import sqlalchemy as sa
import datetime #<- will be used to set default dates on models

from sqlalchemy import or_
from ..models.blog_record import BlogRecord, Tags



class BlogRecordService(object):

    @classmethod
    def by_criteria(cls, request, criteria):
        search = "%{}%".format(criteria)
        query = request.dbsession.query(BlogRecord)
        query = query.filter(or_(BlogRecord.title.like(search), BlogRecord.body.like(search)))
        if request.authenticated_userid == None:
            # if user is anonym, display only published posts
            query = query.filter(BlogRecord.status == 'publié')
        return query.all()

    @classmethod
    def by_id(cls, request, _id):
        query = request.dbsession.query(BlogRecord)
        return query.get(_id)

    @classmethod
    def by_tag(cls, request, tag):
        query = request.dbsession.query(BlogRecord)
        query = query.filter(BlogRecord.tag == tag)
        if request.authenticated_userid == None:
            # if user is anonym, display only published posts
            query = query.filter(BlogRecord.status == 'publié')
        return query.order_by(sa.desc(BlogRecord.created)).all()

    @classmethod
    def get_last_created(cls, request):
        # gest the 10 last created posts
        query = request.dbsession.query(BlogRecord)
        if request.authenticated_userid == None:
            # if user is anonym, display only published posts
            query = query.filter(BlogRecord.status == 'publié')
        query = query.order_by(sa.desc(BlogRecord.created)).limit(15).all()
        return query

    @classmethod
    def delete(cls, request, id):
        request.dbsession.query(BlogRecord).filter(BlogRecord.id == id).delete(synchronize_session=False)
        return 

    @classmethod
    def get_tags(cls, request):
        query = request.dbsession.query(Tags)
        query = query.order_by(Tags.tag).all()
        return query

    @classmethod
    def get_tags_byId(cls, request, id):
        # gest the last 5 items modified
        query = request.dbsession.query(Tags).filter(Tags.id == id).first()
        return query

    @classmethod
    def tag_delete(cls, request, id):
        request.dbsession.query(Tags).filter(Tags.id == id).delete(synchronize_session=False)
        return