contacted (ie initialized communication)
     * via TCP/UDP
     */
    private final Set<EndPointInfo> remoteContactedPorts;


    private JeeData jeeData;


    public AccessedEnvironment(){
        localFiles = new LinkedHashSet<>();
        remoteURLs = new LinkedHashSet<>();
        localListeningPorts = new LinkedHashSet<>();
        remoteContactedPorts = new LinkedHashSet<>();
        jeeData = null;
    }

    public void copyFrom(AccessedEnvironment other){
        clear();
        this.localFiles.addAll(other.localFiles);
        this.remoteURLs.addAll(other.remoteURLs);
        this.localListeningPorts.addAll(other.localListeningPorts);
        this.remoteContactedPorts.addAll(other.remoteContactedPorts);
        this.jeeData = other.jeeData; //it is an immutable object
    }

    public void clear(){
        localFiles.clear();
        remoteURLs.clear();
        localListeningPorts.clear();
        remoteContactedPorts.clear();
        jeeData = null;
    }

    public boolean hasProperty(String property) throws IllegalArgumentException{
        Inputs.checkNull(property);

        return false; //TODO
    }

    public JeeData getJeeData() {
        return jeeData;
    }

    public void setJeeData(JeeData jeeData) {
        this.jeeData = jeeData;
    }

    public void addRemoteContactedPorts(Collection<EndPointInfo> ports){
        remoteContactedPorts.addAll(ports);
    }

    public Set<EndPointInfo> getViewOfRemoteContactedPorts(){
        return Collections.unmodifiableSet(remoteContactedPorts);
    }

    public void addLocalListeningPorts(Collection<EndPointInfo> ports){
        localListeningPorts.addAll(ports);
    }

    public Set<EndPointInfo> getViewOfLocalListeningPorts(){
        return Collections.unmodifiableSet(localListeningPorts);
    }

    public void addLocalFiles(Collection<String> files){
        localFiles.addAll(files);
    }

    public Set<String> getViewOfAccessedFiles(){
        return Collections.unmodifiableSet(localFiles);
    }

    public void addRemoteURLs(Collection<String> urls){
        remoteURLs.addAll(urls);
    }

    public Set<String> getViewOfRemoteURLs(){
        return Collections.unmodifiableSet(remoteURLs);
    }
    
    public boolean isNetworkAccessed() {
    	return !remoteURLs.isEmpty() || !localListeningPorts.isEmpty() || !remoteContactedPorts.isEmpty();
    }
    
    public boolean isFileSystemAccessed() {
    	return !localFiles.isEmpty();
    }
}