# ------------------------------------------------------------------------------
from appy.gen.plone25.wrappers import AbstractWrapper

# ------------------------------------------------------------------------------
class UserWrapper(AbstractWrapper):
    def showLogin(self):
        '''When must we show the login field?'''
        if self.o.isTemporary(): return 'edit'
        return 'view'

    def validateLogin(self, login):
        '''Is this p_login valid?'''
        # The login can't be the id of the whole site or "admin"
        if (login == self.o.portal_url.getPortalObject().getId()) or \
           (login == 'admin'):
            return self.translate(u'This username is reserved. Please choose ' \
                                   'a different name.', domain='plone')
        # Check that the login does not already exist and check some
        # Plone-specific rules.
        pr = self.o.portal_registration
        if not pr.isMemberIdAllowed(login):
            return self.translate(u'The login name you selected is already ' \
               'in use or is not valid. Please choose another.', domain='plone')
        return True

    def validatePassword(self, password):
        '''Is this p_password valid?'''
        # Password must be at least 5 chars length
        if len(password) < 5:
            return self.translate(u'Passwords must contain at least 5 letters.',
                                  domain='plone')
        return True

    def showPassword(self):
        '''When must we show the 2 fields for entering a password ?'''
        if self.o.isTemporary(): return 'edit'
        return False

    def getGrantableRoles(self):
        '''Returns the list of roles that the admin can grant to a user.'''
        res = []
        for role in self.o.getProductConfig().grantableRoles:
            res.append( (role, self.translate('role_%s' % role)) )
        return res

    def validate(self, new, errors):
        '''Inter-field validation.'''
        page = self.request.get('page', 'main')
        if page == 'main':
            if hasattr(new, 'password1') and (new.password1 != new.password2):
                msg = self.translate(u'Passwords do not match.', domain='plone')
                errors.password1 = msg
                errors.password2 = msg

    def onEdit(self, created):
        self.title = self.firstName + ' ' + self.name
        pm = self.o.portal_membership
        if created:
            # Create the corresponding Plone user
            pm.addMember(self.login, self.password1, ('Member',), None)
            # Remove our own password copies
            self.password1 = self.password2 = ''
        # Perform updates on the corresponding Plone user
        ploneUser = self.o.portal_membership.getMemberById(self.login)
        ploneUser.setMemberProperties({'fullname': self.title})
        # Change group membership according to self.roles. Indeed, instead of
        # granting roles directly to the user, we will add the user to a
        # Appy-created group having this role.
        userRoles = self.roles
        userGroups = ploneUser.getGroups()
        for role in self.o.getProductConfig().grantableRoles:
            # Retrieve the group corresponding to this role
            groupName = '%s_group' % role
            if role == 'Manager':    groupName = 'Administrators'
            elif role == 'Reviewer': groupName = 'Reviewers'
            group = self.o.portal_groups.getGroupById(groupName)
            # Add or remove the user from this group according to its role(s).
            if role in userRoles:
                # Add the user if not already present in the group
                if groupName not in userGroups:
                    group.addMember(self.login)
            else:
                # Remove the user if it was in the corresponding group
                if groupName in userGroups:
                    group.removeMember(self.login)
        # Call the custom user "onEdit" method if it exists
        # XXX This code does not work.
        if len(self.__class__.__bases__) > 1:
            customUser = self.__class__.__bases__[-1]
            # There is a custom user class
            if customUser.__dict__.has_key('onEdit'):
                customUser.__dict__['onEdit'](self, created)
# ------------------------------------------------------------------------------