# -*- coding: utf-8
# Copyright 2006 by Vahur Rebas

from AccessControl import ClassSecurityInfo
from Products.Archetypes.config import REFERENCE_CATALOG
from Products.Archetypes.Registry import registerField, registerWidget 
from Products.Archetypes.Field import StringField, LinesField, ReferenceField, ObjectField,FileField,ComputedField
from Products.Archetypes.Widget import TextAreaWidget, StringWidget, LinesWidget, SelectionWidget, TypesWidget, MultiSelectionWidget, VisualWidget, FileWidget, InAndOutWidget
from Products.Archetypes.ReferenceEngine import Reference
from Products.Archetypes import config
from string import letters, punctuation
from Products.CMFCore.utils import getToolByName
from ZODB.PersistentMapping import PersistentMapping
from Products.Archetypes.utils import shasattr
from Acquisition import aq_base
from types import ListType, TupleType, StringType, UnicodeType, InstanceType
import re
STRING_TYPES = [StringType, UnicodeType]

class TagsWidget(StringWidget):
    _properties = StringWidget._properties.copy()
    _properties.update({
        'macro' : 'widget_tags',
    })

registerWidget(TagsWidget,
    title='Tags Widget',
    description='Tags Widget',
    used_for=('Products.Eportfoolio.TagsField.TagsField',)
)

class TagsField(LinesField):
    """ A field that stores tags """
    __implements__ = LinesField.__implements__
    _properties = LinesField._properties.copy()
    _properties.update({        'widget' : TagsWidget,    })
    security = ClassSecurityInfo()
    
    def set(self, instance, value, **kwargs):
        tags = []
        tags_dirty = []
        if isinstance(value,str):
            value = value.lower()
            tags_dirty = value.split(',')
            value = tags_dirty
            tags = []
        if isinstance(value, tuple) or isinstance(value, list):
            tags_dirty = value
            [ tags.append(t.strip().lower()) for t in tags_dirty if t.strip().lower() not in tags ]
            value = ','.join(tags)
        if isinstance(value,str):
            value = value.replace(',','\n')
        LinesField.set(self, instance, value, **kwargs)
        
    def getRaw(self, instance, **kwargs):
        value = self.get(instance, **kwargs)
        return ', '.join(value)
        
    def get(self, instance, **kwargs):     
        return LinesField.get(self, instance, **kwargs)
        
registerField(TagsField,
    title='Tags Field',
    description=('Tags Field'),
)