EDIT

/**

* Copyright (C) 2007 EDIT

* European Distributed Institute of Taxonomy

* http://www.e-taxonomy.eu

*

* The contents of this file are subject to the Mozilla Public License Version 1.1

* See LICENSE.TXT at the top of this package for the full license terms.

*/

package eu.etaxonomy.cdm.model.agent;

import java.beans.PropertyChangeEvent;

import java.beans.PropertyChangeListener;

import java.util.ArrayList;

import java.util.List;

import javax.persistence.Entity;

import javax.persistence.FetchType;

import javax.persistence.ManyToMany;

import javax.persistence.OrderColumn;

import javax.persistence.Transient;

import javax.xml.bind.annotation.XmlAccessType;

import javax.xml.bind.annotation.XmlAccessorType;

import javax.xml.bind.annotation.XmlElement;

import javax.xml.bind.annotation.XmlElementWrapper;

import javax.xml.bind.annotation.XmlIDREF;

import javax.xml.bind.annotation.XmlRootElement;

import javax.xml.bind.annotation.XmlSchemaType;

import javax.xml.bind.annotation.XmlType;

import org.apache.log4j.Logger;

import org.hibernate.annotations.Cascade;

import org.hibernate.annotations.CascadeType;

import org.hibernate.annotations.ListIndexBase;

import org.hibernate.envers.Audited;

import org.springframework.beans.factory.annotation.Configurable;

import eu.etaxonomy.cdm.model.EntityCollectionSetterAdapter;

import eu.etaxonomy.cdm.model.EntityCollectionSetterAdapter.SetterAdapterException;

import eu.etaxonomy.cdm.strategy.cache.agent.TeamDefaultCacheStrategy;

import eu.etaxonomy.cdm.strategy.match.Match;

import eu.etaxonomy.cdm.strategy.match.MatchMode;

/**

 * This class represents teams of {@link Person persons}. A team exists either for itself

 * or is built with the list of (distinct) persons who belong to it.

 * In the first case the inherited attribute {@link eu.etaxonomy.cdm.model.common.IdentifiableEntity#getTitleCache() titleCache} is to be used.

 * In the second case at least all abbreviated names

 * (the inherited attributes {@link TeamOrPersonBase#getNomenclaturalTitle() nomenclaturalTitle})

 * or all full names (the strings returned by Person.generateTitle)

 * of the persons must exist. A team is a {@link java.util.List list} of persons.

 * <P>

 * This class corresponds to: <ul>

 * <li> Team according to the TDWG ontology

 * <li> AgentNames (partially) according to the TCS

 * <li> MicroAgent (partially) according to the ABCD schema

 * </ul>

 *

 * @author m.doering

 * @since 08-Nov-2007 13:06:58

 */

@XmlAccessorType(XmlAccessType.FIELD)

@XmlType(name = "Team", propOrder = {

	"protectedNomenclaturalTitleCache",

	"protectedCollectorTitleCache",

    "teamMembers",

    "hasMoreMembers"

})

@XmlRootElement(name = "Team")

@Entity

//@Indexed disabled to reduce clutter in indexes, since this type is not used by any search

//@Indexed(index = "eu.etaxonomy.cdm.model.agent.AgentBase")

@Audited

@Configurable

public class Team extends TeamOrPersonBase<Team> {

    private static final long serialVersionUID = 97640416905934622L;

	public static final Logger logger = Logger.getLogger(Team.class);

    @XmlElement(name = "ProtectedNomenclaturalTitleCache")

	private boolean protectedNomenclaturalTitleCache = false;

    //under construction #4311

    @XmlElement(name = "ProtectedCollectorTitleCache")

	private final boolean protectedCollectorTitleCache = false;

	//An abbreviated name for the team (e. g. in case of nomenclatural authorteams).

    //A non abbreviated name for the team (e. g.

	//in case of some bibliographical references)

    @XmlElementWrapper(name = "TeamMembers", nillable = true)

    @XmlElement(name = "TeamMember")

    @XmlIDREF

    @XmlSchemaType(name = "IDREF")

    @OrderColumn(name="sortIndex")

    @ListIndexBase(value=0)  //not really needed as this is the default

	@ManyToMany(fetch = FetchType.LAZY)

    @Cascade({CascadeType.SAVE_UPDATE,CascadeType.MERGE})

	@Match(MatchMode.MATCH)

	private List<Person> teamMembers;

    @XmlElement(name = "hasMoreMembers")

	private boolean hasMoreMembers;

// ********************************** FACTORY ***************************/

	/**

	 * Creates a new team instance without any concrete {@link Person members}.

	 */

	static public Team NewInstance(){

		return new Team();

	}

	/**

	 * Creates a new team instance with a bibliographic and nomenclatural title

	 * but without any {@link Person members}. The caches are set to protected.

	 */

	static public Team NewTitledInstance(String title, String nomTitle){

		Team result = new Team();

		if (isNotBlank(title)){

		    result.setTitleCache(title, true);

		}

		if (isNotBlank(nomTitle)){

		    result.setNomenclaturalTitle(nomTitle, true);

		}

		return result;

	}

    public static Team NewInstance(Person... members) {

        Team team = new Team();

        for (Person member : members){

            team.addTeamMember(member);

        }

        return team;

    }

//************************ CONSTRUCTOR *******************************/

	/**

	 * Class constructor (including the cache strategy defined in

	 * {@link eu.etaxonomy.cdm.strategy.cache.agent.TeamDefaultCacheStrategy TeamDefaultCacheStrategy}).

	 */

	public Team() {

		addListenersToMembers();

	}

    @Override

    protected void initDefaultCacheStrategy() {

        this.cacheStrategy = TeamDefaultCacheStrategy.NewInstance();

    }

	/**

	 * Adds a property change listener to all team members.

	 */

	private void addListenersToMembers() {

		List<Person> members = getTeamMembers();

		for (Person member : members){

			addListenerForTeamMember(member);

		}

	}

	private void addListenerForTeamMember(Person member) {

		PropertyChangeListener listener = new PropertyChangeListener() {

			@Override

            public void propertyChange(PropertyChangeEvent e) {

// 			   ---- code with no effect below -----

//				if (! isProtectedTitleCache()){

//					titleCache = titleCache;

//				}

//				if (! isProtectedNomenclaturalTitleCache()){

//					nomenclaturalTitle = nomenclaturalTitle;

//				}

			}

		};

		member.addPropertyChangeListener(listener);

	}

	/**

	 * Returns the list of {@link Person members} belonging to <i>this</i> team.

	 * A person may be a member of several distinct teams.

	 */

	public List<Person> getTeamMembers(){

		if(teamMembers == null) {

			this.teamMembers = new ArrayList<>();

		}

		return this.teamMembers;

	}

	public void setTeamMembers(List<Person> teamMembers) throws SetterAdapterException {

	    new EntityCollectionSetterAdapter<Team, Person>(Team.class, Person.class, "teamMembers").setCollection(this, teamMembers);

    }

	/**

	 * Adds a new {@link Person person} to <i>this</i> team at the end of the members' list.

	 *

	 * @param  person  the person who should be added to the other team members

	 * @see     	   #getTeamMembers()

	 * @see 		   Person

	 */

	public void addTeamMember(Person person){

		if (person != null){

			getTeamMembers().add(person);

			firePropertyChange("teamMember", null, person);

			addListenerForTeamMember(person);

		}

	}

	/**

	 * Adds a new {@link Person person} to <i>this</i> team

	 * at the given index place of the members' list. If the person is already

	 * a member of the list he will be moved to the given index place.

	 * The index must be an integer (>=0). If the index is larger than

	 * the present number of members the person will be added at the end of the list.

	 *

	 * @param  person  the person who should be added to the other team members

	 * @param  index   the position at which the person should be placed within the members' list (starting with 0)

	 * @see     	   #getTeamMembers()

	 * @see 		   Person

	 */

	public void addTeamMember(Person person, int index){

		if (person != null){

			int oldIndex = getTeamMembers().indexOf(person);

			if (oldIndex != -1 ){

				getTeamMembers().remove(person);

			}

			if (index >= getTeamMembers().size()){

				index = getTeamMembers().size();

			}

			getTeamMembers().add(index, person);

			addListenerForTeamMember(person);

			firePropertyChange("teamMember", null, person);

		}

	}

	/**

	 * Removes one person from the list of members of <i>this</i> team.

	 *

	 * @param  person  the person who should be deleted from <i>this</i> team

	 * @see            #getTeamMembers()

	 */

	public void removeTeamMember(Person person){

		boolean wasMember = getTeamMembers().remove(person);

		if (wasMember){

			firePropertyChange("teamMember", person, null);

		}

	}

    public boolean replaceTeamMember(Person newObject, Person oldObject){

        return replaceInList(this.teamMembers, newObject, oldObject);

    }

	/**

	 * Generates or returns the {@link TeamOrPersonBase#getnomenclaturalTitle() nomenclatural identification} string for <i>this</i> team.

	 * This method overrides {@link TeamOrPersonBase#getNomenclaturalTitle() getNomenclaturalTitle}.

	 * This string is built with the {@link TeamOrPersonBase#getNomenclaturalTitle() abbreviated names}

	 * of all persons belonging to its (ordered) members' list if the flag

	 * {@link #protectedNomenclaturalTitleCache protectedNomenclaturalTitleCache} is not set.

	 * Otherwise this method returns the present nomenclatural abbreviation.

	 * In case the string is generated the cache strategy used is defined in

	 * {@link eu.etaxonomy.cdm.strategy.cache.agent.TeamDefaultCacheStrategy TeamDefaultCacheStrategy}.

	 * The result might be kept as nomenclatural abbreviation

	 * by using the {@link #setNomenclaturalTitle(String) setNomenclaturalTitle} method.

	 *

	 * @return  a string which identifies <i>this</i> team for nomenclature

	 */

	@Override

	@Transient

	public String getNomenclaturalTitle() {

		if (protectedNomenclaturalTitleCache == PROTECTED){

			return this.nomenclaturalTitle;

		}

		if (nomenclaturalTitle == null){

			this.nomenclaturalTitle = getCacheStrategy().getNomenclaturalTitle(this);

		}else{

			//as long as team members to not inform the team about changes the cache must be created new each time

			nomenclaturalTitle = getCacheStrategy().getNomenclaturalTitle(this);

		}

		return nomenclaturalTitle;

	}

	/**

	 * Assigns a {@link TeamOrPersonBase#nomenclaturalTitle nomenclatural identification} string to <i>this</i> team

	 * and protects it from overwriting.

	 * This method overrides {@link TeamOrPersonBase#setNomenclaturalTitle(String) setNomenclaturalTitle}.

	 *

	 * @see  #getNomenclaturalTitle()

	 * @see  #setNomenclaturalTitle(String, boolean)

	 */

	@Override

	public void setNomenclaturalTitle(String nomenclaturalTitle) {

		this.setNomenclaturalTitle(nomenclaturalTitle, PROTECTED);

	}

	/**

	 * Assigns a {@link TeamOrPersonBase#nomenclaturalTitle nomenclatural identification} string to <i>this</i> team

	 * and a protection flag status to this string.

	 *

	 * @see  #getNomenclaturalTitle()

	 */

	public void setNomenclaturalTitle(String nomenclaturalTitle, boolean protectedNomenclaturalTitleCache) {

		firePropertyChange("nomenclaturalTitle", this.nomenclaturalTitle, nomenclaturalTitle);

		this.nomenclaturalTitle = nomenclaturalTitle == "" ? null: nomenclaturalTitle;

		this.protectedNomenclaturalTitleCache = protectedNomenclaturalTitleCache;

	}

	@Override

	//@Transient //TODO a.kohlbecker remove??

	public String getTitleCache() {

		isGeneratingTitleCache = true;

		String result = "";

		if (isProtectedTitleCache()){

			result = this.titleCache;

		}else{

			result = generateTitle();

			result = replaceEmptyTitleByNomTitle(result);

			result = getTruncatedCache(result);

			this.titleCache = result;

		}

		isGeneratingTitleCache = false;

		return result;

	}

	/**

	 * Protected nomenclatural title cache flag should be set to true, if

	 * the title cache is to be preferred against the atomized data.

	 * This may be the case if no atomized data exists or if atomization

	 * was incomplete for whatever reason.

	 * @return

	 */

	public boolean isProtectedNomenclaturalTitleCache() {

		return protectedNomenclaturalTitleCache;

	}

	public void setProtectedNomenclaturalTitleCache(

			boolean protectedNomenclaturalTitleCache) {

		this.protectedNomenclaturalTitleCache = protectedNomenclaturalTitleCache;

	}

	/**

	 * The hasMoreMembers flag is true if this team has more members than

	 * mentioned in the {@link #teamMembers} list. This is usually the case

	 * when "et al." is used in the team representation. Formatters should add

	 * "et al." or an according post fix to the team string representation

	 *  if this flag is set.

	 * @return

	 */

	public boolean isHasMoreMembers() {

		return hasMoreMembers;

	}

	public void setHasMoreMembers(boolean hasMoreMembers) {

		this.hasMoreMembers = hasMoreMembers;

	}

    @Override

    public boolean updateCaches(){

        boolean result = super.updateCaches();

        if (this.protectedNomenclaturalTitleCache == false){

            String oldNomTitleCache = this.nomenclaturalTitle;

            this.protectedNomenclaturalTitleCache = false;

            String newNomTitleCache = getCacheStrategy().getNomenclaturalTitle(this);

            if ( oldNomTitleCache == null   || ! oldNomTitleCache.equals(newNomTitleCache) ){

                 this.setNomenclaturalTitle(null, false);

                 String newCache = this.getNomenclaturalTitle();

                 if (newCache == null){

                     logger.warn("New nomTitleCache should never be null");

                 }

                 if (oldNomTitleCache == null){

                     logger.info("Old nomTitleCache should never be null");

                 }

                 result = true;

             }

         }

        return result;

     }

//*********************** CLONE ********************************************************/

	/**

	 * Clones <i>this</i> Team. This is a shortcut that enables to create

	 * a new instance that differs only slightly from <i>this</i> Team.

	 * The corresponding person is cloned.

	 *

	 * @see java.lang.Object#clone()

	 */

	@Override

	public Team clone() {

		try{

			Team result = (Team)super.clone();

			result.teamMembers = new ArrayList<>();

			for (Person teamMember: this.teamMembers){

				result.addTeamMember(teamMember);

			}

			//no changes to protectedNomenclaturalTitleCache

			return result;

		} catch (CloneNotSupportedException e){

			logger.warn("Object does not implement cloneable");

			e.printStackTrace();

			return null;

		}

	}

}