/*
  This file is part of the kcalcore library.

  Copyright (c) 2001-2003 Cornelius Schumacher <schumacher@kde.org>
  Copyright (C) 2003-2004 Reinhold Kainhofer <reinhold@kainhofer.com>

  This library is free software; you can redistribute it and/or
  modify it under the terms of the GNU Library General Public
  License as published by the Free Software Foundation; either
  version 2 of the License, or (at your option) any later version.

  This library 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
  Library General Public License for more details.

  You should have received a copy of the GNU Library General Public License
  along with this library; see the file COPYING.LIB.  If not, write to
  the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  Boston, MA 02110-1301, USA.
*/
/**
  @file
  This file is part of the API for handling calendar data and
  defines the Person class.

  @author Cornelius Schumacher \<schumacher@kde.org\>
  @author Reinhold Kainhofer \<reinhold@kainhofer.com\>
*/

#ifndef KCALCORE_PERSON_H
#define KCALCORE_PERSON_H

#include "kcalcore_export.h"

#include <QtCore/QString>
#include <QtCore/QHash>
#include <QtCore/QMetaType>
#include <QtCore/QSharedPointer>

namespace KCalCore {

/**
  @brief
  Represents a person, by name and email address.

  This class represents a person, with a name and an email address.
  It supports the "FirstName LastName\ <mail@domain\>" format.
*/
class KCALCORE_EXPORT Person
{
  public:
    /**
      A shared pointer to a Person object.
    */
    typedef QSharedPointer<Person> Ptr;

     /**
       List of persons.
     */
    typedef QVector<Ptr> List;

    /**
      Constructs a blank person.
    */
    Person();

    /**
      Constructs a person with name and email address taken from @p fullName.

      @param fullName is the name and email of the person in the form
        "FirstName LastName \<mail@domain\>".
      @return A Person object pointer.
    */
    static Person::Ptr fromFullName( const QString &fullName );

    /**
      Constructs a person with the name @p name and email address @p email.

      @param name is the name of this person.
      @param email is the email address of this person.
    */
    Person( const QString &name, const QString &email );

    /**
       Constructs a person as a copy of another person object.
       @param person is the person to copy.
     */
    Person( const Person &person );

    /**
      Destroys a person.
    */
    virtual ~Person();

    /**
      Returns true if the person name and email address are empty.
    */
    bool isEmpty() const;

    /**
      Returns the full name of this person.
      @return A QString containing the person's full name in the form
        "FirstName LastName \<mail@domain\>".
    */
    QString fullName( ) const;

    /**
      Sets the name of the person to @p name.

      @param name is the name of this person.

      @see name()
    */
    void setName( const QString &name );

    /**
      Returns the person name string.

      @see setName()
    */
    QString name() const;

    /**
      Sets the email address for this person to @p email.

      @param email is the email address for this person.

      @see email()
    */
    void setEmail( const QString &email );

    /**
      Returns the email address for this person.
      @return A QString containing the person's email address.
      @see setEmail()
    */
    QString email() const;

    /**
      Returns true if person's email address is valid.
      Simple email validity check, test that there:
      * is at least one @
      * is at least one character in the local part
      * is at least one dot in the domain part
      * is at least four characters in the domain (assuming that no-one has an address at the tld,
                                                   that the tld is at least 2 chars)

      @param email is the email address to validate
    */
    static bool isValidEmail( const QString &email );

    /**
      Sets the number of references for this person.

      This can be initialized in a loading function (see ExtendedStorage),
      where the number of contact appearances etc. are counted.

      @param count number of references

      @see count()
    */
    void setCount( int count );

    /**
      Returns the number of references or zero if it is not initialized.

      @see setCount()
    */
    int count() const;

    /**
      Compares this with @p person for equality.

      @param person is the person to compare.
    */
    bool operator==( const Person &person ) const;

    /**
      Compares this with @p person for non-equality.

      @param person is the person to compare.
    */
    bool operator!=( const Person &person ) const;

    /**
      Sets this person equal to @p person.

      @param person is the person to copy.
    */
    Person &operator=( const Person &person );

  private:
    //@cond PRIVATE
    class Private;
    Private *const d;
   //@endcond

    friend KCALCORE_EXPORT QDataStream &operator<<( QDataStream &s,
                                                    const KCalCore::Person::Ptr &person );
    friend KCALCORE_EXPORT QDataStream &operator>>( QDataStream &s,
                                                    KCalCore::Person::Ptr &person );
};

/**
  Serializes the @p person object into the @p stream.
*/
KCALCORE_EXPORT QDataStream &operator<<( QDataStream &stream, const KCalCore::Person::Ptr &person );

/**
  Initializes the @p person object from the @p stream.
*/
KCALCORE_EXPORT QDataStream &operator>>( QDataStream &stream, KCalCore::Person::Ptr &person );

}

/**
  Return a hash value for a Person argument.
  @param key is a Person.
*/
KCALCORE_EXPORT uint qHash( const KCalCore::Person &key );

//@cond PRIVATE
Q_DECLARE_TYPEINFO( KCalCore::Person::Ptr, Q_MOVABLE_TYPE );
Q_DECLARE_METATYPE( KCalCore::Person::Ptr )
//@endcond

#endif
