from ldt import settings

import lucene

import lxml.etree

def Property(func):

    return property(**func()) 

class ProjectIndexer(object):

    def __init__(self, projectList, writer, decoupage_blackList=settings.DECOUPAGE_BLACKLIST):

        self.__projectList = projectList

        self.__decoupage_blacklist = decoupage_blackList

        self.__writer = writer

    @Property

    def decoupage_blacklist(): #@NoSelf

        doc = """get blacklist""" #@UnusedVariable

        def fget(self):

            if self.__decoupage_blacklist is None:

                self.__decoupage_blacklist = ()

            return self.__decoupage_blacklist

        def fset(self, value):

            self.__decoupage_blacklist = value

        def fdel(self):

            del self.__decoupage_blacklist

        return locals()

    def index_all(self):

        for project in self.__projectList:

            self.index_project(project)

    def index_project(self, project):

        # ldt.utils.log.debug("Indexing project : "+str(project.ldt_id))

        ldt = project.ldt

        doc = lxml.etree.fromstring(ldt.encode("utf-8"))

        self.__writer.deleteDocuments(lucene.Term("ldt_id", project.ldt_id))

        res = doc.xpath("/iri/annotations/content")

        project.ldt.encode("utf-8 ")

        for content in res:

            contentId = content.get("id")

            res = content.xpath("ensemble")

            for ensemble in res:

                ensembleId = ensemble.get("id")

                for decoupageNode in ensemble.getchildren():

                    # ldt.utils.log.debug("Indexing project decoupage : "+ repr(decoupageNode.nodeType) + " in " + repr(self.decoupage_blacklist))

                    if decoupageNode.tag != "decoupage"  or decoupageNode.get("id") in self.decoupage_blacklist:

                        continue

                    decoupId = decoupageNode.get("id")

                    res = decoupageNode.xpath("elements/element")

                    for elementNode in res:

                        doc = lucene.Document()

                        elementId = elementNode.get("id")

                        tags = elementNode.get("tags")

                        if tags is not None:                            

                            tags.replace(",", ";")

                        if tags is None or len(tags) == 0:

                            tags = ""

                            restagnode = elementNode.xpath("tag/text()")

                            for tagnode in restagnode:

                                tags = tags + " ; " + tagnode.text()

                        if tags is None or len(tags) == 0:

                            tags = ""

                            restagnode = elementNode.xpath("tags/tag/text()")

                            for tagnode in restagnode:

                                tags = tags + " ; " + tagnode.text()                          

                        title = ""

                        for txtRes in elementNode.xpath("title/text()"): 

                            title = title + txtRes.text()

                        abstract = ""

                        for txtRes in elementNode.xpath("abstract/text()"): 

                            abstract = abstract + txtRes.text() 

                        doc.add(lucene.Field("ldt_id", project.ldt_id, lucene.Field.Store.YES, lucene.Field.Index.NOT_ANALYZED))              

                        doc.add(lucene.Field("iri_id", contentId, lucene.Field.Store.YES, lucene.Field.Index.NOT_ANALYZED))

                        doc.add(lucene.Field("ensemble_id", ensembleId, lucene.Field.Store.YES, lucene.Field.Index.NO))

                        doc.add(lucene.Field("decoupage_id", decoupId, lucene.Field.Store.YES, lucene.Field.Index.NO))

                        doc.add(lucene.Field("element_id", elementId, lucene.Field.Store.YES, lucene.Field.Index.NO))

                        doc.add(lucene.Field("tags", tags, lucene.Field.Store.NO, lucene.Field.Index.ANALYZED))

                        doc.add(lucene.Field("title", title, lucene.Field.Store.NO, lucene.Field.Index.ANALYZED))

                        doc.add(lucene.Field("abstract", abstract, lucene.Field.Store.NO, lucene.Field.Index.ANALYZED))

                        doc.add(lucene.Field("all", " ".join([tags, title, abstract]), lucene.Field.Store.NO, lucene.Field.Index.ANALYZED))

                        self.__writer.addDocument(doc)

        self.__writer.commit()