#
#  Copyright (c) 2006 Helmut Merz helmutm@cy55.de
#
#  This program is free software; you can redistribute it and/or modify
#  it under the terms of the GNU General Public License as published by
#  the Free Software Foundation; either version 2 of the License, or
#  (at your option) any later version.
#
#  This program 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 General Public License for more details.
#
#  You should have received a copy of the GNU General Public License
#  along with this program; if not, write to the Free Software
#  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
#

"""
Interfaces for organizational stuff like persons, addresses, tasks, ...

$Id$
"""

from zope.interface import Interface, Attribute
from zope import schema
from zope.i18nmessageid import MessageFactory

_ = MessageFactory('zope')


class SimpleList(schema.List): pass

class LinesList(schema.List): pass


class IPerson(Interface):
    """ Resembles a human being with a name (first and last name),
        a birth date, and a set of addresses.
    """

    firstName = schema.TextLine(
                    title=_(u'First name'),
                    description=_(u'The first name'),
                    required=False,)
    lastName = schema.TextLine(
                    title=_(u'Last name'),
                    description=_(u'The last name or surname'),)
    email = schema.TextLine(
                    title=_(u'E-Mail address'),
                    description=_(u'The standard email address of the person'),)
    phoneNumbers = SimpleList(
                    value_type=schema.TextLine(),
                    default=[],
                    title=_(u'Phone numbers'),
                    description=_(u'Note one or more phone numbers here'),
                    required=False,)
    birthDate = schema.Date(
                    title=_(u'Date of birth'),
                    description=_(u'The date of birth - should be a '
                                   'datetime.date object'),
                    required=False,)

    age = schema.Int(
                    title=_(u'Age'),
                    description=_(u'The current age in full years'),
                    readonly=True)
    
    addresses = Attribute('A mapping whose values provide the IAddress '
                          'interface')


class IAddress(Interface):
    """ A postal address of a person or institution.
    """

    street = schema.TextLine(
                    title=_(u'Street, number'),
                    description=_(u'Street and number'),
                    required=False,)
    zipcode = schema.TextLine(
                    title=_(u'ZIP code'),
                    description=_(u'ZIP code, postal code'),
                    required=False,)
    city = schema.TextLine(
                    title=_(u'City'),
                    description=_(u'Name of the city'),
                    required=True,)
    country = schema.TextLine(
                    title=_(u'Country code'),
                    description=_(u'International two-letter country code'),
                    required=False,)
    lines = LinesList(
                    value_type=schema.TextLine(),
                    default=[],
                    title=_(u'Additional lines'),
                    description=_(u'Additional address lines'),
                    required=False,)


class ITask(Interface):
    """ A task has a start date, an optional end date, and is usually
        assigned to one or more persons.
    """

    start = schema.Date(
                    title=_(u'Start date'),
                    description=_(u'The date when the task should start'),
                    required=False,)
    end = schema.Date(
                    title=_(u'End date'),
                    description=_(u'The date until that the task should be '
                                   'finished'),
                    required=False,)