'''

Created on 10 Aout. 2012

@author: Gerard

'''

import logging

from dataparser.DocumentaryFileAnnotationAttributes import DocumentaryFileAnnotationCreateAttributes

from dataparser.DocumentaryFileAnnotationDeleteAttributes import DocumentaryFileAnnotationDeleteAttributes

from django.contrib.auth.models import User

from document.models import Documentaryfile

from document.models import AnnotationDocumentaryFile

logger = logging.getLogger('document')

class DocumentaryFileAnnotation(object):

    def __init__(self, request):

        self.request = request

    def create(self):

        attr = DocumentaryFileAnnotationCreateAttributes(self.request)

        if attr.get_documentary_file_id() == '':

            json = '{"error": "No documentary_file_id attribute in the http post request"}'

            logger.info(json)

            return json

        if attr.get_user()=='':

            json = '{"error": "No user attribute in the http post request"}'

            logger.info(json)

            return json

        try:

            user = User.objects.get(username=attr.get_user())

        except User.DoesNotExist:

            json = '{"error": "Invalid User Id"}'

            logger.info(json)

            return json

        try:

            docFile = Documentaryfile.objects.get(id=attr.get_documentary_file_id(), user_id=user.id)

        except Documentaryfile.DoesNotExist:

            json = '{"error": "Invalid DocumentaryFile Id"}'

            logger.info(json)

            return json

        try:

            annotation = AnnotationDocumentaryFile.objects.get(documentaryFile=docFile)

            annotation.description = attr.get_annotation()

            annotation.save(force_update=True)

        except AnnotationDocumentaryFile.DoesNotExist:

            annotation = AnnotationDocumentaryFile(description=attr.get_annotation(), user=user, documentaryFile=docFile)

            annotation.save()

        json = '{"annotation_documentary_file_created":' + str(annotation.id) + '}'

        logger.info(json)

        return json

    def delete(self):

        attr = DocumentaryFileAnnotationDeleteAttributes(self.request)

        if attr.get_documentary_file_id() == '':

            json = '{"error": "No documentary_file_id attribute in the http post request"}'

            logger.info(json)

            return json

        if attr.get_user() == '':

            json = '{"error": "No user attribute in the http post request"}'

            logger.info(json)

            return json

        if attr.get_annotation_id() == '':

            json = '{"error": "No annotation_id attribute in the http post request"}'

            logger.info(json)

            return json

        try:

            user = User.objects.get(username=attr.get_user())

        except User.DoesNotExist:

            json = '{"error": "Invalid User Id"}'

            logger.info(json)

            return json

        try:

            docFile = Documentaryfile.objects.get(id=attr.get_documentary_file_id(), user_id=user.id)

        except Documentaryfile.DoesNotExist:

            json = '{"error": "Invalid documentary file id"}'

            logger.info(json)

            return json

        anotationDocumentaryFileId= attr.get_annotation_id()

        try:

            anotationDocumentaryFile = AnnotationDocumentaryFile.objects.get(pk=anotationDocumentaryFileId)

            if attr.get_user() == anotationDocumentaryFile.user.username:

                logger.info('get_documentary_file_id')

                logger.info(str(attr.get_documentary_file_id()))

                logger.info('anotationDocumentaryFile.documentaryFile.id')

                logger.info(str(anotationDocumentaryFile.documentaryFile.id))

                if str(attr.get_documentary_file_id()) == str(anotationDocumentaryFile.documentaryFile.id):

                    anotationDocumentaryFile.delete()

                    json= '{"annotation_documentary_file_deleted" :'  + str(anotationDocumentaryFileId) + '}'

                    logger.info(json)

                else:

                    json= '{"Error": "DocumentaryFile does not matched"}'

                    logger.info(json) 

                    return json

            else:

                json= '{"Error": "User does not matched"}'

                logger.info(json)

                return json

        except AnnotationDocumentaryFile.DoesNotExist:

            json= '{"error": "AnnotationDocumentaryFile Id not valid"}'

            logger.info(json)

            return json

        return json