# -*- coding: utf-8 -*-

#Verbindet Zope mit pubman. 


from OFS.SimpleItem import SimpleItem
from Products.PageTemplates.PageTemplateFile import PageTemplateFile
import os.path

from Globals import package_home
import httplib2
import urlparse
import urllib
import re
import xml.etree.ElementTree as ET
import json

def zptFile(self, path, orphaned=False):
    """returns a page template file from the product"""
    if orphaned:
        # unusual case
        pt=PageTemplateFile(os.path.join(package_home(globals()), path))
    else:
      
            pt=PageTemplateFile(os.path.join(package_home(globals()), path)).__of__(self)
    return pt

class ZopePubmanConnector(SimpleItem):
    
    
    connectorString="http://pubman.mpiwg-berlin.mpg.de/search/SearchAndExport?"
    connectorString+="cqlQuery=escidoc.any-identifier=%22http://pubman.mpiwg-berlin.mpg.de/cone/persons/resource/303%22&"
    connectorString+="exportFormat=APA&outputFormat=snippet&language=all&sortKeys=escidoc.any-dates&sortOrder=descending"
    
    
    meta_type="ZopePubmanConnector"
   
    manage_options= ({'label':'Main Config','action': 'changeMain'},) + SimpleItem.manage_options
    
    def __init__(self,id,title,pubmanURL):
        self.id=id 
        self.title=title
        self.pubmanURL=pubmanURL #URL einer pubman instance bzw. einer collection, falls nicht die default collection benutzt werden soll
        
    

    def changeMain(self,pubmanURL=None,title=None,REQUEST=None,RESPONSE=None):
        """change main settings"""
        if pubmanURL:
            self.pubmanURL=pubmanURL
            self.title=title  
            
            if RESPONSE is not None:
                RESPONSE.redirect('manage_main')
     
     
        else:
            pt=zptFile(self, 'zpt/ChangeZopePubmanConnector.zpt')
            return pt()
        
        
    def getPublications(self,personID):
        """get all publications der personID"""
        h = httplib2.Http()
        resp, content = h.request(self.connectorString)
        ET.register_namespace("dcterms", "http://purl.org/dc/terms/")

        root = ET.fromstring(content)
        
        citationxpath=".//{http://purl.org/dc/terms/}bibliographicCitation"
        
        citations=root.findall(citationxpath)
        
        ret=[]

        for citation in citations:
            ret.append(citation.text)

        
        
        return ret
    
    def pubmanConnectorURL(self):
        return self.connectorString
        
def manage_addZopePubmanConnectorForm(self):
        """Form for external Links"""
        pt=zptFile(self, 'zpt/AddZopePubmanConnector.zpt')
        return pt()


def manage_addZopePubmanConnector(self,id,title,pubmanURL,RESPONSE=None):
    """Add an external Link"""

    newObj=ZopePubmanConnector(id,title,pubmanURL)

    self._setObject(id,newObj)
    
  
    if RESPONSE is not None:
        RESPONSE.redirect('manage_main')