from Products.Archetypes.public import BaseFolderSchema, Schema
from Products.Archetypes.public import StringField, LinesField, ComputedField, ComputedWidget
from Products.Archetypes.public import LinesWidget, TextAreaWidget, IdWidget, StringWidget
from Products.Archetypes.public import BaseFolder, registerType
from Products.CMFCore import CMFCorePermissions


import Permissions


schema = BaseFolderSchema +  Schema((
     StringField('id',
                 required=0, ## Still actually required, but
                             ## the widget will supply the missing value
                             ## on non-submits
                 mode="rw",
                 accessor="getId",
                 mutator="setId",
                 default=None,
                 widget=IdWidget(label="Short Name",
                                 label_msgid="label_short_name",
                                 description="Should not contain spaces, underscores or mixed case. "\
                                             "Short Name is part of the item's web address.",
                                 description_msgid="help_shortname",
                                 visible={'view' : 'visible'},
                                 i18n_domain="plone"),
                 ),
    StringField('title',
                required=1,
                searchable=1,
                default='',
                accessor='Title',
                widget=StringWidget(label_msgid="label_title",
                                    description_msgid="help_title",
                                    i18n_domain="plone"),
                ),    
    StringField('description',
                isMetadata=1,
                accessor='Description',
                widget=TextAreaWidget(label='Description', 
                                      label_msgid="label_blogfolder_description",
                                      description_msgid="help_blogfolder_description",
                                      i18n_domain="SimpleBlog",
                                      description='Give a description for this SimpleBlog folder.'),),
    ComputedField('existingCats', 
                  expression='here.getInheritedCategories()',
                  widget=ComputedWidget(label='Existing categories.', 
                                  label_msgid="label_blogfolder_existing_cats",
                                  i18n_domain="SimpleBlog",)),
    LinesField('categories', 
               widget=LinesWidget(label='Additional categories', 
                                  label_msgid="label_additional_categories",
                                  description_msgid="help_additional_categories",
                                  i18n_domain="SimpleBlog",
                                  description='Supply a list of possible additional categories that will be available to BlogEntries inside this folder or in sub folders.'),
               )
        ))


class BlogFolder(BaseFolder):
    """
    A folder object to store BlogEntries in
    """
    allowed_content_types=('BlogEntry', 'BlogFolder', 'Link', 'Image', 'File', 'Portlet')
    filter_content_types=1

    global_allow=0
    
    schema=schema
    
    content_icon='blogfolder_icon.gif'

    actions = ({
       'id': 'view',
        'name': 'View',
        'action': 'string:${object_url}/blogfolder_view',
        'permissions': (CMFCorePermissions.View,)
        },
        {'id': 'references',
          'name': 'References',
          'action': 'string:${object_url}/reference_edit',
          'permissions': (CMFCorePermissions.ModifyPortalContent,),
          'visible':0},
        {'id': 'metadata',
          'name': 'Properties',
          'action': 'string:${object_url}/base_metadata',
          'permissions': (CMFCorePermissions.ModifyPortalContent,),
          'visible':0})    
        
    def getInheritedCategories(self):
            # traverse upwards in the tree to collect all the available categories
            # stop collecting when a SimpleBlog object is reached
            
            cats=[]
            parent=self.aq_parent
            portal=self.portal_url.getPortalObject()
            categories='<ul>'
            while parent!=portal:
               if parent.portal_type=='Blog' or parent.portal_type=='BlogFolder':
                   # add cats
                   pcats=parent.getCategories()
                   for c in pcats:
                       if c not in cats:
                           categories=categories + '<li>' + c + '</li>'
                           cats.append(c)
                   if parent.portal_type=='Blog':
                       break
               parent=parent.aq_parent
            categories = categories + '</li>'
            if len(cats)==0:
                return '-'
            else:
                return categories


    def synContentValues(self):
        # get brains for items that are published within the context of this blog.
        entries = self.simpleblog_tool.searchForEntries(self, fromHere=1, maxResults=0)
        
        # convert to objects
        objs = [e.getObject() for e in entries]
        return objs        
                
registerType(BlogFolder)