import datetime

from django.core.exceptions import ObjectDoesNotExist
from django.template.defaultfilters import striptags
from django.core.mail import EmailMessage
from django.conf import settings

from links.models import Link
# https://github.com/mgan59/python-pinboard/
import pinboard


def safestr(s):
    """
    Safely corerce *anything* to a string. If the object can't be str'd, an
    empty string will be returned.

    You can (and I do) use this for really crappy unicode handling, but it's
    a bit like killing a mosquito with a bazooka.
    """
    if s is None:
        return ""
    if isinstance(s, unicode):
        return s.encode('ascii', 'xmlcharrefreplace')
    else:
        try:
            return str(s)
        except:
            return ""


def sync_pinboard_links():
    """
    sync bookmarks from my pinboard account
    dependancies: python-pinboard https://github.com/mgan59/python-pinboard/
    """
    p = pinboard.open(settings.PIN_USER, settings.PIN_PASS)
    dupe = False
    links = p.posts(count=30)
    for link in links:
        try:
            #check to see if link exists
            row = Link.objects.get(link_id=safestr(link['hash']))
        except ObjectDoesNotExist:
            l, created = Link.objects.get_or_create(
                title=link['description'],
                link_id=safestr(link['hash']),
                url=safestr(link['href']),
                description=safestr(link['extended']),
                rating="3",
                pub_date=datetime.datetime.strptime(link['time'], "%Y-%m-%dT%H:%M:%SZ"),
                status=0
            )
            print l.title
            if created:
                print l.title
                for t in link['tags']:
                    l.tags.add(t)
            email_link(l)


def email_link(link):
    """
    Sends an imported link to Gmail (never hurts to have backups)
    """
    subject = link.title
    body = "%s\n\n%s\n\n\nvisit site:%s\n" % (link.title, link.description, link.url)
    msg = EmailMessage(subject, striptags(body), 'sng@luxagraf.net', ['luxagraf+links@gmail.com'])
    msg.send()
    msg = EmailMessage(subject, striptags(body), 'sng@luxagraf.net', ['sng+links@luxagraf.net'])
    msg.send()